c# - ServiceKnownType client side issue -

server side:

service details:

[serviceknowntype("getknowntypes", typeof(helper))] [servicecontract] public interface iappconfigurationmanager {     [operationcontract]     object changeobjectproperty(object mycustomobject); } 

implementation:

public class appconfigurationmanager : iappconfigurationmanager {     public object changeobjectproperty(object mycustomobject)     {         foreach (type type in globals.mycustomtypes)         {             if (type == mycustomobject.gettype())             {                 foreach (propertyinfo property in mycustomobject.gettype().getproperties())                 {                     if(property.name == "id")                     {                         int oldvalue = convert.toint32(property.getvalue(mycustomobject));                         property.setvalue(mycustomobject, oldvalue + 1);                         break;                     };                 };                                 }         }          return mycustomobject;     } } 

helper class used collecting of knowntypes:

public static class helper {     public static ienumerable<type> getknowntypes(icustomattributeprovider provider)     {         globals.mycustomtypes = new list<type>();          system.collections.generic.list<system.type> knowntypes =             new system.collections.generic.list<system.type>();          assembly assembly = assembly.loadfrom(@"d:\wcf\runtimemanagement\bin\debug\runtimemanagement.dll");          foreach (type type in assembly.gettypes())         {             if (type.name.contains("customer") || type.name.contains("account"))             {                 knowntypes.add(type);                 globals.mycustomtypes.add(type);             };         };          return knowntypes;     } } 

classes:

[datacontract] public class customer  {     [datamember]     public int id { get; set; }      [datamember]     public string name { get; set; } }  [datacontract] public class account {     [datamember]     public int id { get; set; }      [datamember]     public string name { get; set; }      [datamember]     public customer accountowner { get; set; } } 

client side:

before invoking service, trying register knowntypes @ client side also:

private void fmmain_load(object sender, eventargs e) {     mycustomtypes = new list<type>();      assembly assembly = assembly.loadfrom(@"d:\wcf\runtimemanagement\bin\debug\runtimemanagement.dll");      foreach (type type in assembly.gettypes())     {         if (type.name.contains("customer") || type.name.contains("account"))         {             mycustomtypes.add(type);              if (type.name == "customer")             {                 customertype = type;             };              foreach (var operation in globals.appconfigmgrclient.endpoint.contract.operations)             {                 operation.knowntypes.add(type);             };         };     };      object mycustomerobject = activator.createinstance(customertype);      foreach (propertyinfo property in mycustomerobject.gettype().getproperties())     {         if (property.name == "id")         {             property.setvalue(mycustomerobject, 111);             break;         };     };      mycustomerobject = globals.appconfigmgrclient.changeobjectproperty(mycustomerobject);      foreach (propertyinfo property in mycustomerobject.gettype().getproperties())     {         if (property.name == "id")         {             debug.writeline(property.getvalue(mycustomerobject).tostring());             break;         };     }; } 

got error here:

mycustomerobject = globals.appconfigmgrclient.changeobjectproperty((runtimemanagement.catalogmanagement.customer)mycustomerobject); 

the formatter threw exception while trying deserialize message: there error while trying deserialize parameter http://tempuri.org/:mycustomobject. innerexception message 'element 'http://tempuri.org/:mycustomobject' contains data type maps name 'http://tempuri.org/:customer'. deserializer has no knowledge of type maps name. consider using datacontractresolver or add type corresponding 'customer' list of known types - example, using knowntypeattribute attribute or adding list of known types passed datacontractserializer.'. please see innerexception more details.

may long post, hope got idea trying here:

1. adding customer , account classes serviceknowntype @ server side helper class.
2. on load event of client side, trying register knowntypes same assembly customer , account exists.
3. then creating instance of customer type, set it's id property 111, send operationcontract called changeobjectproperty. after successful execution, should increment id.

thanks time.