hi, I am using asp.net2.0.How to create a xtrachart in runtime.help me..

Hello,

Sorry that we're still of no help in preparing an example for you. I may prepare one. Please, tell me what language you are using (C# or VB)?

Also note that this newsgroup is peer-to-peer. If you want to get an official 24-hour answer from our Support Team, it's always better to write to them directly at http://www.devexpress.com/sc.

HI, I am using vb.

Hi,

First add the DevExpress.Utils, DevExpress.XtraCharts and DevExpress.XtraCharts.UI assemblies to the References list of your project, and then use the following code or similar:

Imports System
Imports System.Data
Imports DevExpress.XtraCharts
' ...

Partial Public Class _Default
    Inherits System.Web.UI.Page

    Private Function CreateChartData(ByVal rowCount As Integer) As DataTable
        ' Create an empty table.
        Dim Table As New DataTable("Table1")

        ' Add two columns to the table.
        Table.Columns.Add("Argument", GetType(Int32))
        Table.Columns.Add("Value", GetType(Int32))

        ' Add data rows to the table.
        Dim Rnd As New Random()
        Dim Row As DataRow = Nothing
        Dim i As Integer
        For i = 0 To rowCount - 1
            Row = Table.NewRow()
            Row("Argument") = i
            Row("Value") = Rnd.Next(100)
            Table.Rows.Add(Row)
        Next i

        Return Table
    End Function

    Protected Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Me.Load
        ' Create a chart.
        Dim Chart As New WebChartControl()
        Chart.Height = 400
        Chart.Width = 600

        ' Create an empty Pie series and add it to the chart.
        Dim Series As New Series("Series1", ViewType.Pie)
        Chart.Series.Add(Series)

        ' Generate a data table and bind the series to it.
        Series.DataSource = CreateChartData(30)

        ' Specify data members to bind the series.
        Series.ArgumentScaleType = ScaleType.Numerical
        Series.ArgumentDataMember = "Argument"
        Series.ValueScaleType = ScaleType.Numerical
        Series.ValueDataMembers.AddRange(New String() {"Value"})

        Me.Controls.Add(Chart)
    End Sub
End Class

Does this help you?

HI, If i give dim chart as new webchartcontrol() in page_load event it says webcontrolchart() is not there.Is there any alternate declaration.

karuna jo:

it says webcontrolchart() is not there

 

Sorry, what particular error are you getting? Also, what XtraCharts version are you using?

Probably, you could send your project to our Support Team at http://www.devexpress.com/sc, so that we can replicate your problem locally and help you?

Hi Alan.

I've a question, how can i rotate the chart ex. Bars or Lines from horizontal to vertical ?

Hi Ernesto,

To rotate a chart you need to set the ChartControl.Diagram.Rotated property to True.

At runtime it can be done as follows:
C#: ((DevExpress.XtraCharts.XYDiagram)chartControl1.Diagram).Rotated = true;
VB: CType(chartControl1.Diagram, DevExpress.XtraCharts.XYDiagram).Rotated = True