Dynamic Tree view in Adding

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Hello
Please help me.
I am Creating a dynamic tree using Asp.net,C# with Linq so i have problem to add the node of selecting node how adding?

Posted 6-Apr-11 22:39pm

kaival007

Updated 7-Apr-11 4:11am

thatraja

v2

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dan!sh 7-Apr-11 4:46am

You want to add new nodes under selected node? Please descride again nad what does LINQ plays in it?

kaival007 7-Apr-11 8:26am

I want to add new node under selected node

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**R. Giskard Reventlov** · Answer 1 · 2011-04-07T04:12:00

Basically you have to populate the parent level and then implement the OnTreeNodePopulate event. You might create the mark-up as:

XML

<asp:TreeView
    ID="tvRPM"
    runat="server"
    ClientIDMode="Static"
    EnableClientScript="true"
    ExpandDepth="0"
    PopulateNodesFromClient="true"
    ShowLines="true"
    OnTreeNodePopulate="PopulateNode"
    OnSelectedNodeChanged="tvRPM_SelectedNodeChanged">
    <NodeStyle ForeColor="Black" HorizontalPadding="3" VerticalPadding="3" />
    <HoverNodeStyle BackColor="#ffffcc" />
    <SelectedNodeStyle BackColor="#dddddd" BorderColor="DarkGray" BorderStyle="Dotted" BorderWidth="1" HorizontalPadding="5" VerticalPadding="3" />
</asp:TreeView>

and have a method that populates the parents on load. then , within the PopulateNode method you would create and populate the childnodes passing the unique id of the parent as a key.

The method signature of PopulateNode looks like:

protected void PopulateNode(Object sender, TreeNodeEventArgs e)

I leave it to you to research the means by which you populate each new node from this point. Note that there are several articles on CP that outline this process in detail: search for those first.