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Sean McCown
685
UltraPanel is read-only
posted

I'm getting this error all of a sudden in my designer.

The Controls collection of the UltraPanel is read-only. Modify the UltraPanel.ClientArea.Controls collection instead.

If I remove this line, it runs just fine, but then a panel in my app doesn't show up.

this.formMEMain_Fill_Panel.Controls.Add(this.formMEMain_Fill_Panel.ClientArea);

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  • 1700
    Offline posted

    Hello Sean, 

    In order to fix this issue, what you would need to do is replacing the lines of code that contain this: 

    this.formMEMain_Fill_Panel.Controls.Add(…) 

    With the following line: 

    this.formMEMain_Fill_Panel.ClientArea.Controls.Add(…) 

    Afterwards, the solution should be cleaned and rebuilt and the issue should be resolved. 

    Please let me know if you need any further assistance. 

    Regards,
    Ivan Kitanov

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