XML Class Deserialization from Class itself

[Just D.]

All,

What's the easiest way to deserialize class from the class itself? Step by
step. We create some class, add all required USINGs, make this class
serializable, then add a method like:

public string Serialize()
{
XmlSerializer xs = new XmlSerializer(typeof(CClassName));
MemoryStream ms = new MemoryStream();
TextWriter w = new StreamWriter(ms);
xs.Serialize(w, this);
xs=null;
w=null;
byte[] b = ms.ToArray();
ms.Close();
ms=null;
string s = Encoding.UTF8.GetString(b);
return s;
}

It works great, but now we need to deserialize. How can we create this
Deserialize method?

public int DeSerialize(string sXML)
{

What's here?

return 0;
}
We can;t create the deserialized class from the class itself, so what should
we do, create another instance of the object with serialization and then
assign all members one by one? I don't like this idea, but what else? Mabe
I'm missing something...

Just D.

[Ming Chen]

Hi,
I don't quite understand what the problem is. XmlSerializer does have a
Deserialize method that takes in a Stream and returns an Object. And of
course you can create an XmlSerializer the same way you created it in
Serialize method.

Regards
Ming Chen

"Just D." <[e-mail]> wrote in message
news:SQW4d.61136$9Y5.49642@fed1read02...

All,

What's the easiest way to deserialize class from the class itself? Step by
step. We create some class, add all required USINGs, make this class
serializable, then add a method like:

public string Serialize()
{
XmlSerializer xs = new XmlSerializer(typeof(CClassName));
MemoryStream ms = new MemoryStream();
TextWriter w = new StreamWriter(ms);
xs.Serialize(w, this);
xs=null;
w=null;
byte[] b = ms.ToArray();
ms.Close();
ms=null;
string s = Encoding.UTF8.GetString(b);
return s;
}

It works great, but now we need to deserialize. How can we create this
Deserialize method?

public int DeSerialize(string sXML)
{

What's here?

return 0;
}
We can;t create the deserialized class from the class itself, so what should we do, create another instance of the object with serialization and then
assign all members one by one? I don't like this idea, but what else? Mabe
I'm missing something...

Just D.

[Just D.]

Hi,

I don't quite understand what the problem is. XmlSerializer does have a
Deserialize method that takes in a Stream and returns an Object. And of
course you can create an XmlSerializer the same way you created it in
Serialize method.

Thanks for the answer. The problem is that I need to describe all class
members if I want to deserialize from the same class. This code below works,
but I don't like it. Any other way?

Just D.

//-----------------------------------------------------------------------------------------
[Serializable()]
public class CSomeClass : CSomeClassBase
{
//-----------------------------------------------------------------------------------------
public CSomeClass() //Constructor
{
}

//-----------------------------------------------------------------------------------------
public string Serialize()
{
XmlSerializer xs = new XmlSerializer(typeof(CSomeClass));
MemoryStream ms = new MemoryStream();
TextWriter w = new StreamWriter(ms);
xs.Serialize(w, this);
xs=null;
w=null;
byte[] b = ms.ToArray();
ms.Close();
ms=null;
string s = Encoding.UTF8.GetString(b);
return s;
}

//-----------------------------------------------------------------------------------------
public int DeSerialize(string sXML)
{
byte[] ba = Encoding.ASCII.GetBytes(sXML);
MemoryStream ms = new MemoryStream(ba,0,ba.Length);
ms.Seek(0,0);
XmlSerializer ser = new XmlSerializer(typeof(CSomeClass));
CSomeClass ob = (CSomeClass)ser.Deserialize(ms);
this.Copy(ob);
ob = null;
ms.Close();
ms=null;
ser=null;
return 0;
}

//-----------------------------------------------------------------------------------------
public void Copy(CMedicalQuestionDerived o)
{
this.Member1 = o.Member1;
this.Member2 = o.Member2;
this.MemberN = o.MemberN;
}

}

[Just D.]

Hi,

I don't quite understand what the problem is. XmlSerializer does have a
Deserialize method that takes in a Stream and returns an Object. And of
course you can create an XmlSerializer the same way you created it in
Serialize method.

Thanks for the answer. The problem is that I need to describe all class
members if I want to deserialize from the same class. This code below works,
but I don't like it. Any other way?

Just D.

