应用到: CRM 2015 on-prem, CRM Online
Specifies the properties for which non-null values are returned from a query.
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:="MetadataPropertiesExpression", Namespace:="https://schemas.microsoft.com/xrm/2011/Metadata/Query")> _
Public NotInheritable Class MetadataPropertiesExpression
Implements IExtensibleDataObject
[DataContractAttribute(Name="MetadataPropertiesExpression", Namespace="https://schemas.microsoft.com/xrm/2011/Metadata/Query")]
public sealed class MetadataPropertiesExpression : IExtensibleDataObject
备注
When the metadata object is instantiated all properties are included but any properties not specified by the MetadataPropertiesExpression will contain null values.
继承层次结构
System.Object
Microsoft.Xrm.Sdk.Metadata.Query.MetadataPropertiesExpression
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
另请参阅
参考
MetadataPropertiesExpression 成员
Microsoft.Xrm.Sdk.Metadata.Query 命名空间
其他资源
Query and Capture Changes to Metadata
Sample: Query Metadata and Detect Changes
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