In this scenario, the RadGridView.DataSource property is set to Microsoft.EntityFrameworkCore.ChangeTracking.ObservableCollectionListSource. When the RadGridView.Rows.Remove() method is called an IndexOutOfRange exception is thrown.
1. PropertyGridTextBoxEditor becomes smaller height.
2. DropDownListEditorElement also has a small height and popup appear with a vertical scrollbar.
Legend Item Text is not visible in Windows11Dark. This is because the LegendItem A possible workaround is to subscribe to the VisualItemCreating event. In the event handler, we can create a new LegendItemElement and set its ForeColor.
private void LegendElement_VisualItemCreating(object sender, LegendItemElementCreatingEventArgs e)
{
e.ItemElement = new LegendItemElement(e.LegendItem) { ForeColor = Color.Black };
}
To reproduce:
ThemeResolutionService.ApplicationThemeName = "Windows11"
Dim UserGroup As New DescriptionTextListDataItem
With UserGroup
.Text = "Admins"
'.Font = New Font("Microsoft Sans Serif", 9.75, FontStyle.Bold)
.DescriptionText = "System Administrations Group"
End With
Me.RadListControl1.Items.Add(UserGroup)
Me.RadListControl1.ItemHeight = 50Actual result:
Expected result:
2. Navigate to a folder with many subfolders
3. Type something is search
You will see that the whole QSF freezes.
Repro-steps:
- Create a RadGridView
- MultiSelect = true
- SelectionMode = CellSelect
- Fill it with lots of cells (in my case: 7 columns, 8544 rows)
- Press CTRL-A
- Press Delete
Expected behavior:
- All rows are gone
Observed behavior:
- 50/50 change that some rows remain.
I traced the problem back to the method GridViewSleectedCellsCollection.IsSelected / GetHashCodeString.
internal bool IsSelected(GridViewRowInfo row, GridViewColumn column) => row != null && column is GridViewDataColumn && this.hashtable.Contains((object) this.GetHashCodeString(row, column));When a cell is selected with GridViewCellInfo.IsSelected = true, it checks if it has already been selected. It does so by calling GridViewSleectedCellsCollection.IsSelected. which checks if a HasCodeString is already in a hashtable. But, when another selected cell has the same HasCodeString, the result is (incorrectly) true, which will result in not added it to the collection of selected cells.
I guess that is can be easily fixed by changing:
private string GetHashCodeString(GridViewRowInfo row, GridViewColumn column)
{
int hashCode = row.GetHashCode();
string str1 = hashCode.ToString();
hashCode = column.GetHashCode();
string str2 = hashCode.ToString();
return str1 + str2;
}to:
private string GetHashCodeString(GridViewRowInfo row, GridViewColumn column)
{
int hashCode = row.GetHashCode();
string str1 = hashCode.ToString();
hashCode = column.GetHashCode();
string str2 = hashCode.ToString();
return str1 + "_" + str2;
}Since hashcodes 1 + 23 will result in the same string as hashcodes 12 + 3.
Making this change will reduce the problem significantly, but not entirely since hashCodes will never be unique.
