I have a datagrtidview.
I created a button "Export datagridview to Excel"
Below is the code for the export:
Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.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.Application
xlWorkBook = xlApp.Workbooks.Add(misValue)
xlWorkSheet = xlWorkBook.Sheets("Sheet1")
xlWorkSheet.SaveAs("C:\Masterlist.xlsx")
xlWorkBook.Close()
xlApp.Quit()
releaseObject(xlApp)
releaseObject(xlWorkBook)
releaseObject(xlWorkSheet)
MsgBox("You can find the file in C:\Masterlist.xlsx")
End Sub
I have also included reference: Microsoft.Office.Interop.Excel
However when I finished my project as an application, I install my application on other computer and this happens when I click on "Export to Excel" button:
https://i.stack.imgur.com/F45Q5.png
What code that can disable read-only?
Or any code here that makes this error appears?
Thanks!
Related
I am getting an error Object reference not set to an instance of an object when I write the following code in the line owb = oxl.Workbooks.Open("G:\NTPC.xlsx"). There is no problem with the file and it indeed exists in the G drive of my pc. Pls tell where I am going wrong?
Imports System
Imports Microsoft.Office.Interop
Module Program
Dim oxl As Excel.Application
Dim owbs As Excel.Workbooks
Dim owb As Excel.Workbook
Dim osheets As Excel.Worksheets
Dim osheet As Excel.Worksheet
Sub Main(args As String())
'oxl = CreateObject("Excel.Application")
'oxl.DisplayAlerts = True
'oxl.Visible = True
owb = oxl.Workbooks.Open("G:\NTPC.xlsx")
End Sub
End Module
You need to create an Excel Application instance in the code first.
Imports System
Imports Microsoft.Office.Interop
Module Program
Dim oxl As Excel.Application
Dim owbs As Excel.Workbooks
Dim owb As Excel.Workbook
Dim osheets As Excel.Worksheets
Dim osheet As Excel.Worksheet
Sub Main(args As String())
oxl = CreateObject("Excel.Application")
'oxl.DisplayAlerts = True
oxl.Visible = True
owb = oxl.Workbooks.Open("G:\NTPC.xlsx")
End Sub
End Module
hello guys i asked this question before but i just don't seem to find an answer can someone please tell me what i'm doing wrong in my code because even while i tried every methode on the internet no change is ever made on my excel file this my code for changing the color of a cell on an existing excel file
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim ws1 As Microsoft.Office.Interop.Excel.Worksheet
Dim xlApp As New Microsoft.Office.Interop.Excel.Application
ws1 = xlApp.Workbooks.Open(TextBox1.Text).Worksheets(ComboBox1.SelectedItem)
Dim rangeToFormat As Excel.Range
rangeToFormat = ws1.Cells(6, 5)
rangeToFormat.Interior.Color = ColorTranslator.ToOle(Color.Red)
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim xlworkbook As Excel.Workbook
Dim xlWorkSheet As Microsoft.Office.Interop.Excel.Worksheet
Dim xlApp As New Microsoft.Office.Interop.Excel.Application
OpenFileDialog1.ShowDialog()
TextBox1.Text = OpenFileDialog1.FileName
xlworkbook = xlApp.Workbooks.Open(TextBox1.Text, 0, True)
For Each xlWorkSheet In xlApp.Sheets
ComboBox1.Items.Add(xlWorkSheet.Name)
Next
End Sub
my code asks the user to choose an excel file, choose the worksheet that wants to work on and then click on a button to change the color of the cell(6,5) and other cells that i didn't add here to make my code easier to undrestand. thank you sooo much guys on advanced.
Try this:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim ws1 As Microsoft.Office.Interop.Excel.Worksheet
Dim xlApp As New Microsoft.Office.Interop.Excel.Application
ws1 = xlApp.Workbooks.Open(TextBox1.Text).Worksheets(ComboBox1.SelectedItem)
Dim rangeToFormat As Excel.Range
rangeToFormat = ws1.Cells(6, 5)
rangeToFormat.Font.Color = RGB(255, 20, 20)
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim xlworkbook As Excel.Workbook
Dim xlWorkSheet As Microsoft.Office.Interop.Excel.Worksheet
Dim xlApp As New Microsoft.Office.Interop.Excel.Application
OpenFileDialog1.ShowDialog()
TextBox1.Text = OpenFileDialog1.FileName
xlworkbook = xlApp.Workbooks.Open(TextBox1.Text, 0, True)
For Each xlWorkSheet In xlApp.Sheets
ComboBox1.Items.Add(xlWorkSheet.Name)
Next
End Sub
for the one that are still looking for the answer i actually did find it you should just add after the color command:
xlWb.Save()
xlApp.Quit()
xlApp = Nothing
I am trying to create an Office 365 excel spreadsheet using vb.net. I have added the following reference. Microsoft,Office 16.0 Object Library to the project.
Anything with Excel. Errors as not defined.
