Serialize

Question

Hi, I'm trying to perfom Serializing/De- function. But I can't get how it's works in Win8.

I have a class Card needed to be serialized. 

> Dim A As New XmlSerializer(GetType(Card))

Then I need to write this data to localstorage file

MSDN example shows:

' Create a FileStream to write with.
Dim writer As New FileStream(filename, FileMode.Create)
' Serialize the object, and close the TextWriter
serializer.Serialize(writer, i)
writer.Close()

But there is no kind of FileStream in Win8. How to create file stream and write serialized data there?..

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Aleksey

Answer 1

Yes there are file streams in WinRT.  There is also support for XML serialization:

http://social.msdn.microsoft.com/Search/en-US/windows/apps?query=serialize%20XML&Refinement=180&emptyWatermark=true&searchButtonTooltip=Search&ac=2

http://msdn.microsoft.com/en-us/library/bdxxw552(v=vs.110).aspx

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Jeff Sanders (MSFT)

@jsandersrocks - Windows Store Developer Solutions @WSDevSol
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Answer 2

Windows.Storage.Streams has the streams you want.

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Matt Small - Microsoft Escalation Engineer - Forum Moderator
If my reply answers your question, please mark this post as answered.

NOTE: If I ask for code, please provide something that I can drop directly into a project and run (including XAML), or an actual application project. I'm trying to help a lot of people, so I don't have time to figure out weird snippets with undefined objects and unknown namespaces.

Answer 3

Please, check before post.

About your first link: http://social.msdn.microsoft.com/Search/en-US/windows/apps?query=serialize%20XML&Refinement=180&emptyWatermark=true&searchButtonTooltip=Search&ac=2

I'm opening the first XmlSerializer Class (System.Xml.Serialization)‎ and coping the example:

Dim serializer As New XmlSerializer(GetType(Card))
Dim writer As New StreamWriter("myfile.txt") <--- Error: Value of type 'String' cannot be converted to 'System.IO.Stream'.
serializer.Serialize(writer, Cards)
writer.Close() <--- Error 'Close' is not a member of 'System.IO.StreamWriter'.

Ok, fine, I'm opening your second link and coping example from there:

Dim serializer As New XmlSerializer(GetType(Card))
Dim writer As New FileStream("myfile.txt", FileMode.Create) <--- Error 1 Type 'FileStream' is not defined
serializer.Serialize(writer, Cards )
writer.Close()

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Aleksey

Answer 4

Is it possible to provide workable example? Thanks.

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Aleksey

Answer 5

You are missing the using statements you need.

Full and complete sample is here: http://msdn.microsoft.com/en-us/library/system.xml.serialization.xmlserializer(v=vs.110).aspx?cs-save-lang=1&cs-lang=vb#code-snippet-5

Run this first and ensure you understand it and you will be able to apply this to your situation.

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Jeff Sanders (MSFT)

@jsandersrocks - Windows Store Developer Solutions @WSDevSol
Getting Started With Windows Azure Mobile Services development? Click here
Getting Started With Windows Phone or Store app development? Click here
My Team Blog: Windows Store & Phone Developer Solutions
My Blog: Http Client Protocol Issues (and other fun stuff I support)

Answer 6

Here is how should looks reply

Dim Cards As New ObservableCollection(Of Card)
Cards.Add(New Card)
Cards(0).Name = "Hello!"

Dim sw = New StringWriter
Dim serializer = New XmlSerializer(GetType(ObservableCollection(Of Card)))
serializer.Serialize(sw, Cards)
Dim B As String = sw.ToString()

Dim Cards2 As New ObservableCollection(Of Card)
Dim sr As New StringReader(B)
Dim deserializer = New XmlSerializer(GetType(ObservableCollection(Of Card)))
Cards2 = deserializer.Deserialize(sr)

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Aleksey