Delphi7中Listview的常用功能汇总

//设置颜色
procedure TForm1.ListView1CustomDrawItem(Sender: TCustomListView;
Item: TListItem; State: TCustomDrawState; var DefaultDraw: Boolean);
var
subRect, itemRect: TRect;
i, SubItem: Integer;
begin
DefaultDraw := False;
if Item.Selected then begin
Sender.Canvas.Font.Color := clRed; //选中行字体颜色
Sender.Canvas.Brush.Color := clgray; //clGreen; 选中行高亮颜色
end else begin
Sender.Canvas.Font.Color := clNavy; //正常行字体颜色
Sender.Canvas.Brush.Color := clWhite; //正常行高亮颜色
end;
itemRect := Item.DisplayRect(drLabel);
subRect := itemRect;
for SubItem := 0 to (Sender as TListView).Columns.Count - 1 do
begin
subRect.Left := itemRect.Left;
for i := 1 to SubItem do
begin
subRect.Left := subRect.Left + (Sender as TListView).Column[i - 1].Width;
subRect.Right := subRect.Right + SubRect.Left + (Sender as TListView).Column[i].Width;
end;
if SubItem = 0 then
begin
subRect.Right := subRect.Right + 2;
Sender.Canvas.TextRect(subRect, subRect.Left, subRect.Top, Item.Caption);
end else
Sender.Canvas.TextRect(subRect, subRect.Left, subRect.Top, Item.SubItems[SubItem - 1]);
end;
end;

//排序功能
private
{ Private declarations }
SortCol: Integer;
SortWay: Integer;
procedure TForm1.ListView1ColumnClick(Sender: TObject;
Column: TListColumn);
begin
SortCol := Column.Index;
if (SortWay = 1) then SortWay := -1 else SortWay := 1;
(Sender as TCustomListView).AlphaSort;
end;
procedure TForm1.ListView1Compare(Sender: TObject; Item1, Item2: TListItem;
Data: Integer; var Compare: Integer);
var
t: Integer;
begin
if (SortCol = 0) then
begin
Compare := SortWay * CompareText(Item1.Caption, Item2.Caption);
end else
begin
t := SortCol - 1;
Compare := SortWay * CompareText(Item1.SubItems[t], Item2.SubItems[t]);
end;
end;