To reproduce: please refer to the attached sample project and gif file

Workaround:

            GridViewSpreadExport spreadExporter = new GridViewSpreadExport(this.radGridView1);
            spreadExporter.ExportFormat = SpreadExportFormat.Pdf;
            spreadExporter.ExportVisualSettings = true;
            SpreadExportRenderer exportRenderer = new SpreadExportRenderer();
            spreadExporter.RunExport(exportFile, exportRenderer);
            Process.Start(exportFile);

Please run the attached sample project and follow the steps illustrated in the attached gif file. The following exception occurs:

System.ArgumentException
  HResult=0x80070057
  Message=Rectangle '{X=0,Y=35,Width=156.3333,Height=0}' cannot have a width or height equal to 0.
  Source=System.Drawing
  StackTrace:
   at System.Drawing.Drawing2D.LinearGradientBrush..ctor(RectangleF rect, Color color1, Color color2, Single angle, Boolean isAngleScaleable)
   at System.Drawing.Drawing2D.LinearGradientBrush..ctor(RectangleF rect, Color color1, Color color2, Single angle)
   at Telerik.WinControls.UI.Gauges.LinearGaugeBrushFactory.CreateBrush(GaugeVisualElement owner, GaugeBrushType type)
   at Telerik.WinControls.UI.Gauges.LinearGaugeBar.Paint(Graphics graphics, Rectangle boundingRectangle)
   at Telerik.WinControls.UI.Gauges.LinearGaugeBar.PaintElement(IGraphics graphics, Single angle, SizeF scale)
   at Telerik.WinControls.RadElement.DoOwnPaint(IGraphics graphics, Single angle, SizeF scale)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadItem.PaintOverride(IGraphics screenRadGraphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadItem.PaintOverride(IGraphics screenRadGraphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadItem.PaintOverride(IGraphics screenRadGraphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadControl.OnPaint(PaintEventArgs e)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at Telerik.WinControls.RadControl.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

IMPORTANT: If both colors are changed at design time and you set the Value of RadLinearGauge to 0, this will provoke a similar error leading Visual Studio to crash.

Workaround: specify a minimum width/height for the gauge:

this.radLinearGauge1.MinimumSize = new Size(1, (int)this.linearGaugeBar1.Offset+1);

 

 

The BackColor is not exported when a custom theme is used along with conditional formatting and BackColor is set to transparent in the custo theme.

The DateTime Value is lost when using a custom format "dd.MM.yyyy" in RadgridView and custom provider is used. 

Workaround: 
Set the MaxDate in the custom provider:
Public Class MyMaskDateTimeProvider
  Inherits MaskDateTimeProvider

  Public Sub New(mask As String, culture As CultureInfo, owner As RadMaskedEditBoxElement)
        MyBase.New(mask, culture, owner)
        Me.MaxDate = DateTime.MaxValue
    End Sub

   
End Class

When deleting all content (e.g. Select All [CTRL+A] + Delete [Del]) in the document, it would be convenient for the user to preserve all formatting (local span formatting + local paragraph formatting + style) applied on the last paragraph. 

This will ensure that the user will continue edit the document with last current font, font family, etc.

If this operation is applied on an empty document, though, the styling of the single paragraph should be reset to the defaults for the document.

See attached to reproduce. 

Workaround: set it to the element:

 radToggleSwitch1.ToggleSwitchElement.Font = new Font("Segoe Script", 18, FontStyle.Regular);

Please refer to the attached sample project and follow the steps illustrated in the attached gif file.

