# CollectionEditorDialog Provides a dialog containing a collection editor. ![](CollectionEditorDialog_collectioneditordialog.jpg) ## Properties || Property || Description | ItemsSource | Gets or sets a list used to generate the content of the CollectionEditor. | ItemsSourceType | Gets or sets the type of ItemsSource. | NewItemTypes | Gets or sets a list of custom item types that appear in the Add comboBox.