Unplanned
Last Updated: 03 Dec 2019 14:47 by ADMIN
Prevent the closing of the auto-hide area if the context menu of an element in it is opened.
Declined
Last Updated: 16 Jan 2020 12:14 by ADMIN

Hello,

I've got an issue and feel like it link to RadComboBox control.

I've got an application which displays a RadDocking with multiple elements. Some of them are RadCombobBox and they get their value from a view model.

Sometimes, and quite ofen, I've got an exception : "NullReferenceException occured in PresentationCore.dl" without more information... I can't find the origin of this exception since theis was thrown by an external code.

The awkward thing is that, when I put some breakpoints, I don't have the exception. It seems like there is a temporisation problem.

Here is an exemple of my view model code for a RadComboBox component :

        private IEnumerable<EnumMemberViewModel> _videoTypes;

        public IEnumerable<EnumMemberViewModel> VideoTypes
        {
            get
            {
                if (_videoTypes == null)
                {
                    _videoTypes = EnumDataSource.FromType<EVideoType>();
                }
                return _videoTypes;
            }
        }

        private EnumMemberViewModel _currentVideoType;
       
        public EnumMemberViewModel CurrentVideoType
        {
            get
            {
                return _currentVideoType;
            }
            set
            {
                if (_currentVideoType != value)
                {
                    _currentVideoType = value;
                    OnPropertyChanged(() => CurrentVideoType);
                    AcquireVideo.InvalidateCanExecute();
                }
            }
        }

And here my xaml code for my view (if it can help):

<UserControl x:Class="AltosIHM.SessionControlPaneRadDocking"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:system="clr-namespace:System;assembly=mscorlib"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns:local="clr-namespace:AltosIHM"
             xmlns:resx="clr-namespace:AltosIHM.Properties" 
             xmlns:iMatlabWCF="clr-namespace:MatlabWCFInterface;assembly=MatlabWCFInterface"
             xmlns:iMatlabTreatment="clr-namespace:MatlabTreatmentInterface;assembly=MatlabTreatmentInterface"
             xmlns:maskedInput="clr-namespace:Telerik.Windows.Controls.MaskedInput;assembly=Telerik.Windows.Controls.Input" 
             mc:Ignorable="d" 
             MinHeight="300" d:DesignWidth="900">
    <UserControl.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="CommonStyles.xaml"/>
            </ResourceDictionary.MergedDictionaries>

            <telerik:InvertedBooleanConverter x:Key="InvertBooleanConverter"/>
            <local:StringToDoubleConverter x:Key="StringToDoubleConverter"/>

            <Style TargetType="StackPanel" x:Key="HeaderElements">
                <Setter Property="Orientation" Value="Horizontal"/>
            </Style>

            <Style x:Key="TextHeader" TargetType="TextBlock">
                <Setter Property="VerticalAlignment" Value="Center"/>
                <Setter Property="Margin" Value="3 0"/>
            </Style>

            <Style x:Key="TextHeaderDocumentPane" TargetType="TextBlock" BasedOn="{StaticResource TextHeader}">
                <Style.Triggers>
                    <DataTrigger Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadDocumentPane}}, Path=IsPinned}" Value="False">
                        <Setter Property="Visibility" Value="Collapsed"/>
                    </DataTrigger>
                </Style.Triggers>
            </Style>

            <Style x:Key="TextHeaderPane" TargetType="TextBlock" BasedOn="{StaticResource TextHeader}">
                <Style.Triggers>
                    <DataTrigger Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadPane}}, Path=IsPinned}" Value="False">
                        <Setter Property="Visibility" Value="Collapsed"/>
                    </DataTrigger>
                </Style.Triggers>
            </Style>

            <Style x:Key="HeaderImg" TargetType="Image">
                <Setter Property="Width" Value="30"/>
            </Style>

            <Style TargetType="telerik:RadPane">
                <Setter Property="CanUserClose" Value="False"/>
                <Setter Property="RenderTransformOrigin" Value="0.5,0.5"/>
                <Style.Triggers>
                    <Trigger Property="IsPinned" Value="False">
                        <Setter Property="RenderTransform">
                            <Setter.Value>
                                <TransformGroup>
                                    <RotateTransform Angle="90"/>
                                </TransformGroup>
                            </Setter.Value>
                        </Setter>
                        <Setter Property="Margin" Value="0 0 3 0"/>
                    </Trigger>
                </Style.Triggers>
            </Style>

