应用到: CRM 2015 on-prem, CRM Online
Defines the languages for the labels to be retrieved for metadata items that have labels.
命名空间: Microsoft.Xrm.Sdk.Metadata.Query
程序集: Microsoft.Xrm.Sdk (在 Microsoft.Xrm.Sdk.dll 中)
语法
声明
<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
备注
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);
继承层次结构
System.Object
Microsoft.Xrm.Sdk.Metadata.Query.MetadataQueryBase
Microsoft.Xrm.Sdk.Metadata.Query.LabelQueryExpression
线程安全性
此类型的所有公共静态（Visual Basic 中的 Shared）成员都是线程安全成员。不保证任何实例成员是线程安全成员。
平台
开发平台
Windows Vista、Windows Server 2003 和
目标平台
Windows 98,Windows 2000,Windows 2000 Server,Windows CE,Windows Server 2008,Windows 98 Second Edition,Pocket PC,智能电话,Windows Server 2003,Windows XP Professional,Windows Vista,Windows XP
Change History
另请参阅
参考
LabelQueryExpression 成员
Microsoft.Xrm.Sdk.Metadata.Query 命名空间
其他资源
Query and Capture Changes to Metadata
Customize Labels to Support Multiple Languages
Sample: Query Metadata and Detect Changes
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