Classe RetrieveMetadataChangesResponse

Artigo
12/03/2014

Aplica-se a: CRM 2015 on-prem, CRM Online

Contains the response from the RetrieveMetadataChangesRequest message.

Namespace: Microsoft.Xrm.Sdk.Messages
Assembly: Microsoft.Xrm.Sdk (em Microsoft.Xrm.Sdk.dll)

Sintaxe

'Declaração
<DataContractAttribute(Namespace:="https://schemas.microsoft.com/xrm/2011/Contracts")> _
Public NotInheritable Class RetrieveMetadataChangesResponse
    Inherits OrganizationResponse

[DataContractAttribute(Namespace="https://schemas.microsoft.com/xrm/2011/Contracts")] 
public sealed class RetrieveMetadataChangesResponse : OrganizationResponse

Exemplo

The following code snippets from Sample: Query Metadata and Detect Changes show the use of RetrieveMetadataChangesResponseDeletedMetadata and EntityMetadata properties.

protected String updateOptionLabelList(EntityQueryExpression entityQueryExpression, String clientVersionStamp)
{
 //Retrieve metadata changes and add them to the cache
 RetrieveMetadataChangesResponse updateResponse;
 try
 {
  updateResponse = getMetadataChanges(entityQueryExpression, clientVersionStamp, DeletedMetadataFilters.OptionSet);
  addOptionLabelsToCache(updateResponse.EntityMetadata, true);
  removeOptionLabelsFromCache(updateResponse.DeletedMetadata, true);

 }
 catch (FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault> ex)
 {
  // Check for ErrorCodes.ExpiredVersionStamp (0x80044352)
  // Will occur when the timestamp exceeds the Organization.ExpireSubscriptionsInDays value, which is 90 by default.
  if (ex.Detail.ErrorCode == unchecked((int)0x80044352))
  {
   //reinitialize cache
   _optionLabelList.Clear();

   updateResponse = getMetadataChanges(entityQueryExpression, null, DeletedMetadataFilters.OptionSet);
   //Add them to the cache and display the changes
   addOptionLabelsToCache(updateResponse.EntityMetadata, true);

  }
  else
  {
   throw ex;
  }

 }
 return updateResponse.ServerVersionStamp;
}
   
   
   ...
   
   
   
protected void addOptionLabelsToCache(EntityMetadataCollection entityMetadataCollection, Boolean showChanges)
{

 List<OptionSetOption> changes = new List<OptionSetOption>();

 foreach (EntityMetadata em in entityMetadataCollection)
 {
  foreach (AttributeMetadata am in em.Attributes)
  {
   switch (am.AttributeType)
   {
    case AttributeTypeCode.Boolean:
     BooleanAttributeMetadata booleanAttribute = (BooleanAttributeMetadata)am;
     //Labels will not be included if they aren't new
     if (booleanAttribute.OptionSet.FalseOption.Label.UserLocalizedLabel != null)
     {
      changes.Add(new OptionSetOption(
      (Guid)booleanAttribute.OptionSet.MetadataId,
      0, 
      booleanAttribute.OptionSet.FalseOption.Label.UserLocalizedLabel.Label)
      );
     }
     //Labels will not be included if they aren't new
     if (booleanAttribute.OptionSet.TrueOption.Label.UserLocalizedLabel != null)
     {
      changes.Add(new OptionSetOption(
      (Guid)booleanAttribute.OptionSet.MetadataId,
      1, 
      booleanAttribute.OptionSet.TrueOption.Label.UserLocalizedLabel.Label));
     }
     break;
    default:
     EnumAttributeMetadata optionsetAttribute = (EnumAttributeMetadata)am;
     foreach (OptionMetadata option in optionsetAttribute.OptionSet.Options)
     {
      //Labels will not be included if they aren't new
      if (option.Label.UserLocalizedLabel != null)
      {
       changes.Add(new OptionSetOption(
        (Guid)optionsetAttribute.OptionSet.MetadataId,
       (int)option.Value, 
       option.Label.UserLocalizedLabel.Label));
      }        
     }
     break;
   }
  }
 }

 _optionLabelList.AddRange(changes);

 if (showChanges)
 {

  if (changes.Count > 0)
  {
   Console.WriteLine("{0} option labels for {1} entities were added to the cache.", changes.Count, entityMetadataCollection.Count);
   Console.WriteLine("{0} Option Labels cached", _optionLabelList.Count);
  }
  else
  { Console.WriteLine("No option labels were added to the cache."); }

 }
}
   
   
   ...
   
   
   
protected void removeOptionLabelsFromCache(DeletedMetadataCollection DeletedMetadata, Boolean showChanges)
{
 List<OptionSetOption> optionSetOptionsToRemove = new List<OptionSetOption>();

 if (DeletedMetadata.Keys.Contains(DeletedMetadataFilters.OptionSet))
 {
  DataCollection<Guid> optionsetmetadataids = (DataCollection<Guid>)DeletedMetadata[DeletedMetadataFilters.OptionSet];
  foreach (Guid metadataid in optionsetmetadataids)
  {
   foreach (OptionSetOption oso in _optionLabelList)
   {
    if (metadataid == oso.optionsetId)
    {
     optionSetOptionsToRemove.Add(oso);
    }
   }
  }
 }
 foreach (OptionSetOption option in optionSetOptionsToRemove)
 {
  _optionLabelList.Remove(option);
 }
 if (showChanges)
 {
  if (optionSetOptionsToRemove.Count > 0)
  {
   Console.WriteLine("{0} Option Labels removed", optionSetOptionsToRemove.Count);
   Console.WriteLine("{0} Total Option Labels currently cached", _optionLabelList.Count);
   Console.WriteLine("");
  }
  else
  {
   Console.WriteLine("No Option Labels removed.");
   Console.WriteLine("");
  }

 }
}

Hierarquia de Herança

System.Object
Microsoft.Xrm.Sdk.OrganizationResponse
Microsoft.Xrm.Sdk.Messages.RetrieveMetadataChangesResponse

Segurança do Thread

Todos os membros estáticos (Shared in Visual Basic) desse tipo são protegidos por thread. Não há nenhum garantia de que os membros de instância sejam protegidos por thread.

Plataformas

Plataformas de desenvolvimento

Windows Vista, Windows Server 2003 e

Plataformas de destino

Windows Vista,Windows XP

Change History

Consulte também

Referência

Membros de RetrieveMetadataChangesResponse
Namespace Microsoft.Xrm.Sdk.Messages
Classe RetrieveMetadataChangesRequest

Outros recursos

Query and Capture Changes to Metadata
Sample: Query Metadata and Detect Changes

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