ColumnSet Klasse

Artikel
07/17/2015

Specifies the attributes for which non-null values are returned from a query.

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

Syntax

'Declaration
<DataContractAttribute(Name:="ColumnSet", Namespace:="https://schemas.microsoft.com/xrm/2011/Contracts")> _
Public NotInheritable Class ColumnSet
    Implements IExtensibleDataObject

[DataContractAttribute(Name="ColumnSet", Namespace="https://schemas.microsoft.com/xrm/2011/Contracts")] 
public sealed class ColumnSet : IExtensibleDataObject

Anmerkungen

The ColumnSet class is used with methods and messages that retrieve one or more records from the database. The query returns non-null values for the attributes that are contained in the Columns property. The attributes not included in the ColumnSet will contain null values. If the column set includes attributes that are not valid for retrieve, they will be ignored and no values will be returned for those attributes.

The primary key is always returned and contains a non-null value.

Attributes are specified by name. For more information, see SchemaName.

Vererbungshierarchie

System.Object
Microsoft.Xrm.Sdk.Query.ColumnSet

Thread-Sicherheit

Alle öffentlichen statischen Mitglieder (Shared in Visual Basic) dieses Typs sind thread-sicher. Bei Instanzmitgliedern kann keine Garantie für die Thread-Sicherheit übernommen werden.

Plattformen

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 Server 2008,Windows Server 2012,Windows 7

Siehe auch

Referenz

Weitere Ressourcen

Using the ColumnSet Class
Using the QueryByAttribute Class
Using the QueryExpression Class

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