            <Style TargetType="telerik:RadDocumentPane">
                <Setter Property="CanUserClose" Value="False"/>
                <Setter Property="RenderTransformOrigin" Value="0.5,0.5"/>
                <Style.Triggers>
                    <Trigger Property="IsPinned" Value="False">
                        <Setter Property="RenderTransform">
                            <Setter.Value>
                                <TransformGroup>
                                    <RotateTransform Angle="90"/>
                                </TransformGroup>
                            </Setter.Value>
                        </Setter>
                        <Setter Property="Margin" Value="0 0 3 0"/>
                    </Trigger>
                </Style.Triggers>
            </Style>


            <Style x:Key="ParametersTitle" TargetType="TextBlock" BasedOn="{StaticResource CategoryTitle}">
                <Setter Property="HorizontalAlignment" Value="Left"/>
                <Setter Property="Margin" Value="10"/>
            </Style>

            <Style x:Key="SessionParametersValue" TargetType="{x:Type Control}" BasedOn="{StaticResource ParametersValues}">
                <Setter Property="Width" Value="300"/>
                <Setter Property="HorizontalAlignment" Value="Left"/>
            </Style>

            <DataTemplate x:Key="TreatmentsTemplate" DataType="{x:Type iMatlabTreatment:ITreatment}">
                <Button Style="{StaticResource TileButton}" IsEnabled="{Binding IsManageableByIHM}"
                                                    CommandParameter="{Binding}"
                                                    Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=local:SessionControlPaneRadDocking}, Path=DataContext.ActiveTreatment}">
                    <Grid>
                        <Grid.RowDefinitions>
                            <RowDefinition/>
                            <RowDefinition/>
                        </Grid.RowDefinitions>

                        <Image Source="{Binding IconPath}"/>
                        <Label Grid.Row="1" Content="{Binding MatlabTreatmentExternalName}"
                                               FontWeight="Bold" HorizontalAlignment="Center"/>
                    </Grid>
                </Button>
            </DataTemplate>
            <ItemsPanelTemplate x:Key="TreatmentItemPanel">
                <WrapPanel x:Name="PropertiesWrapPanel" Width="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerik:RadPaneGroup}}, Path=ActualWidth}"/>
            </ItemsPanelTemplate>

            <DataTemplate x:Key="IntCameraProperty">
                <StackPanel Margin="0 3">
                    <TextBlock Width="180" Text="{Binding Name}" Style="{StaticResource ParametersTitle}"/>
                    <telerik:RadNumericUpDown Value="{Binding IHMValue}" Style="{StaticResource SessionParametersValue}"
                                            IsEnabled="{Binding Accessible}" HideTrailingZeros="True"/>
                </StackPanel>
            </DataTemplate>
            <DataTemplate x:Key="IntBoundedCameraProperty">
                <StackPanel Margin="0 3">
                    <TextBlock Width="180" Text="{Binding Name}" Style="{StaticResource ParametersTitle}"/>
                    <DockPanel>
                        <telerik:RadNumericUpDown Value="{Binding IHMValue}" Style="{StaticResource SessionParametersValue}"
                                            IsEnabled="{Binding Accessible}" HideTrailingZeros="True"
                                                Minimum="{Binding ConstraintValueInt[0]}" Maximum="{Binding ConstraintValueInt[1]}"/>
                    </DockPanel>
                </StackPanel>
            </DataTemplate>
            <DataTemplate x:Key="DoubleCameraProperty">
                <StackPanel Margin="0 3">
                    <TextBlock Width="180" Text="{Binding Name}" Style="{StaticResource ParametersTitle}"/>
                    <telerik:RadNumericUpDown Value="{Binding IHMValue, Converter={StaticResource StringToDoubleConverter}}" NumberDecimalDigits="16"
                                                IsEnabled="{Binding Accessible}" Style="{StaticResource SessionParametersValue}" />
                </StackPanel>
            </DataTemplate>
            <DataTemplate x:Key="DoubleBoundedCameraProperty">
                <StackPanel Margin="0 3">
                    <TextBlock Width="180" Text="{Binding Name}" Style="{StaticResource ParametersTitle}"/>
                    <telerik:RadNumericUpDown Value="{Binding IHMValue, Converter={StaticResource StringToDoubleConverter}}"
                                                IsEnabled="{Binding Accessible}" NumberDecimalDigits="16"
                                                Minimum="{Binding ConstraintValueDouble[0]}"
                                                Maximum="{Binding ConstraintValueDouble[1]}"
                                                Style="{StaticResource SessionParametersValue}" />
                </StackPanel>
            </DataTemplate>
            <DataTemplate x:Key="StringCameraProperty">
                <StackPanel Margin="0 3">
                    <TextBlock Text="{Binding Name}" Style="{StaticResource ParametersTitle}"/>
                    <TextBox Text="{Binding IHMValue}" Style="{StaticResource SessionParametersValue}" IsReadOnly="{Binding Accessible, Converter={StaticResource InvertBooleanConverter}}"/>
                </StackPanel>
            </DataTemplate>
            <DataTemplate x:Key="EnumCameraProperty">
                <StackPanel Margin="0 3">
                    <TextBlock Text="{Binding Name}" Style="{StaticResource ParametersTitle}"/>
                    <telerik:RadComboBox ItemsSource="{Binding ConstraintValueString}" SelectedValue="{Binding IHMValue}" 
                                        IsReadOnly="{Binding Accessible, Converter={StaticResource InvertBooleanConverter}}"
                                        Width="300" HorizontalAlignment="Left"/>
                </StackPanel>
            </DataTemplate>

