Set [IgnoreDataMember] attribute dynamically? RSS

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  vmhatup

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  Set [IgnoreDataMember] attribute dynamically?

  Feb 10, 2012 12:25 PM|LINK

  My class has several datamembers, but let's say a few of them end up being null or empty.

  How can I set those particular members to [IgnoreDataMember] so that they're not exposed in the result?

  Thanks.

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  kushalrdalal

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  Re: Set [IgnoreDataMember] attribute dynamically?

  Feb 10, 2012 12:45 PM|LINK

  You do not have to make it ignore in order to not expose.

  You can expose it and the client will not pass anything.

  Like

  <FirstName></FirstName>

  You have to make sure that once it is returned by client before processing you check for null and do the needful.

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  vmhatup

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  Re: Set [IgnoreDataMember] attribute dynamically?

  Feb 10, 2012 12:48 PM|LINK

  Thanks for your reply.

  I cannot even display the xml tag. The member must not be displayed in the XML if the member is null or empty.

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  vmhatup

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  Re: Set [IgnoreDataMember] attribute dynamically?

  Feb 10, 2012 01:28 PM|LINK

  I used 

  [DataMember(EmitDefaultValue = false)]

  • Marked as answer by peter pi - msft on Feb 17, 2012 12:55 AM
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  kushalrdalal

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  Re: Set [IgnoreDataMember] attribute dynamically?

  Feb 10, 2012 01:33 PM|LINK

  As per microsoft they are not recommedning to use emitdefaultvalue= false.

  Check this links -

  http://msdn.microsoft.com/en-us/library/system.runtime.serialization.datamemberattribute.emitdefaultvalue.aspx

  http://stackoverflow.com/questions/5382402/why-is-using-datamemberemitdefaultvalue-false-not-recommended

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