MetadataQueryExpression Class

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Applies To: Microsoft Dynamics CRM 2013, Microsoft Dynamics CRM Online

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)

Syntax

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

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

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

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.

Platforms

Development Platforms

Windows Server 2008, Windows Server 2012, Windows 7 (All Versions), Windows 8 (All Versions)

Target Platforms

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 Server 2008, ,Windows Server 2012, ,Windows 7 (All Versions), ,Windows 8 (All Versions)

See Also

Reference

MetadataQueryExpression Members
Microsoft.Xrm.Sdk.Metadata.Query Namespace

Other Resources

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

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