            <DataTemplate x:Key="CameraPropertiesTemplate">
                <ContentControl Content="{Binding}">
                    <ContentControl.Style>
                        <Style TargetType="ContentControl">
                            <Style.Triggers>
                                <MultiDataTrigger>
                                    <MultiDataTrigger.Conditions>
                                        <Condition Binding="{Binding Type}" Value="{x:Static iMatlabWCF:ETypeCameraProperty.Int}"/>
                                        <Condition Binding="{Binding IsConstraintValueExist}" Value="False"/>
                                    </MultiDataTrigger.Conditions>
                                    <Setter Property="ContentTemplate" Value="{StaticResource IntCameraProperty}"/>
                                </MultiDataTrigger>
                                <MultiDataTrigger>
                                    <MultiDataTrigger.Conditions>
                                        <Condition Binding="{Binding Type}" Value="{x:Static iMatlabWCF:ETypeCameraProperty.Int}"/>
                                        <Condition Binding="{Binding IsConstraintValueExist}" Value="True"/>
                                        <Condition Binding="{Binding Constraint}" Value="bounded"/>
                                    </MultiDataTrigger.Conditions>
                                    <Setter Property="ContentTemplate" Value="{StaticResource IntBoundedCameraProperty}"/>
                                </MultiDataTrigger>
                                <MultiDataTrigger>
                                    <MultiDataTrigger.Conditions>
                                        <Condition Binding="{Binding Type}" Value="{x:Static iMatlabWCF:ETypeCameraProperty.Double}"/>
                                        <Condition Binding="{Binding IsConstraintValueExist}" Value="False"/>
                                    </MultiDataTrigger.Conditions>
                                    <Setter Property="ContentTemplate" Value="{StaticResource DoubleCameraProperty}"/>
                                </MultiDataTrigger>
                                <MultiDataTrigger>
                                    <MultiDataTrigger.Conditions>
                                        <Condition Binding="{Binding Type}" Value="{x:Static iMatlabWCF:ETypeCameraProperty.Double}"/>
                                        <Condition Binding="{Binding IsConstraintValueExist}" Value="True"/>
                                        <Condition Binding="{Binding Constraint}" Value="bounded"/>
                                    </MultiDataTrigger.Conditions>
                                    <Setter Property="ContentTemplate" Value="{StaticResource DoubleBoundedCameraProperty}"/>
                                </MultiDataTrigger>
                                <MultiDataTrigger>
                                    <MultiDataTrigger.Conditions>
                                        <Condition Binding="{Binding Type}" Value="{x:Static iMatlabWCF:ETypeCameraProperty.String}"/>
                                        <Condition Binding="{Binding IsConstraintValueExist}" Value="False"/>
                                    </MultiDataTrigger.Conditions>
                                    <Setter Property="ContentTemplate" Value="{StaticResource StringCameraProperty}"/>
                                </MultiDataTrigger>
                                <MultiDataTrigger>
                                    <MultiDataTrigger.Conditions>
                                        <Condition Binding="{Binding Type}" Value="{x:Static iMatlabWCF:ETypeCameraProperty.String}"/>
                                        <Condition Binding="{Binding IsConstraintValueExist}" Value="True"/>
                                        <Condition Binding="{Binding Constraint}" Value="enum"/>
                                    </MultiDataTrigger.Conditions>
                                    <Setter Property="ContentTemplate" Value="{StaticResource EnumCameraProperty}"/>
                                </MultiDataTrigger>
                            </Style.Triggers>
                        </Style>
                    </ContentControl.Style>
                </ContentControl>
            </DataTemplate>
        </ResourceDictionary>
    </UserControl.Resources>

