Can someone please help me with why I'm receiving this error message for a ALineIn.Split Delimiter. Thanks!

Error Message:

Error   1   Overload resolution failed because no accessible 'Split' can be called without a narrowing conversion:
    'Public Function Split(separator() As Char, options As System.StringSplitOptions) As String()': Argument matching parameter 'separator' narrows from 'String' to '1-dimensional array of Char'.
    'Public Function Split(separator() As Char, options As System.StringSplitOptions) As String()': Argument matching parameter 'options' narrows from 'Integer' to 'System.StringSplitOptions'.
    'Public Function Split(separator() As Char, count As Integer) As String()': Argument matching parameter 'separator' narrows from 'String' to '1-dimensional array of Char'. C:\Documents and Settings\My Documents\Visual Studio 2008\Projects\\frmMainPanel.vb 60  30  

Code:

Public Class frmMainPanel

    Private Sub frmMainPanel_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
        End
    End Sub

    Private Sub frmMainPanel_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        lblAdvice.Text = "Hello " & LoggedInUser.UserName & "." & vbCrLf _
  & "Your Primary Role is: " & LoggedInUser.Purview & vbCrLf _
  & "Your Account #, should it be needed, is " & LoggedInUser.AccountId
    End Sub

    Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAccess.Click
        btnAccess.Text = "Access"
        Dim AccountMaint As frmMainPanel
        AccountMaint = New frmMainPanel
        frmAccountMaint.Show()
    End Sub

    Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
        btnUpdate.Text = "Update Customer Records"
        Dim CustomerList As frmMainPanel
        CustomerList = New frmMainPanel
        CustomerList.Show()

