public static Visual GetDescendantByName(FrameworkElement element, string name)
{
if (element == null)
{
return null;
}
if (element.Name == name)
{
return element;
}
Visual descendantByName = null;
if (element != null)
{
element.ApplyTemplate();
}
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(element); i++)
{
Visual child = VisualTreeHelper.GetChild(element, i) as Visual;
descendantByName = GetDescendantByName((FrameworkElement) child, name);
if (descendantByName != null)
{
return descendantByName;
}
}
return descendantByName;
}
public static void ApplyAllTemplates(this sw.FrameworkElement parent)
{
if (parent == null)
{
return;
}
parent.ApplyTemplate();
foreach (var logicalChild in sw.LogicalTreeHelper.GetChildren(parent))
{
if (logicalChild is sw.FrameworkElement childElement)
{
// recursively apply
childElement.ApplyAllTemplates();
}
}
int childrenCount = swm.VisualTreeHelper.GetChildrenCount(parent);
for (int i = 0; i < childrenCount; i++)
{
var child = swm.VisualTreeHelper.GetChild(parent, i);
// If the child is not of the request child type child
if (child is sw.FrameworkElement childElement)
{
// recursively apply
childElement.ApplyAllTemplates();
}
}
}
public static void OpenParentRibbonGroupDropDownSync(FrameworkElement fe, bool templateApplied)
{
if (!templateApplied)
{
// Apply template if not yet applied.
fe.ApplyTemplate();
}
// Get the Parent RibbonGroup and open its dropdown if needed.
RibbonGroup ribbonGroup = TreeHelper.FindAncestor(fe, delegate(DependencyObject element) { return (element is RibbonGroup); }) as RibbonGroup;
if (ribbonGroup == null)
{
ribbonGroup = TreeHelper.FindLogicalAncestor<RibbonGroup>(fe);
}
if (ribbonGroup != null &&
ribbonGroup.IsCollapsed &&
!ribbonGroup.IsDropDownOpen)
{
ribbonGroup.IsDropDownOpen = true;
fe.UpdateLayout();
}
}
