internal void OnItemRemoved(DataGridItemRemovedEventArgs e)
{
if (this.ItemRemoved != null)
{
this.ItemRemoved(this, e);
}
}
public virtual void Remove( object item )
{
if( !this.CanRemove )
throw new InvalidOperationException( "An attempt was made to remove an item from a source that does not support removal." );
if( this.IsEditingItem || this.IsAddingNew )
throw new InvalidOperationException( "An attempt was made to remove an item while an item is being edited or added." );
int sourceIndex = -2;
if( ( !this.HasSource ) || ( !this.IsSourceSupportingChangeNotification ) )
sourceIndex = this.IndexOfSourceItem( item );
DataGridRemovingItemEventArgs removingItemEventArgs = new DataGridRemovingItemEventArgs( this, item, -1, false );
this.RootDataGridCollectionViewBase.OnRemovingItem( removingItemEventArgs );
if( removingItemEventArgs.Cancel )
throw new DataGridException( "Remove was canceled." );
if( !removingItemEventArgs.Handled )
{
if( !this.HasSource )
throw new InvalidOperationException( "The RemovingItem event must be handled when not using an underlying data source." );
if( sourceIndex == -2 )
sourceIndex = this.IndexOfSourceItem( item );
if( sourceIndex != -1 )
this.InternalRemoveAt( sourceIndex );
}
if( ( !this.HasSource ) || ( !this.IsSourceSupportingChangeNotification ) )
{
DeferredOperation deferredOperation = new DeferredOperation(
DeferredOperation.DeferredOperationAction.Remove,
sourceIndex,
new object[] { item } );
this.ExecuteOrQueueSourceItemOperation( deferredOperation );
}
DataGridItemRemovedEventArgs itemRemovedEventArgs = new DataGridItemRemovedEventArgs( this, item, -1 );
this.RootDataGridCollectionViewBase.OnItemRemoved( itemRemovedEventArgs );
}
internal void OnItemRemoved( DataGridItemRemovedEventArgs e )
{
if( this.ItemRemoved != null )
this.ItemRemoved( this, e );
if( m_parentCollectionViewSourceBase != null )
m_parentCollectionViewSourceBase.OnItemRemoved( e );
}
internal void OnItemRemoved( DataGridItemRemovedEventArgs e )
{
if( this.ItemRemoved != null )
this.ItemRemoved( this, e );
}
