C in CRUD for Silverlight

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

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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

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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?

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.

StackExchange Code Review Q#2824, answer score: 3