EntityQueryExpression 클래스

아티클
07/17/2015

Defines a complex query to retrieve entity metadata.

네임스페이스: Microsoft.Xrm.Sdk.Metadata.Query
어셈블리: Microsoft.Xrm.Sdk(Microsoft.Xrm.Sdk.dll에 있음)

구문

‘선언
<DataContractAttribute(Name:="EntityQueryExpression", Namespace:="https://schemas.microsoft.com/xrm/2011/Metadata/Query")> _
Public NotInheritable Class EntityQueryExpression
    Inherits MetadataQueryExpression

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

설명

The following example shows the use of an EntityQueryExpression to retrieve entity metadata.

//An entity query expression to combine the filter expressions and property expressions for the query.
EntityQueryExpression entityQueryExpression = new EntityQueryExpression()
{

 Criteria = EntityFilter,
 Properties = EntityProperties,
 AttributeQuery = new AttributeQueryExpression()
 {
  Criteria = AttributeFilter,
  Properties = AttributeProperties
 },
 LabelQuery = labelQuery

};

//Retrieve the metadata for the query without a ClientVersionStamp
RetrieveMetadataChangesResponse initialRequest = getMetadataChanges(entityQueryExpression, null, DeletedMetadataFilters.OptionSet);
   
   
   ...
   
   
   
protected RetrieveMetadataChangesResponse getMetadataChanges(
 EntityQueryExpression entityQueryExpression,
 String clientVersionStamp,
 DeletedMetadataFilters deletedMetadataFilter)
{
 RetrieveMetadataChangesRequest retrieveMetadataChangesRequest = new RetrieveMetadataChangesRequest()
 {
  Query = entityQueryExpression,
  ClientVersionStamp = clientVersionStamp,
  DeletedMetadataFilters = deletedMetadataFilter
 };

 return (RetrieveMetadataChangesResponse)_service.Execute(retrieveMetadataChangesRequest);

}

상속 계층

System.Object
   Microsoft.Xrm.Sdk.Metadata.Query.MetadataQueryBase
     Microsoft.Xrm.Sdk.Metadata.Query.MetadataQueryExpression
      Microsoft.Xrm.Sdk.Metadata.Query.EntityQueryExpression

스레드 보안

이 형식의 공용 정적(Visual Basic에서는 Shared) 구성원은 스레드로부터 안전합니다. 인스턴스 구성원은 스레드로부터 안전하지 않을 수 있습니다.

플랫폼

Development Platforms

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

Target Platforms

Windows 98,Windows 2000,Windows 2000 Server,Windows CE,Windows Server 2008,Windows 98 Second Edition,Pocket PC,스마트 폰,Windows Server 2003,Windows XP Professional,Windows Server 2008,Windows Server 2012,Windows 7,Windows 8,Windows 8.1

Change History

참고 항목

참조

EntityQueryExpression 구성원
Microsoft.Xrm.Sdk.Metadata.Query 네임스페이스

기타 리소스

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

다음을 통해 공유