C＃反射异常方法未找到

嗨我正在开发CRM 2011插件，我有反射类型的问题。我已经生成了实体类，我知道该属性存在于类型中，但是当我试图获取它的值时，我收到了有关未找到方法的异常。最愚蠢的部分是，它在我的机器上完美工作，但不适用于客户端。C＃反射异常方法未找到

这里是我的代码（我需要从实体的所有OptionSets并对其进行操作）：

public override void MyExecute() 
     { 
      var fse = TargetEntity.ToEntity<Equipment>(); 
      Type equiptmentType = fse.GetType(); 
      TracingService.Trace("FSE object type: {0}", equiptmentType.FullName); 
      IEnumerable<PropertyInfo> optionSetsProperties = equiptmentType.GetProperties() 
       .Where(x => x.PropertyType == typeof(OptionSetValue)).ToList(); //I'm getting this property from the object type so it must exist. 


      foreach (var optionSetsProperty in optionSetsProperties) 
      { 
       TracingService.Trace("Resolving ResourceGroup on property: {0}", optionSetsProperty.Name); 
       ResolveResourceGroupBySkill(optionSetsProperty, fse); 
       TracingService.Trace("Resoloving ResourceGroup finished"); 
      } 

     } 

private void ResolveResourceGroupBySkill(PropertyInfo optionSetsProperty, Equipment fse) 
     { 
      try 
      { 
       TracingService.Trace("Trying to get value of: {0}", optionSetsProperty.Name); 

       OptionSetValue skillLevel = (OptionSetValue)optionSetsProperty.GetValue(fse); 
       TracingService.Trace("Value equals: {0}", skillLevel); 

      } 
      catch (Exception ex) 
      { 
       TracingService.Trace("An error occured: {0}", ex.Message); 
       Exception inner = ex; 
       while (inner != null) 
       { 
        TracingService.Trace(inner.Message); 
        inner = inner.InnerException; 
       } 
       throw new InvalidOperationException(String.Format("Cannot get value of skill level from property: {0}", optionSetsProperty.Name), ex); 
      } 
     }

这里的登录细节：

Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: Method not found: 'System.Object System.Reflection.PropertyInfo.GetValue(System.Object)'.Detail: 
<OrganizationServiceFault xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.microsoft.com/xrm/2011/Contracts"> 
    <ErrorCode>-2147220891</ErrorCode> 
    <ErrorDetails xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic"> 
    <KeyValuePairOfstringanyType> 
     <d2p1:key>OperationStatus</d2p1:key> 
     <d2p1:value xmlns:d4p1="http://www.w3.org/2001/XMLSchema" i:type="d4p1:string">0</d2p1:value> 
    </KeyValuePairOfstringanyType> 
    </ErrorDetails> 
    <Message>Method not found: 'System.Object System.Reflection.PropertyInfo.GetValue(System.Object)'.</Message> 
    <Timestamp>2014-09-11T12:58:09.2941554Z</Timestamp> 
    <InnerFault i:nil="true" /> 
    <TraceText> 

[OC.CSSFieldService: OC.CSSFieldService.ServiceActivity.MyPlugin] 
[424ad2a7-ea29-e411-be7f-00155d0aa109: OC.CSSFieldService.ServiceActivity.MyPlugin: Create of equipment] 
FSE object type: OC.Data.Equipment 
Resolving ResourceGroup on property: oc_ExpeCommHyper 

</TraceText> 
</OrganizationServiceFault>

正如你可以看到，即使跟踪“尝试获取价值”行不起作用。没有发现异常......我不知道该怎么做。有什么想法吗？

来源

2014-09-11 TrN

好吧我想通了。服务器安装了Microsft .NET 4.0，并且有.NET 4.5。

在.NET 4.5有一个为PropertyInfo.GetValue方法的新的过载 - 它是PropertyInfo.GetValue（obj对象），因为在4.0仅存在PropertyInfo.GetValue（obj对象，对象[]索引）

我只需要替换：

OptionSetValue skillLevel =（OptionSetValue）optionSetsProperty.GetValue（fse）;

与

OptionSetValue skillLevel =（OptionSetValue）optionSetsProperty.GetValue（FSE，NULL）;

工作就像一个魅力！

来源

2014-09-11 14:30:52 TrN

C＃反射异常方法未找到

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