Last Updated: 28 May 2022 00:58 by ADMIN
Release R2 2022 SP1

This is an odd one - see attached GIF.

If I attempt to select characters with the mouse (left-click + drag), at the beginning of any line of text, it won't highlight (90+% of the time).  That's if I'm dragging from left-to-right.

If I select the same text from right-to-left, it works every time.


Last Updated: 27 May 2022 14:15 by ADMIN
Scheduled for R2 2022 SP1
The decimal separator is removed when exporting with German culture on Windows Server 2012
Last Updated: 27 May 2022 13:53 by ADMIN
Release R2 2022 SP1
In this case, when the RadPivotGrid is connected to a chart and we call the UpdateUI() method at an early stage, a NullReferenceException exception will appear.
Last Updated: 27 May 2022 12:28 by ADMIN
Release R2 2022 SP1

Use a custom font set like this: 

this.radSyntaxEditor1.SyntaxEditorElement.EditorFontFamily = new Telerik.WinControls.SyntaxEditor.UI.FontFamily("Cascadia Code");
this.radSyntaxEditor1.SyntaxEditorElement.EditorFontSize = 13;

Then load a large document, at least 10K lines so that the clipping is visible.

Last Updated: 27 May 2022 10:43 by Dinko

Additional borders appear in AgendaView when the Date column is sorted. This behavior is observed in the following themes:

  • VisualStudio2012Light
  • Office2019Light
  • Office2019Gray
  • Office2019Dark
  • Office2013Dark (missing border)
  • Office2013Light (missing border)
  • TelerikMetro (missing border)
  • TelerikMetroBlue (missing border)
  • TelerikMetroTouch (missing border)
  • Office2010Black (missing border)
  • Office2010Silver (missing border)
  • Office2010Blue (missing border)
  • ControlDefault (missing border)
  • Breeze (missing border)
  • HighContrastBlack (missing border)
  • Office2007 (missing border)


Last Updated: 26 May 2022 12:10 by Dennis
The wrap text feature does not work as expected when not in edit mode
Need More Info
Last Updated: 26 May 2022 06:20 by ADMIN
It would be nice if the grid column chooser would support grouping of columns similar to the jquery grid
Last Updated: 25 May 2022 08:48 by ADMIN
Release R2 2022 SP1
Created by: Roy
Comments: 2
Category: WaitingBar
Type: Bug Report

Use the attached sample project and click the button:

   at Telerik.WinControls.TelerikPaintHelper.GenerateSnapShotWithBitBlt(Control control)
   at Telerik.WinControls.UI.RadWaitingBar.AddBackgroundImageToAssociatedControlCoverPanel()
   at Telerik.WinControls.UI.RadWaitingBar.ShowCover()
   at Telerik.WinControls.UI.RadWaitingBar.StartWaiting()
   at TelerikWinFormsApp1.RadForm1.radButton1_Click(Object sender, EventArgs e) in C:\Projects\1564934_telerikwinformsapp1\TelerikWinFormsApp1\RadForm1.cs:line 31


        public class CustomWaitingBar : RadWaitingBar
            protected override void AddBackgroundImageToAssociatedControlCoverPanel()
                Size associatedControlSize = this.AssociatedControl.Size;
                if (associatedControlSize.Width <= 0 || associatedControlSize.Height <= 0)

                Bitmap controlImage = new Bitmap(associatedControlSize.Width, associatedControlSize.Height);
                this.AssociatedControl.DrawToBitmap(controlImage, new Rectangle(Point.Empty, associatedControlSize));
                SolidBrush semiTransBrush = new SolidBrush(this.AssociatedControlCoverPanel.BackColor); // Color.FromArgb(128, 255, 255, 255) Default color
                Graphics g = Graphics.FromImage(controlImage);
                g.FillRectangle(semiTransBrush, new Rectangle(Point.Empty, controlImage.Size));
                this.AssociatedControlCoverPanel.BackgroundImage = controlImage;

            public override string ThemeClassName
                    return typeof(RadWaitingBar).FullName;


Last Updated: 24 May 2022 13:50 by Dinko
PeekPopup does not appear when the PageViewPage hovered for the first time. You will need to hover over another PageViewPage and then go back to the first one. Afterward, it is working as expected.
Last Updated: 23 May 2022 13:20 by ADMIN
When DetailsView is set from the drop-down, the Date Modified column is not updated. For example, if the dialog is opened at a specific place and we modified a file (edit, replace) from an external place (source), Date Modified does not reflect the changed date.
Last Updated: 20 May 2022 13:59 by ADMIN
Release R2 2022 SP1
Implement functionality to rotate the content of a cell.
Last Updated: 20 May 2022 13:35 by ADMIN
Release R2 2022 SP1

Run the attached project and click List then Export.




