DataTable problem

[Abomination]

Hello, how come when I run my program, I get an error, I'll high light the error, this is my code

Imports MySql.Data.MySqlClient
Imports System.Data


Public Class Form2

    Private myConnString As String



    Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim conn As MySqlConnection
        Dim myData As New DataTable
        Dim myAdapter As New MySqlDataAdapter
        Dim myCommand As New MySqlCommand
        Dim SQL As String


        conn = New MySqlConnection
        conn.ConnectionString = "server=" & Form1.TextBox1.Text & ";" _
        & "user id=" & Form1.TextBox2.Text & ";" _
        & "password=" & Form1.TextBox3.Text & ";" _
        & "database=" & Form1.TextBox4.Text & ";"

        Try
            conn.Open()
            Me.Label1.Text = "Connected To: " & Form1.TextBox4.Text
            myCommand.Connection = conn
            myCommand.CommandText = SQL

            myAdapter.SelectCommand = myCommand
            myAdapter.Fill(myData)   < ---------- Gives me an error here     " The CommandText property has not been properly initialized. "

            DataGridView1.DataSource = myData


        Catch myerror As MySqlException
            Me.Label1.Text = "Connection to, " & Form1.TextBox4.Text & " has been lost."



        End Try







    End Sub
End Class