VB 2010 + sql 2008 กดปุ่มแก้ไขแล้วมันแก้ไขทั้งหมด

    'ปุ่มแก้ไข
    Private Sub ButtonEd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonEd.Click
        Dim con As New SqlConnection(cn)
        con.Open()
        Dim updateQuery As String = "update EmployeeInfo set CardId ='" & TextBoxCId.Text & "', FirstName = '" & TextBoxName.Text & "',LastName = '" & TextBoxLN.Text & "',Age = '" & TextBoxAge.Text & "',Gender = '" & GenderComboBox.Text & "',Birth = '" & DateTimePicker1.Text & "',Address = '" & TextBoxAdr.Text & "',PhoneNumber = '" & TextBoxNm.Text & "',Gpa = '" & TextBoxGpa.Text & "', Position = '" & PositionComboBox.Text & "', Status = '" & ComboBox1.Text & "', Education = '" & EducationComboBox.Text & "'"
        Dim cmd As New SqlCommand(updateQuery, con)
        cmd.ExecuteNonQuery()
        MessageBox.Show("แก้ไขเพิ่มข้อมูลสำเร็จ", "สำเร็จ", MessageBoxButtons.OK, MessageBoxIcon.Information)
        refresh_edit()
        con.Close()
    End Sub