Just a quick note to book authors, users, and anybody else who cares.
I'm communicating early because...well, why wait?
Microsoft Tools and MyApp.xaml
The VS "Orcas" team and Expression Interactive Designer team plan to change a few things about the default files created when you create a new WPF project. You'll likely see the change in VS next CTP...EID will come the release after that.
Today's Model
Today, VS "Orcas" creates a MyApp.xaml file with the following root element:
<Application x:Class="ProjectName.MyApp" ...>
Today, EID ("Sparkle") creates an Application.xaml file with the following root element:
<Application x:Class="ProjectName.MainApplication" ... >
Next CTP's model
Those teams have decided to move to a consistent model. The file will be called App.xaml and will look like this:
<Application x:Class="ProjectName.App" ... >
</Application>
What should you do?
Tool authors - you likely want to be consistent with this change.
Book authors - you probably want to update your examples.
Users - you can rename your files and x:Class attribute value if you like...although there is no need.
Manual steps to Change an existing project (if you want to)
To change your project in EID:
1) right click on Application.xaml, rename to App.xaml
2) right click on Application.xaml.cs or Application.xaml.vb, rename to App.xaml.cs or App.xaml.vb
3) in App.xaml, change x:Class="UntitledProject1.MainApplication" to x:Class="UntitledProject1.App"
4) if C# project, in App.xaml.cs:
change from:
public partial class MainApplication: System.Windows.Application
change to:
public partial class App: System.Windows.Application
5) if VB project, in App.xaml.vb:
change from:
Partial Public Class MainApplication
Inherits System.Windows.Application
change to:
Partial Public Class App
Inherits System.Windows.Application
To change your project in VS "Orcas":
1) right click on MyApp.xaml, rename to App.xaml
2) right click on Application.xaml.cs or Application.xaml.vb, rename to App.xaml.cs or App.xaml.vb
3) in App.xaml, change x:Class="ProjectName.MyApp" to x:Class="ProjectName.App"
4) if C# project, in App.xaml.cs:
change from:
public partial class MyApp : Application
change to:
public partial class App : Application
5) if VB project, in App.xaml.vb:
change from:
Partial Public Class MyApp
Inherits Application
change to:
Partial Public Class App
Inherits Application
Please let us know if you have questions/issues.