找个例子,假设根据某个字段的值来设定该行颜色:procedure TFormMain.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect; DataCol: Integer; Column: TColumn; State: TGridDrawState); begin if dbgrid1.datasource.dataset.FieldByName(’xxx’).asstring > 0 then begin dbgrid1.Canvas.Font.Color:=clred; dbgrid1.Canvas.Brush.color:=clyellow; end else begin dbgrid1.Canvas.Font.Color:=clblue; dbgrid1.Canvas.Brush.color:=clyellow; end; dbgrid1.DefaultDrawColumnCell(rect,datacol,column,state); end;
我的代码是: if qy_detail.recno mod 2=0 then DBGridEh_info.Canvas.Brush.Color:=TColor($FFDFDE) else DBGridEh_info.Canvas.Brush.Color:=TColor($FFC7C6); DBGridEh_info.DefaultDrawColumnCell(Rect,DataCol,Column,State);但是新增一个记录时,颜色就不会隔行显示了,不知该如何解决?
絕對夠酷: *************** procedure TMainForm.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect; DataCol: Integer; Column: TColumn; State: TGridDrawState); var i :integer; begin if gdSelected in State then Exit;//定义表头的字体和背景颜色: for i :=0 to (Sender as TDBGrid).Columns.Count-1 do begin (Sender as TDBGrid).Columns[i].Title.Font.Name :='宋体'; //字体 (Sender as TDBGrid).Columns[i].Title.Font.Size :=9; //字体大小 (Sender as TDBGrid).Columns[i].Title.Font.Color :=$000000ff; //字体颜色(红色) (Sender as TDBGrid).Columns[i].Title.Color :=$0000ff00; //背景色(绿色) end;//隔行改变网格背景色: if Query1.RecNo mod 2 = 0 then (Sender as TDBGrid).Canvas.Brush.Color := clInfoBk //定义背景颜色 else (Sender as TDBGrid).Canvas.Brush.Color := RGB(191, 255, 223); //定义背景颜色//定义网格线的颜色: DBGrid1.DefaultDrawColumnCell(Rect,DataCol,Column,State); with (Sender as TDBGrid).Canvas do //画 cell 的边框 begin Pen.Color := $00ff0000; //定义画笔颜色(蓝色) MoveTo(Rect.Left, Rect.Bottom); //画笔定位 LineTo(Rect.Right, Rect.Bottom); //画蓝色的横线 Pen.Color := $0000ff00; //定义画笔颜色(绿色) MoveTo(Rect.Right, Rect.Top); //画笔定位 LineTo(Rect.Right, Rect.Bottom); //画绿色的竖线 end; end;
DBGrid1.Canvas.Brush.Color := clred;
DBGrid1.Canvas.Font.Color := clblack;(或其它颜色);
DataCol: Integer; Column: TColumn; State: TGridDrawState);
begin
if dbgrid1.datasource.dataset.FieldByName(’xxx’).asstring > 0 then
begin
dbgrid1.Canvas.Font.Color:=clred;
dbgrid1.Canvas.Brush.color:=clyellow;
end else
begin
dbgrid1.Canvas.Font.Color:=clblue;
dbgrid1.Canvas.Brush.color:=clyellow;
end; dbgrid1.DefaultDrawColumnCell(rect,datacol,column,state);
end;
if qy_detail.recno mod 2=0 then
DBGridEh_info.Canvas.Brush.Color:=TColor($FFDFDE)
else
DBGridEh_info.Canvas.Brush.Color:=TColor($FFC7C6);
DBGridEh_info.DefaultDrawColumnCell(Rect,DataCol,Column,State);但是新增一个记录时,颜色就不会隔行显示了,不知该如何解决?
***************
procedure TMainForm.DBGrid1DrawColumnCell(Sender: TObject;
const Rect: TRect; DataCol: Integer; Column: TColumn;
State: TGridDrawState);
var i :integer;
begin
if gdSelected in State then Exit;//定义表头的字体和背景颜色:
for i :=0 to (Sender as TDBGrid).Columns.Count-1 do
begin
(Sender as TDBGrid).Columns[i].Title.Font.Name :='宋体'; //字体
(Sender as TDBGrid).Columns[i].Title.Font.Size :=9; //字体大小
(Sender as TDBGrid).Columns[i].Title.Font.Color :=$000000ff; //字体颜色(红色)
(Sender as TDBGrid).Columns[i].Title.Color :=$0000ff00; //背景色(绿色)
end;//隔行改变网格背景色:
if Query1.RecNo mod 2 = 0 then
(Sender as TDBGrid).Canvas.Brush.Color := clInfoBk //定义背景颜色
else
(Sender as TDBGrid).Canvas.Brush.Color := RGB(191, 255, 223); //定义背景颜色//定义网格线的颜色:
DBGrid1.DefaultDrawColumnCell(Rect,DataCol,Column,State);
with (Sender as TDBGrid).Canvas do //画 cell 的边框
begin
Pen.Color := $00ff0000; //定义画笔颜色(蓝色)
MoveTo(Rect.Left, Rect.Bottom); //画笔定位
LineTo(Rect.Right, Rect.Bottom); //画蓝色的横线
Pen.Color := $0000ff00; //定义画笔颜色(绿色)
MoveTo(Rect.Right, Rect.Top); //画笔定位
LineTo(Rect.Right, Rect.Bottom); //画绿色的竖线
end;
end;