Workaround: initialize a new RadDateTimePicker every time you toggle the checkbox:

    Dim location As Point
    Sub New()

        InitializeComponent()
        location = Me.RadDateTimePicker1.Location 
    End Sub
    Private Sub RadCheckBox1_ToggleStateChanged(sender As Object, args As Telerik.WinControls.UI.StateChangedEventArgs) Handles RadCheckBox1.ToggleStateChanged
        Me.Controls.Remove(Me.RadDateTimePicker1)

        Me.RadDateTimePicker1 = New RadDateTimePicker()
        Me.RadDateTimePicker1.Parent = Me
        Me.RadDateTimePicker1.Location = location
        With RadDateTimePicker1
            Dim i_calendar As RadDateTimePickerCalendar = TryCast(.DateTimePickerElement.GetCurrentBehavior(), RadDateTimePickerCalendar)
            If i_calendar IsNot Nothing Then
                If args.ToggleState = Telerik.WinControls.Enumerations.ToggleState.On Then

                    i_calendar.ShowTimePicker = True
                    i_calendar.DropDownMinSize = New Size(450, 350)
                    i_calendar.DropDownMaxSize = New Size(450, 350)
                    .DateTimePickerElement.CalendarSize = New Size(450, 350)
                    .CustomFormat = "dd.MM.yyyy HH:mm" 
                Else
                    i_calendar.ShowTimePicker = False

                    i_calendar.DropDownMinSize = New Size(250, 250)
                    i_calendar.DropDownMaxSize = New Size(250, 250)
                    .DateTimePickerElement.CalendarSize = New Size(250, 250)
                    .CustomFormat = "dd.MM.yyyy"
                End If 
            End If
        End With 
    End Sub

To reproduce:

  doc.Pages[0].CropBox = new Rect(150, 150, doc.Pages[0].Size.Width - 30, doc.Pages[0].Size.Height - 30);

Workaround: 

Workarond:
radMultiColumnComboBox1.AutoSize = false;
radMultiColumnComboBox1.MinimumSize = new Size(0, 22);

Please use the following code snippet to setup the Gantt view:

Sub New()

                 

        InitializeComponent()

        Dim dt As New DataTable
        dt.Columns.Add("ID", GetType(Integer))
        dt.Columns.Add("Group_ID", GetType(Integer))
        dt.Columns.Add("Title", GetType(String))
        dt.Columns.Add("Start", GetType(DateTime))
        dt.Columns.Add("End", GetType(DateTime))

        dt.Rows.Add(-999, 0, "Root", New DateTime(2019, 8, 21), New DateTime(2019, 8, 30))
        dt.Rows.Add(6, -999, "Item 1", New DateTime(2019, 8, 21), New DateTime(2019, 8, 23))
        dt.Rows.Add(7, -999, "Item 2", New DateTime(2019, 8, 26), New DateTime(2019, 8, 30))
        dt.Rows.Add(1000, 6, "Sub1.1", New DateTime(2019, 8, 21), New DateTime(2019, 8, 22))
        dt.Rows.Add(1001, 6, "Sub1.2", New DateTime(2019, 8, 22), New DateTime(2019, 8, 23))
        dt.Rows.Add(1002, 6, "Sub1.3", New DateTime(2019, 8, 23), New DateTime(2019, 8, 23))
        dt.Rows.Add(1003, 7, "Sub2.1", New DateTime(2019, 8, 26), New DateTime(2019, 8, 29))



        Me.RadGanttView1.DataSource = dt
        Me.RadGanttView1.ChildMember = "ID"
        Me.RadGanttView1.ParentMember = "Group_ID"
        Me.RadGanttView1.TitleMember = "Title"
        Me.RadGanttView1.StartMember = "Start"
        Me.RadGanttView1.EndMember = "End"

        Me.RadGanttView1.Columns.Add("ID")
        Me.RadGanttView1.Columns.Add("Title")
        Me.RadGanttView1.GanttViewElement.GraphicalViewElement.TimelineStart = New DateTime(2019, 8, 20)
    End Sub 

However, if you switch the order of adding the rows, not all items will be visible in RadGanttView:

dt.Rows.Add(1000, 6, "Sub1.1", New DateTime(2019, 8, 21), New DateTime(2019, 8, 22))
        dt.Rows.Add(1001, 6, "Sub1.2", New DateTime(2019, 8, 22), New DateTime(2019, 8, 23))
        dt.Rows.Add(1002, 6, "Sub1.3", New DateTime(2019, 8, 23), New DateTime(2019, 8, 23))
        dt.Rows.Add(1003, 7, "Sub2.1", New DateTime(2019, 8, 26), New DateTime(2019, 8, 29))

        dt.Rows.Add(-999, 0, "Root", New DateTime(2019, 8, 21), New DateTime(2019, 8, 30))
        dt.Rows.Add(6, -999, "Item 1", New DateTime(2019, 8, 21), New DateTime(2019, 8, 23))
        dt.Rows.Add(7, -999, "Item 2", New DateTime(2019, 8, 26), New DateTime(2019, 8, 30))

Use attached to reproduce.

