Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim con As New SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database1.mdf;Integrated Security=True;User Instance=True") Dim cmd As New SqlCommand cmd.CommandType = CommandType.Text cmd.CommandText = "SELECT StudentIdID, StudentName FROM Students WHERE StudentName LIKE @studName" cmd.Connection = con Dim StudentNameParameter As New SqlParameter("@studName", "g%") cmd.Parameters.Add(StudentNameParameter) End Sub