Run the attached project and select a new value from the drop down for RadTimePicker:
************** Exception Text ************** System.NullReferenceException: Object reference not set to an instance of an object. at Telerik.WinControls.UI.RadTimePickerElement.set_Value(Object value) in C:\Work\Development\RadControls\RadControlsUI\RadTimePicker\Elements\RadTimePickerElement.cs:line 594 at Telerik.WinControls.UI.RadTimePickerContentElement.element_Click(Object sender, EventArgs e) in C:\Work\Development\RadControls\RadControlsUI\RadTimePicker\Elements\ContentPart\RadTimePickerContentElement.cs:line 585 at Telerik.WinControls.RadElement.OnClick(EventArgs e) in C:\Work\Development\RadControls\RadControl\TPF\Element\RadElement.cs:line 5094 at Telerik.WinControls.RadElement.DoClick(EventArgs e) in C:\Work\Development\RadControls\RadControl\TPF\Element\RadElement.cs:line 5158 at Telerik.WinControls.RadElement.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args) in C:\Work\Development\RadControls\RadControl\TPF\Element\RadElement.cs:line 4272 at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args) in C:\Work\Development\RadControls\RadControl\TPF\Element\RadItem.cs:line 779 at Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args) in C:\Work\Development\RadControls\RadControl\TPF\Element\RadElement.cs:line 4179 at Telerik.WinControls.RadElement.DoMouseUp(MouseEventArgs e) in C:\Work\Development\RadControls\RadControl\TPF\Element\RadElement.cs:line 5271 at Telerik.WinControls.RadElement.CallDoMouseUp(MouseEventArgs e) in C:\Work\Development\RadControls\RadControl\TPF\Element\RadElement.cs:line 5493 at Telerik.WinControls.ComponentInputBehavior.OnMouseUp(MouseEventArgs e) in C:\Work\Development\RadControls\RadControl\TPF\Control\ComponentInputBehavior.cs:line 75 at Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e) in C:\Work\Development\RadControls\RadControl\TPF\Control\RadControl.cs:line 1206 at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at Telerik.WinControls.RadControl.WndProc(Message& m) in C:\Work\Development\RadControls\RadControl\TPF\Control\RadControl.cs:line 1554 at Telerik.WinControls.UI.RadPopupControlBase.WndProc(Message& m) in C:\Work\Development\RadControls\RadControlsUI\GenericPopup\RadPopupControlBase.cs:line 795 at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
Workaround:
Timer t = new Timer();
private void RadTimePicker1_ValueChanged(object sender, EventArgs e)
{
if (radTimePicker1.Value == null) return;
var timeval = ((DateTime)radTimePicker1.Value).TimeOfDay;
if (timeval == TimeSpan.Zero)
{
t = new Timer();
t.Interval = 500;
t.Tick += T_Tick; t.Start();
}
}
private void T_Tick(object sender, EventArgs e)
{
t.Stop();
this.radTimePicker1.ValueChanged -= RadTimePicker1_ValueChanged;
this.radTimePicker1.Value = null;
this.radTimePicker1.ValueChanged += RadTimePicker1_ValueChanged;
}
In this case, the Anchor property of the Separator is set to Left, Top, Right. When we close multiple times the designer, the width of the Separator is increased. A possible workaround here is to avoid adding Anchor to the right in the designer and set it in code.
public RadForm1()
{
InitializeComponent();
this.radSeparator1.Anchor = AnchorStyles.Left | AnchorStyles.Top | AnchorStyles.Right;
}
Add a RadFilterView and a RadGridView. Associate the two controls and add programmatically FilterDescriptors to the RadFilterView control. The UI doesn't show any filtering applied.
