I have started using Open XML to create an Excel file in order to add some data to it. The example file I have included is modified version of an example I found online. It creates the excel file but when I try to open it, it gives me three errors. I suspect the last two errors are due to adding StyleIndex for a heading cell but the first error has recently showing up when I open any Excel file.
1- Cannot use object linking and embedding. 2- Excel found unreadable content in 'SheetPInfo.xlsx'.Do you want to recover the contents of this workbook? If you trust the source of this workbook, click Yes. 3-Excel was able to open the file by repairing or removing the unreadable content. Repaired Records: Cell information from /xl/worksheets/sheet.xml part
I also get the data/array in the file after closing the last error message but the StyleIndex (bigger font) does not appear in the heading cell 'Last Name'.
What could have been wrong? As I searched online, the order of lines are very important for Excel so I thought maybe my StyleIndex related lines are in wrong places.
Any help would be appreciated greatly.
Imports System.Linq
Imports DocumentFormat.OpenXml
Imports DocumentFormat.OpenXml.Packaging
Imports DocumentFormat.OpenXml.Spreadsheet
Public Class TestEcel10
Inherits System.Web.UI.Page
Private mFileName As String = "SheetPInfo.xlsx"
Private mFileLocation As String = "c:\Contracts\" & mFileName
Private newSpreadSheet As SpreadsheetDocument
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
End Sub
Private Sub btnExportToExcel_Click(sender As Object, e As EventArgs) Handles btnExportToExcel.Click
Dim wsp As WorksheetPart = Spreadsheet_Create()
Dim PInfoArr(2, 3) As String
PInfoArr(0, 0) = "Frank"
PInfoArr(0, 1) = "Baker"
PInfoArr(0, 2) = "2/18/1977"
PInfoArr(0, 3) = "Frank"
PInfoArr(1, 0) = "William"
PInfoArr(1, 1) = "Cook"
PInfoArr(1, 2) = "2/18/1987"
PInfoArr(1, 3) = "Bill"
PInfoArr(2, 0) = "Nancy"
PInfoArr(2, 1) = "Williams"
PInfoArr(2, 2) = "2/18/1973"
PInfoArr(2, 3) = "Nancy"
InsertText(wsp, PInfoArr)
Spreadsheet_Close()
End Sub 'End of btnExportToExcel_Click Sub
Private Function Spreadsheet_Create() As WorksheetPart
'Delete the file if exists
If My.Computer.FileSystem.FileExists(mFileLocation) Then
My.Computer.FileSystem.DeleteFile(mFileLocation)
End If
'Create spreadsheet
newSpreadSheet = SpreadsheetDocument.Create(mFileLocation, SpreadsheetDocumentType.Workbook)
'Add WorkbookPart & Workbook
Dim newWorkbookPart As WorkbookPart = newSpreadSheet.AddWorkbookPart
newWorkbookPart.Workbook = New Workbook()
'Add Worksheet
Return InsertWorksheet(newSpreadSheet.WorkbookPart)
End Function 'End of Spreadsheet_Create function
Private Sub Spreadsheet_Close()
newSpreadSheet.WorkbookPart.Workbook.Save()
newSpreadSheet.Close()
End Sub 'End of Spreadsheet_Close sub
Public Sub InsertText(ByVal wsp As WorksheetPart, ByVal PInfoArray As String(,))
' Get the SharedStringTablePart. If it does not exist, create a new one.
Dim shareStringPart As SharedStringTablePart
If (newSpreadSheet.WorkbookPart.GetPartsOfType(Of SharedStringTablePart).Count() > 0) Then
shareStringPart = newSpreadSheet.WorkbookPart.GetPartsOfType(Of SharedStringTablePart).First()
Else
shareStringPart = newSpreadSheet.WorkbookPart.AddNewPart(Of SharedStringTablePart)()
End If
Dim index As Integer = 0
Dim i As Integer = 0
Dim j As Integer = 0
Dim cell As Cell
'Inserting column headings:
' Insert the text into the SharedStringTablePart.
index = InsertSharedStringItem("First Name", shareStringPart)
' Insert cell A1 into the new worksheet.
cell = InsertCellInWorksheet("A", 1, wsp)
' Set the value of cell A1.
cell.CellValue = New CellValue(index.ToString)
cell.DataType = New EnumValue(Of CellValues)(CellValues.SharedString)
' Insert the text into the SharedStringTablePart.
index = InsertSharedStringItem("Last Name", shareStringPart)
Dim styleIndex As UInt32Value = Convert.ToInt32("36")
' Insert cell A1 into the new worksheet.
cell = InsertCellInWorksheet("B", 1, wsp)
' Set the value of cell A1.
cell.CellValue = New CellValue(index.ToString)
cell.StyleIndex = styleIndex
cell.DataType = New EnumValue(Of CellValues)(CellValues.SharedString)
' Insert the text into the SharedStringTablePart.
index = InsertSharedStringItem("Birth Date", shareStringPart)
' Insert cell A1 into the new worksheet.
cell = InsertCellInWorksheet("C", 1, wsp)
' Set the value of cell A1.
cell.CellValue = New CellValue(index.ToString)
cell.DataType = New EnumValue(Of CellValues)(CellValues.SharedString)
' Insert the text into the SharedStringTablePart.
index = InsertSharedStringItem("Nick Name", shareStringPart)
' Insert cell A1 into the new worksheet.
cell = InsertCellInWorksheet("D", 1, wsp)
' Set the value of cell A1.
