Update using SQL in vb

I have used the following codes for updating my record in database (Access 2007)

Dim DBConnection As New MySQLConn
DBConnection.connect()
Dim Query As String

Query = "UPDATE Members SET MemberName = '" & me.textBox2.Text & "' WHERE MemberID = '" & me.textBox1.Text & "'" & vbNewLine
Query &= "UPDATE Members SET Phone = '" & me.textBox3.Text & "' WHERE MemberID = '" & me.textBox1.Text & "'" & vbNewLine
Query &= "UPDATE Members SET Address = '" & me.textBox4.Text & "' WHERE MemberID = '" & me.textBox1.Text & "'" & vbNewLine

DBConnection.updateQuery(Query)
DBConnection.disconnect()


its giving errors that : iSqlStatus = updateCmd.ExecuteNonQuery()"

Please help..I'm totaly new to programming