    <Grid>
        <DockPanel Background="LightGray">
            <telerik:RadDocking Name="SessionMainPanel" PaneActivationMode="LastActivated" Background="LightGray" 
                                ElementLoaded="SessionMainPanel_ElementLoaded">
                <telerik:RadDocking.DocumentHost>
                    <telerik:RadSplitContainer>
                        <telerik:RadPaneGroup Background="AliceBlue" telerik:StyleManager.Theme="Fluent">
                            <telerik:RadDocumentPane Title="{x:Static resx:Resources.Treatments}" telerik:RadDocking.SerializationTag="TreatmentsPane"
                                                     CanUserClose="False" IsDragDisabled="True">
                                <telerik:RadDocumentPane.Header>
                                    <StackPanel x:Name="TreamtentPanel" Style="{StaticResource HeaderElements}">
                                        <TextBlock Text="{x:Static resx:Resources.Treatments}" Style="{StaticResource TextHeaderDocumentPane}"/>
                                        <Image Source="/icons/matlab.png" Style="{StaticResource HeaderImg}"/>
                                    </StackPanel>
                                </telerik:RadDocumentPane.Header>
                                <telerik:RadTileList ItemsSource="{Binding Treatments}" ItemTemplate="{StaticResource TreatmentsTemplate}"
                                         HorizontalAlignment="Center" VerticalTilesAlignment="Center">
                                </telerik:RadTileList>
                            </telerik:RadDocumentPane>
                        </telerik:RadPaneGroup>
                    </telerik:RadSplitContainer>
                </telerik:RadDocking.DocumentHost>
                <telerik:RadSplitContainer InitialPosition="DockedLeft" telerik:StyleManager.Theme="Fluent">
                    <telerik:RadPaneGroup>
                        <telerik:RadPane Title="{x:Static resx:Resources.CameraParameters}" telerik:RadDocking.SerializationTag="CameraParamsPane"
                                         IsPinned="False" CanUserClose="False">
                            <telerik:RadPane.Header>
                                <StackPanel x:Name="CameraParamsPanel" Style="{StaticResource HeaderElements}">
                                    <TextBlock Text="{x:Static resx:Resources.CameraParameters}" Style="{StaticResource TextHeaderPane}"/>
                                    <Image Source="/icons/camera.png" Style="{StaticResource HeaderImg}"/>
                                </StackPanel>
                            </telerik:RadPane.Header>
                            <ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Hidden" Width="Auto" Background="#f6fcff" >
                                <ScrollViewer.Resources>
                                    <Style TargetType="TextBlock">
                                        <Style.Triggers>
                                            <DataTrigger Binding="{Binding AllCameraProperties.Count}" Value="0">
                                                <Setter Property="Visibility" Value="Visible"/>
                                            </DataTrigger>
                                        </Style.Triggers>
                                    </Style>

                                    <Style TargetType="StackPanel">
                                        <Style.Triggers>
                                            <DataTrigger Binding="{Binding AllCameraProperties.Count}" Value="0">
                                                <Setter Property="Visibility" Value="Collapsed"/>
                                            </DataTrigger>
                                        </Style.Triggers>
                                    </Style>
                                </ScrollViewer.Resources>
                                <Grid>
                                    <TextBlock HorizontalAlignment="Center" VerticalAlignment="Top" FontSize="25"
                                    Margin="0 25" Style="{StaticResource CategoryTitle}" Visibility="Collapsed"
                                    Text="{x:Static resx:Resources.NoCameraProperty}"/>
                                    <StackPanel>
                                        <ListView HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
                                                  ItemsSource="{Binding AllCameraProperties}" Background="#eff9ff"
                                                  ItemTemplate="{StaticResource CameraPropertiesTemplate}"
                                                  ItemsPanel="{StaticResource TreatmentItemPanel}"/>
                                        <WrapPanel HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0 0 70 0">
                                            <telerik:RadButton Margin="10"
                                                    Command="{Binding WriteProperties}" Content="{x:Static resx:Resources.WriteParameters}"/>

                                            <telerik:RadButton Margin="10" 
                                                    Command="{Binding ResetProperties}" Content="{x:Static resx:Resources.ResetParameters}"/>

                                            <telerik:RadButton Margin="10"
                                                    Command="{Binding SetProperties}" Content="{x:Static resx:Resources.SetParameters}"/>

