i want to use y axes as datetime and x axes as interger. i used zedgraph control.

i used the following code

Imports ZedGraph
  Public Class Form6
    Dim frames As Integer
    Dim time1 As TimeSpan()
    Public Sub New(ByVal no_frame As Integer, ByVal time() As TimeSpan)
        frames = no_frame
        time1 = time
    End Sub
    Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    End Sub
    Private Sub CreateGraph(ByVal zgc As ZedGraphControl)
        Dim myPane As GraphPane = zgc.GraphPane
        myPane.Title.Text = "Waste of Bandwidth in Stop and Wait Protocol"
        myPane.XAxis.Title.Text = "No of Frames"
        myPane.YAxis.Title.Text = "Time"
        myPane.YAxis.Type = AxisType.Date
        ' Make up some data points from the Sine function
        Dim list = New PointPairList()
        Dim x As Integer
        Dim y(100) As TimeSpan
        For x = 1 To frames
            y(x) = time1(x)
            list.Add(x, y(x))
        Next x
        ' Generate a blue curve with circle symbols, and "My Curve 2" in the legend
        Dim myCurve As LineItem = myPane.AddCurve("My Curve", list, Color.Blue, SymbolType.Circle)
        ' Fill the area under the curve with a white-red gradient at 45 degrees
        myCurve.Line.Fill = New Fill(Color.White, Color.Red, 45.0F)
        ' Make the symbols opaque by filling them with white
        myCurve.Symbol.Fill = New Fill(Color.White)
        ' Fill the axis background with a color gradient
        myPane.Chart.Fill = New Fill(Color.White, Color.LightGoldenrodYellow, 45.0F)
        ' Fill the pane background with a color gradient
        myPane.Fill = New Fill(Color.White, Color.FromArgb(220, 220, 255), 45.0F)
        ' Calculate the Axis Scale Ranges
    End Sub
    Private Sub Form1_Resize(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Resize
    End Sub
    Private Sub SetSize()
        ZedGraphControl1.Location = New Point(10, 10)
        ' Leave a small margin around the outside of the control
        ZedGraphControl1.Size = New Size(ClientRectangle.Width - 20, ClientRectangle.Height - 20)
    End Sub
      End Class

error for the above code

Public Sub Add(x As Double(), y As Double())':

    Argument matching parameter 'x' cannot convert from 'Integer' to 'Double()'.

    Argument matching parameter 'y' cannot convert from 'TimeSpan' to 'Double()'.

'Public Overrides Sub Add(x As Double, y As Double)':

    Argument matching parameter 'y' cannot convert from 'TimeSpan' to 'Double'. 

what is the solution for this ?

i uploaded two images. from that table i want x axes = no of frames means integer and y axes = datetime

Re: How to use DateTime axes in graph or bar chart in vb.net? 80 80

One option you have is to use the TotalDays, TotalHours, TotalMinutes, TotalSeconds, or TotalMilliseconds, depending on which scale you're mainly interested in. Each of these methods returns a Double. There are equivalent From methods that will convert back to a TimeSpan object.

Another option is to use the Ticks property which is a long and can easily be converted to a double.

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