I'm experiencing a problem with Visual Basic code with .NET framework 4.7.2 running. I'm using VBA for Office (documentation) and trying to create a PowerPoint automation tool. Now I have ran into the problem that when I use the SaveAs method for PowerPoint, the constant I give for the parameter File Format is 'not declared'. I believe I have set all references correctly. Also, the SaveAs method normally works, except when I try to specify the File Format, it throws this error:
The code:
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
For Each sSourceFile As String In sFileLocations
Dim pptApp = CreateObject("PowerPoint.Application")
pptApp.visible = True
Dim sSourcePath = Mid(sSourceFile, 1, InStrRev(sSourceFile, "\"))
Dim sDestPattern = Mid(sSourceFile, InStrRev(sSourceFile, "\") + 1)
Dim sDestinationFile = Replace(sDestPattern, ".pptx", "", 1, -1, CompareMethod.Text)
sDestinationFile = Replace(sDestinationFile, ".ppt", "", 1, -1, CompareMethod.Text)
Dim pptPres = pptApp.Presentations.Open(sSourceFile)
' Debug.WriteLine(sSourcePath)
' Debug.WriteLine(sDestinationFile)
pptPres.SaveAs(sSourcePath & sDestinationFile & ".pptx", ppSaveAsDefault)
' Update PowerPoint thubmnail by adding new slide to the front then saving file
Dim pptLayout = pptPres.Slides(1).CustomLayout
Dim newSlide = pptPres.Slides.AddSlide(1, pptLayout)
pptPres.save()
' Remove new slide and save again to display correct thumbnail
Dim removeSlide = pptPres.Slides(1).Delete
pptPres.save()
pptPres.close()
pptApp.quit()
pptPres = Nothing
pptApp = Nothing
Next
MsgBox("Done")
End Sub
I'm using Visual Studio Community 2019. These are the references for the project:
How can I declare the file format with the SaveAs method successfully?
That is called an Enumeration - You can include them by adding a PowerPoint reference to your project, or if you are using late binding, you can either replace it with the number it represents (in this case, the number 11), or create your own custom Enumeration.
Here is a link to that Enumeration - ppSaveAsType Enumeration
Related
Imports System
Imports System.IO
Imports Microsoft.VisualBasic.FileIO
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
Dim owr As Excel.Range
Dim tempName As String
Sub Main()
oxl = CreateObject("Excel.Application")
oxl.Visible = False
Dim path As String = "G:\Matthews Asia\Matthews Raw Data"
Dim names As String() = Directory.GetFiles(path, "*.xlsx")
Dim newDetails(,) As Object
'Get the new names and the boundaries of the data set
newDetails = getNewNames(names)
'Printing the detials to check getNewNames works or not - works fine
printNewDetails(newDetails) 'Working fine
'Rename files
rename(names, newDetails)
Console.ReadLine()
End Sub
Function getNewNames(ByVal names() As String) As Object(,)
'Declare Object type array to be returned with the details
Dim newDetails(names.Length - 1, 2) As Object
Dim lastRow, lastColumn As Integer
For i =0 To names.GetUpperBound(0)
'point to the excel file
owb = CType(oxl.Workbooks.Open(names(i)), Excel.Workbook) 'Sometimes error comes here
osheet = CType(owb.Worksheets("Holdings"), Excel.Worksheet)
owr = CType(osheet.Range("A7"), Excel.Range)
'Pick new name of file and add the excel extension
tempName = CStr(owr.Value) & ".xlsx"
'row & column number of last data point in the dataset
lastColumn = CType(osheet.Range("A13").End(Excel.XlDirection.xlToRight), Excel.Range).Column
lastRow = CType(osheet.Range("A13").End(Excel.XlDirection.xlDown), Excel.Range).Row
newDetails(i, 0) = tempName
newDetails(i, 1) = lastRow
newDetails(i, 2) = lastColumn
Next
owb.Close()
Return newDetails
End Function
Function printNewDetails(ByVal details As Object(,)) As Integer
For i = 0 To details.GetUpperBound(0)
Console.WriteLine("New name: {0}", details(i, 0))
Console.WriteLine("Last row: {0}", details(i, 1))
Console.WriteLine("Last Column: {0}", details(i, 2))
Next
Return 1
End Function
Sub rename(ByVal oldName As String(), ByVal tempArray As Object(,))
For i = 0 To oldName.GetUpperBound(0)
FileSystem.RenameFile(oldName(i), CStr(tempArray(i, 0))) 'Error Here
Next
End Sub
End Module
i am trying to rename some excel files all of which is in a particular directory. The code does the following:
It opens each file which has just one sheet
Then it picks the string in cell A7 in each of those files
It also finds out the last row and last column of the data set (cell A13 is the starting point of the dataset in each of the files)
Finally, in an object array newDetails we store the string in cell A7 in the first column, the last row of the dataset (column 2) and last column of the dataset (column 3). Each row has data corresponding to one excel file
After that, the code renames the files using the rename subroutine -- the idea is to swap the old names which is stored in the names array with the string value in the first column of the newDetails array.
