Add Combination Chart - VB.NET
Spreadsheet SDK sample in VB.NET demonstrating ‘Add Combination Chart’
Module1.vb
Imports Bytescout.Spreadsheet
Imports Bytescout.Spreadsheet.Charts
Module Module1
    Sub Main()
        ' Create new Spreadsheet object
        Dim spreadsheet As New Spreadsheet()
        spreadsheet.RegistrationName = "demo"
        spreadsheet.RegistrationKey = "demo"
        ' Add new worksheet
        Dim sheet As Worksheet = spreadsheet.Workbook.Worksheets.Add("Sample")
        ' Add few random numbers
        Dim length As Integer = 10
        Dim rnd As New Random()
        For i As Integer = 0 To length - 1
            sheet.Cell(i, 0).Value = rnd.[Next](10)
            sheet.Cell(i, 1).Value = rnd.[Next](10)
        Next
        ' Add charts to worksheet
        Dim columnChart As Chart = sheet.Charts.AddChart(5, 4, ChartType.ColumnClustered)
        columnChart.SeriesCollection.Add(New Series(sheet.Range(0, 0, 9, 0)))
        Dim series As New Series(sheet.Range(0, 1, 9, 1))
        series.ChartType = ChartType.Line
        columnChart.SeriesCollection.Add(series)
        ' Save it as XLS
        spreadsheet.SaveAs("Output.xls")
        ' Close the document
        spreadsheet.Close()
        ' Cleanup
        spreadsheet.Dispose()
        ' Open generated XLS file in default associated application
        Process.Start("Output.xls")
    End Sub
End Module
Resources.Designer.vb
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