SqlDataSourceView.OnSelecting(SqlDataSourceSelectingEventArgs) Method
Definition
Important
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Raises the Selecting event before the SqlDataSource control attempts a data retrieval operation.
protected:
virtual void OnSelecting(System::Web::UI::WebControls::SqlDataSourceSelectingEventArgs ^ e);protected virtual void OnSelecting (System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs e);abstract member OnSelecting : System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs -> unit
override this.OnSelecting : System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs -> unitProtected Overridable Sub OnSelecting (e As SqlDataSourceSelectingEventArgs)Parameters
A SqlDataSourceSelectingEventArgs that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate. For more information about how to handle events, see Handling and Raising 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 Inheritors
When overriding the OnSelecting(SqlDataSourceSelectingEventArgs) method in a derived class, be sure to call the OnSelecting(SqlDataSourceSelectingEventArgs) method for the base class so that registered delegates receive the event.