But When I run the code, the following error message comes: The process cannot access the file because it is being used by another process. I have opened task manager, manually closed all excel processes and even restarted the computer - even then this error comes. Have attached the screenshot of the error. Requesting help.
Strangely, when I run the code more than once, sometimes I am getting the error in the line owb = CType(oxl.Workbooks.Open(names(i)), Excel.Workbook) and that error warns me to check if the files are corrupted or not. The files are not corrupted because when I manually open them there is no problem.
When a filename starts with ~$, it usually indicates that the file is already open (in Excel). However, sometimes this file doesn't get deleted. If you're sure that Excel is no longer running, such as after a reboot, and such a file exists, one can delete it. Of course, one could also just ignore it when getting a list of files.
You haven't mentioned if you're using .NET or .NET Framework and which version. VS 2019 supports .NETCore 3.1, .NET 5 (no longer supported), and .NET Framework versions.
One may consider using NuGet package DocumentFormat.OpenXml or ClosedXml instead. However, if one desires to use Excel Interop, try the following:
Add a reference: Microsoft Excel xx.x Object Library (ex: Microsoft Excel 16.0 Object Library)
Project
Add Project Reference...
COM
Microsoft Excel xx.x Object Library (ex: Microsoft Excel 16.0 Object Library)
OK
Create a class (name: XLInfo.vb)
Public Class XLInfo
Public Property OriginalFilename As String
Public Property LastRow As Integer
Public Property LastColumn As Integer
Public Property RenamedTo As String
End Class
Create a module (name: HelperExcel.vb)
Imports Microsoft.Office.Interop
Imports System.IO
Module HelperExcel
Private Function GetExcelFilenames(folderPath As String) As List(Of String)
Dim filenames As List(Of String) = New List(Of String)
For Each fqFilename As String In Directory.GetFiles(folderPath, "*.xlsx")
'get only the filename
Dim fn As String = Path.GetFileName(fqFilename)
If Not fn.StartsWith("~") Then
Debug.WriteLine($"Info: adding '{fqFilename}'...")
filenames.Add(fqFilename) 'add
End If
Next
Return filenames
End Function
Public Function ProcessExcelFiles(folderPath As String) As List(Of XLInfo)
#Disable Warning CA1416
Dim infos As List(Of XLInfo) = New List(Of XLInfo)
Dim oxl As Excel.Application = Nothing
Dim owbs As Excel.Workbooks = Nothing
Dim owb As Excel.Workbook = Nothing
Dim osheets As Excel.Worksheets = Nothing
Dim osheet As Excel.Worksheet = Nothing
Dim owr As Excel.Range = Nothing
'get filenames
Dim names As List(Of String) = GetExcelFilenames(folderPath)
Try
'create new instance
oxl = New Excel.Application()
oxl.Visible = False
For i As Integer = 0 To names.Count - 1
'create new instance
Dim info As XLInfo = New XLInfo()
'create reference
Dim fn As String = names(i)
'set value
info.OriginalFilename = fn
'open workbook
'owb = oxl.Workbooks.Open(Filename:=fn, [ReadOnly]:=True)
owb = oxl.Workbooks.Open(Filename:=fn)
'open worksheet
osheet = owb.Worksheets(1)
'set value - this is the new filename
info.RenamedTo = Path.Combine(Path.GetDirectoryName(fn), $"{osheet.Range("A7").Value.ToString()}.xlsx")
'ToDo: get last column
'set value - last column
'info.LastColumn = DirectCast(osheet.Range("A13").End(Excel.XlDirection.xlToRight), Excel.Range).Column
'ToDo: get last row
'set value - last row
