Vb.net datagtid控制将值传递给图表

问题描述

我有一项关于将datagird值传递给devexpress chartcontrol的研究。我的gridcontrol中有X和Y值。（它可以有不同的行数）由于点数不同，我想用于下一个循环。（需要在最后一个值后停止）有时我有5个值，有时是8， 12，...等。我使用下面的代码，但没有实现，也许有不同的代码。



我尝试过：

I have a study about passing datagird values to devexpress chartcontrol. I have X and Y values in my gridcontrol.(It can have different row count) I would like to use for next loop due to different point counts.(needs to stop after last value) Sometimes I have 5 values, sometimes 8, ,12,..etc. I use code below, but not achived , maybe there is a differet code.

What I have tried:

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

       Dim i As Integer

       For i = 0 To DataGridView1.Rows.Count - 1

           ChartControl1.Series("Series 1").Points.Add(New SeriesPoint(DataGridView1.Item(0, i).Value, DataGridView1.Item(1, i).Value))
       Next

   End Sub

推荐答案

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

    Dim i As Integer

    For i = 0 To DataGridView1.Rows.Count - 1
        If i <> DataGridView1.NewRowIndex Then
            ChartControl1.Series("Series 1").Points.Add(New SeriesPoint(DataGridView1.Item(0, i).Value, DataGridView1.Item(1, i).Value))
        End If
    Next

End Sub

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