MetadataQueryExpression Class

Статья
10/20/2016

Applies To: Dynamics CRM 2015

Represents the abstract base class for constructing a metadata query.

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

Inheritance Hierarchy

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

Syntax

[KnownTypeAttribute(typeof(EntityQueryExpression))]
[DataContractAttribute(Name = "MetadataQueryExpression", Namespace = "https://schemas.microsoft.com/xrm/2011/Metadata/Query")]
[KnownTypeAttribute(typeof(LabelQueryExpression))]
[KnownTypeAttribute(typeof(AttributeQueryExpression))]
[KnownTypeAttribute(typeof(RelationshipQueryExpression))]
public abstract class MetadataQueryExpression : MetadataQueryBase

[KnownTypeAttribute((EntityQueryExpression^::typeid))]
[DataContractAttribute(Name = "MetadataQueryExpression", Namespace = "https://schemas.microsoft.com/xrm/2011/Metadata/Query")]
[KnownTypeAttribute((LabelQueryExpression^::typeid))]
[KnownTypeAttribute((AttributeQueryExpression^::typeid))]
[KnownTypeAttribute((RelationshipQueryExpression^::typeid))]
public ref class MetadataQueryExpression abstract : MetadataQueryBase

[<AbstractClass>]
[<KnownTypeAttribute(typeof(EntityQueryExpression))>]
[<DataContractAttribute(Name = "MetadataQueryExpression", Namespace = "https://schemas.microsoft.com/xrm/2011/Metadata/Query")>]
[<KnownTypeAttribute(typeof(LabelQueryExpression))>]
[<KnownTypeAttribute(typeof(AttributeQueryExpression))>]
[<KnownTypeAttribute(typeof(RelationshipQueryExpression))>]
type MetadataQueryExpression = 
    class
        inherit MetadataQueryBase
    end

<KnownTypeAttribute(GetType(EntityQueryExpression))>
<DataContractAttribute(Name := "MetadataQueryExpression", Namespace := "https://schemas.microsoft.com/xrm/2011/Metadata/Query")>
<KnownTypeAttribute(GetType(LabelQueryExpression))>
<KnownTypeAttribute(GetType(AttributeQueryExpression))>
<KnownTypeAttribute(GetType(RelationshipQueryExpression))>
Public MustInherit Class MetadataQueryExpression
    Inherits MetadataQueryBase

Constructors

	Name	Description
	MetadataQueryExpression()	Initializes a new instance of the MetadataQueryExpression class.

Properties

	Name	Description
	Criteria	Gets or sets the filter criteria for the metadata query.
	ExtensionData	Gets or sets the structure that contains extra data.(Inherited from MetadataQueryBase.)
	Properties	Gets or sets the properties to be returned by the query.

Methods

	Name	Description
	Equals(Object)	(Inherited from Object.)
	Finalize()	(Inherited from Object.)
	GetHashCode()	(Inherited from Object.)
	GetType()	(Inherited from Object.)
	MemberwiseClone()	(Inherited from Object.)
	ToString()	(Inherited from Object.)

Thread Safety

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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