                                        </WrapPanel>
                                    </StackPanel>
                                </Grid>
                            </ScrollViewer>
                        </telerik:RadPane>
                        <telerik:RadPane Title="{x:Static resx:Resources.AcquisitionParameters}" telerik:RadDocking.SerializationTag="AcquisitionParamsPane"
                                         IsPinned="False" CanUserClose="False">
                            <telerik:RadPane.Header>
                                <StackPanel x:Name="AcquisitionParamsPanel" Style="{StaticResource HeaderElements}">
                                    <TextBlock Text="{x:Static resx:Resources.AcquisitionParameters}" Style="{StaticResource TextHeaderPane}"/>
                                    <Image Source="/icons/acquisitionParams.png" Style="{StaticResource HeaderImg}"/>
                                </StackPanel>
                            </telerik:RadPane.Header>
                            <ScrollViewer VerticalScrollBarVisibility="Visible">
                                <StackPanel Background="#f6fcff">
                                    <telerik:RadExpander Header="{x:Static resx:Resources.Images}" Background="LightSteelBlue" IsExpanded="True">
                                        <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Hidden">
                                            <Grid x:Name="ImagesParametersGrid" Background="#f6fcff">
                                                <Grid.Resources>
                                                    <Style TargetType="StackPanel">
                                                        <Setter Property="Margin" Value="10 8"/>
                                                    </Style>
                                                </Grid.Resources>
                                                <Grid.RowDefinitions>
                                                    <RowDefinition/>
                                                    <RowDefinition/>
                                                    <RowDefinition/>
                                                    <RowDefinition/>
                                                    <RowDefinition/>
                                                </Grid.RowDefinitions>
                                                <Grid.ColumnDefinitions>
                                                    <ColumnDefinition/>
                                                    <ColumnDefinition/>
                                                    <ColumnDefinition/>
                                                </Grid.ColumnDefinitions>

                                                <StackPanel>
                                                    <TextBlock Text="{x:Static resx:Resources.FrameTrigger}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadNumericUpDown Style="{StaticResource SessionParametersValue}"
                                                          Value="{Binding FramePerTriggerNumber}" HideTrailingZeros="True" Minimum="0"/>
                                                </StackPanel>

                                                <StackPanel Grid.Column="1">
                                                    <TextBlock Text="{x:Static resx:Resources.TriggerRepeat}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadNumericUpDown Style="{StaticResource SessionParametersValue}"
                                                          Value="{Binding TriggerRepeatNumber}" HideTrailingZeros="True" Minimum="0"/>
                                                </StackPanel>

                                                <StackPanel Grid.Column="2">
                                                    <TextBlock Text="{x:Static resx:Resources.TriggerFrameDelay}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadNumericUpDown Style="{StaticResource SessionParametersValue}"
                                                          Value="{Binding TriggerFrameDelayNumber}" HideTrailingZeros="True" Minimum="0"/>
                                                </StackPanel>

                                                <StackPanel Grid.Row="1">
                                                    <TextBlock Text="{x:Static resx:Resources.FrameGrabInterval}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadNumericUpDown Style="{StaticResource SessionParametersValue}"
                                                          Value="{Binding FrameGrabInterval}" HideTrailingZeros="True" Minimum="1"/>
                                                </StackPanel>

                                                <StackPanel Grid.Row="1" Grid.Column="1">
                                                    <TextBlock Text="{x:Static resx:Resources.TriggerType}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadComboBox ItemsSource="{Binding Types}" SelectedIndex="1" SelectedItem="{Binding CurrentType, Mode=TwoWay}" Width="300" HorizontalAlignment="Left"/>
                                                </StackPanel>

                                                <StackPanel Grid.Row="1" Grid.Column="2">
                                                    <TextBlock Text="{x:Static resx:Resources.FilePrefix}" Style="{StaticResource CategoryTitle}"/>
                                                    <TextBox Style="{StaticResource SessionParametersValue}" Text="{Binding FilePrefix}"/>
                                                </StackPanel>


                                                <Grid Grid.Row="2" Grid.ColumnSpan="3" Margin="10 8">
                                                    <Grid.ColumnDefinitions>
                                                        <ColumnDefinition/>
                                                    </Grid.ColumnDefinitions>
                                                    <Grid.RowDefinitions>
                                                        <RowDefinition/>
                                                        <RowDefinition/>
                                                        <RowDefinition/>
                                                    </Grid.RowDefinitions>
                                                    <TextBlock Text="{x:Static resx:Resources.ImagesDirectory}" Style="{StaticResource CategoryTitle}"/>
                                                    <TextBox IsReadOnly="True" Text="{Binding FolderName}" Style="{StaticResource SessionParametersValue}" Width="Auto" HorizontalAlignment="Stretch" Grid.Row="1"/>
                                                    <telerik:RadButton Margin="8" HorizontalAlignment="Right" Grid.Row="2"
                                                   Content="{x:Static resx:Resources.ChooseFolder}" 
                                                   Command="{Binding ChooseFolder}"/>
                                                </Grid>

                                                <StackPanel Grid.Row="3">
                                                    <TextBlock Text="{x:Static resx:Resources.GenerateMean}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadToggleButton Style="{StaticResource RadToggleSwitch}" HorizontalAlignment="Left" Margin="20 0 0 0"
                                                                 IsChecked="{Binding IsMeanGenerate}"/>
                                                </StackPanel>