'info.LastRow = DirectCast(osheet.Range("A13").End(Excel.XlDirection.xlDown), Excel.Range).Row
'add
infos.Add(info)
If osheet IsNot Nothing Then
'release all resources
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(osheet)
'set value
osheet = Nothing
End If
If owb IsNot Nothing Then
'save
owb.SaveCopyAs(info.RenamedTo)
'owb.SaveAs2(Filename:=info.RenamedTo)
'close
owb.Close(False)
'release all resources
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(owb)
'set value
owb = Nothing
End If
Next
Finally
If osheet IsNot Nothing Then
'release all resources
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(osheet)
'set value
osheet = Nothing
End If
If owb IsNot Nothing Then
'close
owb.Close(False)
'release all resources
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(owb)
'set value
owb = Nothing
End If
If oxl IsNot Nothing Then
'quit
oxl.Quit()
'release all resources
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(oxl)
'force garbage collection
GC.Collect()
End If
End Try
#Enable Warning CA1416
'sleep
System.Threading.Thread.Sleep(250)
'delete original filenames
If Not Directory.Exists(Path.Combine(folderPath, "Original Files")) Then
'create folder if it doesn't exist
Directory.CreateDirectory(Path.Combine(folderPath, "Original Files"))
End If
For i As Integer = 0 To names.Count - 1
If File.Exists(names(i)) Then
'move file to .\Original Files\<filename>
File.Move(names(i), Path.Combine(folderPath, "Original Files", Path.GetFileName(names(i))), True)
Debug.WriteLine($"File moved to '{Path.Combine(folderPath, "Original Files", Path.GetFileName(names(i)))}'")
'ToDo: if one desires to delete the original filenames,
'uncomment the line below
'delete file
'File.Delete(names(i))
End If
Next
Return infos
End Function
End Module
Note: The code above was tested with VS 2022 (.NET 6) since .NET 5 is no longer supported. See here for more info. If using .NET Framework, one can remove #Disable Warning CA1416 and #Enable Warning CA1416.
Usage:
Sub Main(args As String())
'ToDo: replace folder name with desired folder name
Dim infos As List(Of XLInfo) = ProcessExcelFiles("C:\Temp")
For Each info As XLInfo In infos
Dim msg As String = $"OriginalFilename: '{info.OriginalFilename}' RenamedTo: '{info.RenamedTo}' LastRow: '{info.LastRow}' LastColumn: '{info.LastColumn}'"
Debug.WriteLine(msg)
Console.WriteLine(msg)
Next
End Sub
Resources:
Excel Interop
What is .NET Framework
Microsoft .NET Framework
Microsoft .NET and .NET Core
System.IO.File
System.IO.Path
Interpolated Strings (Visual Basic Reference)
Collections (Visual Basic)
Objects and classes in Visual Basic
Option Strict Statement
Additional Resources
Programmatically getting the last filled excel row using C#
We typically use powerpoint to facilitate our experiments. We use "sections" in powerpoint to keep groups of slides together for each experimental task. Moving the sections to counterbalance the task order of the experiment has been a lot of work!
I thought we might be able to predefine a counterbalance order (using a string of numbers representing the order) in a CSV or array (haven't built that out yet in VBA). Then using VBA to move the sections and save the file for each order. I am pretty rusty using VBA but I think I have a pretty good start. The problem is on line 24. I have no idea how to copy the section to the new presentation. Is anyone familiar enough to steer me down the right path.
