I have a RadComboBox on a page. How do I initiate it without any items being selected?
The following box contains two items, I have tried to use both ClearSelection() and SelectedIndex = -1, without any luck.
It still looks like this (having its first item selected).
RadComboBoxTest.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="RadComboBoxTest.aspx.cs"
Inherits="Foo.Bar.RadComboBoxTest" %>
<!DOCTYPE html>
<html>
<head runat="server">
<title>test</title>
</head>
<body>
<form runat="server">
<asp:ScriptManager runat="server"/>
<div>
Items:<br/>
<telerik:RadComboBox ID="cmbTest" DataValueField="id"
DataTextField="name" runat="server"/>
</div>
</form>
</body>
</html>
RadComboBoxTest.aspx.cs
using System;
{
namespace Foo.Bar
{
public partial class RadComboBoxTest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
cmbTest.DataSource = new object[]
{
new { id = 23, name = "twentythree"},
new { id = 24, name = "twentyfour"}
};
cmbTest.DataBind();
cmbTest.ClearSelection();
}
}
}
}
Have you tried creating a new object, with the id of 0, and name = empty string (" "), and setting the default value to 0
Note: Comment below with Telerik link explains this much better