C in CRUD for Silverlight

Question

The C in CRUD Silverlight:

• Create new Silverlight business application "CRUD"
• Add ADO.NET Entity Data Model to CRUD.web
• Select the db, the tables, build the project
• Add Domain Service Class to CRUD.web
• Select the tables and also select the allow editing option for the table "tname"
• Build the project
• Keep two textboxes "ID" and "NAME" on MainPage.xaml
• Keep a button "SAVE NEW RECORD" on MainPage.xaml
• Build

• Add the following code

  Partial Public Class MainPage
      Inherits UserControl
  
      Dim dserv As New DomainService1
  
  //default methods generated
  Private Sub Button1_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles Button1.Click
          'declare a table object
          Dim table As New tname
          'assign values to fields
          table.ID = TextBox1.Text
          table.NAME = TextBox2.Text
          'add table object entity
          dserv.tnames.Add(table)
          'submit the changes, to make it permenant in the db
          dserv.SubmitChanges()
      End Sub
  

• Record inserted

Is this the easiest way for having no side effects to add a new record? Is this the optimal way to add a new record?

Answer 1

I don't think it's best-practice to put any logic that isn't strictly presentation-specific directly into a code-behind event handler like this, let alone that a UserControl knows anything about any DomainService1 object.

If you're shooting for best-practices, you need to look into the Model-View-ViewModel pattern; it's not the job of any UI component to perform any kind of business or data logic.