Thanks for Brief answer Mona,

Mona had given good example to use MS Chart which is a part of Office Web
Components on the VB.NET form.
The MS Chart has basic functionality of a displaying the chart. If you are
looking at something fancy then you can use the MS Graph on a WinForm.

All you have to do is,
(1) Add the reference of Microsoft Graph from the Add reference->COM tab
(2) The script will look something like,

       Dim values(,) As Integer = {{1, 2, 3, 4}, _
                                   {4, 5, 6, 7}, _
                                   {7, 8, 9, 10}, _
                                   {10, 11, 12, 14} _
                                  }

       Dim oGraph As New Graph.Global
       Dim oDataSheet As Graph.DataSheet

       oDataSheet = oGraph.Application.DataSheet

       ' Place headers into data table.
       ' Create four column headers.
       oDataSheet.Cells(1, 2).Value = "Col1"
       oDataSheet.Cells(1, 3).Value = "Col2"
       oDataSheet.Cells(1, 4).Value = "Col3"
       oDataSheet.Cells(1, 5).Value = "Col4"
       ' Create four row headers.
       oDataSheet.Cells(2, 1).Value = "Row1"
       oDataSheet.Cells(3, 1).Value = "Row2"
       oDataSheet.Cells(4, 1).Value = "Row3"
       oDataSheet.Cells(5, 1).Value = "Row4"

       ' Get four rows of data.
       Dim lRowCnt, lColCnt As Integer
       For lRowCnt = 2 To 5
           For lColCnt = 2 To 5
               oDataSheet.Cells(lRowCnt, lColCnt).Value = values(lRowCnt -
2, lColCnt - 2)
           Next lColCnt
       Next lRowCnt

       Dim oChart As Graph.Chart
       oChart = oGraph.Application.Chart

       Dim oAxis As Graph.Axis
       oAxis = oChart.Axes(Graph.XlAxisType.xlValue,
Graph.XlAxisGroup.xlPrimary)
       oAxis.CrossesAt = 7

       oChart.Export(FileName:="current_sales.gif", FilterName:="GIF")

       oAxis = Nothing
       oChart = Nothing
       oDataSheet = Nothing

       oGraph.Application.Quit()
       oGraph = Nothing

For more information on Microsoft Graph object model, refer to,
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbagr10/htm
l/grtocobjectmodelapplication.asp

I hope this information helps!

Regards,
Uday Takbhate [MSFT]
Microsoft Developer Support
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