Sub Latin_Square()
Dim amountOfSubjects As Integer
'Declare the amount of subjects you have in your study
amountOfSubjects = 14
Dim filePath As String
filePath = "C:/1.pptx"
Dim amountofsections As Integer
Dim i As Integer
Dim fso As Object
Set fso = CreateObject("Scripting.FileSystemObject")
Dim desktopPath As String
'find out where user's desktop is
desktopPath = Environ("UserProfile") & "\Desktop\"
Dim oldPresentation As Presentation
Dim newPresentation As Presentation
'open the target presentation
Set oldPresentation = Presentations.Open("C:\1.pptx")
For i = 1 To oldPresentation.Slides.Count
oldPresentation.Slides.Item(i).Copy
newPresentation.Item(1).Slides.Paste
Next i
oldPresentation.Close
With newPresentation
.SaveCopyAs _
FileName:=fso.BuildPath(desktopPath, "Test" & 1 & ".pptx"), _
FileFormat:=ppSaveAsOpenXMLPresentation
End With
End Sub
If you want to copy slides with their sections, then you can not paste the slide by newPresentation.Slides.Paste only, as that moves the section of the last slide to the newly pasted slide.
Here's an example how to copy slide-by-slide, check if a slide is the beginning of a section, and how to add a new section then:
Public Sub CopySlidesWithSections()
Dim oldPresentation As Presentation, newPresentation As Presentation
Dim oldSlide As Slide, newSlide As Slide
Dim oldSectionProperties As SectionProperties, newSectionProperties As SectionProperties
Dim i As Integer
Set oldPresentation = ActivePresentation
Set oldSectionProperties = oldPresentation.SectionProperties
Set newPresentation = Application.Presentations.Add
Set newSectionProperties = newPresentation.SectionProperties
For Each oldSlide In oldPresentation.Slides
oldSlide.Copy
' Would lead to wrong sectioning: Set newSlide = newPresentation.Slides.Paste.Item(1)
Set newSlide = newPresentation.Slides.Paste(newPresentation.Slides.Count + 1).Item(1)
For i = 1 To oldSectionProperties.Count
If oldSectionProperties.FirstSlide(i) = oldSlide.SlideIndex Then
newSectionProperties.AddBeforeSlide _
newSlide.SlideIndex, _
oldSectionProperties.Name(i)
Exit For
End If
Next i
Next oldSlide
End Sub
I have a macro files with file extension of .DO Files(.DO). I Open a file through vb.net
application and to also open a macro. by using that macro I need to format that word Document. I
tried a lot but no use . I try to Select some area of word file but it will leads to error:
Object reference not set to instance of object
Private sub beginFormatting
ls_inipath = System.Windows.Forms.Application.StartupPath & "\"
ls_Document = GetIniValue("Remove_Pages", "doc_name", txtFileName.Text)
Dim what As Object = Word.WdGoToItem.wdGoToLine
Dim which As Object = Word.WdGoToDirection.wdGoToLast
Dim SelectionOne As Selection
Dim returnValue As Range = SelectionOne.GoTo(what, which, Nothing,
Nothing)
SelectionOne.EndKey(WdUnits.wdStory, WdMovementType.wdMove)
end sub
I'm trying to add the functionality in my Outlook (with VBA, I guess is easiest) to add a simple file dialog which takes the path of any files chosen and adds them to the email body as a hyperlink.
The idea of this is for network files to be shared amongst colleagues, instead of attaching them to the email, but just as easy to do.
This is my code so far, I can't even get the dialog to open, and I've had a good look at trying to get COMDLG32.ocx, so far I can't seem to make anything work.
Sub Main2()
Dim CDLG As Object
Set CDLG = CreateObject("MSComDlg.CommonDialog")
With CDLG
.DialogTitle = "Get me a File!"
.Filter = _
"Documents|*.doc|Templates|*.dot|Text Files|*.txt"
.ShowOpen
MsgBox .FileName
End With
Set CDLG = Nothing
End Sub
Thanks in advance, hopefully someone can show me how this is done!
Just for those who need it; OS Windows 10, Office 2010 H&B (yes, I know it's out of date :))
There seems to be no direct way to open a FileDialog in Outlook 2010 VBA.
