Unplanned
Last Updated: 05 Mar 2026 10:13 by ADMIN
Created by: Mayank
Comments: 1
Category: Installer and VS Extensions
Type: Bug Report
0
No close option for notification pop-up for telerik extension, also the notification pop-up is not shown properly, it is like a glitch. Right half of the pop-up window is not visible.
Unplanned
Last Updated: 02 Mar 2026 09:58 by ADMIN

In the following scenario, the item's text in the drop-down list shows different text from the selected item.

When the document is open in a web browser :


When the document is open in the RadPdfViewer control.

Editor open and editor closed:



 

Unplanned
Last Updated: 27 Feb 2026 12:19 by ADMIN
NullReferenceException is thrown when loading a PDF file with editing controls generated from the PDF24 website.
Unplanned
Last Updated: 24 Feb 2026 11:32 by Ian
When placing a bookmark and a hyperlink in a structured document tag, clicking on the hyperlink will not move the caret (navigate) to the bookmark
Unplanned
Last Updated: 20 Feb 2026 08:33 by ADMIN
After upgrading to the latest version of Telerik, whenever I right-click the header row of the child grid in a hierarchy grid (to go to column chooser).
Unplanned
Last Updated: 17 Feb 2026 14:44 by ADMIN
Scheduled for 2026 Q2 (20.05.2026)
Created by: Fabio
Comments: 0
Category: Installer and VS Extensions
Type: Bug Report
2
Upgrade Wizard for WinForms does not support .NET 10 projects
Unplanned
Last Updated: 17 Feb 2026 09:17 by ADMIN
In this particular scenario, setting the EnableFiltering property to true will trigger the control to update its view. In some scenarios, an exception occurs when checking whether a column has a sort applied.
Unplanned
Last Updated: 13 Feb 2026 15:33 by ADMIN

In this specific scenario, we have a menu with 2 menu items: &File and &Open. The mnemonic sign is set to the F and O letters. In the form, we have a TextBox control which is currently focused. The next step is to press the Alt key while the TextBox is focused. Pressing some other letter, D for example, the letter will be typed in the TextBox. This letter does not exist as a mnemonic, and the RadMenu will ignore it. The RadMenu remains in active mnemonic state.

Expected behavior: Using none mnemonic letter should not be accepted by any other control until this state is closed in the RadMenu.


Unplanned
Last Updated: 09 Feb 2026 14:10 by ADMIN
In this case, we have a hierarchical gridview with multiple templates for the child rows. The PageViewMode is set to ExplorerBar. Holding the Ctrl key does not select multiple rows. This is possible using only the Shift key.
Unplanned
Last Updated: 05 Feb 2026 10:00 by ADMIN
In this particular scenario, we double-click a property grid item. Then we try to resize the description area at the bottom. When we resize the area and release the mouse left button, the area continue to resize while mouse is moved.
Unplanned
Last Updated: 27 Jan 2026 21:34 by Joseph
Created by: Gemma
Comments: 4
Category: UI for WinForms
Type: Bug Report
2

I am working with the RadListView and noticed that its right and bottom border gets clipped at some (not all) width/heights and some scale factors (most notably 150% and 175%). This problem does not occur with the basic System.Windows.Forms.ListView.

Here is the code that I have wrote to replicate this problem with both the WinForms list view and the RadListView. 

      private void InitializeComponent()
      {
              this.listView1 = new System.Windows.Forms.ListView();
              this.radListView1 = new Telerik.WinControls.UI.RadListView();
              ((System.ComponentModel.ISupportInitialize)(this)).BeginInit();
              this.SuspendLayout();

              this.listView1.HideSelection = false;
              this.listView1.Location = new System.Drawing.Point(155, 10);
              this.listView1.Name = "listView1";
              this.listView1.Size = new System.Drawing.Size(135, 175);

              this.radListView1.Location = new System.Drawing.Point(5, 10);
              this.radListView1.Name = "radListView1";
              this.radListView1.Size = new System.Drawing.Size(135, 175);
              this.radListView1.UseCompatibleTextRendering = true;

              this.Controls.Add(this.radListView1);
this.Controls.Add(this.listView1);

              this.Name = "RadForm1";
              this.Text = "RadForm1";
              ((System.ComponentModel.ISupportInitialize)(this)).EndInit();
              this.ResumeLayout(false);
      }

Here is a screenshot of the dialog when the scale factor is at 100% (left is the RadListView component):

and here is a screenshot of when my display is scaled at 150% (left is the RadListView component):


To replicate: run the project attached, both at 100% scaling and 150% scaling. 

Thanks!

Unplanned
Last Updated: 27 Jan 2026 13:10 by ADMIN
Created by: Matthias
Comments: 6
Category: Spreadsheet
Type: Bug Report
9

Currently, it takes around 5 seconds to load the RadSpreadsheetRibbonBar.

Please run the project and compare the load time when clicking the two buttons in the main form.

Unplanned
Last Updated: 20 Jan 2026 11:57 by ADMIN
In this case, the SelectedValue property of the RadMultiColumnComboBox control is bound to a custom property. When we select an item from the dropdown, the application hangs. 
Unplanned
Last Updated: 13 Jan 2026 13:15 by ADMIN
The preview version assembly archive contains AI assemblies related to the RadPdfViewer control that need to be excluded and not distributed.
Unplanned
Last Updated: 13 Jan 2026 12:57 by Dane

It used to work until Q3 2024:

After that, the import operation is successful. However, the image rendering of the SVG when assigning the Workbook results in an error message:  System.ArgumentException: 'Parameter is not valid.'

        public Form1()
        {
            InitializeComponent();
            using (var fileStream = File.OpenRead("example.xlsx"))
            {
                Workbook wb = new XlsxFormatProvider().Import(fileStream);
                radSpreadsheet.Workbook = wb;
            }
        }

Unplanned
Last Updated: 19 Dec 2025 14:17 by ADMIN
Table rows resize incorrectly when the table spans multiple pages
Unplanned
Last Updated: 24 Nov 2025 16:09 by ADMIN
We have found an issue when using the RadOverlayManager. We noticed that when our users have multiple monitors, the form Overlay shows in an incorrect position. In order to replicate this, set the scaling of the Main monitor to 125%
Unplanned
Last Updated: 03 Nov 2025 14:37 by ADMIN
Created by: Chris
Comments: 1
Category: PdfViewer
Type: Bug Report
0
When navigating to the second page of the attached pdf document, the textbox field becomes non-editable. However, when the same document is opened in Adobe Acrobat, editing works as expected.
Unplanned
Last Updated: 13 Oct 2025 13:17 by ADMIN
Created by: Suresh
Comments: 1
Category: FileDialogs
Type: Bug Report
2
In the current scenario, we are using RadOpenFileDialog. When trying to select 700 items in the UI using Ctrl + A, the control freeze due to the large number of files.
Unplanned
Last Updated: 03 Oct 2025 13:41 by ADMIN
Created by: Developer at
Comments: 6
Category: ColorDialog
Type: Bug Report
3

Hi Guys,

 

ColorDialog on higher dpi has some small problems.

1. Size of dialog is larger so there is large gap in right and bottom part.

2. Selected radio button black circle is not in center of larger circle.

 

Best regards

Rene

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