在运行时以编程方式创建图表和系列时,如何模拟 Series1DblClick 或 Chart1ClickSeries 等事件?
How can I simulate events like Series1DblClick or Chart1ClickSeries when programatically creating Charts and Series on the runtime?
在一个小的 Delphi 程序中,我在运行时以编程方式创建了几个 TCharts 和 TBarSeries,但随后我希望能够单击图表的柱状图并触发,例如,要显示的 Chart1ClickSeries 事件该酒吧的信息。这可能吗??
首先,创建您的事件处理程序:
TForm1 = class...
...
procedure BarSeries1Click(Sender: TChartSeries;
ValueIndex: Integer; Button: TMouseButton; Shift: TShiftState; X,
Y: Integer);
procedure BarSeries1DblClick(Sender: TChartSeries;
ValueIndex: Integer; Button: TMouseButton; Shift: TShiftState; X,
Y: Integer);
...
end;
procedure TForm1.BarSeries1Click(Sender: TChartSeries;
ValueIndex: Integer; Button: TMouseButton; Shift: TShiftState; X,
Y: Integer);
begin
ShowMessage('Click');
end;
procedure TForm1.BarSeries1DblClick(Sender: TChartSeries;
ValueIndex: Integer; Button: TMouseButton; Shift: TShiftState; X,
Y: Integer);
begin
ShowMessage('DblClick');
end;
然后在您创建系列后,分配事件:
BarSeries1.OnClick:=BarSeries1Click;
BarSeries1.OnDblClick:=BarSeries1DblClick;
在一个小的 Delphi 程序中,我在运行时以编程方式创建了几个 TCharts 和 TBarSeries,但随后我希望能够单击图表的柱状图并触发,例如,要显示的 Chart1ClickSeries 事件该酒吧的信息。这可能吗??
首先,创建您的事件处理程序:
TForm1 = class...
...
procedure BarSeries1Click(Sender: TChartSeries;
ValueIndex: Integer; Button: TMouseButton; Shift: TShiftState; X,
Y: Integer);
procedure BarSeries1DblClick(Sender: TChartSeries;
ValueIndex: Integer; Button: TMouseButton; Shift: TShiftState; X,
Y: Integer);
...
end;
procedure TForm1.BarSeries1Click(Sender: TChartSeries;
ValueIndex: Integer; Button: TMouseButton; Shift: TShiftState; X,
Y: Integer);
begin
ShowMessage('Click');
end;
procedure TForm1.BarSeries1DblClick(Sender: TChartSeries;
ValueIndex: Integer; Button: TMouseButton; Shift: TShiftState; X,
Y: Integer);
begin
ShowMessage('DblClick');
end;
然后在您创建系列后,分配事件:
BarSeries1.OnClick:=BarSeries1Click;
BarSeries1.OnDblClick:=BarSeries1DblClick;