RadMenu for ASP.NET
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Databinding with Custom Attributes Send comments on this topic.
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Example scenarios (How to) > Databinding with Custom Attributes

Glossary Item Box

When binding the Telerik RadMenu to data, custom attributes can be set in the ItemDataBound event.

Here is an example:

ASPX Copy Code
<rad:RadMenu
   ID="RadMenu1"
   runat="server"
   OnItemDataBound="RadMenu1_ItemDataBound" >
</rad:RadMenu>
        
C# Copy Code
protected void Page_Load(object sender, EventArgs e)
   {
       //dynamically crate a table to populate the menu
       DataTable table1 = new DataTable();

       table1.Columns.Add("ID");
       table1.Columns.Add("ParentID");
       table1.Columns.Add("Roles"); // the column for the custom attributes
       table1.Columns.Add("Text");

       table1.Rows.Add(new string[] { "1", null, "1", "Politics" });
       table1.Rows.Add(new string[] { "2", null, "1", "Sports" });
       table1.Rows.Add(new string[] { "3", null, "3", "Events" });
       table1.Rows.Add(new string[] { "4", "1", "4", "CNN" });
       table1.Rows.Add(new string[] { "5", "1", "5", "NBC" });
       table1.Rows.Add(new string[] { "6", "1", "6", "ABC" });
       table1.Rows.Add(new string[] { "7", "2", "7", "US Sports" });
       table1.Rows.Add(new string[] { "8", "2", "2", "European Sports" });
       table1.Rows.Add(new string[] { "9", "7", "4", "Baseball" });
       table1.Rows.Add(new string[] { "10", "7", "3", "Football" });
       table1.Rows.Add(new string[] { "11", "7", "2", "Basketball" });
       table1.Rows.Add(new string[] { "12", "8", "4", "Soccer" });
       table1.Rows.Add(new string[] { "14", "3", "5", "Oscar Awards" });
       table1.Rows.Add(new string[] { "15", "3", "2", "MTV Movie Awards" });

       RadMenu1.DataSource = table1;
       RadMenu1.DataFieldID = "ID";
       RadMenu1.DataFieldParentID = "ParentID";
       RadMenu1.DataTextField = "Text";
       RadMenu1.DataBind();

   }

   protected void RadMenu1_ItemDataBound(object sender, Telerik.WebControls.RadMenuEventArgs e)
   {
       DataRowView dataRow = (DataRowView)e.Item.DataItem;
       e.Item.Attributes["Roles"] = dataRow["Roles"].ToString();

       e.Item.ToolTip = e.Item.Attributes["Roles"];
       //we set the Tooltip just for testing purposes
   }
        
VB.NET Copy Code
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim table1 As New DataTable()

        table1.Columns.Add("ID")
        table1.Columns.Add("ParentID")
        table1.Columns.Add("Roles") ' the column for the custom attributes
        table1.Columns.Add("Text")

        table1.Rows.Add(New String() {"1", Nothing, "1", "Politics"})
        table1.Rows.Add(New String() {"2", Nothing, "1", "Sports"})
        table1.Rows.Add(New String() {"3", Nothing, "3", "Events"})
        table1.Rows.Add(New String() {"4", "1", "4", "CNN"})
        table1.Rows.Add(New String() {"5", "1", "5", "NBC"})
        table1.Rows.Add(New String() {"6", "1", "6", "ABC"})
        table1.Rows.Add(New String() {"7", "2", "7", "US Sports"})
        table1.Rows.Add(New String() {"8", "2", "2", "European Sports"})
        table1.Rows.Add(New String() {"9", "7", "4", "Baseball"})
        table1.Rows.Add(New String() {"10", "7", "3", "Football"})
        table1.Rows.Add(New String() {"11", "7", "2", "Basketball"})
        table1.Rows.Add(New String() {"12", "8", "4", "Soccer"})
        table1.Rows.Add(New String() {"14", "3", "5", "Oscar Awards"})
        table1.Rows.Add(New String() {"15", "3", "2", "MTV Movie Awards"})

        RadMenu1.DataSource = table1
        RadMenu1.DataFieldID = "ID"
        RadMenu1.DataFieldParentID = "ParentID"
        RadMenu1.DataTextField = "Text"
        RadMenu1.DataBind()
    End Sub

    Protected Sub RadMenu1_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.WebControls.RadMenuEventArgs) Handles RadMenu1.ItemDataBound
        Dim dataRow As DataRowView = CType(e.Item.DataItem, DataRowView)
        e.Item.Attributes("Roles") = dataRow("Roles").ToString()
        e.Item.ToolTip = e.Item.Attributes("Roles")
        'we set the Tooltip just for testing purposes
    End Sub

See Also