/// <summary>
/// Gets the node at level.
/// </summary>
/// <param name="startingNode">The starting node.</param>
/// <param name="level">The level.</param>
/// <param name="allowForwardSearch">if set to <c>true</c> allow forward search. Forward search will search all parent nodes and child nodes, where in other circumstances only parent nodes are searched.</param>
/// <returns>The node at level.</returns>
public static SiteMapNode GetNodeAtLevel(SiteMapNode startingNode, int level, bool allowForwardSearch)
{
var startingNodeLevel = startingNode.GetNodeLevel();
if (startingNodeLevel == level)
{
return(startingNode);
}
else if (startingNodeLevel > level)
{
var node = startingNode;
while (node != null)
{
if (node.GetNodeLevel() == level)
{
return(node);
}
node = node.ParentNode;
}
}
else if (startingNodeLevel < level && allowForwardSearch)
{
var node = startingNode;
while (node != null)
{
if (node.GetNodeLevel() == level)
{
return(node);
}
if (node.HasChildNodes)
{
node = node.ChildNodes[0];
}
else
{
break;
}
}
}
if (startingNode != null && startingNode.Provider.RootNode != null && allowForwardSearch)
{
return(startingNode.Provider.RootNode);
}
return(null);
}
/// <summary>
/// Gets the node at level.
/// </summary>
/// <param name="startingNode">The starting node.</param>
/// <param name="level">The level.</param>
/// <param name="allowForwardSearch">if set to <c>true</c> allow forward search. Forward search will search all parent nodes and child nodes, where in other circumstances only parent nodes are searched.</param>
/// <returns>The node at level.</returns>
public static SiteMapNode GetNodeAtLevel(SiteMapNode startingNode, int level, bool allowForwardSearch)
{
var startingNodeLevel = startingNode.GetNodeLevel();
if (startingNodeLevel == level)
{
return startingNode;
}
else if (startingNodeLevel > level)
{
var node = startingNode;
while (node != null)
{
if (node.GetNodeLevel() == level)
{
return node;
}
node = node.ParentNode;
}
}
else if (startingNodeLevel < level && allowForwardSearch)
{
var node = startingNode;
while (node != null)
{
if (node.GetNodeLevel() == level)
{
return node;
}
if (node.HasChildNodes)
{
node = node.ChildNodes[0];
}
else
{
break;
}
}
}
if (startingNode != null && startingNode.Provider.RootNode != null && allowForwardSearch)
{
return startingNode.Provider.RootNode;
}
return null;
}