/// <summary>
/// Insert the children of the current source node under the node pointed to by the destination.
/// </summary>
/// <param name="dest"></param>
/// <param name="source"></param>
/// <returns></returns>
public static bool CopyChildren(this BaseElementNavigator dest, ElementNavigator source)
{
if (dest.HasChildren)
{
return(false); // Protect children from being overwritten
}
if (!source.MoveToFirstChild())
{
return(true); // Nothing to copy, but successful anyway
}
bool firstChild = true;
do
{
var copiedChild = (Profile.ElementComponent)source.Current.DeepCopy();
if (firstChild)
{
// The first time, create a new child in the destination
dest.InsertFirstChild(copiedChild);
firstChild = false;
}
else
{
// Then insert other childs after that
dest.InsertAfter(copiedChild);
}
// If there are nested children in the source, insert them under
// the newly inserted node in the destination
if (source.HasChildren)
{
dest.CopyChildren(source);
}
}while (source.MoveToNext());
// Bring both source & destination back one step to the original parents
source.MoveToParent();
dest.MoveToParent();
return(true);
}
public static bool AppendChild(this BaseElementNavigator nav, Profile.ElementComponent child)
{
var bm = nav.Bookmark();
if (nav.MoveToFirstChild())
{
while (nav.MoveToNext())
{
;
}
var result = nav.InsertAfter(child);
if (!result)
{
nav.ReturnToBookmark(bm);
}
return(result);
}
else
{
return(nav.InsertFirstChild(child));
}
}
