Working with excel

**manhit45** · Jun 14th, 2009, 02:17 AM

Hi everybody, i know this is easy with many people. but i want post it because someone who is beginner with excel will search in my signature conveniently.

If version excel is 2003 then change xlsx -> xls.

Create an Excel 2007 file in VB.NET 2005

Code:

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")
        xlWorkSheet.Cells(1, 1) = "http://vb.net-informations.com"
        xlWorkSheet.SaveAs("C:\vbexcel.xlsx")

        xlWorkBook.Close()
        xlApp.Quit()

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

        MsgBox("Excel file created , you can find the file c:\")
    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

**manhit45** · Jun 14th, 2009, 02:18 AM

Open and Edit Cells in an Excel 2007 file in VB.NET

Code:

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

        xlApp = New Excel.ApplicationClass
        xlWorkBook = xlApp.Workbooks.Open("c:\test1.xlsx")
        xlWorkSheet = xlWorkBook.Worksheets("sheet1")
        'display the cells value B2
        MsgBox(xlWorkSheet.Cells(2, 2).value)
        'edit the cell with new value
        xlWorkSheet.Cells(2, 2) = "http://vb.net-informations.com"
        xlWorkBook.Close()
        xlApp.Quit()

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

    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

**manhit45** · Jun 14th, 2009, 02:18 AM

Read entire worksheet in an Excel workbook

Code:

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 range As Excel.Range
        Dim rCnt As Integer
        Dim cCnt As Integer
        Dim Obj As Object

        xlApp = New Excel.ApplicationClass
        xlWorkBook = xlApp.Workbooks.Open("c:\vbexcel.xlsx")
        xlWorkSheet = xlWorkBook.Worksheets("sheet1")

        range = xlWorkSheet.UsedRange

        For rCnt = 1 To range.Rows.Count
            For cCnt = 1 To range.Columns.Count
                Obj = CType(range.Cells(rCnt, cCnt), Excel.Range)
                MsgBox(Obj.value)
            Next
        Next

        xlWorkBook.Close()
        xlApp.Quit()

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

**manhit45** · Jun 14th, 2009, 02:19 AM

Format Excel 2007 Page in VB.NET

Code:

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
        Dim chartRange As Excel.Range

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

        'add data
        xlWorkSheet.Cells(4, 2) = ""
        xlWorkSheet.Cells(4, 3) = "Student1"
        xlWorkSheet.Cells(4, 4) = "Student2"
        xlWorkSheet.Cells(4, 5) = "Student3"

        xlWorkSheet.Cells(5, 2) = "Term1"
        xlWorkSheet.Cells(5, 3) = "80"
        xlWorkSheet.Cells(5, 4) = "65"
        xlWorkSheet.Cells(5, 5) = "45"

        xlWorkSheet.Cells(6, 2) = "Term2"
        xlWorkSheet.Cells(6, 3) = "78"
        xlWorkSheet.Cells(6, 4) = "72"
        xlWorkSheet.Cells(6, 5) = "60"

        xlWorkSheet.Cells(7, 2) = "Term3"
        xlWorkSheet.Cells(7, 3) = "82"
        xlWorkSheet.Cells(7, 4) = "80"
        xlWorkSheet.Cells(7, 5) = "65"

        xlWorkSheet.Cells(8, 2) = "Term4"
        xlWorkSheet.Cells(8, 3) = "75"
        xlWorkSheet.Cells(8, 4) = "82"
        xlWorkSheet.Cells(8, 5) = "68"

        xlWorkSheet.Cells(9, 2) = "Total"
        xlWorkSheet.Cells(9, 3) = "315"
        xlWorkSheet.Cells(9, 4) = "299"
        xlWorkSheet.Cells(9, 5) = "238"

        chartRange = xlWorkSheet.Range("b2", "e3")
        chartRange.Merge()
        chartRange.FormulaR1C1 = "MARK LIST"
        chartRange.HorizontalAlignment = 3
        chartRange.VerticalAlignment = 3

        chartRange = xlWorkSheet.Range("b4", "e4")
        chartRange.Font.Bold = True
        chartRange = xlWorkSheet.Range("b9", "e9")
        chartRange.Font.Bold = True

        chartRange = xlWorkSheet.Range("b2", "e9")
        chartRange.BorderAround(Excel.XlLineStyle.xlContinuous, _
        Excel.XlBorderWeight.xlMedium, Excel.XlColorIndex. _
		xlColorIndexAutomatic,Excel.XlColorIndex.xlColorIndexAutomatic)

