// Create the last padding column header in GridViewHeaderRowPresenter
private void AddPaddingColumnHeader()
{
GridViewColumnHeader paddingHeader = new GridViewColumnHeader();
paddingHeader.IsInternalGenerated = true;
paddingHeader.SetValue(GridViewColumnHeader.RolePropertyKey, GridViewColumnHeaderRole.Padding);
paddingHeader.Content = null;
paddingHeader.ContentTemplate = null;
paddingHeader.ContentTemplateSelector = null;
paddingHeader.MinWidth = 0;
paddingHeader.Padding = new Thickness(0.0);
paddingHeader.Width = Double.NaN;
paddingHeader.HorizontalAlignment = HorizontalAlignment.Stretch;
InternalChildren.AddInternal(paddingHeader);
_paddingHeader = paddingHeader;
}
