// Fill necessary properties in floating header
private void UpdateFloatingHeader(GridViewColumnHeader srcHeader)
{
Debug.Assert(srcHeader != null, "srcHeader is null");
Debug.Assert(_floatingHeader != null, "floating header is null");
_floatingHeader.Style = srcHeader.Style;
_floatingHeader.FloatSourceHeader = srcHeader;
_floatingHeader.Width = srcHeader.ActualWidth;
_floatingHeader.Height = srcHeader.ActualHeight;
_floatingHeader.SetValue(GridViewColumnHeader.ColumnPropertyKey, srcHeader.Column);
_floatingHeader.Visibility = Visibility.Hidden;
// override floating header's MinWidth/MinHeight to disable users to change floating header's Width/Height
_floatingHeader.MinWidth = srcHeader.MinWidth;
_floatingHeader.MinHeight = srcHeader.MinHeight;
object template = srcHeader.ReadLocalValue(GridViewColumnHeader.ContentTemplateProperty);
if ((template != DependencyProperty.UnsetValue) && (template != null))
{
_floatingHeader.ContentTemplate = srcHeader.ContentTemplate;
}
object selector = srcHeader.ReadLocalValue(GridViewColumnHeader.ContentTemplateSelectorProperty);
if ((selector != DependencyProperty.UnsetValue) && (selector != null))
{
_floatingHeader.ContentTemplateSelector = srcHeader.ContentTemplateSelector;
}
if (!(srcHeader.Content is Visual))
{
_floatingHeader.Content = srcHeader.Content;
}
}
