RightRow: Integer;
The RightRow property returns the index of the second string to compare.
Executing the example requires a form with the Button1 button and the DataGrid component named DataGrid1.
Class TestForm: Form
DataGrid1: DataGrid;
Button1: Button;
Rows: IDataGridRows;
Sub DataGrid1OnCompareItems(Sender: Object; Args: IDataGridCompareEventArgs);
Var
s1, s2: String;
Begin
s1 := Rows.Item(Args.LeftRow).ColumnValue(0);
s2 := Rows.Item(Args.RightRow).ColumnValue(0);
If s1.Length > s2.Length Then
Args.Compare := 1;
Elseif s1.Length < s2.Length Then
Args.Compare := -1;
Elseif s1.Length = s2.Length Then
Args.Compare := 0;
End If;
End Sub DataGrid1OnCompareItems;
Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Begin
Rows := DataGrid1.Rows;
DataGrid1.SortType := ControlSortType.Custom;
DataGrid1.EnableSort := True;
DataGrid1.Columns.Item(0).SortIndex := 0;
DataGrid1.Columns.Item(0).SortAscending := False;
End Sub Button1OnClick;
End Class TestForm;
After executing the example, clicking the button starts custom sorting by the values of the first component column. Strings are descending ordered.
See also: