[RESOLVED] Persistent data in a Chart and Adding points from front end

[John_SC]

I am building an ASP.net application using VB. that uses a chart. I want to add data from the front end and keep that data that is already in the chart. From my research it appears I need the ChartSerializer, but I can not find any code example.

To try to get this to work, I just added a Chart and a button to WebForm1.aspx

    <asp:Chart ID="Chart1" runat="server">
        <Series>
            <asp:Series Name="Series1">
            </asp:Series>
        </Series>
        <ChartAreas>
            <asp:ChartArea Name="ChartArea1">
            </asp:ChartArea>
        </ChartAreas>
    </asp:Chart>
    <asp:Button ID="Button3" runat="server" Text="Button" />

In WebForm1.aspx.vb I have coe for a button that adds three records to the graph

    Protected Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
        Chart1.Series(0).Points.Add(125)
        Chart1.Series(0).Points.Add(300)
        Chart1.Series(0).Points.Add(400)
    End Sub

What I want is that every time I click Button3, I want to add three more bars on the graph. What happens now is the chart appears to be recreated, and no matter how many times I hit the button, I only have 3 bars.

What I have tried is to define a public variable to hold the data, add the data to this variable, and then set the Chart.Series(0) equal to that variable. For example

Declare a public class variable in WebForm1.aspx.vb

public s0 as New Series

Then in WebForm1.aspx.vb

   Protected Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
        ss0.Points.Add(250)
        Chart1.Series(0) = ss0
end sub

The data is not persistent. I end up having only one column in my chart.

Any Idea as to how I can get the data to be persistent?