//-----------------------------------------------------------------------------------------
[Serializable()]
public class CSomeClass : CSomeClassBase
{
//-----------------------------------------------------------------------------------------
public CSomeClass() //Constructor
{
}

//-----------------------------------------------------------------------------------------
public string Serialize()
{
XmlSerializer xs = new XmlSerializer(typeof(CSomeClass));
MemoryStream ms = new MemoryStream();
TextWriter w = new StreamWriter(ms);
xs.Serialize(w, this);
xs=null;
w=null;
byte[] b = ms.ToArray();
ms.Close();
ms=null;
string s = Encoding.UTF8.GetString(b);
return s;
}

//-----------------------------------------------------------------------------------------
public int DeSerialize(string sXML)
{
byte[] ba = Encoding.ASCII.GetBytes(sXML);
MemoryStream ms = new MemoryStream(ba,0,ba.Length);
ms.Seek(0,0);
XmlSerializer ser = new XmlSerializer(typeof(CSomeClass));
CSomeClass ob = (CSomeClass)ser.Deserialize(ms);
this.Copy(ob);
ob = null;
ms.Close();
ms=null;
ser=null;
return 0;
}

//-----------------------------------------------------------------------------------------
public void Copy(CSomeClass o)
{
this.Member1 = o.Member1;
this.Member2 = o.Member2;
this.MemberN = o.MemberN;
}

}

[Richard Blewett [DevelopMentor]]

I think the problem is that you can't write

this = serializer.Deserialize();

why not use a static factory method which returns a deserialized object

Regards

Richard Blewett - DevelopMentor
http://staff.develop.com/richardb/weblog

nntp://news.microsoft.com/microsoft.public.dotnet.languages.csharp/<#j**************@TK2MSFTNGP11.phx.gbl>

Hi,
I don't quite understand what the problem is. XmlSerializer does have a
Deserialize method that takes in a Stream and returns an Object. And of
course you can create an XmlSerializer the same way you created it in
Serialize method.

Regards
Ming Chen

"Just D." <[e-mail]> wrote in message
news:SQW4d.61136$9Y5.49642@fed1read02...

All,

What's the easiest way to deserialize class from the class itself? Step by
step. We create some class, add all required USINGs, make this class
serializable, then add a method like:

public string Serialize()
{
XmlSerializer xs = new XmlSerializer(typeof(CClassName));
MemoryStream ms = new MemoryStream();
TextWriter w = new StreamWriter(ms);
xs.Serialize(w, this);
xs=null;
w=null;
byte[] b = ms.ToArray();
ms.Close();
ms=null;
string s = Encoding.UTF8.GetString(b);
return s;
}

It works great, but now we need to deserialize. How can we create this
Deserialize method?

public int DeSerialize(string sXML)
{

What's here?

return 0;
}
We can;t create the deserialized class from the class itself, so what should we do, create another instance of the object with serialization and then
assign all members one by one? I don't like this idea, but what else? Mabe
I'm missing something...

Just D.

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[microsoft.public.dotnet.languages.csharp]

[Just D.]

Hi Richard,

I think the problem is that you can't write
this = serializer.Deserialize();
Exactly! "this" is R/O.
why not use a static factory method which returns a deserialized object

What do you mean? Could you clarify?

Just D.

[Jochen Kalmbach]

Just D. wrote:

Hi Richard,

I think the problem is that you can't write
this = serializer.Deserialize();
why not use a static factory method which returns a deserialized object

What do you mean? Could you clarify?

public static MyObject Deserialize(string s)
{
// ...
return (MyObject) serializer.Deserialize();
}

--
Greetings
Jochen

My blog about Win32 and .NET
http://blog.kalmbachnet.de/

[Michael Earls]

Jochen Kalmbach wrote:

Just D. wrote:

Hi Richard,

I think the problem is that you can't write
this = serializer.Deserialize();
why not use a static factory method which returns a deserialized object

What do you mean? Could you clarify?

public static MyObject Deserialize(string s)
{
// ...
return (MyObject) serializer.Deserialize();
}

Before rolling your own, check out (and implement) the ISerializable
interface. It will open new doors for you. By using a built-in
interface, you'll immediately gain the benefits of all of the other
classes in the framework that utilize ISerializable. It'll give you
complete control over how your object will be serialized/deserialized.
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