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

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

        MsgBox("File created !")
    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

**manhit45** · Jun 14th, 2009, 02:20 AM

Insert Pictures in Excel 2007 from VB.NET 2005

Code:

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 some text
        xlWorkSheet.Cells(1, 1) = "http://vb.net-informations.com"
        xlWorkSheet.Cells(2, 1) = "Adding picture in Excel File"

        'replace you picture to xl_pic.JPG

        xlWorkSheet.Shapes.AddPicture("C:\xl_pic.JPG", _
             Microsoft.Office.Core.MsoTriState.msoFalse, _
             Microsoft.Office.Core.MsoTriState.msoCTrue, 50, 50, 300, 45)

        xlWorkSheet.SaveAs("C:\vbexcel.xlsx")

        xlWorkBook.Close()
        xlApp.Quit()

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

        MsgBox("Excel file created , you can find the file c:\")
    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

**manhit45** · Jun 14th, 2009, 02:22 AM

Insert Background Pictures in Excel 2007 from VB.NET

Code:

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")

        'set back ground
        'replace your background picture to xl_pic.JPG
        xlWorkSheet.SetBackgroundPicture("C:\xl_pic.JPG")

        xlWorkSheet.SaveAs("C:\vbexcel.xlsx")

        xlWorkBook.Close()
        xlApp.Quit()

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

        MsgBox("Excel file created , you can find the file c:\")
    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

**manhit45** · Jun 14th, 2009, 02:23 AM

How to export from database to excel

Code:

Imports System.Data
Imports System.Data.SqlClient
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 cnn As SqlConnection
        Dim connectionString As String
        Dim sql As String
        Dim i, j As Integer

        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")

        connectionString = "data source=servername;" & _
        "initial catalog=databasename;user id=username;password=password;"
        cnn = New SqlConnection(connectionString)
        cnn.Open()
        sql = "SELECT * FROM Product"
        Dim dscmd As New SqlDataAdapter(sql, cnn)
        Dim ds As New DataSet
        dscmd.Fill(ds)

        For i = 0 To ds.Tables(0).Rows.Count - 1
            For j = 0 To ds.Tables(0).Columns.Count - 1
                xlWorkSheet.Cells(i + 1, j + 1) = _
                ds.Tables(0).Rows(i).Item(j)
            Next
        Next

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

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

        cnn.Close()

        MsgBox("You can find the file C:\vbexcel.xlsx")
    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

**manhit45** · Jun 14th, 2009, 02:24 AM

How to export from DataGridView to excel

Code:

Imports System.Data
Imports System.Data.SqlClient
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 cnn As SqlConnection
        Dim connectionString As String
        Dim sql As String

        connectionString = "data source=servername;" & _
        "initial catalog=databasename;user id=username;password=password;"
        cnn = New SqlConnection(connectionString)
        cnn.Open()
        sql = "SELECT * FROM Product"
        Dim dscmd As New SqlDataAdapter(sql, cnn)
        Dim ds As New DataSet
        dscmd.Fill(ds)
        DataGridView1.DataSource = ds.Tables(0)
        cnn.Close()
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button2.Click


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

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

        For i = 0 To DataGridView1.RowCount - 2
            For j = 0 To DataGridView1.ColumnCount - 1
                xlWorkSheet.Cells(i + 1, j + 1) = _
                    DataGridView1(j, i).Value.ToString()
            Next
        Next

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

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

        MsgBox("You can find the file C:\vbexcel.xlsx")
    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

**gautamshaw** · Jan 19th, 2010, 12:22 AM

hi manhit,

i want to start learning accessing the excel using the vb.net and i have no idea of how to start.....please suggest how to start

**gautamshaw** · Jan 19th, 2010, 01:38 AM

though your code works but i cant get proper explanation of each and every line......

even i did not get it here also:

"http://vb.net-informations.com"

please help

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