        'MessageOut and ListBox1 were used to debug the script.  Put ListBox1 on your form and uncomment lines
        'referring to these as an aid to debugging if needed
        Dim OpenFileDialog1 As OpenFileDialog
        Dim ALineIn, MessageOut As String
        Dim Fields(99) As String
        Dim RecordsRead, Updated, Inserted, Blanks As Integer
        Dim UsersId, LastName As String
        Dim Delimiter As String
        Delimiter = Chr(9)
        Dim UsersCnxn As New System.Data.OleDb.OleDbConnection
        'Point UsersCnxn to the database
        UsersCnxn.ConnectionString = _
          "Provider=Microsoft.ACE.OLEDB.12.0;" _
          & "Data Source=C:\Documents and Settings\\My Documents\Visual Studio 2008\Projects\Test\bin\Debug\Test.mdb"
        Dim UsersCommand As New System.Data.OleDb.OleDbCommand
        Dim SQLStmt As String
        Dim CommandResult As Integer
        'Set OpenFile dialog to find files with CustomerList in the name and a .tab extension
        OpenFileDialog1.Filter = "CustomerFiles | *CustomerList.tab"
        OpenFileDialog1.ShowDialog()
        If OpenFileDialog1.FileName <> "" Then
            'Open the file
            FileOpen(1, OpenFileDialog1.FileName, OpenMode.Input)
            'Open the database cnxn and associate it with the UsersCommand
            UsersCnxn.Open()
            UsersCommand.Connection = UsersCnxn
            UsersCommand.CommandType = CommandType.Text
            While Not EOF(1)
                'Input a record from the Customers file
                ALineIn = LineInput(1)
                RecordsRead += 1
                'Consider a record that's less than 5 characters long as a Blank record
                If Len(ALineIn) > 5 Then
                    'Split ALineIn into the array Fields
                    Fields = ALineIn.Split(Delimiter, 9)
                    'MessageOut = "Fields(0)='" & Fields(0) & "' Fields(2)='" & Fields(2) & "'"
                    'ListBox1.Items.Add(MessageOut)
                    'Check to see if a record from this source with this SourcesId is already in the table
                    SQLStmt = String.Format("SELECT Id FROM Users WHERE RecordSource='Website' and SourcesId='{0}'", Fields(0))
                    'Use string.Replace on any fields that might have a single quote in them before
                    'sticking them into the SQLStmt where they'll cause the statement to fail
                    Fields(2) = Fields(2).Replace("'", "''")
                    UsersCommand.CommandText = SQLStmt
                    Try
                        UsersId = UsersCommand.ExecuteScalar
                    Catch ErrorMessage As Exception
                        MessageOut = String.Format("This SQLStmt '{0}' Got this exception '{1}'", SQLStmt, ErrorMessage)
                        MsgBox(MessageOut)
                    End Try
                    'MessageOut = "UsersId='" + UsersId + "'"
                    If UsersId = "" Then
                        'An empty string was returned if this record is not already in the table, INSERT it
                        'ListBox1.Items.Add(MessageOut)
                        SQLStmt = "INSERT INTO Users (RecordSource, SourcesId, LastName) " _
                           & String.Format("VALUES ('Website', '{0}', '{1}')", Fields(0), Fields(2))
                        'ListBox1.Items.Add(SQLStmt)
                        UsersCommand.CommandText = SQLStmt
                        Try
                            CommandResult = UsersCommand.ExecuteNonQuery()
                        Catch ErrorMessage As Exception
                            MessageOut = String.Format("This SQLStmt '{0}' Got this exception '{1}'", SQLStmt, ErrorMessage)
                            MsgBox(MessageOut)
                        End Try
                        Inserted += 1
                        'ListBox1.Items.Add(Str(CommandResult))
                        'ListBox1.Refresh()
                    Else
                        'The record is already in the table, UPDATE it
                        SQLStmt = "UPDATE Users SET " _
                            & String.Format("RecordSource='Website', SourcesId='{0}', LastName='{1}' ", Fields(0), Fields(2)) _
                            & String.Format("WHERE Id={0}", UsersId)
                        Try
                            UsersCommand.CommandText = SQLStmt
                            CommandResult = UsersCommand.ExecuteNonQuery()
                        Catch ErrorMessage As Exception
                            MessageOut = String.Format("This SQLStmt '{0}' Got this exception '{1}'", SQLStmt, ErrorMessage)
                            MsgBox(MessageOut)
                        End Try
                        'ListBox1.Items.Add(SQLStmt)
                        Updated += 1
                    End If
                Else
                    'Don't do anything with a Blank record but count it
                    'ListBox1.Items.Add("Blank Record")
                    Blanks += 1
                End If
            End While
            'Close the file and Cnxn and show the control counts
            FileClose(1)
            UsersCnxn.Close()
            MessageOut = "Read " + Str(RecordsRead) & " records from the file." & vbCrLf _
              & Str(Blanks) & " were Blank records. " & vbCrLf _
              & Str(Inserted) & " were Inserted into the Users table. " & vbCrLf _
              & Str(Updated) & " were Updated."
            MsgBox(MessageOut)
        End If
    End Sub
End Class

Edited 3 Years Ago by mike_2000_17: Fixed formatting

Fix

'Split ALineIn into the array Fields
Fields = ALineIn.Split(Delimiter, 9)

to Fields = Strings.Split(ALineIn, Delimiter, 9) or declare Delimiter as an array:

Dim Delimiter(0) As String
Delimiter(0) = Convert.ToChar(ControlChars.Tab) ' Or Convert.ToChar(9)
Fields = ALineIn.Split(Delimiter, 9, StringSplitOptions.None) ' Or StringSplitOptions.RemoveEmptyEntries

Thank you for respond, I updated the split but I'm now received this error for OpenFileDialog1.Filter = "CustomerFiles | *CustomerList.tab":

Object reference not set to an instance of an object.

Any suggestions?

You Dim(med) OpenFileDialog1, but never create an instance, like this: Dim OpenFileDialog1 As New OpenFileDialog or

Dim OpenFileDialog1 As OpenFileDialog
OpenFileDialog1 = New OpenFileDialog
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