📄 debugging.aspx
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<%@ Import Namespace="System.Drawing" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Page Language="VB" debug="true" Description="dotnetCHARTING Component" %>
<script runat="server">
Function getRandomData() As SeriesCollection
Dim SC As New SeriesCollection()
Dim myR As New Random()
Dim a As Integer
For a = 1 To 4
Dim s As New Series()
s.Name = "Series " + CStr(a)
Dim b As Integer
For b = 1 To 4
Dim e As New Element()
e.Name = "Element " + CStr(b)
'e.YValue = -25 + myR.Next(50);
e.YValue = myR.Next(50)
s.Elements.Add(e)
Next b
SC.Add(s)
Next a
Return SC
End Function 'getRandomData
Sub Page_Load(sender As [Object], e As EventArgs)
Chart.Type = ChartType.Combo 'Horizontal;
Chart.TempDirectory = "temp"
' Set this property in order to get error messages when the chart has problems:
Chart.Debug = True
' If there is a problem with the data engine, we can also debug it with the following:
' We setup a dataengine object and cause an error.
Dim de As New DataEngine()
de.ConnectionString = "error causing connection string"
de.SqlStatement = "error causing statement"
Dim sc As SeriesCollection = de.GetSeries()
' Now assign the error message to a label on the page.
Label.Text = "DataEngine ErrorMessage: " + de.ErrorMessage
Chart.YAxis.Scale = Scale.Time
' Add the random data.
Chart.SeriesCollection.Add(getRandomData())
End Sub 'Page_Load
</script>
<HTML>
<HEAD>
<TITLE>Debugging Sample</TITLE>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="Chart" runat="server" /><br>
<asp:Label id="Label" runat="server" />
</DIV>
</BODY>
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