                                                <StackPanel Grid.Row="3" Grid.Column="1">
                                                    <TextBlock Text="{x:Static resx:Resources.Format}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadComboBox ItemsSource="{Binding Formats}" SelectedIndex="0" SelectedItem="{Binding CurrentFormat, Mode=TwoWay}" Width="300" HorizontalAlignment="Left"/>
                                                </StackPanel>

                                                <StackPanel Grid.Row="3" Grid.Column="2">
                                                    <TextBlock Text="{x:Static resx:Resources.BitDepth}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadToggleButton Style="{StaticResource RadToggleSwitch}" HorizontalAlignment="Left" Margin="20 0 0 0"
                                                                 IsChecked="{Binding ApplyBitDepth}"/>
                                                </StackPanel>
                                            </Grid>
                                        </ScrollViewer>
                                    </telerik:RadExpander>

                                    <telerik:RadExpander  Header="{x:Static resx:Resources.Video}" Background="LightSteelBlue" IsExpanded="True">
                                        <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Hidden">
                                            <Grid x:Name="VideoParametersGrid" Background="#f6fcff">
                                                <Grid.Resources>
                                                    <Style TargetType="StackPanel">
                                                        <Setter Property="Margin" Value="10 5"/>
                                                    </Style>
                                                </Grid.Resources>
                                                <Grid.RowDefinitions>
                                                    <RowDefinition/>
                                                    <RowDefinition/>
                                                </Grid.RowDefinitions>
                                                <Grid.ColumnDefinitions>
                                                    <ColumnDefinition/>
                                                    <ColumnDefinition/>
                                                </Grid.ColumnDefinitions>

                                                <Grid Grid.ColumnSpan="2" Margin="10 8">
                                                    <Grid.ColumnDefinitions>
                                                        <ColumnDefinition/>
                                                    </Grid.ColumnDefinitions>
                                                    <Grid.RowDefinitions>
                                                        <RowDefinition/>
                                                        <RowDefinition/>
                                                        <RowDefinition/>
                                                    </Grid.RowDefinitions>
                                                    <TextBlock Text="{x:Static resx:Resources.VideoDirectory}" Style="{StaticResource CategoryTitle}"/>
                                                    <TextBox IsReadOnly="True" Text="{Binding VideoFolderName}" Style="{StaticResource SessionParametersValue}" Width="Auto" HorizontalAlignment="Stretch" Grid.Row="1"/>
                                                    <telerik:RadButton Margin="8" HorizontalAlignment="Right" Grid.Row="2"
                                                   Content="{x:Static resx:Resources.ChooseFolder}" 
                                                   Command="{Binding ChooseVideoFolder}"/>
                                                </Grid>

                                                <StackPanel Grid.Row="1">
                                                    <TextBlock Text="{x:Static resx:Resources.FileName}" Style="{StaticResource CategoryTitle}"/>
                                                    <TextBox Style="{StaticResource SessionParametersValue}" Text="{Binding VideoFileName}"/>
                                                </StackPanel>

                                                <StackPanel Grid.Row="1" Grid.Column="1">
                                                    <TextBlock Text="{x:Static resx:Resources.Format}" Style="{StaticResource CategoryTitle}"/>
                                                    <telerik:RadComboBox ItemsSource="{Binding VideoTypes}" SelectedIndex="2" SelectedItem="{Binding CurrentVideoType, Mode=TwoWay}" Width="300" HorizontalAlignment="Left"/>
                                                </StackPanel>
                                            </Grid>
                                        </ScrollViewer>
                                    </telerik:RadExpander>
                                </StackPanel>
                            </ScrollViewer>
                        </telerik:RadPane>
                        <telerik:RadPane Title="{x:Static resx:Resources.TreatmentParameters}" telerik:RadDocking.SerializationTag="TreatmentParamsPane"
                                         IsPinned="False" CanUserClose="False">
                            <telerik:RadPane.Header>
                                <StackPanel x:Name="TreatmentsParamsPanel" Style="{StaticResource HeaderElements}">
                                    <TextBlock Text="{x:Static resx:Resources.TreatmentParameters}" Style="{StaticResource TextHeaderPane}"/>
                                    <Image Source="/icons/settings.png" Style="{StaticResource HeaderImg}"/>
                                </StackPanel>
                            </telerik:RadPane.Header>
                            <StackPanel>
                                <TextBlock Text="{x:Static resx:Resources.DefaultColor}" Style="{StaticResource CategoryTitle}"/>
                                <telerik:RadColorEditor SelectedColor="{Binding ColorTreatments, Mode=TwoWay}" ColorMode="RGB" />
                            </StackPanel>
                        </telerik:RadPane>
                        <telerik:RadPane Title="{x:Static resx:Resources.ViewerParameters}" telerik:RadDocking.SerializationTag="ViewerParamsPane"
                                         IsPinned="False" CanUserClose="False">
                            <telerik:RadPane.Header>
                                <StackPanel x:Name="ViewerParamsPanel" Style="{StaticResource HeaderElements}">
                                    <TextBlock Text="{x:Static resx:Resources.ViewerParameters}" Style="{StaticResource TextHeaderPane}"/>
                                    <Image Source="/icons/viewerParams.png" Style="{StaticResource HeaderImg}"/>
                                </StackPanel>
                            </telerik:RadPane.Header>
                            <Grid>
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="Auto"/>
                                    <RowDefinition Height="Auto"/>
                                    <RowDefinition Height="Auto"/>
                                </Grid.RowDefinitions>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition/>
                                    <ColumnDefinition/>
                                </Grid.ColumnDefinitions>

