Classe DeletedMetadataCollection

Artigo
12/03/2014

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

The structure used to return deleted metadata.

Namespace: Microsoft.Xrm.Sdk.Metadata.Query
Assembly: Microsoft.Xrm.Sdk (em Microsoft.Xrm.Sdk.dll)

Sintaxe

'Declaração
<CollectionDataContractAttribute(Name:="DeletedMetadataCollection", Namespace:="https://schemas.microsoft.com/xrm/2011/Metadata/Query")> _
Public NotInheritable Class DeletedMetadataCollection
    Inherits DataCollection(Of DeletedMetadataFilters, DataCollection(Of Guid))

[CollectionDataContractAttribute(Name="DeletedMetadataCollection", Namespace="https://schemas.microsoft.com/xrm/2011/Metadata/Query")] 
public sealed class DeletedMetadataCollection : DataCollection<DeletedMetadataFilters,DataCollection<Guid>>

Comentários

This is the collection returned as the RetrieveMetadataChangesResponse.DeletedMetadata property when the RetrieveMetadataChangesRequest has values set for the ClientVersionStamp and DeletedMetadataFilters properties.

The following code snippets taken from Sample: Query Metadata and Detect Changes show how the DeletedMetadataCollectioncan be used to detect deleted OptionSetMetadata.

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 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.DataCollection
Microsoft.Xrm.Sdk.Metadata.Query.DeletedMetadataCollection

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 98,Windows 2000,Windows 2000 Server,Windows CE,Windows Server 2008,Windows 98 Second Edition,Pocket PC,Smart Phone,Windows Server 2003,Windows XP Professional,Windows Vista,Windows XP

Change History

Consulte também

Referência

Membros de DeletedMetadataCollection
Namespace Microsoft.Xrm.Sdk.Metadata.Query
Retrieve Information about Deleted Metadata

Outros recursos

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

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