Last Updated: 17 Jun 2019 14:19 by ADMIN
Release R2 2019 SP1
Hello Telerik, 

your control changed the format to Verdana when import rtf. But only in the first line. And only the first line is Arial. Is the first line with any other font formated, its all ok.

Here the code:

string rtfText = @"{\rtf1\ansi\ansicpg1252\deff0\deflang1031{\fonttbl{\f0\fnil\fcharset0 Arial;}{\f1\fnil\fcharset0 Tahoma;}{\f2\fnil\fcharset0 Times New Roman;}{\f3\fnil\fcharset0 Arial Unicode MS;}{\f4\fnil\fcharset0 Calibri;}}
{\colortbl ;\red0\green0\blue0;}
\viewkind4\uc1\pard\tx300\tx600\tx900\tx1200\tx1500\tx1800\tx2100\tx2400\tx2700\tx3000\tx3300\tx3600\tx3900\tx4200\tx4500\cf1\b\fs32 Arial\f1\par
\f2 Times New Roman\par
\f0 Arial\f2\par
\f3 Arial Unicode MS\par
\f4 Calibri\b0\f0\fs20\par
RtfFormatProvider rtf = new RtfFormatProvider();
this.radRichTextEditor1.Document = rtf.Import(rtfText);

this.richTextBox1.Rtf = rtfText;

In the screenshot you can see, left the standard .net rtf control and rigth the Telerik richtexteditor. 
The zip is the sample project.
Last Updated: 17 Jun 2019 14:15 by ADMIN
Release R2 2019 SP1
The data validation rule should have values for formula1 and formula2 elements, which define the start and end values for a range to validate between. When such values are missing, a NullReferenceException is thrown on import and the document cannot be imported. As a workaround, the document can be modified by deleting the AlternateContent attribute.
Last Updated: 17 Jun 2019 14:10 by ADMIN
Release R2 2019 SP1
Created by: Karsten
Comments: 3
Category: GanttView
Type: Bug Report


why is the datatype of the ChildMember/ParentMember item limited to Int32? This is a problem when displaying tasks or events from tables with string or UUID idents. It would be a more flexible control if the type could be any type. Should not be a big deal to change this or is it?

Thank you und kind regards


Last Updated: 17 Jun 2019 13:32 by ADMIN
Release R2 2019 SP1
Created by: JeffSM
Comments: 3
Category: FileDialogs
Type: Bug Report


Since 1998 I design about 1000 ActiveX, FileDialogs were one of them.


Your is cool.

But my end-user complain that when they select details view, the column DateTime is not clickable to sort the files.


Please, fix it, or show me how to do.





Last Updated: 17 Jun 2019 06:42 by ADMIN
Created by: Daniel
Comments: 1
Category: GridView
Type: Bug Report

Steps to reproduce:

  1. Click column header to sort.
  2. Click button which to export to Excel.
  3. The rows return to unsorted.
  4. Scroll down slightly and scroll back up and the sort is restored.

This happens after calling RunExport.

I attached a gif and a sample project.

Pending Review
Last Updated: 14 Jun 2019 11:39 by ADMIN

Use attached to reproduce. 


series.DataPoints.Add(new PieDataPoint(0.01, "Germany"));
series.DataPoints.Add(new PieDataPoint(0.01, "United States"));


Last Updated: 14 Jun 2019 06:47 by ADMIN

To reproduce:

- Open The popup

- Click on it, and then click on the form

- Repeat until the popup stays opened

Last Updated: 13 Jun 2019 11:09 by ADMIN
Maximizing the form cuts off the RadRibbonBar and decreases the content padding.
Last Updated: 12 Jun 2019 13:58 by ADMIN

Please refer to the attached gif file.

Let's take for instance demo application with its default document, with text "RadRichTextEditor for WinForms" at the beginning in font Calibri of size 28. Suppose the user wants to add A, then empty line, then C in single line, followed by the rest of the document, and to have these three new lines in Times New Roman in size 10.

