public static object GetChild(object source, int index)
{
if (DXMethods.IsChrome(source))
{
return(DXMethods.GetRoot(source));
}
if (DXMethods.IsIFrameworkRenderElementContext(source))
{
var control = DXMethods.Is(source, "RenderControlBaseContext", "DevExpress.Xpf.Core.Native", false) ? ((dynamic)source).Control : null;
var rcc = DXMethods.RenderChildrenCount(source);
if (index >= rcc)
{
if (index == rcc && control != null)
{
return(control);
}
return(null);
}
return(DXMethods.GetRenderChild(source, index));
}
if (source is Visual)
{
return(VisualTreeHelper.GetChild((Visual)source, index));
}
return(null);
}
public VisualTreeItem FindNode(object target)
{
// it might be faster to have a map for the lookup
// check into this at some point
if (this.Target == target)
{
if (DXMethods.IsChrome(Target) && target is IInputElement)
{
var root = DXMethods.GetRoot(Target);
if (root != null)
{
var child = RenderTreeHelper.HitTest(root, System.Windows.Input.Mouse.GetPosition((IInputElement)target));
var node = FindNode(child);
if (node != null)
{
return(node);
}
}
}
return(this);
}
foreach (VisualTreeItem child in this.Children)
{
VisualTreeItem node = child.FindNode(target);
if (node != null)
{
return(node);
}
}
return(null);
}
public static int GetChildrenCount(object source)
{
if (DXMethods.IsChrome(source))
{
object root = DXMethods.GetRoot(source);
if (root != null)
{
return(1);
}
}
if (DXMethods.IsIFrameworkRenderElementContext(source))
{
int hasControl = DXMethods.Is(source, "RenderControlBaseContext", "DevExpress.Xpf.Core.Native", false) && ((dynamic)source).Control != null ? 1 : 0;
return(DXMethods.RenderChildrenCount(source) + hasControl);
}
if (source is Visual)
{
return(VisualTreeHelper.GetChildrenCount((Visual)source));
}
return(0);
}
