Export Chart from Excel 2007 as Picture file in VB.NET 2005

By: Issac Emailed: 1644 times Printed: 2111 times    

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By: rohit kumar - how this program is work
By: Kirti - Hi..thx for the hadoop in
By: Spijker - I have altered the code a
By: ali mohammed - why we use the java in ne
By: ali mohammed - why we use the java in ne
By: mizhelle - when I exported the data
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By: Suindu De - Suppose we are executing

The following program shows how can Export a Chart from Excel 2007 to Picture file like , BMP , JPG , GIF etc .Before we crate a Chart , we have to fill data in Excel sheet. After enter data your Excel sheet is look like the following picture.

After filling the data, We have to create a chart object in VB.NET and configure the Chart object with necressary data like positions, size, data range, chart type etc.. And use the command for export chart as picture file

The following picture shows the BMP file export from Excel.

Imports Excel = Microsoft.Office.Interop.Excel
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, _
  ByVal e As System.EventArgs) Handles Button1.Click

        Dim xlApp As Excel.Application
        Dim xlWorkBook As Excel.Workbook
        Dim xlWorkSheet As Excel.Worksheet
        Dim misValue As Object = System.Reflection.Missing.Value

        xlApp = New Excel.ApplicationClass
        xlWorkBook = xlApp.Workbooks.Add(misValue)
        xlWorkSheet = xlWorkBook.Sheets("sheet1")

        'add data
        xlWorkSheet.Cells(1, 1) = ""
        xlWorkSheet.Cells(1, 2) = "Issac"
        xlWorkSheet.Cells(1, 3) = "Raja"
        xlWorkSheet.Cells(1, 4) = "Ravi"

        xlWorkSheet.Cells(2, 1) = "Term1"
        xlWorkSheet.Cells(2, 2) = "80"
        xlWorkSheet.Cells(2, 3) = "65"
        xlWorkSheet.Cells(2, 4) = "45"

        xlWorkSheet.Cells(3, 1) = "Term2"
        xlWorkSheet.Cells(3, 2) = "78"
        xlWorkSheet.Cells(3, 3) = "72"
        xlWorkSheet.Cells(3, 4) = "60"

        xlWorkSheet.Cells(4, 1) = "Term3"
        xlWorkSheet.Cells(4, 2) = "82"
        xlWorkSheet.Cells(4, 3) = "80"
        xlWorkSheet.Cells(4, 4) = "65"

        xlWorkSheet.Cells(5, 1) = "Term4"
        xlWorkSheet.Cells(5, 2) = "75"
        xlWorkSheet.Cells(5, 3) = "82"
        xlWorkSheet.Cells(5, 4) = "68"

        'create chart
        Dim chartPage As Excel.Chart
        Dim xlCharts As Excel.ChartObjects
        Dim myChart As Excel.ChartObject
        Dim chartRange As Excel.Range

        xlCharts = xlWorkSheet.ChartObjects
        myChart = xlCharts.Add(10, 80, 300, 250)
        chartPage = myChart.Chart
        chartRange = xlWorkSheet.Range("A1", "d5")
        chartPage.SetSourceData(Source:=chartRange)
        chartPage.ChartType = Excel.XlChartType.xlColumnClustered

        'exporting chart as picture file
        xlWorkSheet.ChartObjects(1).chart.Export(FileName:= _
        "C:\excel_chart_export.bmp", FilterName:="BMP")

        xlWorkSheet.SaveAs("C:\vbexcel.xlsx")
        xlWorkBook.Close()
        xlApp.Quit()

        releaseObject(xlApp)
        releaseObject(xlWorkBook)
        releaseObject(xlWorkSheet)

        MsgBox("Chart File Exported !")
    End Sub

    Private Sub releaseObject(ByVal obj As Object)
        Try
            System.Runtime.InteropServices.Marshal.ReleaseComObject(obj)
            obj = Nothing
        Catch ex As Exception
            obj = Nothing
        Finally
            GC.Collect()
        End Try
    End Sub
End Class

This source code exports a picture to Excel file


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