How to add custom icon using smart tag of C1Ribbon in .NET8?

How to add custom icon using smart tag of C1Ribbon in .NET8?

Posted by: l.balazs on 15 July 2025, 6:50 am EST

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  l.balazs

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  Posted 15 July 2025, 6:50 am EST - Updated 15 July 2025, 6:55 am EST

  Up to .NET Framework 4.8 we could add custom icon to any control in C1 Ribbon.

  1. Hover over a button in C1Ribbon.
  2. From smart tag 32x32 px (or any size including custom) icon
  3. In Select Image dialog click on New Bitmap Icon.
  4. The Select Resource dialog appears so we can select any custom image.
     
     (See attached image)
     
     

  The problem is that setting custom image with smart tag of C1Ribbon does not work in .NET 8 2025v1 version. Clicking on Select Image button does not open the Select Resource dialog so you can’t select a custom image.

  Under .NET8 the only way to add a custom image to a control of C1Ribbon is to manually edit the [FormName].designer.cs file and add the needed image from Properties.Resources.[ImageName] manually:

  rbutClockStart.IconSet.Add(new C1.Framework.C1BitmapIcon(null, new Size(32, 32), Color.Transparent, Properties.Resources.clockStart));

  Thanks,
  
  Louis

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  kartik.dua

  

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  Posted 16 July 2025, 1:38 am EST - Updated 16 July 2025, 1:43 am EST

  Hi Louis,

  To open the Select Resource dialog for choosing a custom icon in C1Ribbon (.NET 8), you can click the ellipsis button next to the Source property of the C1BitmapIcon.

  Please see the attached screenshot for reference

  

  1547×774 63.5 KB

  Best Regards,
  
  Kartik

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  l.balazs

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  Posted 16 July 2025, 2:10 am EST

  Thanks Kartik,
  
  I should have known that… Sorry for the stupid question.
  
  Best regards,
  
  Louis