Last Updated: 16 Aug 2021 11:00 by ADMIN
Rows auto-sizing is available for ColumnGroupsViewDefinition. Hence, it would be nice to have this functionality for the HtmlViewDefinition as well.
Last Updated: 03 Aug 2021 07:31 by ADMIN
Created by: Iprel
Comments: 0
Category: UI for WinForms
Type: Bug Report

Follow the steps:

1. Please enter "0.12345"

2. Using the left arrow navigate after "1" and hit Backspace to delete "1"

3. Enter "6". It would be inserted in the wrong position

Last Updated: 07 Jul 2021 10:58 by ADMIN
Created by: Ketan
Comments: 2
Category: Map
Type: Bug Report


Please refer. below code...

        void ShowInfoUI()
            var padding = new Padding(0);
            var font = new Font(Font.FontFamily, 8.0f);

            if (T.InfoLayer.IsVisible = cbShowInfo.Checked)
                var overlays = T.PinsLayer.Overlays;

                for (int i = 0; i < overlays.Count; i++)
                    var callout = new MapCallout(overlays[i]) { Font = font, Padding = padding, Text = "1234567", Distance = 5 };


There are 2 layers, InfoLayer (MapCallout) and PinsLayer (MapPins). cbShowInfo controls if MapCallout tobe shown.

If the 'Text' length is less than 8 wrapping happens, and not otherwise. Usually, If Text length is more then wrapping should happen.


Last Updated: 10 Jun 2021 13:29 by ADMIN


I have C# Winforms application targeting .Net 5.

I am trying to use the Raddock with the Visual Studio 2012 dark theme, adding to a radribbonform

There are several tool windows that i have tabbed using the Advance layout designer. When i try to select a tab in the main Visual studio designer i am unable to change it from the one i selected in the Advanced layout designer.

I am also unable to resize the windows using the split container while in standard design view.

I have attached a word document to try and explain.

My VS version is:


Microsoft Visual Studio Professional 2019

Version 16.9.1



Last Updated: 12 May 2021 12:28 by ADMIN
Steps to reproduce:

1. Create a form
2. Set its Localization property to true.
3. Add RadGridView to the form
4. Add 3 GridViewTextBoxColumn instances at design-time
5. Change the Language of the form to Polish
6. The variable names of the columns are changed (gridViewTextBoxColumn1 to gridViewTextBoxColumn4, gridViewTextBoxColumn2 to gridViewTextBoxColumn5, gridViewTextBoxColumn3 to gridViewTextBoxColumn6)
Last Updated: 10 Mar 2021 10:22 by ADMIN

Currently, when a Chinese input method is activated (e.g. Microsoft Pinyin), typing by the VirtualKeyboard can only type in English characters, which looks like the key-press message just bypasses the IME and reach the textbox directly. Both first-party IMEs provided by Microsoft and third-party IMEs were tested. 


I guess Japanese and Korean IMEs are affected as well, as they all need an IME program to convert codes to characters. Supporting the East Asian IMEs may help greatly for touch-screen apps running in these cultures. Otherwise, the users can type in English only.


How to add a Chinese IME:

1. Add Chinese (China) language in Settings -> Time and Language -> Language.

2. In the Options of the Chinese language in the language list, click Add Keyboard and select Microsoft Pinyin.



Last Updated: 17 Feb 2021 08:09 by ADMIN
Created by: Pierre
Comments: 0
Category: UI for WinForms
Type: Feature Request
Add support in HTML like text formatting for subscript and superscript text.
Last Updated: 30 Nov 2020 14:53 by ADMIN
Created by: Mihajlo
Comments: 3
Category: ImageEditor
Type: Bug Report
Create a new blank Telerik project. Add RadImageEditor control to the form. Start the app. Open some jpg image. Try to save this image in various formats. No matter what format you select, from BMP to TIFF, the image will be saved in PNG format. The file extension will be .bmp or .tiff, but the file contents is PNG.
Last Updated: 26 Aug 2020 14:01 by ADMIN
Created by: Matt
Comments: 7
Category: UI for WinForms
Type: Bug Report


I am trialing version 2020.2.504.40 from 2017.1.221.40 and have found an issue converting my current project. Before upgrading I need to get this resolved if you could help please?

If you:

  • Add a Telerik form to a new WinForms project
  • Set FormBorderStyle = Windows.Forms.FormBorderStyle.None
  • Set WindowState = FormWindowState.Maximized
  • Show the height and width of the form, i.e. in Me.Resize, put Me.Text = "Width: " & Me.Width & ", Height: " & Me.Height

I have a monitor of 1920x1080. When the form is resized it shows a size of 1934x1094. I have tried setting Me.AllowTheming=False (no avail) and also tried in form Properties > FormBehaviour > AllowTheming=False (but to no avail).

The form size works as expected in 2017.1.221.40.

Kind regards,


Last Updated: 26 May 2020 07:56 by ADMIN

To reproduce: 

Add the rule from this article and observe the result: Data Validation

Last Updated: 25 May 2020 04:41 by ADMIN

An error occur when i used .Import method on large .pdf files (> 1000 ko) with an Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider object.


Message is:

"Impossible d'effectuer un cast d'un objet de type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfDictionary' en type 'Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfInt'." 

There is no bug for smaller pdf files. 


Thank you