Re: Can't serialize ArrayList

From:
go <gameover2008@gmail.com>
Newsgroups:
microsoft.public.dotnet.framework
Date:
Tue, 03 Nov 2009 12:53:45 +0100
Message-ID:
<OgqSKxHXKHA.3720@TK2MSFTNGP04.phx.gbl>
Hello Steven. Always when I want to serialize a type I start with
creating an xml-schema for the type and then (auto-)generate the
classes. I think it saves time and trouble.
///M

Steven skrev:

Hi guys

I'm trying to serialize a class that includes an ArrayList member. Here's
the class:

    [Serializable]
    public class InstantiationData
    {
        public string InstanceTaskAssignedTo;
        public string InstanceMailMsg;
        public DateTime InstanceDueDate;
        public Approvers ADApproversGroup; // this is the ArrayList member //
    }

All other members of this class serialize properly, but the Approvers member
(a class which implements IEnumerator) does not. I've set a breakpoint
immediately after the Serialize method is called and inspected the object
which looks like this:

  <?xml version="1.0" ?>
 <InstantiationData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <InstanceTaskAssignedTo>cs_ap</InstanceTaskAssignedTo>
  <InstanceMailMsg>Test message</InstanceMailMsg>
  <InstanceDueDate>2009-11-09</InstanceDueDate>
  <ADApproversGroup />
  </InstantiationData>

As you can see, the ADApproversGroup node is empty when serialized, but the
class instance shows 2 elements in the arrayList.

I've read that when serializing, it helps to specify the type of object I'm
serializing which I've done as follows:

XmlSerializer serializer = new XmlSerializer(typeof(InstantiationData));

But this doesn't help. Any ideas how to serialize an ArrayList member of a
class?

Tks

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