What's missing?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim objApp As Excel.Application
Dim objBook As Excel._Workbook
Dim objBooks As Excel.Workbooks
Dim objSheets As Excel.Sheets
Dim objSheet As Excel._Worksheet
Dim range As Excel.Range
' Create a new instance of Excel and start a new workbook.
objApp = New Excel.Application()
objBooks = objApp.Workbooks
objBook = objBooks.Add
objSheets = objBook.Worksheets
objSheet = objSheets(1)
You have two options to resolve your issue:
Option 1: Add Imports statement:
Imports Excel = Microsoft.Office.Interop.Excel
Option 2: Specify the namespace
Dim objApp As Microsoft.Office.Interop.Excel.Application
Dim objBook As Microsoft.Office.Interop.Excel._Workbook
Try the following:
Add a Module to your project (name: HelperExcel.vb)
HelperExcel.vb
'Add Reference
'Project => Add Reference => COM => Microsoft Excel 16.0 Object Library
Imports Excel = Microsoft.Office.Interop.Excel
Module HelperExcel
Public Sub CreateExcelWorkbook(filename As String)
Dim oMissing As Object = System.Reflection.Missing.Value
Dim excelApp As Excel.Application = Nothing
Dim excelWorkbook As Excel.Workbook = Nothing
Dim excelWorksheet As Excel.Worksheet = Nothing
Try
'create New instance
excelApp = New Excel.Application()
'suppress displaying alerts (such as prompting to overwrite existing file)
excelApp.DisplayAlerts = False
'set Excel visability
excelApp.Visible = True
'disable user control while modifying the Excel Workbook
'to prevent user interference
'only necessary if Excel application Visibility property = true
'excelApp.UserControl = false
'add workbook
excelWorkbook = excelApp.Workbooks.Add()
'add a worksheet And set the value to the New worksheet
excelWorksheet = excelWorkbook.Sheets.Add()
'indices are 1-based in Excel; A1 = Cells(1,1)
'excelWorksheet.Cells(1, "A") = "Product Code"
'excelWorksheet.Cells(1, "B") = "Product Description"
excelWorksheet.Cells(1, 1) = "Product Code"
excelWorksheet.Cells(1, 2) = "Product Description"
If excelApp IsNot Nothing AndAlso excelWorkbook IsNot Nothing Then
'save Workbook - if file exists, overwrite it
excelWorkbook.SaveAs(filename, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value)
End If
Catch ex As Exception
Debug.WriteLine("Error (CreateExcelWorkbook): " & ex.Message)
Throw ex
Finally
If excelWorkbook IsNot Nothing Then
excelWorkbook.Close()
excelWorksheet = Nothing
excelWorkbook = Nothing
End If
If excelApp IsNot Nothing Then
excelApp.Quit()
'release all resources
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(excelApp)
End If
End Try
End Sub
End Module
Usage:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles btnRun.Click
'write file to Documents folder (ex: C:\Users\<username>\Documents\TestExcel.xlsx)
Dim filename As String = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "TestExcel.xlsx")
HelperExcel.CreateExcelWorkbook(filename)
End Sub
Dim oExcel As Excel.ApplicationClass = New Excel.ApplicationClass
Dim objWS As New Microsoft.Office.Interop.Excel.Worksheet
Dim oBook As Excel.WorkbookClass
Dim oBooks As Excel.WorkbookClass
'Start Excel and open the workbook.
oExcel = CreateObject("Excel.Application")
oExcel.Visible = True
oBooks = oExcel.Workbooks
oBook = oBooks.Open("H:\Copy of Book1.xlsm")
Hi there! I have an error of Invalid Cast Exception at oExcel = CreateObject("Excel.Application")
I'm using Visual Basic and I'm trying to open my excel file which is named Copy of Book1. I'm also using Microsoft Excel 2010. Any idea how to fix that error?
Thank you in advance!
As said in the comment if you just want to start Excel and open a file change the code as follows
Dim oExcel As Excel.Application = New Excel.Application
Dim oBook As Excel.Workbook
'Start Excel and open the workbook.
oExcel.Visible = True
oBook = oExcel.Workbooks.Open("H:\Copy of Book1.xlsm")
Try this:
Sub openExcel()
Dim objExcel As Excel.Application
Set objExcel = CreateObject("Excel.Application")
Dim ws As Worksheet
Dim wb As Workbook
objExcel.Visible = True
Set wb = objExcel.Workbooks.Open("H:\Copy of Book1.xlsm")
End Sub
I want to run an Excel macro when email with "subject" is sent to my inbox. I set up run a script in Manage Rules & Alerts in Outlook. When I receive a mail with "subject" nothing happens to the macro.
Sub Test(mail As MailItem)
Dim ExApp As Excel.Application
On Error Resume Next
Set ExApp = GetObject(, "Excel.Application")
If Not ExApp Is Nothing Then
ExApp.Run "'C:\Users\Desktop\Production v2.7.1.xlsm'!Main_function_Auto"
End If
End Sub
When your calling Excel sub procedure from Outlook, make sure to include the module name -
Example
Option Explicit
Public Sub Example(Item As Outlook.MailItem)
Dim xlApp As Excel.Application
Dim xlBook As Workbook
Set xlApp = New Excel.Application
Set xlBook = xlApp.Workbooks.Open(Environ( _
"USERPROFILE") & "\Desktop\Production.xlsm")
xlApp.Visible = True
' // Run Macro in file
xlBook.Application.Run "Module1.Main_function_Auto"
Set xlApp = Nothing
Set xlBook = Nothing
End Sub