Show TreeView in Expanded Mode

[Kalpesh]

Hi

I have seen that, TreeNode has the property ExpandMode. My Scenarios is - I am binding TreeView from back-end by just providing data source (not creating tree nodes and adding it to treeview), also in design I have just placed TreeView.

Now, when my page is loaded and treeview is displayed, I want all nodes displayed in Expanded Mode. I am looking forward for a single property on TreeView level. I do not want/love to write any (C# or JS) code to iterate through and set expand mode.

Please provide your suggestion for this. Thanks.

[Shinu]

Hi Kalpesh,

Please try to use the server side  ExpandAllNodes() method for expanding all the nodes of the RadTreeView. Please have a look into the sample code I tried.

ASPX:

<telerik:RadTreeView ID="RadTreeView1" runat="server">
</telerik:RadTreeView>

C#:

protected void Page_Load(object sender, EventArgs e)
{
    RadTreeView1.DataSourceID = "SqlDataSource1";
    RadTreeView1.DataFieldID = "id";
    RadTreeView1.DataFieldParentID = "parentid";
    RadTreeView1.DataTextField = "text";
    RadTreeView1.DataBind();
    // expand all the nodes
    RadTreeView1.ExpandAllNodes();
}

Thanks,
Shinu.

[Kalpesh]

Thanks Shinu for this.

Actually after posting here ..I continued research and found that soln.

Thanks again for your quick reply.