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: 02 Feb 2026 15:20 by ADMIN
Created by: Sami Aljafar
Comments: 4
Category: UI Framework
Type: Feature Request
8

			
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: 22 Jan 2026 08:51 by ADMIN
Unplanned
Last Updated: 21 Jan 2026 12:06 by ADMIN
Created by: Chris
Comments: 1
Category: Map
Type: Feature Request
0
Expose a way to expand the cluster without zooming.
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: 16 Jan 2026 13:21 by ADMIN
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: 16 Dec 2025 09:37 by ADMIN
By default, in the hierarchy RadGridView, filtering the control will show the child row that matches the filtering criteria, along with its parent. The parent row itself could not match the filtering descriptor, which could lead to confusion. We could extend the current functionality of the control and expose a way to hide the parent in this case.
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: 18 Nov 2025 09:10 by ADMIN
Created by: Remco
Comments: 1
Category: Scheduler/Reminder
Type: Feature Request
0
The control uses DateTime.Now. The RadScheduler control can be enhanced by adding support for the TimeProvider class in its date-time calculations.
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: 20 Oct 2025 07:44 by ADMIN
Created by: Fabian
Comments: 1
Category: Chat
Type: Feature Request
0
Expose HyperlingClicked event.
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: 13 Oct 2025 12:23 by ADMIN
Created by: Nadya
Comments: 0
Category: TaskBoard
Type: Feature Request
0

Provide an option to edit the cards. 

Currently, we have a custom solution for card editing through a dialog: Task Card Edit Dialog - Telerik UI for WinForms

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

Unplanned
Last Updated: 02 Oct 2025 13:01 by vance chiang

When using DFKai-SB , the glyphs are not rendered like in Adobe or the browser:

Adobe:

PdfViewer:

 

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