Hey there,
What is the best way
to get a number of property values of a business object from the View
to the Presenter in a WebFormsMvp page?
Here is what i propose:
The scenario is, I have a business object called Quote which i would like
to load form the database, edit and then save. The Quote class has heaps of properties on it. The form is concerned with about 20 of these properties. I have existing methods
to load/save a Quote object to/from the database. I now need
to wire this all together.
So, in the View_Load handler on my presenter i intend
to do something like this:
public void View_Load(object sender, EventArgs e)
{
View.Model.Quote = quoteService.Read(quoteId);
}
And then bind all my controls as follows:
<asp:TextBox ID="TotalPriceTextBox" runat="server"
Text="<%# Model.Quote.TotalPrice %>" />
All good, the data is on the screen.
The user then makes a bunch of changes and hits a "Submit" button. Here is where I'm unsure.
I create a class called QuoteEventArgs exposing the 20 properties the form is able
to edit. When the View raises the Submit button's event, I set these properties
to the values of the controls in the code behind. Then raise the event for the presenter
to respond
to. The presenter re-loads the Quote object from the database, sets all the properties and saves it
to the database.
Is this the right way
to do this? If not, what is?
Cheers,
Andrej.
