在Dynamics CRM插件中生成的Microsoft.Xrm.Sdk.SaveChangesException

以下代码是在Microsoft Dynamics CRM插件中创建的。该代码在更新productEntity后执行。 productEntity中有一个自定义字段，名为labourRate。所有字段选择要传递给插件：在Dynamics CRM插件中生成的Microsoft.Xrm.Sdk.SaveChangesException

protected void ExecutePostProductUpdate(LocalPluginContext localContext) 
    { 
     if (localContext == null) 
     { 
      throw new ArgumentNullException("localContext"); 
     } 

     IPluginExecutionContext context = localContext.PluginExecutionContext; 

     //Get the IOrganizationService 
     IOrganizationService service = localContext.OrganizationService; 

     //create the service context 
     var ServiceContext = new OrganizationServiceContext(service); 
     ITracingService tracingService = localContext.TracingService; 

     // The InputParameters collection contains all the data passed in the message request. 
     if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity) 
     { 
      // Obtain the target entity from the input parmameters. 
      Entity entity = (Entity)context.InputParameters["Target"]; 

      // get the pre entity image 
      Entity preImageEntity = (context.PreEntityImages != null && context.PreEntityImages.Contains(this.preImageAlias)) ? context.PreEntityImages[this.preImageAlias] : null; 

      // get the post entity image 
      Entity postImageEntity = (context.PostEntityImages != null && context.PostEntityImages.Contains(this.postImageAlias)) ? context.PostEntityImages[this.postImageAlias] : null; 

      Money price = new Money(); 

      price = (Money)postImageEntity.Attributes["price"]; 

      var products = from p in ServiceContext.CreateQuery("product") 
          select p; 

      foreach (var product in products) 
      { 
       Entity e = (Entity)product; 
       Money newPrice = new Money(); 
       decimal labourRate = 1; 

       // get the preimage and postimage telephone1 value 
       if (preImageEntity.Attributes.Contains("new_labourrate")) 
       { 
        try 
        { 
         labourRate = (decimal)e["new_labourrate"]; 
        } 
        catch 
        { 

        } 
       } 

       newPrice.Value = price.Value * labourRate; 
       e["price"] = newPrice; 
       ServiceContext.UpdateObject(e); 
      } 

      ServiceContext.SaveChanges(); 
     } 
    }

上面的代码会导致以下错误：

Unhandled Exception: 
System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, 
Microsoft.Xrm.Sdk, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: 
Unexpected exception from plug-in (Execute): Plugins1.PostProductUpdate: 
Microsoft.Xrm.Sdk.SaveChangesException: An error occured while processing this request. 
Detail: 
<OrganizationServiceFault xmlns:i="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://schemas.microsoft.com/xrm/2011/Contracts"> 
<ErrorCode>-2147220956</ErrorCode> 
<ErrorDetails xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic" /> 
<Message>Unexpected exception from plug-in (Execute): Plugins1.PostProductUpdate: 
Microsoft.Xrm.Sdk.SaveChangesException: An error occured while processing this request. </Message> 
<Timestamp>2013-08-22T08:26:27.6655137Z</Timestamp> 
<InnerFault i:nil="true" /> 
<TraceText> 
[Plugins1: Plugins1.PostProductUpdate] 
[08445d1c-5e06-e311-b80b-3c4a92dbc855: PostProductUpdate] 
</TraceText> 
</OrganizationServiceFault>

来源

2013-08-22 LiamHall

你内部部署或在线？如果您在On Premise附加到Microsoft Dynamics CRM服务器上的CRM过程并调试您的代码以查明哪一行引发异常。

如果你在线，恐怕你一直在逐行跟踪。

更多的信息在这里 http://msdn.microsoft.com/en-us/library/gg328574.aspx

来源

2013-08-23 13:55:30

在Dynamics CRM插件中生成的Microsoft.Xrm.Sdk.SaveChangesException

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