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ASP.net VB.net Java error on page load

Posted on 2014-02-08
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Last Modified: 2014-02-09
ASP.net VB.net Java error on page load

1

Imports System.Drawing
Imports System.Data.SqlClient

Imports System.Web.UI.DataVisualization.Charting.Series
Imports System.Web.UI.DataVisualization.Charting
Imports System.Web.UI.DataVisualization.Charting.DataPointCustomProperties


Public Class DataVisualization
    Inherits System.Web.UI.Page

    Dim _Separator As String = "."

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then
             oChart
            'oLoad_Web_Layout_Data()
            ' Call Test()
        End If
    End Sub
    Sub oChart()
        ' Initialize the Chart object    
        Dim chart1 As New Chart()
        chart1.ID = "chart1"

        'Add to do code here
        If Not IsPostBack Then
            ' Initialize objects and elements
            Dim chartArea1 As New ChartArea()
            Dim legend1 As New Legend()
            Dim series1 As New Series()
            Dim series2 As New Series()
            Dim series3 As New Series()

            ' Set the Chart Properties
            chart1.Width = 340
            chart1.Height = 340

            chart1.Palette = ChartColorPalette.EarthTones
            chart1.Palette = ChartColorPalette.Fire
            chart1.BackColor = System.Drawing.Color.Gray
            chart1.BorderSkin.SkinStyle = BorderSkinStyle.Emboss

            chart1.BorderLineColor = System.Drawing.Color.Gray
            chart1.BorderlineDashStyle = ChartDashStyle.Solid
            chart1.BorderLineWidth = 4

            ' Set the ChartArea properties
            chartArea1.Name = "Default"
            chartArea1.BackColor = System.Drawing.Color.Gray

            'Enable AJAX features such as zooming and scrolling for the ChartArea
            'chartArea1.CursorX.UserEnabled = True
            'chartArea1.CursorY.UserEnabled = True
          
            ' Add the ChartArea to the Chart
            chart1.ChartAreas.Add(chartArea1)

            ' Set the Legend properties
            legend1.Name = "Default"
            legend1.Docking = Docking.Bottom
            legend1.LegendStyle = LegendStyle.Row
            legend1.Alignment = System.Drawing.StringAlignment.Center

            legend1.BackColor = System.Drawing.Color.Transparent
            legend1.BorderColor = System.Drawing.Color.Black
            legend1.BorderWidth = 1

            ' Add the Legend to the Chart
            chart1.Legends.Add(legend1)

            ' Set the Series properties
            series1.BorderColor = System.Drawing.Color.DarkSlateGray
            series1.Name = "Series1"
            series1.ChartType = SeriesChartType.SplineArea

            series2.BorderColor = System.Drawing.Color.DarkSlateGray
            series2.Name = "Series2"
            series2.ChartType = SeriesChartType.Column

            series3.Name = "Series3"
            series3.BorderWidth = 3
            series3.ChartType = SeriesChartType.Spline

            ' Add the Series to the Chart
            chart1.Series.Add(series1)
            chart1.Series.Add(series2)
            chart1.Series.Add(series3)

            ' Add points to each series.
            Dim rnd As New Random()

            For Each ser As Series In chart1.Series
                For i As Integer = 0 To 12
                    ser.Points.AddY(rnd.[Next](5, 40))
                Next
            Next

            'Preserve the chart's state during callbacks
            'chart1.CallbackStateContent = CallbackStateContent.All
        End If

        ' You MUST add the Chart to a form. By default, form1 is created on aspx pages.
        Me.form1.Controls.Add(chart1)
    End Sub

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Question by:murbro
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CEHJ earned 500 total points
ID: 39844020
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LVL 75

Expert Comment

by:käµfm³d 👽
ID: 39844103
What is your question?
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Author Comment

by:murbro
ID: 39845482
Sorry I thought I had typed a question. I am running the VB.net code shown above and getting a strange error shown in the image. What might cause this
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Author Closing Comment

by:murbro
ID: 39845527
Thanks
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