我对后台工作人员控制非常陌生。我有一个构建文件的现有项目,但在整个项目中构建文件时出现死锁错误。我试图通过创建另一个仅由后台工作人员组成的项目来解决它。然后我将它们合并。
我的问题是我不知道在哪里实施我的后台工作人员会更有效,而且主要问题是如何将 SaveDialog 与我的后台工作人员一起使用?我需要向我的后台工作程序项目发送一个参数,告诉它何时构建我的文件。
这是我的文件正在构建的地方:
srOutputFile = New System.IO.StreamWriter(strFile, False) 'Create File
For iSeqNo = 0 To iPrintSeqNo
' Loop through al the record types
For Each oRecord As stFileRecord In pFileFormat
If dsFile.Tables.Contains(oRecord.strRecordName) Then
' Loop through al the records
For Each row As DataRow In dsFile.Tables(oRecord.strRecordName).Rows
' Check record id
If oRecord.strRecordId.Length = 0 Then
bMatched = True
Else
bMatched = (CInt(oRecord.strRecordId) = CInt(row.Item(1)))
End If
' Match records
If iSeqNo = CInt(row.Item(0)) And bMatched Then
strRecord = ""
' Loop through al the fields
For iLoop = 0 To UBound(oRecord.stField)
' Format field
If oRecord.stField(iLoop).iFieldLength = -1 Then
If strRecord.Length = 0 Then
strTmp = row.Item(iLoop + 1).ToString
Else
strTmp = strDelimiter & row.Item(iLoop + 1).ToString
End If
ElseIf oRecord.stField(iLoop).eFieldType = enumFieldType.TYPE_VALUE Or _
oRecord.stField(iLoop).eFieldType = enumFieldType.TYPE_AMOUNT_CENT Then
strTmp = row.Item(iLoop + 1).ToString.Replace(".", "").PadLeft(oRecord.stField(iLoop).iFieldLength, "0")
strTmp = strTmp.Substring(strTmp.Length - oRecord.stField(iLoop).iFieldLength)
Else
strTmp = row.Item(iLoop + 1).ToString.PadRight(oRecord.stField(iLoop).iFieldLength, " ").Substring(0, oRecord.stField(iLoop).iFieldLength)
End If
If oRecord.stField(iLoop).iFieldLength > -1 And (bForceDelimiter) And strRecord.Length > 0 Then
strTmp = strDelimiter & strTmp
End If
strRecord = strRecord & strTmp
Next
' Final delimiter
If (bForceDelimiter) Then
strRecord = strRecord & strDelimiter
End If
srOutputFile.WriteLine(strRecord)
End If
Next
End If
Next
Next