cell.CellValue = New CellValue(index.ToString)
cell.DataType = New EnumValue(Of CellValues)(CellValues.SharedString)
'For column data we start from index 2 and increase it as we go to the next row
Dim Rowindex As Integer = 2
Dim ColumnLetter As String = "A"
'Inserting column data:
For i = 0 To UBound(PInfoArray, 1)
For j = 0 To UBound(PInfoArray, 2)
' Insert the text into the SharedStringTablePart.
index = InsertSharedStringItem(PInfoArray(i, j), shareStringPart)
'Set the
If j = 0 Then
ColumnLetter = "A"
ElseIf j = 1 Then
ColumnLetter = "B"
ElseIf j = 2 Then
ColumnLetter = "C"
ElseIf j = 3 Then
ColumnLetter = "D"
End If
' Insert cell A1 into the new worksheet.
cell = InsertCellInWorksheet(ColumnLetter, Rowindex, wsp)
' Set the value of cell A1.
cell.CellValue = New CellValue(index.ToString)
cell.DataType = New EnumValue(Of CellValues)(CellValues.SharedString)
If ColumnLetter = "D" Then
Rowindex = Rowindex + 1
End If
Next
Next
' Save the new worksheet.
wsp.Worksheet.Save()
End Sub 'End of InsertText sub
' Given text and a SharedStringTablePart, creates a SharedStringItem with the specified text
' and inserts it into the SharedStringTablePart. If the item already exists, returns its index.
Private Function InsertSharedStringItem(ByVal text As String, ByVal shareStringPart As SharedStringTablePart) As Integer
'If the part does not contain a SharedStringTable, create one
If (shareStringPart.SharedStringTable Is Nothing) Then
shareStringPart.SharedStringTable = New SharedStringTable
End If
Dim i As Integer = 0
'Iterate through all the items in the SharedStringTable. If the text already exists, return its index
For Each item As SharedStringItem In shareStringPart.SharedStringTable.Elements(Of SharedStringItem)()
If (item.InnerText = text) Then
Return i
End If
i = (i + 1)
Next
'The text does not exist in the part. Create the SharedStringItem and return its index
shareStringPart.SharedStringTable.AppendChild(New SharedStringItem(New DocumentFormat.OpenXml.Spreadsheet.Text(text)))
shareStringPart.SharedStringTable.Save()
Return i
End Function 'End of InsertSharedStringItem function
'Given a WorkbookPart, inserts a new worksheet.
Private Function InsertWorksheet(ByVal workbookPart As WorkbookPart) As WorksheetPart
' Add a new worksheet part to the workbook.
Dim newWorksheetPart As WorksheetPart = _
workbookPart.AddNewPart(Of WorksheetPart)()
newWorksheetPart.Worksheet = New Worksheet(New SheetData)
newWorksheetPart.Worksheet.Save()
'Get a unique ID for the new worksheet
Dim sheetId As UInteger = 1
Dim sheets As New Sheets
If newSpreadSheet.WorkbookPart.Workbook.GetFirstChild(Of Sheets)() IsNot Nothing Then
sheets = newSpreadSheet.WorkbookPart.Workbook.GetFirstChild(Of Sheets)()
'Not sure if this check is required, possible an hanger-on from previous attempts
If (sheets.Elements(Of Sheet).Count > 0) Then
sheetId = sheets.Elements(Of Sheet).Select(Function(s) s.SheetId.Value).Max + 1
End If
End If
Dim relationshipId As String = _
newSpreadSheet.WorkbookPart.GetIdOfPart(newWorksheetPart)
Dim sheetName As String = ("Sheet" + sheetId.ToString())
' Add the new worksheet and associate it with the workbook.
Dim sheet As Sheet = New Sheet
sheet.Id = relationshipId
sheet.SheetId = sheetId
sheet.Name = sheetName
sheets.Append(sheet)
If newSpreadSheet.WorkbookPart.Workbook.GetFirstChild(Of Sheets)() Is Nothing Then
newSpreadSheet.WorkbookPart.Workbook.AppendChild(Of Sheets)(sheets)
End If
workbookPart.Workbook.Save()
Return newWorksheetPart
End Function 'End of InsertWorksheet function
' Given a column name, a row index, and a WorksheetPart, inserts a cell into the worksheet.
' If the cell already exists, return it.
Private Function InsertCellInWorksheet(ByVal columnName As String, ByVal rowIndex As UInteger, ByVal wsp As WorksheetPart) As Cell
Dim worksheet As Worksheet = wsp.Worksheet
Dim sheetData As SheetData = worksheet.GetFirstChild(Of SheetData)()
Dim cellReference As String = (columnName + rowIndex.ToString())
' If the worksheet does not contain a row with the specified row index, insert one.
Dim row As Row
If (sheetData.Elements(Of Row).Where(Function(r) r.RowIndex.Value = rowIndex).Count() <> 0) Then
row = sheetData.Elements(Of Row).Where(Function(r) r.RowIndex.Value = rowIndex).First()
Else
row = New Row()
row.RowIndex = rowIndex
sheetData.Append(row)
End If
' If there is not a cell with the specified column name, insert one.
If (row.Elements(Of Cell).Where(Function(c) c.CellReference.Value = columnName + rowIndex.ToString()).Count() > 0) Then
Return row.Elements(Of Cell).Where(Function(c) c.CellReference.Value = cellReference).First()
Else
' Cells must be in sequential order according to CellReference. Determine where to insert the new cell.
Dim refCell As Cell = Nothing
For Each cell As Cell In row.Elements(Of Cell)()
If (String.Compare(cell.CellReference.Value, cellReference, True) > 0) Then
refCell = cell
Exit For
End If
Next
Dim newCell As Cell = New Cell
newCell.CellReference = cellReference
row.InsertBefore(newCell, refCell)
worksheet.Save()
Return newCell
End If
End Function 'End of InsertCellInWorksheet function
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