MultiSelector::BeginUpdateSelectedItems Method ()

 
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Starts a new selection transaction.

Namespace:   System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected:
void BeginUpdateSelectedItems()

Exception Condition
InvalidOperationException

IsUpdatingSelectedItems is true when this method is called.

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

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();
}

.NET Framework
Available since 3.0
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