UpdatePanel Web Server Control Declarative Syntax
Enables sections of the page to be partially rendered without a postback.
<asp:UpdatePanel
ChildrenAsTriggers="True|False"
EnableTheming="True|False"
EnableViewState="True|False"
ID="string"
OnDataBinding="DataBinding event handler"
OnDisposed="Disposed event handler"
OnInit="Init event handler"
OnLoad="Load event handler"
OnPreRender="PreRender event handler"
OnUnload="Unload event handler"
RenderMode="Block|Inline"
runat="server"
SkinID="string"
UpdateMode="Always|Conditional"
Visible="True|False"
>
<ContentTemplate>
<!-- child controls -->
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger
ControlID="string"
EventName="string"
/>
<asp:PostBackTrigger
ControlID="string"
/>
</Triggers>
</asp:UpdatePanel>
Remarks
For more information, see the UpdatePanel class overview.