When a RadValidationRule has the "PropertyName" assigned to a non-existent property, the RadVAlidationProvider.ValidateCore throws a NullReference exception because the property cannot be found via reflection and throws no error handling.

From OpenEdge ABL class, this is the code written into the forms InitializeComponent method.  The "IsValid"  property doesn't actually exist.

        radValidationRule3:AddControl(THIS-OBJECT:myTextBox).         radValidationRule3:Operator = Telerik.WinControls.Data.FilterOperator:IsNotEqualTo.         radValidationRule3:PropertyName = "IsValid".         radValidationRule3:ToolTipText = "Test".         radValidationRule3:Value = TRUE.

While we don't expect the functionality to actually work because the property isn't actually available to .NET, but the NullReferenceException is poorly handled.

I've attached a screenshot of the bit of code from RadValidationProvider.ValidateCore where this occurs.  This is from version 2020.3.1020.20

Here is the thrown stack exception details from visual studio.

System.NullReferenceException
HResult=0x80004003
Message=Object reference not set to an instance of an object.
Source=Telerik.WinControls.UI
StackTrace:
at Telerik.WinControls.UI.RadValidationProvider.ValidateCore(Object sender, EventArgs e)

This