Me.RadFilterView1.FilterViewElement.LoadCategoriesAsync = False
Me.RadGridView1.DataSource = Me.ProductsBindingSource
Me.RadGridView1.EnableFiltering = True
Me.RadGridView1.ShowFilteringRow = False
AddHandler Me.RadFilterView1.FilterChanged, AddressOf Me.RadFilterView1_FilterChanged
AddHandler Me.RadFilterView1.FilterViewElement.CategoryCreating, AddressOf Me.FilterViewElement_CategoryCreating
AddHandler Me.RadFilterView1.FilterViewElement.CategoryCreated, AddressOf Me.FilterViewElement_CategoryCreated
Me.RadFilterView1.AssociatedControl = Me.RadGridView1
Dim filter As New FilterDescriptor With {
.PropertyName = "ProductID",
.Operator = FilterOperator.IsLessThanOrEqualTo,
.Value = 5,
.IsFilterEditor = True
}
Dim filter2 As New FilterDescriptor With {
.PropertyName = "CategoryID",
.Operator = FilterOperator.IsLessThanOrEqualTo,
.Value = 4,
.IsFilterEditor = True
}
Me.RadFilterView1.FilterDescriptors.AddRange(filter, filter2)
Use the code snippet:
Sub New()
InitializeComponent()
Me.RadSpinEditor1.EnableNullValueInput = True
Me.RadSpinEditor1.NullableValue = Nothing
Console.WriteLine("Value " & Me.RadSpinEditor1.Value & " END")
Console.WriteLine("NullableValue " & Me.RadSpinEditor1.NullableValue & " END")
End Sub
Private Sub RadSpinEditor1_NullableValueChanged(sender As Object, e As EventArgs) Handles RadSpinEditor1.NullableValueChanged
Console.WriteLine("NullableValueChanged " & Me.RadSpinEditor1.NullableValue & " END")
End SubFollow the steps:
1. Run the project with the above code and enter 0 in the spin editor. Navigate to the next control. You will notice that the NullableValueChanged event doesn't get fired.
2. Focus the spin editor again and enter 5. Navigate to the next control. The NullableValueChanged event is fired as expected.
3. Focus again the spin editor, select the text and press Del. Navigate to the next control. The NullableValueChanged event is fired again as expected.
4. Focus again the spin editor and enter 0. Navigate to the next control. You will notice that the NullableValueChanged event is fired.
5. Focus again the spin editor, select the text and press Del. Navigate to the next control. The NullableValueChanged event is fired again as expected.
6. Focus again the spin editor and enter 0. Navigate to the next control. You will notice that the NullableValueChanged event is NOT fired in this case.
Follow the steps:
1.Group by Description.
2. Expand the groups
3. Sort by Id
4. Try expanding the hierarchical level. You will notice that some of the rows disappear.
Please refer to the attached gif file illustrating the steps for replicating the issue.
Steps to reproduce:
1. Bind the grid to BindingList
2. Call BestFitColumns method in form's constructor
3. Use Fluent/Crystal theme
4. Rebind the grid by setting DataSource=null
5. Exception is thrown
Stack trace:
en Telerik.WinControls.UI.BestFitHelper.SetColumnWidth(GridViewColumn column, Single desiredWidth) en Telerik.WinControls.UI.BestFitHelper.BestFitColumnCore(GridViewColumn column, BestFitColumnMode mode) en Telerik.WinControls.UI.BestFitHelper.ProcessRequests() en Telerik.WinControls.UI.GridTableElement.UpdateAll() en Telerik.WinControls.UI.GridTableElement.UpdateViewCore(Object sender, DataViewChangedEventArgs args) en Telerik.WinControls.UI.GridTableElement.UpdateView(Object sender, DataViewChangedEventArgs args) en Telerik.WinControls.UI.GridTableElement.ProcessTemplateEvent(GridViewEvent eventData) en Telerik.WinControls.UI.GridTableElement.Telerik.WinControls.UI.IGridViewEventListener.ProcessEvent(GridViewEvent eventData) en Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessCollection(GridViewEvent gridEvent, PriorityWeakReferenceList list, GridEventProcessMode processMode) en Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessEvent(GridViewEvent gridEvent) en Telerik.WinControls.UI.GridViewSynchronizationService.NotifyListeners(GridViewEvent gridEvent) en Telerik.WinControls.UI.GridViewSynchronizationService.FlushEvents() en Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewEvent gridEvent) en Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewTemplate template, GridViewEvent eventData, Boolean postUI) en Telerik.WinControls.UI.GridViewTemplate.DispatchEvent(GridViewEvent gridEvent, Boolean postUI) en Telerik.WinControls.UI.GridViewTemplate.DispatchDataViewChangedEvent(Object