Workaround:

Hello,

I'm contacting to you regarding the RadDiagram in WinForms. Currently I have an issue with the layout by using the AStartRouter (see attached picture). Please find below the code used to setup the router:

this.diagram.RoutingService.Router = new Telerik.Windows.Diagrams.Core.AStarRouter(this.diagram.DiagramElement) 
{ 
AvoidShapes = true,
WallOptimization = true
};
this.diagram.RoutingService.AutoUpdate = true;
this.diagram.RouteConnections = true;

Thanks for your help.

Regards

Hello,

I use radbreadcrumb as a group path explorer in my software. 

I associate it with a treeview. Please see the attache photos.

When I select a treeviewitem which has too much parent levels, the radbreadcrumb can not display the path completely.

I've tried autoscrollmargin and autoscrollminsize. No luck. Because my radbreadcrumb is in a splitcontainerpanel, the display size is changeable.

I expect a custom function can act like Windows Explorer (see the last attach photo). When there is no enough display space, only the last levels are shown.

 

PS. I've integrated the telerik solution from this post. And it works great. 

https://www.telerik.com/forums/getting-breadcrumb-to-act-like-windows-explorer-breadcrumb

 

Thank you by advance.

Kun

 

Please refer to the attached sample project and follow the steps from the gif file. The scrollbar needs to be in the middle.

Note: the issue can be reproduced without action list as well.

 The scroll in the SuggestedActionsElement cannot be made visible, one can scroll only with the mouse. Introduce a property so there is an indication that additional items are available.

In addition, the CreateChatElement in RadChat class should be made virtual. 

When trying to import a document containing bookmark and BookmarkRangeEnd is after the last paragraph, a StackOverflowException is thrown in IntervalNode while trying to rebuild the document cache. (RadDocumentChildrenCache.RebuildTree()).

The same could be observed if the bookmark end is last in the header/footer, between table cells in the RadDocument body, or when all paragraphs after the bookmark range end are hidden (with vanish property).

Workaround: Detect the problematic annotations and remove them:
foreach (var rangeStart in document.EnumerateChildrenOfType<AnnotationRangeStart>())
{
    if (rangeStart.End == null || rangeStart.End.Parent == null || rangeStart.End.Parent.Parent == null)
    {
        //MessageBox.Show("This indicates a problem.");
        rangeStart.Parent.Children.Remove(rangeStart);
    }
}

Note: Until 2017 R2 SP1 release StackOverflowException is thrown, after this release an ArgumentException should be thrown.

Hi,

 

I am working with the RadGridView in my c# winform application. I am using the custom font ("Font Awesome 5 Free Solid") for the RadGridView using the "CellFormatting" event to view the icons along with the text. Here i am able to see the proper icons with text but when i open the filter menu to filter out the rows, i am unable to see the icons (icons shown as the box) as in filterbox we don't have any custom font. 

I tried to working out the properties of the RadTreeNodeCollection but here we dont have any Custom font property for the same. 

i want to show the text as it is in the filterbox along with the text and the icon.

so can you suggest what i can do to view the icons in the filterbox?

Check the attachment for reference.

 

To reproduce: run the attached project and toggle the checkbox in the header cell of the child template. 

