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POSerializing a Delegate in WCF
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  1. POSerializing a Delegate in WCF
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    copied!<p>I have a class in a separate assembly that is being exposed via a WCF service. It is referenced in my service.</p> <p>This class has several structs and a single delegate, and I can't figure out how to make sure they get serialized. When I comment out the structs in the class, the object is serialized, otherwise I get errors.</p> <p>I've decorated the structs with [Serializable], but that does not work. Here is an example of one of them:</p> <pre><code>[Serializable] public delegate bool ValidationDelegateInt( pdInt structure ); [Serializable] public struct pdInt { public pdInt(int i, bool b, int rh, int rl, bool mv, bool va, ValidationDelegateInt v) { Value = i; IsRequired = b; RangeHigh = rh; RangeLow = rl; MustValidate = mv; IsValidated = va; Validate = v; } public int Value; public bool IsRequired; public int RangeHigh; public int RangeLow; public bool MustValidate; public bool IsValidated; public ValidationDelegateInt Validate; } </code></pre> <p>Here is a snippet to demonstrate how I am declaring them:</p> <pre><code>[Serializable] public class PDUser : Person, IValidate { #region Members public pdInt SomeRange; public pdString SomeString; </code></pre> <p>Here is some code that illustrates how I want to use them on the client.</p> <pre><code> private void bPDUserSelfDL_Click( object sender, EventArgs e ) { Model.PDUser p = new Model.PDUser(); p.Self( 4 ); p.SomeRange.Value = 1; if ( p.SomeRange.MustValidate ) { bool IsValid = p.SomeRange.Validate( p.SomeRange ); } } </code></pre> <p>Here is the data contract:</p> <pre><code>[DataContract( Name = "PDUserSelfResultSet", Namespace = "V_1" )] public class PDUserSelfResultSet { List&lt;PDUser&gt; m_PDUsers; [DataMember] public List&lt;PDUser&gt; PDUsers { get { return m_PDUsers; } set { m_PDUsers = value; } } } </code></pre> <p>and in my service, here is how I am using it:</p> <pre><code> public PDUserSelfResultSet PDUserSelf( int PersonID ) { try { PDUserSelfResultSet s = new PDUserSelfResultSet(); s.PDUsers = new List&lt;PDUser&gt;(); PDUser p = new PDUser(); s.PDUsers.Add( p.Self( PersonID )); return s; } catch ( System.Net.WebException we ) { string s = we.Message; throw we; } catch ( FaultException fe ) { string s = fe.Message; throw fe; } catch ( Exception e ) { string s = e.Message; throw e; } } </code></pre> <p>And on the client, finally here is how I'm calling it:</p> <pre><code> private void Testing() { WCFHostServiceClient proxy = new WCFHostServiceClient(); try { PDUserSelfResultSet r = new PDUserSelfResultSet(); r = proxy.PDUserSelf( 4 ); List&lt;PDUser&gt; p = r.PDUsers.ToList&lt;PDUser&gt;(); proxy.Close(); } catch ( System.Net.WebException we ) { string s = we.Message; } catch ( System.ServiceModel.CommunicationException ce ) { string s = ce.Message; } } </code></pre> <p>If I comment out the structs in my PDUser class, then in my Testing() method the call succeeds. If I leave the structs in, I'll get a CommunicationException, which in this case means that WCF doesn't know how to deal with the struct.</p> <p>Does anyone know how to create a data contract so that I can use the structs?</p>
 

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