Adit > Developer Pages > Porting to Phone 7

Porting To Phone 7

Issues for Developers

What we have found so far ..........

Positives

• The IDE is familiar
• It all seems to work
• You will be up and running quickly

Negatives

• You do not seem to be able to import projects from 2005/2008
• Support for earlier VB syntax is absent
• Consuming a web service is not quite the piece of cake it was in 2008
• File handling needs a bit of a re-think
• User controls are limited

For Developers coming from a VB background

Once you have your Hello Phone 7 app up and running, you will no doubt want to progress
to more exciting things, and here are a few pointers that may help

Showing another form

Dim Work As String = "/mainpage.xaml"
NavigationService.Navigate(New Uri(Work, UriKind.Relative))

Passing data to another form

On the calling form

Dim Work As String = "/dayform.xaml?"
Work = Work + "UserID="
Work = Work + ThisUser.ToString
Work = Work + "&"
Work = Work + "EmpID="
Work = Work + ThisEmployee.ToString

NavigationService.Navigate(New Uri(Work, UriKind.Relative))
On the receiving form

ThisUser = NavigationContext.QueryString("UserID")
ThisEmployee = NavigationContext.QueryString("EmpID")

Simple file handling

Dim FileName As String = "kinfo.dat"
Dim store As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForApplication()

Try
Dim sw As StreamWriter = New StreamWriter(store.OpenFile(FileName, FileMode.Create, FileAccess.Write))
sw.WriteLine(Date.Now)
sw.Close()
Catch ex As IsolatedStorageException
MessageBox.Show(ex.Message)
End Try


Dim FileName As String = "kinfo.dat"
Dim Line As String
Dim store As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForApplication()

Try
Dim sw As StreamReader = New StreamReader(store.OpenFile(FileName, FileMode.Open, FileAccess.Read))
Line = sw.ReadLine
sw.Close()
Catch ex As IsolatedStorageException
MessageBox.Show(ex.Message)
End Try

Consuming a web service