The following line gets serialized when set this property:
((Telerik.WinControls.UI.GridSelectCheckBoxElement)(this.radGridView1.GetChildAt(0).GetChildAt(0).GetChildAt(2).GetChildAt(0).GetChildAt(0).GetChildAt(1).GetChildAt(0).GetChildAt(1).GetChildAt(0))).Visibility = Telerik.WinControls.ElementVisibility.Collapsed;
Hello, fabrizio,
Thank you for reporting this issue.
Regards,
Nadya | Tech Support Engineer
Progress Telerik
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