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