Workaround: use a custom GridCheckBoxHeaderCellElement


    public partial class RadForm1 : Telerik.WinControls.UI.RadForm
    {
        public RadForm1()
        {
            InitializeComponent();

            this.radGridView1.CreateCell += radGridView1_CreateCell;

            DataTable dt = new DataTable();
            dt.Columns.Add("CategoryId", typeof(int));
            dt.Columns.Add("CategoryName", typeof(string));
            dt.Columns.Add("ParentCategoryId", typeof(int));

            dt.Rows.Add(1, "Category1", 0);
            dt.Rows.Add(2, "Category2", 0);
            dt.Rows.Add(3, "Category3", 0);

            Random rand = new Random();
            for (int i = 4; i < 20; i++)
            {
                dt.Rows.Add(i, "Category" + i, rand.Next(1, 4));
            }
            this.radGridView1.Relations.AddSelfReference(this.radGridView1.MasterTemplate, "CategoryId", "ParentCategoryId");
            this.radGridView1.DataSource = dt;
            this.radGridView1.AutoSizeColumnsMode = Telerik.WinControls.UI.GridViewAutoSizeColumnsMode.Fill;

            GridViewTemplate childTemplate = CreateChildTemplate();
            GridViewRelation relation = new GridViewRelation(
                this.radGridView1.MasterTemplate,
                childTemplate);
            relation.ChildColumnNames.Add("CategoryId");
            relation.ParentColumnNames.Add("CategoryId");
            this.radGridView1.Relations.Add(relation);
        }

        private void radGridView1_CreateCell(object sender, GridViewCreateCellEventArgs e)
        {
            if (e.CellType == typeof(GridCheckBoxHeaderCellElement))
            {
                e.CellElement = new CustomGridCheckBoxHeaderCellElement(e.Column, e.Row);
            }
        }

        private GridViewTemplate CreateChildTemplate()
        {
            GridViewTemplate childTemplate = new GridViewTemplate();
            childTemplate.AutoGenerateColumns = false;
            this.radGridView1.Templates.Add(childTemplate);

            GridViewDecimalColumn decColumn = new GridViewDecimalColumn
            {
                Name = "CategoryId",
                HeaderText = "CategoryId Id",
                FieldName = "CategoryId",
                IsVisible = false,
                MinWidth = 100
            };
            childTemplate.Columns.Add(decColumn);

            GridViewTextBoxColumn tbxColumn = new GridViewTextBoxColumn
            {
                Name = "RightName",
                HeaderText = "Right Name",
                FieldName = "RGT_NAME",
                ReadOnly = true,
                MinWidth = 100
            };
            childTemplate.Columns.Add(tbxColumn);

            GridViewCheckBoxColumn chkxColumn = new GridViewCheckBoxColumn
            {
                Name = "Checkbox",
                EnableHeaderCheckBox = true,
                FieldName = "HasAccess",
            };
            childTemplate.Columns.Add(chkxColumn);
            childTemplate.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
            return childTemplate;
        }

        public class CustomGridCheckBoxHeaderCellElement : GridCheckBoxHeaderCellElement
        {
            public CustomGridCheckBoxHeaderCellElement(GridViewColumn column, GridRowElement row) : base(column, row)
            {
            }

            public bool SuspendProcessingToggleStateChanged
            {
                get
                {
                    FieldInfo fi = typeof(GridCheckBoxHeaderCellElement).GetField("suspendProcessingToggleStateChanged", BindingFlags.NonPublic | BindingFlags.Instance);
                    return (bool)fi.GetValue(this);
                }
                set
                {
                    FieldInfo fi = typeof(GridCheckBoxHeaderCellElement).GetField("suspendProcessingToggleStateChanged", BindingFlags.NonPublic | BindingFlags.Instance);
                    fi.SetValue(this, value);
                }
            }

            public bool ShouldCheckDataRows
            {
                get
                {
                    FieldInfo fi = typeof(GridCheckBoxHeaderCellElement).GetField("shouldCheckDataRows", BindingFlags.NonPublic | BindingFlags.Instance);
                    return (bool)fi.GetValue(this);
                }
                set
                {
                    FieldInfo fi = typeof(GridCheckBoxHeaderCellElement).GetField("shouldCheckDataRows", BindingFlags.NonPublic | BindingFlags.Instance);
                    fi.SetValue(this, value);
                }
            }

