List Box and the update panel

I would like to know the event name to use when an ASP List Box is used with the update panel control. I would like the updatePanel to fire when the ListBox Selected Index Changed event occurs.

Thank You for any help

George

<asp:ListBoxID="ListBox1"runat="server"DataSourceID="AccessDataSource1"DataTextField="product_name"DataValueField="product_id"Rows="30"CausesValidation="True"></asp:ListBox>

<asp:AccessDataSourceID="AccessDataSource1"runat="server"DataFile="~/App_Data/test.mdb"SelectCommand="SELECT [product_id], [product_name] FROM [Products]"></asp:AccessDataSource>

<asp:ButtonID="Button1"runat="server"Text="Button"/>

<atlas:UpdatePanelID="up222"Mode="Conditional"runat="server">

<Triggers>

<atlas:ControlEventTriggerControlID="ListBox1"EventName="SelectedIndexChanged"/> <!-- DOES NOT FIRE -->

<atlas:ControlEventTriggerControlID="Button1"EventName="Click"/>

</Triggers>

<ContentTemplate>

<asp:LabelID="Label2"runat="server"Text="Labe354"></asp:Label>

</ContentTemplate>

</atlas:UpdatePanel>

You have everything exactly right, though it might not actually be what you want. Every time the SelectedIndexChanged event is raised, or the button is clicked, the UpdatePanel will be updated. However, to get any of that to happen, a postback must occur. In your sample page, the only way to get that to happen is to click the button. To make the page update immediately when the list selection changes, add this property to your ListBox: AutoPostBack="true"

Thanks,

Eilon

ListSearch doesnt work with Dropdownlist AutoPostBack

ListSearch works fine finding a specific item on a dropdownlist, but doesn't fire an AutoPostBack event when I tab over (or tab out).

I found this 3rd party add-on control that does exactly what I'm looking for, but was wondering if there's a similar dropdownlist available from Microsoft.

Check out the "Contact Information" section.

http://samples.asplib.net/AspLibSamples/ComboBox.aspx

Also, any easy way to display the prompt text "left" of the dropdownlist. Apparently, there are only two options: top or bottom.

Thanks.

Hi,

You can use the following code to force a postback when the dropdownlist losts focus.

string script = ClientScript.GetPostBackEventReference(DropDownList1, "");
DropDownList1.Attributes.Add("onblur", script);

Hope this helps.

That did the trick! Thanks!!