Nat*_*Nat 11
使用OnBeforeCellPaint事件:
procedure TForm1.VirtualStringTree1BeforeCellPaint(Sender: TBaseVirtualTree;
TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex;
CellPaintMode: TVTCellPaintMode; CellRect: TRect; var ContentRect: TRect);
begin
if Node.Index mod 2 = 0 then
begin
TargetCanvas.Brush.Color := clFuchsia;
TargetCanvas.FillRect(CellRect);
end;
end;
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这将更改每隔一行的背景(如果行位于同一级别).
要控制特定行中文本的颜色,请使用OnPaintText事件并设置TargetCanvas.Font.Color.
procedure TForm.TreePaintText(Sender: TBaseVirtualTree; const TargetCanvas:
TCanvas; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType);
var
YourRecord: PYourRecord;
begin
YourRecord := Sender.GetNodeData(Node);
// an example for checking the content of a specific record field
if YourRecord.Text = 'SampleText' then
TargetCanvas.Font.Color := clRed;
end;
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请注意,为TreeView中的每个单元调用此方法.节点指针在一行的每个单元格中是相同的.因此,如果您有多个列并且想要根据特定列的内容设置整行的颜色,则可以使用给定的节点,如示例代码中所示.