SqlDataSourceView.OnSelecting Method
Raises the Selecting event before the SqlDataSource control attempts a data retrieval operation.
Namespace: System.Web.UI.WebControls
Assembly: System.Web (in System.Web.dll)
'Declaration Protected Overridable Sub OnSelecting ( _ e As SqlDataSourceSelectingEventArgs _ )
Parameters
- e
- Type: System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs
A SqlDataSourceSelectingEventArgs that contains the event data.
Raising an event invokes the event handler through a delegate. For more information, see Consuming Events.
The OnSelecting method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to InheritorsWhen overriding the OnSelecting method in a derived class, be sure to call the OnSelecting method for the base class so that registered delegates receive the event.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.