Serialization and Array

[Franz]

Let me describe the flow of my program first.
1. Deserialize data from xml file.
2. Addition of "PersonType" class to the AllPersonalData.
3. Serialize data back to the xml file.

My question is I have to use an array PersonType[] in the AllPersonalData class. But if I have to implement the "Addition of
PersonalType" (i.e. the step 2), I have to use ArrayList instead of a fixed length array. I know that I can use the ArrayList as an
intermediate, and then convert it to fixed length array when I do Serialization. But is there any alternative which is more direct?
Thanks.

The following are class declaration.

[System.Xml.Serialization.XmlRootAttribute("AllPers onalData", Namespace="", IsNullable=false)]
public class AllPersonalData {
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("Pers on")]
public PersonType[] Person;
}

public class PersonType {
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string Name;
}

--
My C++ and C# ( Traditional Chinese ) Web Site : www.franzwong.com/Home.php

[Franz]

Do you mean I can first use the array for deserialization, and turn it to ArrayList, then I can directly serialize ArrayList?

--
My C++ and C# ( Traditional Chinese ) Web Site : www.franzwong.com/Home.php
"Christoph" <ch*************@austin.rr.com> ¼¶¼g©ó¶l¥ó·s»D:#h**************@tk2msftngp13.phx.g bl...

Franz,

Why don't you just serialize the ArrayList? ArrayLists work just as good as
typed arrays.

HTH,
Christoph Schittko
Software Architect, .NET Mentor
MS MVP XML .NET
"Franz" <ho******@yahoo.com.hk> wrote in message
news:uq*************@tk2msftngp13.phx.gbl...

Let me describe the flow of my program first.
1. Deserialize data from xml file.
2. Addition of "PersonType" class to the AllPersonalData.
3. Serialize data back to the xml file.

My question is I have to use an array PersonType[] in the AllPersonalData

class. But if I have to implement the "Addition of

PersonalType" (i.e. the step 2), I have to use ArrayList instead of a

fixed length array. I know that I can use the ArrayList as an

intermediate, and then convert it to fixed length array when I do

Serialization. But is there any alternative which is more direct?

Thanks.

The following are class declaration.

[System.Xml.Serialization.XmlRootAttribute("AllPers onalData",

Namespace="", IsNullable=false)]

public class AllPersonalData {
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("Pers on")]
public PersonType[] Person;
}

public class PersonType {
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string Name;
}

--
My C++ and C# ( Traditional Chinese ) Web Site :

www.franzwong.com/Home.php

[Christoph Schittko [MVP]]

You can change your AllPersonData class like this and you can dynamically
add PersonType objects to the collection.

[System.Xml.Serialization.XmlRootAttribute("AllPers onalData", Namespace="",
IsNullable=false)]
public class AllPersonalData {
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("Pers on", typeof(
PersonType))]
public ArrayList Person;
}

This is all you need, you can serialize and deserialize this class. You can
also write your own collection class derived from CollectionBase if you want
type-safety. The Framework SDK docs show an example, IIRC.

HTH,
Christoph Schittko
Software Architect, .NET Mentor
MS MVP XML .NET

"Franz" <ho******@yahoo.com.hk> wrote in message
news:eU**************@TK2MSFTNGP11.phx.gbl...

Do you mean I can first use the array for deserialization, and turn it to ArrayList, then I can directly serialize ArrayList?
--
My C++ and C# ( Traditional Chinese ) Web Site : www.franzwong.com/Home.php

"Christoph" <ch*************@austin.rr.com>

¼¶¼g©ó¶l¥ó·s»D:#h**************@tk2msftngp13.phx.g bl...

Franz,

Why don't you just serialize the ArrayList? ArrayLists work just as good as typed arrays.

HTH,
Christoph Schittko
Software Architect, .NET Mentor
MS MVP XML .NET
"Franz" <ho******@yahoo.com.hk> wrote in message
news:uq*************@tk2msftngp13.phx.gbl...

Let me describe the flow of my program first.
1. Deserialize data from xml file.
2. Addition of "PersonType" class to the AllPersonalData.
3. Serialize data back to the xml file.

My question is I have to use an array PersonType[] in the

AllPersonalData class. But if I have to implement the "Addition of

PersonalType" (i.e. the step 2), I have to use ArrayList instead of a

fixed length array. I know that I can use the ArrayList as an

intermediate, and then convert it to fixed length array when I do

Serialization. But is there any alternative which is more direct?

Thanks.

The following are class declaration.

[System.Xml.Serialization.XmlRootAttribute("AllPers onalData",

Namespace="", IsNullable=false)]

public class AllPersonalData {
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("Pers on")]
public PersonType[] Person;
}

public class PersonType {
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string Name;
}

--
My C++ and C# ( Traditional Chinese ) Web Site :

www.franzwong.com/Home.php

[Franz]

That's what I want.
Thank you.

--
My C++ and C# ( Traditional Chinese ) Web Site : www.franzwong.com
"Christoph Schittko [MVP]" <ch********************@austin.rr.com> ¼¶¼g©ó¶l¥ó·s»D:e7**************@TK2MSFTNGP10.phx.g bl...

You can change your AllPersonData class like this and you can dynamically
add PersonType objects to the collection.

[System.Xml.Serialization.XmlRootAttribute("AllPers onalData", Namespace="",
IsNullable=false)]
public class AllPersonalData {
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("Pers on", typeof(
PersonType))]
public ArrayList Person;
}

This is all you need, you can serialize and deserialize this class. You can
also write your own collection class derived from CollectionBase if you want
type-safety. The Framework SDK docs show an example, IIRC.

HTH,
Christoph Schittko
Software Architect, .NET Mentor
MS MVP XML .NET

"Franz" <ho******@yahoo.com.hk> wrote in message
news:eU**************@TK2MSFTNGP11.phx.gbl...

Do you mean I can first use the array for deserialization, and turn it to

ArrayList, then I can directly serialize ArrayList?

--
My C++ and C# ( Traditional Chinese ) Web Site :

www.franzwong.com/Home.php

"Christoph" <ch*************@austin.rr.com>

¼¶¼g©ó¶l¥ó·s»D:#h**************@tk2msftngp13.phx.g bl...

Franz,

Why don't you just serialize the ArrayList? ArrayLists work just as good as typed arrays.

HTH,
Christoph Schittko
Software Architect, .NET Mentor
MS MVP XML .NET
"Franz" <ho******@yahoo.com.hk> wrote in message
news:uq*************@tk2msftngp13.phx.gbl...
> Let me describe the flow of my program first.
> 1. Deserialize data from xml file.
> 2. Addition of "PersonType" class to the AllPersonalData.
> 3. Serialize data back to the xml file.
>
> My question is I have to use an array PersonType[] in the AllPersonalData class. But if I have to implement the "Addition of
> PersonalType" (i.e. the step 2), I have to use ArrayList instead of a
fixed length array. I know that I can use the ArrayList as an
> intermediate, and then convert it to fixed length array when I do
Serialization. But is there any alternative which is more direct?
> Thanks.
>
> The following are class declaration.
>
> [System.Xml.Serialization.XmlRootAttribute("AllPers onalData",
Namespace="", IsNullable=false)]
> public class AllPersonalData {
> /// <remarks/>
> [System.Xml.Serialization.XmlElementAttribute("Pers on")]
> public PersonType[] Person;
> }
>
> public class PersonType {
> /// <remarks/>
> [System.Xml.Serialization.XmlAttributeAttribute()]
> public string Name;
> }
>
> --
> My C++ and C# ( Traditional Chinese ) Web Site :
www.franzwong.com/Home.php
>
>
>
>