sender, DataViewChangedEventArgs args) en Telerik.WinControls.UI.GridViewTemplate.OnViewChanged(Object sender, DataViewChangedEventArgs e) en Telerik.WinControls.UI.MasterGridViewTemplate.OnViewChanged(Object sender, DataViewChangedEventArgs e) en Telerik.WinControls.UI.GridViewTemplate.CollectionView_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) en Telerik.WinControls.Data.RadCollectionView`1.OnCollectionChanged(NotifyCollectionChangedEventArgs args) en Telerik.WinControls.Data.RadDataView`1.RebuildData(Boolean notify) en Telerik.WinControls.Data.RadDataView`1.RefreshOverride() en Telerik.WinControls.Data.RadDataView`1.ProcessCollectionChanged(NotifyCollectionChangedEventArgs args) en Telerik.WinControls.Data.RadCollectionView`1.source_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) en Telerik.WinControls.Data.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e) en Telerik.WinControls.Data.RadListSource`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e) en Telerik.WinControls.Data.RadListSource`1.EndUpdate(Boolean notifyUpdates) en Telerik.WinControls.Data.RadListSource`1.Initialize() en Telerik.WinControls.Data.RadListSource`1.Bind(Object dataSource, String dataMember) en Telerik.WinControls.Data.RadListSource`1.set_DataSource(Object value) en Telerik.WinControls.UI.GridViewTemplate.set_DataSource(Object value) en Telerik.WinControls.UI.RadGridView.set_DataSource(Object value)
Hi
Please find attached sample project having 2 different reference folder(Telerik2018,Telerik2020) for Telerik.
Code flow & Issue description: I have Event "radGridView1_EditorRequired" in which i have attached another event on value changed "Editor_ValueChanged" in which we get data gron DropdownListElement using ((RadDropDownListElement)(sender)).SelectedValue.
Issue is when we use version (2018.3.1016.40) we get selected value text, in case of current version (2020.1.218.40) we get null value.
Current version DLL 2020.1.218.40 (Issue in current version)
Previous version DLL 2018.3.1016.40 (Working fine)
Note : I have also attached both version of Telerik DLL in sample project, you can reproduce issue by referencing to 2020.1.218.40 version. After selecting values as shown in attached screenshot you will get null value as shown in another screenshot.
Please find attached screenshot for selecting values to reproduce issue as well where we get null value.
Thanks and Regards
I have a radGridView with MutliSelect set to true and SelectionMode set to FullRowSelect. A theme is applied, and this behavior is seen with other themes too. Several columns are pinned to the left.
When I multi-select rows using the shift or control buttons by clicking one of the cells under the frozen columns, the row is selected and colored accordingly, except for the cell that was actually clicked which remains with the unselected color.
If I multi-select by clicking on one of the cells under an unpinned column, the full row is selected as expected.
In the image below, I held down shift and selected the first and third row in sequence under the Officer column.
How can I fix this to show the complete row selected?
UI for WinForms - Latest version.
RadRibbonBarBackstageView - Edit UI Elements
RootRadElement.BackstageViewElement.BackstageItemsPanelElement.BackgroundImage
Click the … button and select your image.
To REMOVE this image you SHOULD be able to do the following:
click on the property BackgroundImage which should highlight the image-string completely.
click delete.
done.
What you HAVE to do is this:
click on the property BackgroundImage.
click delete.
BEFORE YOU LEAVE THIS PROPERTY you have to click the … box
Once the box opens you have to click "Cancel"
Right below this property is BackgroundImageLayout - set to "Center"
There's a dropdown arrow presumably to allow you to change the layout but nothing happens when you click it.
*Missing Property?*
Whatever image you place in this control it gets stretched and there doesn't appear to be any way to avoid this:
place an image.
run the winforms ap.
set the main form in normal mode (not maximized) and resize the height.
Your image will stretch, shrink...this is not a UI property that should be presumed. We should be able to set None, Tile, Center, Stretch or Zoom.
Still *LOVE* your products :)
Kindest regards,
Curtis Smith