The following macro (inspired by a related post) makes use of Excel to circumvent this:
Public Function promptFileName(title As String, filter As String) As String
' requires project reference to "Microsoft Excel 14.0 Object Library"
Dim xlObj As Excel.Application
Dim fd As Office.FileDialog
Dim name As String
Dim vItem As Variant
Dim filterArray() As String
Dim i As Integer
Set xlObj = New Excel.Application
xlObj.Visible = False
Set fd = xlObj.Application.FileDialog(msoFileDialogOpen)
name = ""
With fd
.title = title
.ButtonName = "Ok"
.Filters.Clear
filterArray = Split(filter, "|")
For i = LBound(filterArray) To UBound(filterArray) - 1 Step 2
.Filters.Add filterArray(i), filterArray(i + 1), 1 + i \ 2
Next i
If .Show = -1 Then
For Each vItem In .SelectedItems
name = vItem
Exit For
Next
End If
End With
xlObj.Quit
Set xlObj = Nothing
promptFileName = name
End Function
Private Sub testPromptFile
Dim name as String
name = promptFileName("a test", "Text Files (*.txt)|*.txt|All Files (*.*)|*.*")
MsgBox name
End Sub
Outlook 2013 and beyond provide an Office.FileDialog class for this purpose.
You can press a button with Outlook VBA.
Sub ExecuteMso_strId()
Dim objItem As Object
Dim strId As String
' Text appears when hovering over icon
' when adding buttons to a Quick Access toolbar or a ribbon
strId = "HyperlinkInsert"
On Error Resume Next
Set objItem = ActiveInspector.currentItem
On Error GoTo 0
If Not objItem Is Nothing Then
ActiveInspector.CommandBars.ExecuteMso (strId)
Else
ActiveExplorer.CommandBars.ExecuteMso (strId)
End If
End Sub
With this you do not have access to the parameters as with Excel.
I need help with saving user entered data (textbox) to an excel file. The excel file should be created on desktop automatically. I can add one textbox to excel but not multiple. If possible can you give code on being able to open the same file when btnopen is clicked, thank you!
my code right now for save button.
Private Sub btnSave_Click(sender As Object, e As EventArgs) Handles btnSave.Click
SaveFileDialog.Filter = "CSV Files (*.csv*)|*.csv"
If SaveFileDialog.ShowDialog = Windows.Forms.DialogResult.OK _
Then
My.Computer.FileSystem.WriteAllText _
(SaveFileDialog.FileName, txtBMI.Text, True)
End If
table.Rows.Add(DateTimePicker1.Text, txtBMI.Text, txtHeight.Text, txtWeight.Text)
DataGridView1.DataSource = table
End Sub
http://i.stack.imgur.com/H73M8.jpg
http://i.stack.imgur.com/Rjtjw.jpg
I think you need to use a supported library of creating Excel file and not to do it with file.create as you did.
You can use Microsoft Excel 12.0 Object Library and add a refernce to the bin folder or other dll of working with Excel instance.
Dim xlApp As Excel.Application = New
Microsoft.Office.Interop.Excel.Application()
You can see it here -
http://vb.net-informations.com/excel-2007/vb.net_excel_2007_create_file.htm
Add first the Microsoft Excel 12.0 Object Library via
Project>Properties>References>Add>COM>Type Libraries>Microsoft Excel 12.0 Object Library
Add releaseObject function (To release the excel file in the app):
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
After adding, declare the necessary variables so that it's easier to control the excel file:
Dim appXL As Excel.Application
Dim wbXl As Excel.Workbook
Dim shXL As Excel.Worksheet
Dim raXL As Excel.Range
' Start Excel and get Application object.
appXL = CreateObject("Excel.Application")
' Add a new workbook.
wbXl = appXL.Workbooks.Add
shXL = wbXl.ActiveSheet
shXL.PageSetup.Orientation = Excel.XlPageOrientation.xlLandscape
shXL.PageSetup.PaperSize = Excel.XlPaperSize.xlPaperA3
appXL.Visible = False
Add the headers with bold text:
With shXL.Range("A1", "D1")
.Font.Bold = True
End With
shXL.Cells(1,1) = "Date"
shXL.Cells(1,2) = "Height"
shXL.Cells(1,3) = "Weight"
shXL.Cells(1,4) = "BMI"
shXL.Cells(2,1) = DateTimePicker1.Text
shXL.Cells(2,2) = txtHeight.Text
shXL.Cells(2,3) = txtWeight.Text
shXL.Cells(2,4) = txtBMI.Text
Next, open the excel file.
appXL.Visible = True
appXL.UserControl = True
shXL.SaveAs("C:\Book1.xml")
raXL = Nothing
shXL = Nothing
wbXl = Nothing
appXL = Nothing
releaseObject(shXL)
releaseObject(wbXl)
releaseObject(appXL)