private void OnAnyMouseLeftButtonDown(System.Windows.Input.MouseButtonEventArgs e)
{
// Ignore actions if the button down arises from a different presentation source
if (!PresentationSource.UnderSamePresentationSource(e.OriginalSource as DependencyObject, this))
{
return;
}
DataGridRow rowOwner = DataGridRowOwner;
DataGrid dataGridOwner = rowOwner != null ? rowOwner.DataGridOwner : null;
if ((dataGridOwner != null) && (rowOwner != null))
{
// HandleSelectionForRowHeaderAndDetailsInput below sets the CurrentCell
// of datagrid to the cell with displayindex 0 in the row.
// This implicitly queues a request to MakeVisible command
// of ScrollViewer. The command handler calls MakeVisible method of
// VirtualizingStackPanel (of rows presenter) which works only
// when the visual's parent layout is clean. DataGridCellsPanel layout is
// not clean as per MakeVisible of VSP becuase we distribute the layout of cells for the
// sake of row headers and hence it fails. VSP.MakeVisible method requeues a request to
// ScrollViewer.MakeVisible command hence resulting into an infinite loop.
// The workaround is to bring the concerned cell into the view by calling
// ScrollIntoView so that by the time MakeVisible handler of ScrollViewer is
// executed the cell is already visible and the handler succeeds.
if (dataGridOwner.CurrentCell.Item != rowOwner.Item)
{
dataGridOwner.ScrollIntoView(rowOwner.Item, dataGridOwner.ColumnFromDisplayIndex(0));
}
dataGridOwner.HandleSelectionForRowHeaderAndDetailsInput(rowOwner, /* startDragging = */ Mouse.Captured == null);
}
}
// Token: 0x06005D22 RID: 23842 RVA: 0x001A35F0 File Offset: 0x001A17F0
private void OnAnyMouseLeftButtonDown(MouseButtonEventArgs e)
{
if (!PresentationSource.UnderSamePresentationSource(new DependencyObject[]
{
e.OriginalSource as DependencyObject,
this
}))
{
return;
}
DataGridRow dataGridRowOwner = this.DataGridRowOwner;
DataGrid dataGrid = (dataGridRowOwner != null) ? dataGridRowOwner.DataGridOwner : null;
if (dataGrid != null && dataGridRowOwner != null)
{
if (dataGrid.CurrentCell.Item != dataGridRowOwner.Item)
{
dataGrid.ScrollIntoView(dataGridRowOwner.Item, dataGrid.ColumnFromDisplayIndex(0));
}
dataGrid.HandleSelectionForRowHeaderAndDetailsInput(dataGridRowOwner, Mouse.Captured == null);
}
}
