Set Properties on the RadPropertyGrid inside the CollectionEditor

Updated on Sep 24, 2025

Environment

Product Version	2018.2.620
Product	RadPropertyGrid for WPF

Description

How to set properties on the RadPropertyGrid inside the CollectionEditor.

Solution

1. Handle the Loaded event of the parent RadRropertyGrid.

   C#

   	private void RadPropertyGrid_Loaded(object sender, RoutedEventArgs e)
   	{
   		var editorPicker = rpg.ChildrenOfType<CollectionEditorPicker>().First();
   		var collectionEditor = editorPicker.CollectionEditor;
   		collectionEditor.Loaded += CollectionEditor_Loaded;
   	}

   VB.NET

   	Private Sub RadPropertyGrid_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
   		Dim editorPicker = rpg.ChildrenOfType(Of CollectionEditorPicker)().First()
   		Dim collectionEditor = editorPicker.CollectionEditor
   		collectionEditor.Loaded += CollectionEditor_Loaded
   	End Sub

2. Handle the Loaded event of the CollectionEditor.

   C#

   	private void CollectionEditor_Loaded(object sender, RoutedEventArgs e)
   	{
   		var collectionEditor = sender as CollectionEditor;
   		var propertyGrid = collectionEditor.ChildrenOfType<RadPropertyGrid>().First();
     			propertyGrid.LabelColumnWidth = new GridLength(50);
     			// set any other properties
   	}

   VB.NET

   	Private Sub CollectionEditor_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
   		Dim collectionEditor = TryCast(sender, CollectionEditor)
   		Dim propertyGrid = collectionEditor.ChildrenOfType(Of RadPropertyGrid)().First()
       propertyGrid.LabelColumnWidth = New GridLength(50)
       ' set any other properties
   	End Sub

See Also

• CollectionEditor