RadTreeView Value attribute

[Daniel]

I am populating a RadTreeView with a DataTable in c# with the display nodes showing CompanyNames, but I am not seeing any kind of hidden value attribute (CompanyID) in the source code when I view it from a browser.

I assigned the DataFieldID's in the .aspx page but I do not see how I am supposed to retrieve the ID in the Code-Behind?


         treeManageUsers.DataTextField = "CompanyName";
            treeManageUsers.DataFieldID = "CompanyID";
            treeManageUsers.DataValueField = "CompanyID";
            treeManageUsers.DataSource = treeDT;
            treeManageUsers.DataBind();


            <telerik:RadTreeView runat="server" ID="treeManageUsers" Skin="Telerik" 
                OnNodeClick="treeManageUsers_NodeClick" 
                DataTextField="CompanyName" 
                DataFieldID="CompanyID">
            </telerik:RadTreeView>

[Ivan Danchev]

Hello,

Instead of getting the value from the DataFieldID property you can get it from the DataValueField property:

protected void treeManageUsers_NodeClick(object sender, RadTreeNodeEventArgs e)
{
    RadTreeView tree = (RadTreeView)sender;
    var valueField = tree.DataValueField;
}

Regards,
Ivan Danchev
Telerik

 

 

[Boris]

Pardon my idle curiosity but isn't this rather redundant?  Why can't I access DataFieldId directly?

(This gave me some difficulty as well.)

[Ivan Danchev]

Hello Boris,

You are correct, I should have said "Apart from" and not "Instead of". In Daniel's case the same field "CompanyID" is set to both the DataFieldID and the DataValueField properties so accessing either of those would return the same result. The clicked Node's ID can be accessed through the NodeClick event's arguments: e.Node.ID. 

Regards,
Ivan Danchev
Telerik by Progress