Enable a RadTextbox from RadCombox

[Ebenezer]

I have a RadCombox bound to sql datasource with some dropdown items. There is one column called "Other". I want when users select the other, it enable a corresponding RadTextbox so they can input an item and on save button click the item get save to the other column in the database. Any example?

[Princy]

Hello,

Please have a look into the following sample code.

ASPX:

<telerik:RadComboBox ID="RadComboBox1" runat="server" DataSourceID="SqlDataSource1"
    OnClientSelectedIndexChanged="OnClientSelectedIndexChanged" DataTextField="ContactName">
    <DefaultItem runat="server" Text="Select" />
</telerik:RadComboBox>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
    SelectCommand="select ContactName from [Customers]"></asp:SqlDataSource>
<telerik:RadTextBox ID="RadTextBox1" runat="server" Style="margin-left:50px; visibility:hidden;">
</telerik:RadTextBox>

JavaScript:

<script type="text/javascript">
    function OnClientSelectedIndexChanged(sender, args) {
        var textbox = $find("<%= RadTextBox1.ClientID %>");
        if (args._item._text == "Other") {
            textbox._element.style.visibility = "visible";
        }
        else {
            textbox._element.style.visibility = "hidden";
        }
    }
</script>

Then on the server side click event of a RadButton you can save the text in database and hide the RadTextBox.

Thanks,
Princy.

[Ebenezer]

Hi Princy
Thanks. But at the same time I am getting 'Telerik.Web.UI.RadComboBox' does not have a public proprty named 'DefaultItem'

[Princy]

Hello,

The DefaultItem property of RadComboBox was introduced in the Q3 2012 release (version 2012.3.1016). Since you are getting Telerik.Web.UI.RadComboBox' does not have a public proprty named 'DefaultItem' error message, I think you are having a older version of DLL which does not have this feature. Check the version and try upgrading to the latest release of RadControls.

Thanks,
Princy.

[Ebenezer]

Thanks very much