If there is no empty line, but letter B in middle line, then user can set caret to document start, set the font and size, and type A<Return>B<Return>C<Return>. And it would look fine (and even then, if we set caret just after B and press Return the new paragraph will have spacing after set to 7.5 for no apparent reason).

If we want an empty line instead of B in the line, then there is no simple way to do it. Typing A<Return><Return>C<Return> would produce a huge gap between A and C (we still first set the caret, and font and size). One way to accomplish what we want is to select all new text, set font size to something other than 10, and then back to 10 (which is also weird to have to do).

Last Updated: 12 Jun 2019 12:41 by Mark

So, when I drop a RadStatusStrip on my radForm. In that object, I then add a RadWaitingBarElement. Then I change SPRING = TRUE and WAITINGSTYLE = "Dash", all in the properties window.  At design time, it looks good.  However, at run time, it reverts back to the default bar and just scrolls across the screen.  Did I find a bug? Do I need to change other properties of the RadWaitingBarElement?  Also, I noticed that when I change the WaitingIndicators in property page, those changes to take affect either. Very confusing and frustrating


 We are using Telerik version 2018.3.911.40

Pending Review
Last Updated: 12 Jun 2019 12:31 by ADMIN

Hello Guys,


Good Evening , As per your suggestions i make my custom treeview node with LiteVisualElements .

In That Node i have taken one StackLayoutElement and RoundRectShape assigned to it but still panel shows corners instead of round edges,

i tried with different properties and styles but not get succeed , so please help me out.

here i have attached image of my node and "stackLayoutElement" code too.

spnlControls = new StackLayoutElement();
            spnlControls.Orientation = Orientation.Horizontal;
            spnlControls.NotifyParentOnMouseInput = true;
            spnlControls.DrawFill = true;
            spnlControls.DrawBorder = true;
            spnlControls.Shape = new RoundRectShape(4);
            spnlControls.BackColor = Color.Transparent;
            spnlControls.BackColor2 = Color.Transparent;
            spnlControls.BackColor3 = Color.Transparent;
            spnlControls.BackColor4 = Color.Transparent;
            spnlControls.BorderGradientStyle = GradientStyles.Solid;
Last Updated: 12 Jun 2019 11:16 by ADMIN

Hi there 

I found this issue in RadTreeView filtering

I have a 2-level text structure programmatically created

after creation I use the command


This is the only event handled


Private Sub txtFilter_TextChanged(sender As Object, e As EventArgs) Handles txtFilter.TextChanged

        radtreeNavigazione.Filter = txtFilter.Text

End Sub

When I set a filter with at least 4 letters and then I select the text in the filter box and press "back", the app freezes with cpu working at 50 %. 


I use this workaround to solve

Private Sub txtFilter_TextChanged(sender As Object, e As EventArgs) Handles txtFilter.TextChanged

        radtreeNavigazione.Filter = txtFilter.Text

End Sub


I use this workaround

Private Sub txtFilter_TextChanged(sender As Object, e As EventArgs) Handles txtFilter.TextChanged


      radtreeNavigazione.Filter = txtFilter.Text


End Sub


In this way it works, but I wanted to report the issue.

Thank you in advance for your attention


Last Updated: 12 Jun 2019 08:31 by ADMIN
Last Updated: 12 Jun 2019 08:18 by ADMIN
Release R2 2019 SP1
To reproduce:
- Use the attached project.
- Resize the panel to the left.
- You will notice that the borders are cut off.

