TdxListViewInfoTipEvent Type

The hint-related procedural type for list items.

Declaration

TdxListViewInfoTipEvent = procedure(Sender: TdxCustomListView; AItem: TdxListItem; var AInfoTip: string) of object;

Parameters

Name	Type	Description
Sender	TdxCustomListView	The List View control that raised the event.
AItem	TdxListItem	The target list item.
AInfoTip	string	The item hint.

Remarks

The following OnInfoTip event handler displays a string stored in an item’s Data property in the hint:

Delphi

procedure TForm1.dxListViewControl1InfoTip(Sender: TdxCustomListView;
  AItem: TdxListItem; var AInfoTip: string);
begin
  if AItem.Data <> nil then
    try
        AInfoTip := string(AItem.Data^);
    except;
    end;
end;

C++

void __fastcall TForm1::dxListViewControl1InfoTip(TdxCustomListView *Sender,
  TdxListItem *AItem, UnicodeString &AInfoTip)
{
  if (AItem->Data != nullptr)
    try
    {
        AInfoTip = *(UnicodeString *)AItem->Data;
    }
    catch(...)
    {
    }
}

The List View’s OnInfoTip event references the TdxListViewInfoTipEvent type.