Classe ColumnSet

Article
12/01/2014

S'applique à: CRM 2015 on-prem, CRM Online

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

Espace de noms: Microsoft.Xrm.Sdk.Query
Assembly: Microsoft.Xrm.Sdk (dans Microsoft.Xrm.Sdk.dll)

Syntaxe

'Déclaration
<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

Remarques

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.

Hiérarchie d'héritage

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

Cohérence de thread

Tous les membres statiques publics (Shared dans Visual Basic) de ce type sont thread-safe. Tous les membres d'instance ne sont pas garantis thread-safe.

Plateformes

Plateformes de développement

Windows Vista, Windows Server 2003 et

Plateformes cibles

Windows Vista,Windows XP

Voir aussi

Référence

Autres ressources

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

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