Allows the control to be re-rendered after you call the BeginUpdate method and perform the required operations on the client side. This method also forces an immediate control's re-rendering.
The form layout provides the BeginUpdate and the EndUpdate methods that allow you to perform a sequence of operations on the client side and not to render the control after each modification. This improves the control's performance and avoids unnecessary render operations on the client side.
<dx:ASPxFormLayout runat="server" ID="ASPxFormLayout1" ClientInstanceName="fl" > </dx:ASPxFormLayout>