MultiSelector.BeginUpdateSelectedItems Method

Definition

Namespace:

System.Windows.Controls.Primitives

Assembly:

PresentationFramework.dll

Starts a new selection transaction.

protected:
 void BeginUpdateSelectedItems();

protected void BeginUpdateSelectedItems ();

member this.BeginUpdateSelectedItems : unit -> unit

Protected Sub BeginUpdateSelectedItems ()

Exceptions

InvalidOperationException

IsUpdatingSelectedItems is true when this method is called.

Examples

The following example shows how to use the BeginUpdateSelectedItems method in a class derived from MultiSelector.

if (!this.IsUpdatingSelectedItems)
{
    this.BeginUpdateSelectedItems();
    foreach (object item in itemsToAdd)
    {
        this.SelectedItems.Add(item);
    }
    this.EndUpdateSelectedItems();
}

Remarks

The BeginUpdateSelectedItems method sets IsUpdatingSelectedItems to true. The EndUpdateSelectedItems method sets IsUpdatingSelectedItems to false.