DataBoundControl.CreateDataSourceSelectArguments Method
Definition
Important
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Creates a default DataSourceSelectArguments object used by the data-bound control if no arguments are specified.
protected:
virtual System::Web::UI::DataSourceSelectArguments ^ CreateDataSourceSelectArguments();protected virtual System.Web.UI.DataSourceSelectArguments CreateDataSourceSelectArguments ();abstract member CreateDataSourceSelectArguments : unit -> System.Web.UI.DataSourceSelectArguments
override this.CreateDataSourceSelectArguments : unit -> System.Web.UI.DataSourceSelectArgumentsProtected Overridable Function CreateDataSourceSelectArguments () As DataSourceSelectArgumentsReturns
A DataSourceSelectArguments initialized to Empty.
Examples
The following code example demonstrates how the CreateDataSourceSelectArguments method can be used in a derived class to retrieve a default DataSourceSelectArguments object.
protected override void PerformSelect() {
// Call OnDataBinding here if bound to a data source using the
// DataSource property (instead of a DataSourceID), because the
// databinding statement is evaluated before the call to GetData.
if (!IsBoundUsingDataSourceID) {
OnDataBinding(EventArgs.Empty);
}
// The GetData method retrieves the DataSourceView object from
// the IDataSource associated with the data-bound control.
GetData().Select(CreateDataSourceSelectArguments(),
OnDataSourceViewSelectCallback);
// The PerformDataBinding method has completed.
RequiresDataBinding = false;
MarkAsDataBound();
// Raise the DataBound event.
OnDataBound(EventArgs.Empty);
}
Protected Overrides Sub PerformSelect()
' Call OnDataBinding here if bound to a data source using the
' DataSource property (instead of a DataSourceID) because the
' data-binding statement is evaluated before the call to GetData.
If Not IsBoundUsingDataSourceID Then
OnDataBinding(EventArgs.Empty)
End If
' The GetData method retrieves the DataSourceView object from the
' IDataSource associated with the data-bound control.
GetData().Select(CreateDataSourceSelectArguments(), _
AddressOf OnDataSourceViewSelectCallback)
' The PerformDataBinding method has completed.
RequiresDataBinding = False
MarkAsDataBound()
' Raise the DataBound event.
OnDataBound(EventArgs.Empty)
End Sub
Remarks
The CreateDataSourceSelectArguments method is used by the SelectArguments property to initialize a default arguments object, and by the DataBoundControl class's implementation of the PerformSelect method.
