Help Me

Hello, I cant effective fill my *.xlsx document.
Public Class GenExcelDocument
Private docPath As String
Private currentRow As Row
Private document As SpreadsheetDocument
Private dicWorkSheets As New Dictionary(Of String, Worksheet)

Public Sub New(ByVal docPath As String)
Me.docPath = docPath
currentRow = New Row()
currentRow.RowIndex = 0
End Sub

Public Sub Open()
document = SpreadsheetDocument.Open(docPath, True)
End Sub

Public Sub Close()
For Each worksheet In dicWorkSheets.Values
worksheet.Save()
Next
dicWorkSheets.Clear()
document.Close()
End Sub

Private Function GetWorkSheet(ByVal sSheetName As String) As Worksheet
If dicWorkSheets.ContainsKey(sSheetName) Then
Return dicWorkSheets(sSheetName)
Else
Dim sheets As IEnumerable(Of Sheet) = _
document.WorkbookPart.Workbook.Descendants(Of Sheet)().Where(Function(s) s.Name = sSheetName)

If (sheets.Count() = 0) Then
Throw New ArgumentException("The specified worksheet does not exist.")
End If

Dim worksheetPart As WorksheetPart = CType(document.WorkbookPart.GetPartById(sheets.First().Id), WorksheetPart)
Dim ws As Worksheet = worksheetPart.Worksheet
dicWorkSheets.Add(sSheetName, ws)
Return ws
End If
End Function

Public Sub InsertCellInRow(ByVal sSheetName As String, _
ByVal uiRowIndex As UInteger, _
ByVal sCellName As String, _
ByVal sCellValue As String, _
ByVal eCellValueType As CellValues)

If currentRow.RowIndex.Value = 0 Then
currentRow.RowIndex.Value = uiRowIndex
End If
If currentRow.RowIndex.Value = uiRowIndex Then
AddCellInRow(uiRowIndex, sCellName, sCellValue, eCellValueType)
Else
Dim sheetData As SheetData = GetWorkSheet(sSheetName).GetFirstChild(Of SheetData)()
sheetData.Append(currentRow)
AddCellInRow(uiRowIndex, sCellName, sCellValue, eCellValueType)
End If
End Sub

Private Sub AddCellInRow(ByVal uiRowIndex As UInteger, _
ByVal sCellName As String, _
ByVal sCellValue As String, _
ByVal eCellValueType As CellValues)

If currentRow.RowIndex.Value <> uiRowIndex Then
currentRow = New Row()
currentRow.RowIndex = uiRowIndex
End If
currentRow.Append(CreateCell(sCellName, uiRowIndex, sCellValue, eCellValueType))
End Sub

Private Function CreateCell(ByVal sCellName As String, _
ByVal uiRowIndex As UInteger, _
ByVal sCellValue As String, _
ByVal eCellValueType As CellValues) As Cell
Dim cellRetValue As New Cell

cellRetValue.CellValue = New CellValue(sCellValue)
cellRetValue.DataType = New EnumValue(Of CellValues)(eCellValueType)
cellRetValue.CellReference = sCellName & uiRowIndex

Return cellRetValue
End Function
End Class

But I have many problem. When I write other sheet, then end row after it don't saved.

You are making this exercise much harder than it needs to be.

The following article explains why your approach is troublesome and presents the overview of a more manageable alternative:

http://openxmldeveloper.org/articles/7937.aspx

And the following set of tutorials will show you how to solve this and other common SpreadsheetML challenges in the most simple and robust way:

http://www.extrememl.com/index.php/knowledge-center/tutorials

Thanks.
But I want write quickly code.
It is necessary!!!
I change code and he write very well, but I don't now it is correct code? and is it satisfy standard.