Problem with OleDb.OleDbCommand.ExecuteScalar

Hi Experts,

I'm having a problem with the following piece of code.. Don't kno the reason for it and how to go bout correcting it...

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Dim Cmd1 As OleDb.OleDbCommand = New OleDb.OleDbCommand("SELECT UserName FROM Login WHERE UserName=" & txtUser.Text, Conn)

Dim userid As String = New String(CStr(Cmd1.ExecuteScalar))

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('txtUser' is a text box and 'conn' is an OleDbConnection). The error i'm getting is
      "No value given for one or more required parameters." for the second Dim statement...

pls help me out...
thank u...
ur_cherubAsked:
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Éric MoreauConnect With a Mentor Senior .Net ConsultantCommented:
since it is a character field, you need to put quotes around the value:

Dim Cmd1 As OleDb.OleDbCommand = New OleDb.OleDbCommand("SELECT UserName FROM Login WHERE UserName='" & txtUser.Text & "'", Conn)

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ur_cherubAuthor Commented:
Thank u very much emoreau...
very stupid of me to have left that out...

thanks a lot
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