InvalidCastException is thrown when binding PropertyGrid.Item to collection. The exception is thrown in \\Core\Data\Extensions\FuncExtensions.cs. Unable to cast object of type 'System.Collections.Generic.List`1[System.Windows.Window]' to type 'Telerik.Windows.Controls.Data.PropertyGrid.PropertySet'. Resolved with LIB version 2014.1.317
RadPropertyGrid exposes PropertySetsValidationFunc property that validates the new value of a property. However, it is executed after the property is set. PropertyGrid should validate them before the setter is invoked. Available in LIB version: 2017.2.605
Should be resolved with lib version 2014.3.1124.
GetStandardValuesSupported and GetStandardValues methods of a type converter are not called. Available in the 2017 R1 Release (2017.1.117).
Foreground defined within PropertyGridField's Label Style is not applied in Expression_Dark theme.
Available in the 2017 R2 Release.
Nullable properties with non-matching values are not updated after clearing the entire text of the field(PropertySets). Available in LIB version: 2017.2.515
The editor of nullable properties with non-matching values does not display the default value for this type(null) using PropertySets. Available in LIB version: 2017.2.515
If you have a data validation, and there is an invalid field with the red border around it, if you hide this field via the filtering feature or the collapsing its group, the validation red border (and the tooltip) disappears.
To resolve this, you will need to update the ErrorTemplate of the input field (the TextBox). You can do this in the FieldLoaded event handler.
Available in LIB version 2017.3.1127, it will be also available in the R1 2018 Release.
Modify the current implementation so that the TypeConverter is applied as well when its GetStandardValues method is not overriden. Available in LIB version 2017.1.417 , it will be also available in the R2 2017 Release.
Hello, my question is about RadPropertyGrid. The case if following. I use objects implementing ICustomTypeDescriptor, call it ClassTypeDescriptor, as items source for property grid and properties are derived from PropertyDescriptor class. It is important to have these objects grouped and sorted. That's why I pass System.ComponentModel.DataAnnotations.DisplayAttribute with GroupName and Order values set to the constructor of PropertyDescriptor. If I bind Item property of property grid direct to ClassTypeDescriptor, everything works like a charm, properties get grouped and sorted. But if I bind Item property to the List or any other collection of ClassTypeDescriptor, independently from the count of elements in it, grouping is getting lost and sorting is not applied also. I attach the demo solution to this report and hope for the quick answer. P.S.: I've tried the same case but with "normal" object with properties. And grouping and sorting work even if I bind a collection to Item property of PropertyGrid Thank you in advance Alexander Sherekin