本人通過TTreeView的OnCustomDrawItem事件改變每一個Node的Font的Color,代碼如下
procedure TForm1.TreeView1CustomDrawItem(Sender: TCustomTreeView;
Node: TTreeNode; State: TCustomDrawState; var DefaultDraw: Boolean);
begin
case StrToInt(Node.Text) of
1:Sender.Canvas.Font.Color := clRed;
11:Sender.Canvas.Font.Color := clBlue;
12:Sender.Canvas.Font.Color := clBlue;
2:Sender.Canvas.Font.Color := clRed;
21:Sender.Canvas.Font.Color := clBlue;
22:Sender.Canvas.Font.Color := clBlue;
end;
end;
編譯運行后,表面看上一切安好,Node上Font的Color已變,
如果你不停的在不同的Node上點來點去,我發現我的系統資源急劇下降,
最后系統崩潰,由80%->78->->少于5%->崩潰,你遇到過嗎???我被這個Bug害死了!!
procedure TForm1.TreeView1CustomDrawItem(Sender: TCustomTreeView;
Node: TTreeNode; State: TCustomDrawState; var DefaultDraw: Boolean);
begin
case StrToInt(Node.Text) of
1:Sender.Canvas.Font.Color := clRed;
11:Sender.Canvas.Font.Color := clBlue;
12:Sender.Canvas.Font.Color := clBlue;
2:Sender.Canvas.Font.Color := clRed;
21:Sender.Canvas.Font.Color := clBlue;
22:Sender.Canvas.Font.Color := clBlue;
end;
end;
編譯運行后,表面看上一切安好,Node上Font的Color已變,
如果你不停的在不同的Node上點來點去,我發現我的系統資源急劇下降,
最后系統崩潰,由80%->78->->少于5%->崩潰,你遇到過嗎???我被這個Bug害死了!!
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货