System.Web.UI.WebControls Namespace
Represents the method that will handle the SortCommand event of a DataGrid.
[ VB ]
Public Delegate Sub DataGridSortCommandEventHandler ( _
ByVal src As Object, _
ByVal e As DataGridSortCommandEventArgs _
)
[ C# ]
public delegate void DataGridSortCommandEventHandler (
object src,
DataGridSortCommandEventArgs e
);
[ C++ ]
public __gc __delegate void DataGridSortCommandEventHandler (
Object* src,
DataGridSortCommandEventArgs* e
);
In [ JScript ], you can use the delegates in the .NET Framework, but you cannot define your own.
The declaration of your event handler must have the same parameters as the declaration for the DataGridSortCommandEventHandler delegate.
- src
- The source of the event.
- e
- A DataGridSortCommandEventArgs object that contains the event data.
When you create a DataGridSortCommandEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate.
The following example demonstrates how to code a handler for the SortCommand event of a DataGrid control.
<script language = "C#" runat = "server">
string query = "SELECT CompanyName, ContactName, ... FROM Suppliers";
void Page_Load ( Object src, EventArgs e ) {
if ( !IsPostBack ) {
DataView myView = fetchData ( query, "northwind" ).Tables [ 0 ].DefaultView;
myView.Sort = "companyname";
myGrid.DataSource = myView;
myGrid.DataBind ( );
}
}
void sortGrid ( Object src, DataGridSortCommandEventArgs e ) {
DataView myView = fetchData ( query, "northwind" ).Tables [ 0 ].DefaultView;
myView.Sort = e.SortExpression;
myGrid.DataSource = myView;
myGrid.DataBind ( );
}
</script>
<script language = "VB" runat = "server">
Dim query As String = "SELECT CompanyName, ContactName, ... FROM Suppliers"
Sub Page_Load ( src As Object, e As EventArgs )
If Not IsPostBack Then
Dim myView As DataView = fetchData ( query, "northwind" ).Tables ( 0 ).DefaultView
myView.Sort = "companyname"
myGrid.DataSource = myView
myGrid.DataBind ( )
End If
End Sub
Sub sortGrid ( src As Object, e As DataGridSortCommandEventArgs )
Dim myView As DataView = fetchData ( query, "northwind" ).Tables ( 0 ).DefaultView
myView.Sort = e.SortExpression
myGrid.DataSource = myView
myGrid.DataBind ( )
End Sub
</script> |
| |
C# |
VB |
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DataGridSortCommandEventArgsMembers DataGrid.AllowSorting
