单击图表时如何获得图表的系列名称，图表名称 [英] How to get series name, Chartarea name of chart when chart is clicked

问题描述

我正在使用MS图表堆积的条形图生成甘特图.
我在图表中使用了3个系列.
当我单击任何一个系列生成图表后，它应该提供该系列的信息.
为此，我需要在单击后获得系列名称.

有没有办法获得我点击的系列名称和图表名称.

I am generating Gantt chart using MS chart stacked bar chart.
I am using 3 series in the chart.
After generating the chart when I click on any of the series, it should give the information of the series.
For that I need to get the series name after clicking.

Is there any way to get the series name and chartarea name which I clicked.

推荐答案

我尝试了一下，得到了如下答案

我们需要使用Mouseclick evnet，而不仅仅是clickevnet.

示例:在下面的示例中，我们将获得在clkdGraphSeries中单击的系列名称

受保护的朋友子ProdChart_Click(ByVal发送者为System.Object，ByVal e为MouseEventArgs)处理ProdChart.MouseClick

昏暗的clkdGraphPoint为整数=什么都没有
昏暗的clkdGraphSeries为字符串= Nothing
Dim clkdGraphChartArea As String = Nothing

试试

结果为DataVisualization.Charting.HitTestResult = ProdChart.HitTest(e.X，e.Y)


clkdGraphPoint = result.PointIndex

如果(clkdGraphPoint< 0)那么
App.MsgBox(单击绘制的图"，MsgBoxStyle.Information)
退出子
如果结束

clkdGraphSeries = result.Series.Name

clkdGraphChartArea = result.ChartArea.Name

异常捕获
App.ErrorAdd(Me，ex.Message)
结束尝试

结束子

以同样的热情，您可以获得图表的所有属性.

I tried myself and got the answer as below

We need to use Mouseclick evnet not the just clickevnet.

Example: In below example we will get series name which is clicked in clkdGraphSeries

Protected Friend Sub ProdChart_Click(ByVal sender As System.Object, ByVal e As MouseEventArgs) Handles ProdChart.MouseClick

Dim clkdGraphPoint As Integer = Nothing
Dim clkdGraphSeries As String = Nothing
Dim clkdGraphChartArea As String = Nothing

Try

Dim result As DataVisualization.Charting.HitTestResult = ProdChart.HitTest(e.X, e.Y)


clkdGraphPoint = result.PointIndex

If (clkdGraphPoint < 0) Then
App.MsgBox("Click on the drawn graph", MsgBoxStyle.Information)
Exit Sub
End If

clkdGraphSeries = result.Series.Name

clkdGraphChartArea = result.ChartArea.Name

Catch ex As Exception
App.ErrorAdd(Me,ex.Message)
End Try

End Sub

In the same passion you can get all the properties of the graph.

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