Mega Code Archive
How to Sort a TListView Delphi component
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Title: How to Sort a TListView Delphi component
When you are working with a TListView component and want to sort the items based on a custom criteria, you can use the following idea...
Suppose you have assigned numbers for the TListItem Caption property and need to sort the ListView when displayed in a report-style.
To use custom sorting handle the OnCompare event. If an OnCompare event handler is assigned, AlphaSort method uses that event handler to define the sort order - call AlphaSort to sort the items.
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procedure TForm1.ListView1Compare(
Sender: TObject;
Item1,
Item2: TListItem;
Data: Integer;
var Compare: Integer) ;
var
intItem1,
intItem2: Integer;
begin
intItem1 := StrToInt(Item1.Caption) ;
intItem2 := StrToInt(Item2.Caption) ;
if intItem1
Compare := -1
else
if intItem1 intItem2 then
Compare := 1
else // intItem1 = intItem2
Compare := 0;
end;
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