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rogerknuettel
#1 Posted : Friday, May 3, 2013 10:36:01 AM(UTC)
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Hallo,

I´m looking for the possibility to bind the data to the chart on server side code.
Not with a ASP.net control but with a dataview or a dataset.

I didn´t find anything which helps me in the docu.

Is it generally possible?

Greetings
Roger
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Ivan
#2 Posted : Friday, May 3, 2013 10:46:59 AM(UTC)
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Hi,

Sure, it is possible. You can download jqChart for ASP.NET Web Forms:

http://www.jqchart.com/Download.aspx

and open the sample under the "samples" folder. It show how to bind jqChart to an ObjectDataSource.

Code:
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="GetData"
        TypeName="SamplesBrowser.Models.ChartData"></asp:ObjectDataSource>
    <jqChart:Chart ID="Chart1" Width="500px" Height="300px" runat="server" DataSourceID="ObjectDataSource1">
        <Title Text="Chart Title"></Title>
        <Animation Enabled="True" Duration="00:00:01" />
        <Axes>
            <jqChart:CategoryAxis Location="Bottom" ZoomEnabled="true">
            </jqChart:CategoryAxis>
        </Axes>
        <Series>
            <jqChart:ColumnSeries XValuesField="Label" YValuesField="Value1" Title="Column">
            </jqChart:ColumnSeries>
            <jqChart:LineSeries XValuesField="Label" YValuesField="Value2" Title="Line">
            </jqChart:LineSeries>
        </Series>
    </jqChart:Chart>


With the same way you can bind the chart to a DataView or DataSet. In this case in the XValuesField and YValuesField you need to set the name of the column in your view.
Best,
Ivan Petrov
jqChart Inc.
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rogerknuettel
#3 Posted : Friday, May 3, 2013 11:24:05 AM(UTC)
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Hi Ivan,

of course I already loaded this example some weeks ago.
I never ask, before trying to find out a solution on my own ;-)

But a Objectdatasource doesn´t help me. I need a binding to a dataview not to a control.

Anything like:

Chart1.DataSource = ViewChart1
Chart1.DataBind()


Is it possible in this why? And if so, how?
I already tried and don´t get any data to the chart.

Thanks in advance.

Greetings Roger
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Ivan
#4 Posted : Friday, May 3, 2013 11:26:41 AM(UTC)
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Is it possible to send us your sample ( support@jqchart.com ), so we can look at it?
Best,
Ivan Petrov
jqChart Inc.
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rogerknuettel
#5 Posted : Friday, May 3, 2013 6:38:05 PM(UTC)
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Hallo Ivan,

I´ll tried to send an example, but got a nondelivery message from your mail address.

So I will post parts of my example here:

Server Side Code
Code:

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim Table1 As New DataTable("Table")
        Dim Column1Table1 As New DataColumn("Tolerance")
        Table1.Columns.Add(Column1Table1)
        Dim Column2Table1 As New DataColumn("Distribution")
        Table1.Columns.Add(Column2Table1)

        Dim NewRowTable1 As DataRow
        For i As Integer = 0 To 1000
            NewRowTable1 = Table1.NewRow()

            NewRowTable1("Tolerance") = i
            NewRowTable1("Distribution") = Sin(i)
            Table1.Rows.Add(NewRowTable1)

        Next
        Table1.AcceptChanges()

        Dim ViewChart1 As New DataView(Table1)
        Chart2.DataSource = ViewChart1
        Chart2.DataBind()

        Dim ChartLinearAxis As JQChart.Web.UI.WebControls.LinearAxis
        ChartLinearAxis = New JQChart.Web.UI.WebControls.LinearAxis
        ChartLinearAxis.Location = JQChart.Web.UI.WebControls.Location.Bottom
        ChartLinearAxis.ZoomEnabled = True
        Chart2.Axes.Add(ChartLinearAxis)

        Dim Item As JQChart.Web.UI.WebControls.LineSeries
        Item = New JQChart.Web.UI.WebControls.LineSeries
        Item.Title = "MyChart"
        Item.XValuesField = "Tolerance"
        Item.YValuesField = "Distribution"
        Item.LineWidth = 1
        Item.Markers.Visible = False
        Item.StrokeStyle = "#006600"

    End Sub

Greetings
Roger
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rogerknuettel
#6 Posted : Tuesday, May 7, 2013 2:16:24 AM(UTC)
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Hallo,

I think it is in everbodies interest, when I post the correct code sample:

Code:

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        ' define the type of the data column
        Dim typeDouble As System.Type = System.Type.GetType("System.Double")

        Dim Table1 As New DataTable("Table")
        Dim Column1Table1 As New DataColumn("Tolerance", typeDouble)
        Table1.Columns.Add(Column1Table1)
        Dim Column2Table1 As New DataColumn("Distribution", typeDouble)
        Table1.Columns.Add(Column2Table1)

        Dim NewRowTable1 As DataRow
        For i As Integer = 0 To 1000
            NewRowTable1 = Table1.NewRow()

            NewRowTable1("Tolerance") = i
            NewRowTable1("Distribution") = Sin(i)
            Table1.Rows.Add(NewRowTable1)

        Next
        Table1.AcceptChanges()

        Dim ViewChart1 As New DataView(Table1)

        Dim ChartLinearAxis As JQChart.Web.UI.WebControls.LinearAxis
        ChartLinearAxis = New JQChart.Web.UI.WebControls.LinearAxis
        ChartLinearAxis.Location = JQChart.Web.UI.WebControls.Location.Bottom
        ChartLinearAxis.ZoomEnabled = True
        Chart2.Axes.Add(ChartLinearAxis)

        Dim Item As JQChart.Web.UI.WebControls.LineSeries
        Item = New JQChart.Web.UI.WebControls.LineSeries
        Item.Title = "MyChart"
        Item.XValuesField = "Tolerance"
        Item.YValuesField = "Distribution"
        Item.LineWidth = 1
        Item.Markers.Visible = False
        Item.StrokeStyle = "#006600"

        ' add the series to the series collection
        Chart2.Series.Add(Item)

        ' should be call at the end
        Chart2.DataSource = ViewChart1
        Chart2.DataBind()


    End Sub



Greetings
Roger
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