HtmlSelect.EnsureDataBound Method ()
Assembly: System.Web (in System.Web.dll)
When you specify a value for the DataSourceID property, ASP.NET automatically binds the data listing control to the specified data source control. When ASP.NET performs data binding for the control, it calls the method first to verify that the control has not already been data-bound and that a valid data source control that implements the IDataSource interface is specified for its DataSourceID property. The method then calls the DataBind method to ensure that the control is data-bound immediately after the call to this method.
Available since 2.0