Clase de RetrieveMetadataChangesResponse

Artigo
12/03/2014

Se aplica a: CRM 2015 on-prem, CRM Online

Contains the response from the RetrieveMetadataChangesRequest message.

Espacio de nombres: Microsoft.Xrm.Sdk.Messages
Ensamblado: Microsoft.Xrm.Sdk (en Microsoft.Xrm.Sdk.dll)

Sintaxis

'Declaración
<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

Ejemplo

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("");
  }

 }
}

Jerarquía heredada

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

Seguridad de hilo

Los miembros estáticos públicos (Shared en Visual Basic) de este tipo son seguros para el hilo. No se garantiza que los miembros de instancia sean seguros para el hilo.

Plataformas

Plataformas de desarrollo

Windows Vista, Windows Server 2003 y

Plataformas de destino

Windows Vista,Windows XP

Change History

Vea también

Referencia

Miembros de RetrieveMetadataChangesResponse
Espacio de nombres de Microsoft.Xrm.Sdk.Messages
Clase de RetrieveMetadataChangesRequest

Otros recursos

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

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