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Serialization

There was such problem,

At compilation with SP1 (dotnetfx11SP1)

On computers without him{it} some objects.

For example (System. Collections. Comparer) and together with it{him} and
all objects in which it{he} is used, for example ArrayList

Whether it is possible to bypass it somehow
--
Best regards,
Alexander Zaharov
msn: az******@hotmai l.com
icq: 230553120

Nov 16 '05 #1
4 3302
Alexander <za*****@lencom .com> wrote:
There was such problem,

At compilation with SP1 (dotnetfx11SP1)

On computers without him{it} some objects.

For example (System. Collections. Comparer) and together with it{him} and
all objects in which it{he} is used, for example ArrayList

Whether it is possible to bypass it somehow


I'm afraid your question isn't very clear at all.

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Nov 16 '05 #2
When i store rule on PC with .NET.SP1 i cant restore them from PC without
SP1.
An i get this Error:

System.Runtime. Serialization.S erializationExc eption:
Possible Version mismatch. Type System.Collecti ons.Comparer has 1 members,
number of members deserialized is 0.

at
System.Runtime. Serialization.F ormatters.Binar y.ReadObjectInf o.GetMemberType s(String[]
inMemberNames)
at System.Runtime. Serialization.F ormatters.Binar y.ObjectMap..ct or(String
objectName, String[] memberNames, BinaryTypeEnum[] binaryTypeEnumA , Object[]
typeInformation A, Int32[] memberAssemIds, ObjectReader objectReader, Int32
objectId, BinaryAssemblyI nfo assemblyInfo, SizedArray
assemIdToAssemb lyTable)
at System.Runtime. Serialization.F ormatters.Binar y.ObjectMap.Cre ate(String
name, String[] memberNames, BinaryTypeEnum[] binaryTypeEnumA , Object[]
typeInformation A, Int32[] memberAssemIds, ObjectReader objectReader, Int32
objectId, BinaryAssemblyI nfo assemblyInfo, SizedArray
assemIdToAssemb lyTable)
at
System.Runtime. Serialization.F ormatters.Binar y.__BinaryParse r.ReadObjectWit hMapTyped(Binar yObjectWithMapT yped
record)
at
System.Runtime. Serialization.F ormatters.Binar y.__BinaryParse r.ReadObjectWit hMapTyped(Binar yHeaderEnum
binaryHeaderEnu m)
at System.Runtime. Serialization.F ormatters.Binar y.__BinaryParse r.Run()
at
System.Runtime. Serialization.F ormatters.Binar y.ObjectReader. Deserialize(Hea derHandler
handler, __BinaryParser serParser, Boolean fCheck, IMethodCallMess age
methodCallMessa ge)
at
System.Runtime. Serialization.F ormatters.Binar y.BinaryFormatt er.Deserialize( Stream
serializationSt ream, HeaderHandler handler, Boolean fCheck,
IMethodCallMess age methodCallMessa ge)
at
System.Runtime. Serialization.F ormatters.Binar y.BinaryFormatt er.Deserialize( Stream
serializationSt ream, HeaderHandler handler)
at
System.Runtime. Serialization.F ormatters.Binar y.BinaryFormatt er.Deserialize( Stream
serializationSt ream)
at OptOutManager.R ules.Get(Int32 idx) in D:\Projects\Rul es\Rules.cs:lin e
33

Whether it is possible to bypass it somehow

[Serializable]
public class Rule: ISerializable{
public bool Checked;
public string Name;
public Conditions conditions;
public Actions actions;
public string Description;
// Some methods declarations
}

[Serializable]
public class Conditions: ArrayList {
public ConditionsOpera torEnum Operator = ConditionsOpera torEnum.Or;

new public Condition this[int index]{
get {return (Condition)base[index];}
set {base[index] = value;}
}
// Some methods declarations
}

[Serializable]
public class Condition: ISerializable {
public bool Checked;
public string field;
public string word;
public ConditionType Type;
public bool MatchCase;
// Some methods declarations
}

[Serializable]
public class Action {
public bool Checked;
public ToDo todo;
public ComposeEmail sendEmail;
public Script script;
public DatabaseAction dbAction;
public ListsSubUnsub listsSubUnsub;
// Some methods declarations
}

[Serializable]
public class Actions: ArrayList {
public new Action this[int index]{
get {return (Action)base[index];}
set {base[index] = value;}
}
}

Nov 16 '05 #3
Alexander <za*****@lencom .com> wrote:
When i store rule on PC with .NET.SP1 i cant restore them from PC without
SP1.


Right. Effectively, you've got different versions of ArrayList. I'm not
entirely surprised serialization doesn't work in this case, to be
honest. Not sure that the error message is as useful as it could be,
but I think it's generally unlikely that serialization will work
between different versions of the framework. Then again, I'm not a
serialization expert by any stretch of the imagination.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Nov 16 '05 #4
"Jon Skeet [C# MVP]" <sk***@pobox.co m> wrote in message
news:MP******** *************** *@msnews.micros oft.com...
Right. Effectively, you've got different versions of ArrayList. I'm not
entirely surprised serialization doesn't work in this case, to be
honest. Not sure that the error message is as useful as it could be,
but I think it's generally unlikely that serialization will work
between different versions of the framework.


I would think that if the serialized bits are going to be persisted to disk
it would be best (safest) policy to do your own serialization. You would
also want to be sure to store a version number in the image so that later
versions can restore successfully.

-- Alan
Nov 16 '05 #5

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