Classe LabelQueryExpression

Artigo
12/03/2014

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

Defines the languages for the labels to be retrieved for metadata items that have labels.

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

Sintaxe

'Declaração
<DataContractAttribute(Name:="LabelQueryExpression", Namespace:="https://schemas.microsoft.com/xrm/2011/Metadata/Query")> _
Public NotInheritable Class LabelQueryExpression
    Inherits MetadataQueryBase

[DataContractAttribute(Name="LabelQueryExpression", Namespace="https://schemas.microsoft.com/xrm/2011/Metadata/Query")] 
public sealed class LabelQueryExpression : MetadataQueryBase

Comentários

The number of labels returned for each item depends on the number of language packs installed by the organization. If no additional language packs are installed, there will only be labels for the organization base language. For best performance when additional language packs are installed you can limit labels to those that correspond to the user’s language preference. These preferences can be determined using the values returned by the client-side context getUserLcid function or by querying the UserSettings.UILanguageId value.

The following example shows those portions of the Sample: Query Metadata and Detect Changes which deal with setting the LabelQueryExpression.

private Guid _userId;
private int _languageCode;
   
   
   ...
   
   
   
_userId = ((WhoAmIResponse)_service.Execute(new WhoAmIRequest())).UserId;
_languageCode = RetrieveUserUILanguageCode(_userId);
   
   
   ...
   
   
   
protected int RetrieveUserUILanguageCode(Guid userId)
{
 QueryExpression userSettingsQuery = new QueryExpression("usersettings");
 userSettingsQuery.ColumnSet.AddColumns("uilanguageid", "systemuserid");
 userSettingsQuery.Criteria.AddCondition("systemuserid", ConditionOperator.Equal, userId);
 EntityCollection userSettings = _service.RetrieveMultiple(userSettingsQuery);
 if (userSettings.Entities.Count > 0)
 {
  return (int)userSettings.Entities[0]["uilanguageid"];
 }
 return 0;
}
   
   
   ...
   
   
   

//A label query expression to limit the labels returned to only those for the user's preferred language
LabelQueryExpression labelQuery = new LabelQueryExpression();
labelQuery.FilterLanguages.Add(_languageCode);

Hierarquia de Herança

System.Object
Microsoft.Xrm.Sdk.Metadata.Query.MetadataQueryBase
Microsoft.Xrm.Sdk.Metadata.Query.LabelQueryExpression

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 LabelQueryExpression
Namespace Microsoft.Xrm.Sdk.Metadata.Query

Outros recursos

Query and Capture Changes to Metadata
Customize Labels to Support Multiple Languages
Sample: Query Metadata and Detect Changes

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