Problem With Comparing!!!

hi ... please look at it :





<< The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator. >>





ok ... it was my error mess, but i just wrote this code :





***********************************************************


Dim conPubs As SqlConnection


Dim cmdSelect As SqlCommand


Dim strSelect As String


conPubs = New SqlConnection ("Server=localhost;uid=ggggg;pwd=uuuu;database=eeee")


strSelect = "Select username From userpass Where username = '" & usernametxt.Text & "' And password = '" & passtxt.Text & "'"


cmdSelect = New SqlCommand( strSelect, conPubs )


conPubs.Open()





if Not(cmdSelect.ExecuteScalar() IS Nothing) then 'findeduser.text


response.redirect("welcome.aspx")


conPubs.Close()


else


msg.text="ID or Pass is incorrect!!"


conPubs.Close()


end if


***********************************************************





what is wrong?


can you help me?





me : mhamini@gmail.com