Telerik.WebControls.RadAjaxManager cause dropw down list not fire handler

Question

I have a front end code look like below

< asp:dropdownlist id="cbo" runat="server" CssClass="combobox" AutoPostBack="True" Width="100%" > < asp:ListItem Selected="True" Value="A">A < asp:ListItem Value="B">B < /asp:dropdownlist>

< rada:RadAjaxManager id="RadAjaxManager1" runat="server"> < AjaxSettings> < rada:AjaxSetting AjaxControlID="cbo"> < UpdatedControls> < rada:AjaxUpdatedControl ControlID="cbo" /> < /UpdatedControls> < /rada:AjaxSetting> < /AjaxSettings> < /rada:RadAjaxManager >

In my code behind, I have the handler for the dropdownlist

Private Sub cbo_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cbo.SelectedIndexChanged

textBox1.text = cbo.selectedvalue End Sub

But the drop down do not fire the handler when it is change. When I remove the telerik radajaxmanager, it will fire. Any one have idea why this will happen. Please help.

Dick Lampard Dick Lampard · Accepted Answer · 2011-04-07T15:39:18

The handler is probably fired, but to set text in the textbox you have to add its ID (textBox1) in the UpdatedControls collection of the ajax manager setting.

Telerik.WebControls.RadAjaxManager cause dropw down list not fire handler

1 Answers