I am picking up this error in my project. i installed the latest service pack last night:
Warning 17 The Controls collection of the UltraPanel is read-only. Modify the UltraPanel.ClientArea.Controls collection
It is being triggered here:
this.frmMain_Fill_Panel.Controls.Add(this.frmMain_Fill_Panel.ClientArea);
Mark this as closed since I rebuilt the whole form. I didn't have time due to a conference deadline so I had to act immediately.
The code was added by the designer. After the upgrade, my solution wouldn't compile due to it and I couldn't open the designer for that form due to that line.
Hello ,
I guess that you are using UltraToolbarsManager in your application, because usually UltraToolbarsManager adds frmMain_Fill_Panel to the form. Also I suppose that you get this exception from Designer.cs file. I have tried to reproduce your issue (to get this line of code that you are posted in the designer file) with upgrading of a small sample from 10.30SR 1000 to 10.3 SR 2083, but I was not able to get this line of code in my designer file. So I add it manually and, just then I was able to reproduce you’re the mentioned behavior. So if you remove or comment this code line everything should work. But the question is how this line appeared in your designer file? Please try my suggestion and let me know for the results, also if is possible could you please tell me if you manually add this line of code for some reason.
I am waiting for your response.
Current: 10.3.20103.1000New: 10.3.20103.2083 (I think this is correct. Whatever SP is out there right now)
Yes, I used the upgrade facility.
I ended up rebuilding the form.
Could you please let me know the exact version of Infragistics from which you are updated, and the exact version of Infragistics to which you would like to update? Also could you please let me know if you are using “Infragistics Version Utility” to upgrade your project.