Friday, June 15, 2012

Tree View

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>
<script runat="server">
    public void OnClick(Object sender, EventArgs e)
    {
        Label1.Text = "You selected " + TreeView1.SelectedNode.Value+ ".";
    }
</script>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
   
        <asp:TreeView ID="TreeView1" runat="server" OnSelectedNodeChanged="OnClick" OnAdaptedSelectedNodeChanged="OnClick"
            onload="TreeView1_Load">
        </asp:TreeView>
   
    </div>
    <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </form>
</body>
</html>

CS File

protected void TreeView1_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

TreeNode Node = new TreeNode("Parent");

Node.SelectAction = TreeNodeSelectAction.SelectExpand;

TreeView1.Nodes.Add(Node);

TreeNode ParentNode = Node;

TreeNode node2 = new TreeNode("child1", "http://ge");

node2.SelectAction = TreeNodeSelectAction.SelectExpand;

ParentNode.ChildNodes.Add(node2);

TreeNode node3 = new TreeNode("child2");

node3.SelectAction = TreeNodeSelectAction.SelectExpand;

node2.ChildNodes.Add(node3);

}

}

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