Second scenario: refer to the
RadCollapsiblePanel1.ExpandDirection = Telerik.WinControls.UI.RadDirection.Right
RadSplitContainer1.SplitPanels("SplitPanel2").SizeInfo.SizeMode = Telerik.WinControls.UI.Docking.SplitPanelSizeMode.Absolute
RadSplitContainer1.SplitPanels("SplitPanel2").SizeInfo.AbsoluteSize = New System.Drawing.Size(637, 522)

Workaround: manually update the collapsible panel`s size in the SplitterMoved event
public WorkCenterScheduleAndStatusControl()

    this.radSplitContainer1.SplitterMoved += RadSplitContainer1_SplitterMoved;

private void RadSplitContainer1_SplitterMoved(object sender, SplitterEventArgs e)
    this.radCollapsiblePanel1.Size = new Size(this.radCollapsiblePanel1.Size.Width, this.radCollapsiblePanel1.Size.Height - 1);
    this.radCollapsiblePanel1.Size = new Size(this.radCollapsiblePanel1.Width, this.radCollapsiblePanel1.Size.Height + 1);

Last Updated: 12 Jun 2019 08:17 by ADMIN
Release R2 2019 SP1
To reproduce:
- Add to collapsible panels to a form.
- Dock the first to the top and set the Dock property of the second to Fill.
- Set the ExpandDirection of the second to Up.
- Start the application and collapse and then expand the second panel.
- You will notice that the header button is no longer visible.

void radCollapsiblePanel1_Expanded(object sender, EventArgs e)
Last Updated: 12 Jun 2019 06:49 by ADMIN

To reproduce:

set the clustering and add some pins upon a button click.


Refresh with the following method:

Under Review
Last Updated: 12 Jun 2019 06:15 by ADMIN
Created by: avani
Comments: 1
Category: TreeView
Type: Bug Report

Hi All,


I have made User control for custom node, in this user control i have used following controls

1 RadLabel (no of control - 3)

2 RadPanel (no of control -1)

3 PictureBox (no of Control - 4 )

4 TableLayoutPanel (no of control -3)

Means i have used total 11 controls within my user control.

Height of usercontrol = 146

Width of Usercontrol = 595


I have taken RadTreeView and above UserControl added as Node,following properties of treeview is set

this.radTreeView1.DataSource = Staff.GetStaff();
            this.radTreeView1.ParentMember = "ParentID";
            this.radTreeView1.ChildMember = "ID";
            this.radTreeView1.DisplayMember = "Department";
            this.radTreeView1.CreateNodeElement += this.OnCreateNodeElement;

this.radTreeView1.TreeViewElement.AutoSizeItems = true;
            this.radTreeView1.ShowRootLines = false;
            this.radTreeView1.FullRowSelect = false;
            this.radTreeView1.ShowLines = true;
            this.radTreeView1.LineStyle = TreeLineStyle.Solid;
            this.radTreeView1.LineColor = Color.FromArgb(110, 153, 210);
            this.radTreeView1.TreeIndent = 50;



But when i run the code it shows like this means my control is not displaying and the property "AutoSizeItems" is not working.


hope for quick reply

Last Updated: 11 Jun 2019 07:37 by ADMIN
Release R2 2019 SP1
Workaround: use RadTextBoxControl.
Last Updated: 07 Jun 2019 11:48 by ADMIN
Created by: Hemesh
Comments: 1
Category: UI for WinForms
Type: Bug Report


I have already used your ItemFormatting event in my code and implemented it the same way you have provided.

In my code, i have created 7-8 messages and fixed the first msg's timestamp to "6/6/2019 11:53:08 AM" and the remaining messages with timestamp of 2 minutes more than this time. Whenever the event is triggered i wrote a code which compares the timestamp of my message with this timestamp "6/6/2019 11:53:08 AM". Conditionally only the first message falls in this condition and i paint it red, which works well for first time (On load) and then when i scroll my chat, the event unnecessarily paints the remaining msgs too, which should not happen.

I am attaching my .cs file with designer please refer to it, and resolve this asap. Looking forward to your response.


Last Updated: 07 Jun 2019 11:32 by ADMIN
Created by: BERND
Comments: 0
Category: UI for WinForms
Type: Bug Report

To reproduce: 

radCheckBox1.Font = new Font("Segoe UI", 20, FontStyle.Regular);

radCheckBox2.ThemeName = "Fluent";
radCheckBox2.Font = new Font("Segoe UI", 20, FontStyle.Regular);


radCheckBox2.ButtonElement.Font = new Font("Segoe UI", 20, FontStyle.Regular);


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