Vb.net 如何使图表中的点等于文本框的值?
在我的项目中,我已经创建了一个图表,我希望有和我的文本框中相同数量的点数,我如何才能做到这一点?这是我的密码Vb.net 如何使图表中的点等于文本框的值?,vb.net,visual-studio,charts,mschart,Vb.net,Visual Studio,Charts,Mschart,在我的项目中,我已经创建了一个图表,我希望有和我的文本框中相同数量的点数,我如何才能做到这一点?这是我的密码 Public Class Form1 Dim a As Object Dim b As Object Private Sub Button7_Click(sender As Object, e As EventArgs) Handles Button7.Click Chart1.Anchor = AnchorStyles.Bottom Or Ancho
Public Class Form1
Dim a As Object
Dim b As Object
Private Sub Button7_Click(sender As Object, e As EventArgs) Handles Button7.Click
Chart1.Anchor = AnchorStyles.Bottom Or AnchorStyles.Left Or AnchorStyles.Right Or AnchorStyles.Top
Chart1.ChartAreas(0).AxisX.Maximum = 20
Chart1.ChartAreas(0).AxisY.Maximum = 30
Chart1.ChartAreas(0).AxisX.Minimum = -20
Chart1.ChartAreas(0).AxisY.Minimum = -30
Chart1.ChartAreas(0).AxisY.Interval = 5
Chart1.ChartAreas(0).AxisX.Interval = 5
Chart1.ChartAreas(0).AxisX.Crossing = 0
Chart1.ChartAreas(0).AxisY.Crossing = 0
Chart1.ChartAreas(0).AxisX.LineWidth = 2
Chart1.ChartAreas(0).AxisY.LineWidth = 2
Chart1.ChartAreas(0).AxisY.MajorGrid.LineColor = Color.Black
a = New DataPoint(0, 0)
a.Label = "#VALX : #VALY"
a.MarkerStyle = MarkerStyle.Circle
a.MarkerSize = 5
Chart1.Series(0).Points.Add(a)
End Sub
我希望数据点是这样的
a =(val(textbox1.text),val(textbox2.text))
在下面的示例中,我刚刚创建了一个
文本框的集合
,并在其中循环添加文本框中的x和y坐标
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
Dim Xtbs() As TextBox = {TextBox1, TextBox3, TextBox5}
Dim Ytbs() As TextBox = {TextBox2, TextBox4, TextBox6}
For i As Integer = 0 To Xtbs.Length - 1
Dim x As Double = Xtbs(i).Text
Dim y As Double = Ytbs(i).Text
Dim pt = New DataPoint(x, y)
Chart1.Series(0).Points.Add(pt)
Next
End Sub