I'm having a problem with the RadPropertyGrid when bound to an indexed property. Getting the property works fine, but after changing the field, the setter never gets called.

 Attached is a simple test program. This program has a RadPropertyGrid bound to a simple string property and an indexed property. These same two properties are also bound to a TextBox.

 Notice that when the values in the TextBoxes are changed, the debug output shows that the setters are called and the values displayed in the RadPropertyGrid are properly updated.

 When the simple string is changed in the RadPropertyGrid, the debug output shows that the setter is called and the value displayed in the TextBox is properly updated.

 But, when the indexed property is changed in the RadPropertyGrid, the debug output does not show the setter getting called and the value displayed in the TextBox does not get updated.

*** The support for collection indexer binding will be available with R2 2016.

Provide support for Editor Attribute.

Expose an event  corresponding to AutogeneratingPropertyDefinition so that the user can customize the property definitions.

Three separate modes for RadPropertyGrid's ordering according to its states. OrderIndex should be respected in Sorted state/Grouped state/Both states (default value).

RadPropertyGrid's Description Panel Resizing/Visual Studio like behavior

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

Research the opportunity to add support for TypeConverter on class.

Available in the 2017 R1 Release (2017.1.117).

Currently, if you change the value of a property in the object bound to the property grid control, the control's UI won't reflect this change.

 SelectedPropertyDefinitions are not cleared when RadPropertyGrid.Item being changed.

Currently, the control allows you to search only for fields that have been expanded already. If a parent field was never expanded, the search won't look for its children.

Allow searching in not expanded fields.

So far only IDataErrorInfo and exception based validation is supported. RadGridView already supports INotifyDataErrorInfo, it's time for RadPropertyGrid.

Available in the 2017 R1 Release (2017.1.117).

It should be a themable editor which allows users to select a file or a directory from the file system using OpenFileDialog, FolderBrowserDialog or directly to type the full path to the file.