                                <StackPanel>
                                    <TextBlock Text="{x:Static resx:Resources.ColorsSpace}" Style="{StaticResource CategoryTitle}"/>
                                    <telerik:RadComboBox ItemsSource="{Binding ColorsSpaces}" SelectedIndex="0" SelectedItem="{Binding CurrentColorsSpace, Mode=TwoWay}" Width="300" HorizontalAlignment="Left"/>
                                </StackPanel>
                                <StackPanel Grid.Column="1">
                                    <StackPanel.Style>
                                        <Style TargetType="StackPanel">
                                            <Setter Property="IsEnabled" Value="False"/>
                                            <Style.Triggers>
                                                <DataTrigger Binding="{Binding CurrentColorsSpace.Value}" Value="{x:Static iMatlabWCF:EReturnedColorSpace.Bayer}">
                                                    <Setter Property="IsEnabled" Value="True"/>
                                                </DataTrigger>
                                            </Style.Triggers>
                                        </Style>
                                    </StackPanel.Style>
                                    <TextBlock Text="{x:Static resx:Resources.ColorFilter}" Style="{StaticResource CategoryTitle}"/>
                                    <telerik:RadComboBox ItemsSource="{Binding ColorFilter}" SelectedIndex="0" SelectedItem="{Binding CurrentColorFilter, Mode=TwoWay}" Width="300" HorizontalAlignment="Left"/>
                                </StackPanel>

                                <telerik:RadButton Grid.Row="1" Grid.Column="1" HorizontalAlignment="Right" Margin="20 10"
                                           Command="{Binding UpdateColorsSapce}" Content="{x:Static resx:Resources.UpdateColorsSpace}"/>

                            </Grid>
                        </telerik:RadPane>
                        <telerik:RadPane Title="HiddenPane" IsPinned="False" telerik:RadDocking.SerializationTag="HiddenPane"
                                         Visibility="Hidden" Width="40" Height="0" Margin="0"/>
                    </telerik:RadPaneGroup>
                </telerik:RadSplitContainer>
            </telerik:RadDocking>
        </DockPanel>
        <StackPanel x:Name="ButtonsPanel" Width="50" HorizontalAlignment="Left" VerticalAlignment="Bottom">
            <telerik:RadToggleButton ToolTip="{x:Static resx:Resources.Viewer}" Margin="5 2"
                                     IsChecked="{Binding Path=IsViewerDisplayed, Mode=OneWay}"
                                     Command="{Binding Path=ShowOrCloseViewerCommand}">
                <Image Source="/icons/viewer.png" Style="{StaticResource HeaderImg}"/>
            </telerik:RadToggleButton>
            <telerik:RadButton ToolTip="{x:Static resx:Resources.AcquireImages}" Command="{Binding AcquireImages}"
                               Margin="5 2" Padding="5" >
                <Image Source="/icons/acquireImg.png" Style="{StaticResource HeaderImg}"/>
            </telerik:RadButton>
            <telerik:RadToggleButton ToolTip="{Binding AcquireVideoLabel}" Command="{Binding AcquireVideo}" 
                                     IsChecked="{Binding IsAcquiringVideo, Mode=OneWayToSource}" Margin="5 2">
                <Image Source="/icons/acquireVideo.png" Style="{StaticResource HeaderImg}"/>
            </telerik:RadToggleButton>
        </StackPanel>
    </Grid>
</UserControl>
    


Completed
Last Updated: 31 May 2017 13:02 by ADMIN

Available in LIB version: 2017.2.605
Completed
Last Updated: 09 Mar 2020 08:49 by ADMIN
Release LIB 2020.1.309 (03/09/2020)
When a RadPaneGroup is not in the DocumentHost and it has only 1 RadPane, UI elements placed in that pane cannot be selected in the designer.
Unplanned
Last Updated: 25 Mar 2020 09:58 by ADMIN
Currently the CloseButtonPosition property of the RadDocking only takes effect when a RadPaneGroup is inside the DocumentHost. We can introduce a way to place the close button in the pane when a group is outside the DocumentHost (for example in a ToolWindow).
Declined
Last Updated: 20 Dec 2016 12:53 by ADMIN
Created by: Michael
Comments: 2
Category: Docking
Type: Bug Report
1

			
Duplicated
Last Updated: 02 Apr 2020 15:54 by ADMIN

Like RanTabControl

Need this for an application with lots of tabs wich would not fit in the top or bottom template.

