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CustomDraw in  ListView

Posted on 2002-07-21
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Last Modified: 2007-11-27
I use ListView. The viewstyle property is set to vsReport.
The data displated on Listview may like:

Item    Qty    Amt     Status      Desc
1011    100    20.00      S        abcdef
1022     20    100.00     D        dahfdsf

I want to customizing the appearance of data according to the data value. For example, if Status is 'S', I may display it as 'In Stock' rather than 'S', and also able to change its font and the background color. If possible I would like change item's font, backgroud color, and text as well depends Status' value.

How can I do these?


Thank u very much.

peter
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Question by:petershaw9
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1 Comment
 
LVL 3

Accepted Solution

by:
Slavak earned 400 total points
ID: 7167916
just place the code to OnCustomDrawSubItem event:

example:

procedure TForm1.ListView1CustomDrawSubItem(Sender: TCustomListView;
  Item: TListItem; SubItem: Integer; State: TCustomDrawState;
  var DefaultDraw: Boolean);

Var
  S     : String;
  R     : TRect;
  C     : TColor;
  I     : Integer;

begin
 DefaultDraw := (SubItem - 1) <> 2;
 If DefaultDraw Then
   Exit;

 With TListView(Sender) Do Begin
   Case Item.SubItems[SubItem - 1][1] of
     'S' : Begin
             S := 'In stock';
             C := clGreen;
           End;
     'D' : Begin
             S := 'Not in stock';
             C := clRed;
           End;
     Else Begin
       S := Item.SubItems[SubItem];
       C := clBlack;
     End;
   End;

   R.Left := 0;
   For I := 0 To SubItem - 1 Do
     R.Left := R.Left + Columns[I].Width;

   R.Right  := R.Left + Columns[SubItem - 1].Width;
   R.Top    := Item.Top;
   R.Bottom := R.Top + 20;

   Canvas.Font.Color := C;
   Canvas.TextOut(R.Left, R.Top, S);
 End;
end;


But, if you can, prefered to place right string already in the SubItems, so the function can be much more clear.

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