            protected override void checkbox_ToggleStateChanged(object sender, StateChangedEventArgs args)
            {
                if (SuspendProcessingToggleStateChanged)
                {
                    return;
                }

                if (this.ViewTemplate != null && !this.ViewTemplate.IsSelfReference && !this.MasterTemplate.IsSelfReference)
                {
                    this.MasterTemplate.BeginUpdate();
                }
                else
                {
                    this.TableElement.BeginUpdate();
                }

                object valueState = DBNull.Value;

                if (args.ToggleState == ToggleState.On)
                {
                    valueState = true;
                }
                else if (args.ToggleState == ToggleState.Off)
                {
                    valueState = false;
                }
                else if (args.ToggleState == ToggleState.Indeterminate)
                {
                    valueState = null;
                }

                RaiseToggleStateEvent();

                if (!ShouldCheckDataRows)
                {
                    if (this.ViewTemplate != null && !this.ViewTemplate.IsSelfReference && !this.MasterTemplate.IsSelfReference)
                    {
                        this.MasterTemplate.EndUpdate(true, new DataViewChangedEventArgs(ViewChangedAction.DataChanged));
                    }

                    return;
                }

                this.GridViewElement.EditorManager.EndEdit();

                this.TableElement.BeginUpdate();
                this.MasterTemplate.MasterViewInfo.TableSearchRow.SuspendSearch();
                List<GridViewRowInfo> list = GetRowsToIterateOver();
                foreach (GridViewRowInfo rowInfo in list)
                {
                    GridViewGroupRowInfo groupRow = rowInfo as GridViewGroupRowInfo;

                    if (groupRow != null)
                    {
                        this.CheckAllCheckBoxInChildRows(groupRow, valueState);
                    }
                    else
                    {
                        rowInfo.Cells[this.ColumnIndex].Value = valueState;
                    }
                }
                this.MasterTemplate.MasterViewInfo.TableSearchRow.ResumeSearch();
                this.TableElement.EndUpdate(false);

                if (this.ViewTemplate != null && !this.ViewTemplate.IsSelfReference && !this.MasterTemplate.IsSelfReference)
                {
                    this.MasterTemplate.EndUpdate(true, new DataViewChangedEventArgs(ViewChangedAction.DataChanged));
                }
                else
                {
                    this.TableElement.EndUpdate(false);
                }

                this.TableElement.Update(GridUINotifyAction.DataChanged);
            }

            private void CheckAllCheckBoxInChildRows(GridViewGroupRowInfo row, object state)
            {
                List<GridViewRowInfo> list = new List<GridViewRowInfo>();

                foreach (GridViewRowInfo rowInfo in row.ChildRows)
                {
                    list.Add(rowInfo);
                }

                foreach (GridViewRowInfo rowInfo in list)
                {
                    GridViewGroupRowInfo groupInfo = rowInfo as GridViewGroupRowInfo;
                    if (groupInfo != null)
                    {
                        this.CheckAllCheckBoxInChildRows(groupInfo, state);
                    }
                    else
                    {
                        rowInfo.Cells[this.ColumnIndex].Value = state;
                    }
                }
            }

            private List<GridViewRowInfo> GetRowsToIterateOver()
            {
                if (this.ViewTemplate != null && this.ViewTemplate.IsSelfReference)
                {
                    PrintGridTraverser traverser = new PrintGridTraverser(this.ViewInfo);
                    List<GridViewRowInfo> result = new List<GridViewRowInfo>();

                    while (traverser.MoveNext())
                    {
                        if (traverser.Current is GridViewDataRowInfo)
                        {
                            result.Add(traverser.Current);
                        }
                    }

                    return result;
                }

                return new List<GridViewRowInfo>(this.ViewInfo.Rows);
            }
        }
    }

Dear Admins.

I'm developing an application which have Parent (MDI) and some child forms.

Using Telerik UI for WinForms R2 2019 SP1.

Code for Opening the Form.

 

But Still i can see the ControlBox and Minimize and Maximize Buttons on the Top right Corner. 

Image Attached.

When i Use the Same Coding and Properties using Standard Windows Forms. It behave like as required.

Please help what is wrong with this.