Maybe it works with a customizable TabStripTemplate where i can implement e.g. a GridView or something

Like this with a scrollbar (used TabControl PRISM example for this)

Completed
Last Updated: 24 Aug 2020 10:56 by ADMIN
Release LIB 2020.2.824
RichTextBox, GridView, TreeListView and ScheduleView handle [Ctrl + Tab] the same way as [Tab] and this way when they are inside Docking, the Navigator cannot open. These controls should not handle the Ctrl + Tab.  
Declined
Last Updated: 02 Jul 2020 15:20 by ADMIN

The RadDocking control is not registering position changes of the docking window when RadDocking is in a WPF UserControl embedded in a WinForms ElementHost:

This appears to only apply to the main window; if you (at runtime) move one of the example panes into a separate window, the compass on that window displays in the correct position when you undock the other pane:

 

I've attached a stripped down solution that reproduces the issue (originally noticed using 2018R2 when rewriting legacy VB WinForms in C# WPF user controls as part of a tech refresh; attached demo is using 2020R2 .NET 4.5 binaries).

Completed
Last Updated: 07 Nov 2016 15:04 by ADMIN
Available in LIB version 2016.3.1107, it will be also available in the 2017 R1 release.
Completed
Last Updated: 06 Nov 2020 13:59 by ADMIN
Release LIB 2020.3.1109 (11/09/2020)
The ToolWindows of the RadDocking control remain open even if the application is minimized when a remote connection is restored.
Completed
Last Updated: 13 Oct 2020 14:49 by ADMIN
Release R3 2020 SP1
Setting CloseTabsOnMouseMiddleButtonDown on the RadPaneGroup to true will not respect CanUserClose property of RadPane set to false.
Completed
Last Updated: 13 Nov 2020 18:09 by ADMIN
Release LIB 2020.3.16
When the CloseTabsOnMouseMiddleButtonDown property is set to True and the user clicks on an unselected tab, it will be not closed, the selected one is closed instead. 
Completed
Last Updated: 01 Feb 2021 11:11 by ADMIN
Release LIB 2021.1.201 (2/1/2021)
Nested Docking can't be found by UI Automation framework.
Completed
Last Updated: 01 Oct 2021 10:44 by ADMIN
Release LIB 2021.3.1004 (4 Oct 2021)
An unpinned RadPane that is being resized starts shrinking after it passes a certain threshold. 
Unplanned
Last Updated: 03 Aug 2016 12:51 by BENN
When dragging a pane in Deferred DragDropMode, if the moue cursor is far from the header, then the Drag Cue appears far from the cursor.
Completed
Last Updated: 25 Feb 2021 13:59 by ADMIN
Release LIB 2021.1.301 (1/03/2021)
The visual clue, which shows where a ToolWindow will be dropped within the RadPaneGroup is not shown.
Unplanned
Last Updated: 03 Aug 2016 12:52 by ADMIN
On some rare cases, RadPane.OnPaneLoaded is being called before ApplyTemplate was called, and therefore, UpdateAllowDrag which tries to find the first child of the rad pane (the "wrapper" grid) fails, and pane remains undraggable.

To reproduce this issue, I have a button that when clicking on it, it adds a new pane (There is a collection of View Models, that when items are added or removed, then a code that is using binding to that collection adds or removes a pane.

The scenario happens when the system is laggy (For example, heavy UI on the panes content), and I'm adding several view models to that collection.
It doesn't always happen, but sometimes, one of more of the panes are not draggable.
I can clearly see that the OnPaneLoaded was called before the OnApplyTemplate was.

Maybe it can be a good idea to call UpdateAllowDrag on the OnApplyTemplate function if the OnLoad was called first.

Unplanned
Last Updated: 03 Jan 2017 21:10 by BENN
On Deferred mode, you can still undock panes (for example, but context menu).
The problem starts when you want to dock them back, When moving a pane above the compass, it hides the compass (And this problem is a PITA when you docking with the inner compass (rather than the root compass), since the left,top, center etc.. arrows are near to each other (so you are not 100% sure you hit the right arrow).