ImageHeight and ImageWidth properties C1Window to C1Dialog 2025v2 399

ImageHeight and ImageWidth properties C1Window to C1Dialog 2025v2 399

Posted by: enrique.pv-ext on 19 February 2026, 5:52 am EST

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  enrique.pv-ext

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  Posted 19 February 2026, 5:52 am EST

  Hi,

  Migrate from 2010v1 to 2025v2 399 in ASP.NET WebForms NET Framework 4.8.1.

  Using C1Dialog from C1.Web.Wijmo.Controls.48.dll

  Changes C1Window to C1Dialog control.

  Now, has not this properties:

  ImageHeight="0" 
  ImageWidth="0"

  Any alternatives for those properties?

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  kartik.dua

  

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  Posted 20 February 2026, 7:30 am EST

  Hi,

  As per the older documentation, the ImageHeight and ImageWidth properties of C1Window allowed to set the height and width of the icon displayed in the top-left corner of the caption bar (right before the title).

  As per the discussion in your previous forum thread https://developer.mescius.com/forums/webforms-edition/captionbuttons-c1window-to-c1dialog-2025v2-399, we already mentioned that the Icon property is not available in C1Dialog. So, the only way to show an icon is by using the workaround suggested in that thread. There, you can set the height and width of the custom image.

  Best Regards,
  
  Kartik