Multi-part identifier could not be bound

Question

   
I need to load a specific data into a variable in VisualBasic but im having this probably and getting a bit frustrated with this error. I would really aprecciate any help.
Dim conn As New SqlConnection("Data Source=LUCIFERI\SQLEXPR2012;Initial Catalog=ProyectoBD;Integrated Security=True; Connection Lifetime=60; Max Pool Size=50; Min Pool Size=3")
            Dim cmd As New SqlCommand
            Dim dr As SqlDataReader
            Dim ds As New DataSet
            cmd.Connection = conn
            cmd.CommandText = "SELECT idPerfil FROM USUARIO WHERE USUARIO.correoElectronico =" & emailtxt.Text
            conn.Open()
            dr = cmd.ExecuteReader()
            ds.EnforceConstraints = False
            dts.gtipo = Convert.ToString(dr.Item("idPerfil"))
            dr.Close()

Answer 1

Hi,
You should always try to use parameterized SqlCommand to avoid SQL Injection and other *weird* errors like this.
I think you are getting this error because emailtxt.Text contains a period (.) in it.
Use below code snippet instead:
Dim cmd As New SqlCommand("SELECT idPerfil FROM USUARIO WHERE USUARIO.correoElectronico = @EMailText")
cmd.Parameters.AddWithValue("@EMailText", emailtxt.Text)
- Vishal
SqlAndMe.com