    Private Sub RadButton2_Click(sender As Object, e As EventArgs) Handles RadButton2.Click
        Dim spreadExporter As GridViewSpreadExport = New GridViewSpreadExport(gvAssetSchedule)
        AddHandler spreadExporter.CellFormatting, AddressOf spreadExporter_CellFormatting
        Dim exportRenderer As New SpreadExportRenderer()
        spreadExporter.ExportVisualSettings = True
        Dim filename = "..\..\export" & DateTime.Now.ToLongTimeString().Replace(":", "_") & ".xlsx"
        spreadExporter.RunExport(filename, exportRenderer)
    End Sub

    Private Sub spreadExporter_CellFormatting(sender As Object, e As Telerik.WinControls.Export.CellFormattingEventArgs)
        If e.GridCellInfo Is Nothing Then
            Dim selection As CellSelection = e.CellSelection
            Dim range As CellRange = selection.CellRanges(0)
            Dim val = selection.Worksheet.Cells(range.FromIndex.RowIndex, range.FromIndex.ColumnIndex).GetValue()
            Dim format As New CellValueFormat("@")
            selection.Worksheet.Cells(range.FromIndex.RowIndex, range.FromIndex.ColumnIndex).SetFormat(format)
            Dim dt As New DateTime(1900, 1, 1)
            Dim parsedDays = 0
            If Integer.TryParse(val.Value.RawValue, parsedDays) Then
                dt = dt.AddDays(parsedDays)
                selection.Worksheet.Cells(range.FromIndex.RowIndex, range.FromIndex.ColumnIndex).SetValue(dt.Year & "-" & MonthName(dt.Month))
            End If
        End If
    End Sub

Last Updated: 19 May 2022 14:24 by ADMIN
Release R2 2022 SP1
Created by: Stoyan
Comments: 0
Category: UI for WinForms
Type: Bug Report

The solution in this KB article is used: 

Follow the steps:

1. Set your main monitor to be with higher than 100% DPI scaling (e.g. 175%, 200%)

2. Set the secondary monitor with 100% DPI scaling.

3. Run the exe from the project on the secondary monitor with 100% DPI scaling. You will notice that all controls that host the standard MS TextBox are incorrectly scaled:


Last Updated: 19 May 2022 14:24 by ADMIN
Release R2 2022 SP1

This scenario is reproducible when the MCCB dropdown has 1 item. To disable the selection of the row we can set the EditorControl.CurrentRow to null. However, when the dropdown is open the Text property is set to the first row.

Last Updated: 19 May 2022 14:24 by ADMIN
Release R2 2022 SP1

Setting the SyntaxEditorElement.HorizontalScrollBar.Visibility property to Collapsed indeed hides the horizontal scrollbar but it is still measured and arranged and overlaps the view if you shrink the view:

Last Updated: 19 May 2022 14:24 by ADMIN
Release R2 2022 SP1
When saving and loading the RadDock layout from XML, the position of the tab is not preserved correctly.
Last Updated: 18 May 2022 07:03 by Timo

The default browser paragraph spacing is not preserved during HTML import-export. 


StyleDefinition normalStyle = this.radRichTextEditor1.Document.StyleRepository[RadDocumentDefaultStyles.NormalWebStyleName];
normalStyle.ParagraphProperties.SpacingAfter = 20;
normalStyle.ParagraphProperties.SpacingBefore = 20;

Last Updated: 18 May 2022 06:58 by Al

It can be scrolled at design time in .NET Framework, but not in .NET 6:

Last Updated: 18 May 2022 06:37 by Jane

Steps to reproduce:

1. Run the sample project and select a row inside the grid

2. Press Ctrl+B

The following error occur:

Workaround: set the EnableFastScrolling property to false.

Last Updated: 17 May 2022 11:17 by ADMIN

When exporting a RadFixedDocument, which contains a signature added with PdfProcessing a NotSupportedException is thrown: 'Stream does not support reading.'

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