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hi all,

Iam suffering with a problem can we hide the nodes in treeview
depend upon the user login i just tried some code but it was not
woking properly plz can u any one help mee as early as possible
thanks.

code:
protected void Page_Load(object sender, EventArgs e)
{
TreeView1.TreeNodeDataBound += new TreeNodeEventHandler
(TreeView1_TreeNodeDataBound);
SiteMapDataSource1.Provider = this.SiteMapDataSource1.Provider;
}
protected void TreeView1_TreeNodeDataBound(object sender,
TreeNodeEventArgs e)
{
SiteMapNode thisMapNode = (SiteMapNode)e.Node.DataItem;
TreeNode parentTreeNode = e.Node.Parent;
if (thisMapNode["isPhantom"] != null && thisMapNode
["isPhantom"].ToLower().Equals(bool.TrueString.ToLower()) &&
parentTreeNode != null)
parentTreeNode.ChildNodes.Remove(e.Node); ////IAM GETTING
ERROR HERE AS OBJECT INSTRANCE IS NOT SET TO ANOTHER INSATANTCE OF AN
OBJECT //// }

On Jun 24, 1:25*pm, raki <nhrak...@gmail.com> wrote:
> hi all,
>
> * * * *Iam suffering with a problem can we hide the nodes in treeview
> depend upon the user login i just tried some code but it was not
> woking properly plz can u any one help mee as early as possible
> thanks.
>
> code:
> protected void Page_Load(object sender, EventArgs e)
> * * {
> * * * * TreeView1.TreeNodeDataBound += new TreeNodeEventHandler
> (TreeView1_TreeNodeDataBound);
> * * * *SiteMapDataSource1.Provider = this.SiteMapDataSource1.Provider;
> * * * * * * }
> * * *protected void TreeView1_TreeNodeDataBound(object sender,
> TreeNodeEventArgs e)
> * * {
> * * * * SiteMapNode thisMapNode = (SiteMapNode)e.Node.DataItem;
> * * * * TreeNode parentTreeNode = *e.Node.Parent;
> * * * * if (thisMapNode["isPhantom"] != null && thisMapNode
> ["isPhantom"].ToLower().Equals(bool.TrueString.ToLower()) &&
> parentTreeNode != null)
> * * * * * * parentTreeNode.ChildNodes.Remove(e.Node); ////IAM GETTING
> ERROR HERE AS OBJECT INSTRANCE IS NOT SET TO ANOTHER INSATANTCE OF AN
> OBJECT //// * }

The error means that parentTreeNode is null.

if (parentTreeNode != null)
parentTreeNode.ChildNodes.Remove(e.Node);