LeftItem: Integer;
The LeftItem property returns the first component element under comparison.
Executing the example requires a form with the Button1 button and the DimensionTree component named DimensionTree1. Elements in the second column contain integer values.
Class TestForm: Form
DimensionTree1: DimensionTree;
UiDimension1: UiDimension;
Button1: Button;
AttrInst: IDimAttributeInstance;
Sub DimensionTree1OnCompareItems(Sender: Object; Args: IDimensionViewerCompareEventArgs);
Var
i, j: Integer;
Begin
i := AttrInst.Value(Args.LeftItem);
j := AttrInst.Value(Args.RightItem);
If i > j Then
Args.Compare := -1;
Else
Args.Compare := 1;
End If;
End Sub DimensionTree1OnCompareItems;
Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
Inst: IDimInstance;
Begin
Inst := UiDimension1.DimInstance;
AttrInst := Inst.Attributes.Item(1);
DimensionTree1.SortType := ControlSortType.Custom;
DimensionTree1.SortColumn := 1;
DimensionTree1.Sorted := True;
DimensionTree1.SortDefault;
End Sub Button1OnClick;
End Class TestForm;
After executing the example, on pressing the button, custom sorting by values of the second component column is executed. Values are sorted in descending order.
See also: