QueryByAttribute Class

Artikkeli
11/28/2016

Applies To: Dynamics 365 (online), Dynamics 365 (on-premises), Dynamics CRM 2016, Dynamics CRM Online

Contains a query that is expressed as a set of attribute and value pairs.

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

Inheritance Hierarchy

System.Object
Microsoft.Xrm.Sdk.Query.QueryBase
Microsoft.Xrm.Sdk.Query.QueryByAttribute

Syntax

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

<DataContractAttribute(Name := "QueryByAttribute", Namespace := "https://schemas.microsoft.com/xrm/2011/Contracts")>
Public NotInheritable Class QueryByAttribute
    Inherits QueryBase

Constructors

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

Properties

	Name	Description
	Attributes	Gets the set of attributes selected in the query.
	ColumnSet	Gets or sets the column set.
	EntityName	Gets or sets the logical name of the entity to query.
	ExtensionData	Gets or sets the structure that contains extra data.(Inherited from QueryBase.)
	Orders	Gets the order in which the entity instances are returned from the query.
	PageInfo	Gets or sets the number of pages and the number of entity instances per page returned from the query.
	TopCount	Gets or sets the number of rows to be returned.
	Values	Gets the attribute values to look for when the query is executed.

Methods

	Name	Description
	AddAttributeValue(String, Object)	Adds an attribute value to the attributes collection.
	AddOrder(String, OrderType)	Adds an order to the orders collection.
	Equals(Object)	(Inherited from Object.)
	GetHashCode()	(Inherited from Object.)
	GetType()	(Inherited from Object.)
	ToString()	(Inherited from Object.)

Examples

//  Create query using QueryByAttribute.
QueryByAttribute querybyattribute = new QueryByAttribute("account") {
   ColumnSet = new ColumnSet("name", "address1_city", "emailaddress1"),
   Attributes.AddRange("address1_city"),
   Values.AddRange("Redmond")
};

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.

Jaa