QueryExpression Class

Reference

Definition

Namespace:: Microsoft.Xrm.Sdk.Query

Assembly:: Microsoft.Xrm.Sdk.dll

Package:: Microsoft.PowerPlatform.Dataverse.Client v1.0.26

Important

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Contains a complex query expressed in a hierarchy of expressions.

public ref class QueryExpression sealed : Microsoft::Xrm::Sdk::Query::QueryBase

[System.Runtime.Serialization.DataContract(Name="QueryExpression", Namespace="http://schemas.microsoft.com/xrm/2011/Contracts")]
public sealed class QueryExpression : Microsoft.Xrm.Sdk.Query.QueryBase

[<System.Runtime.Serialization.DataContract(Name="QueryExpression", Namespace="http://schemas.microsoft.com/xrm/2011/Contracts")>]
type QueryExpression = class
    inherit QueryBase

Public NotInheritable Class QueryExpression
Inherits QueryBase

Inheritance: Object

QueryBase
QueryExpression

Attributes: DataContractAttribute

Examples

Query#RetrieveMultipleConditionOperatorsQE1

Remarks

QueryExpression provides an object model to construct a query. Queries can also be created using FetchXML, a proprietary XML based query language. You can convert queries between FetchXML and QueryExpression using FetchXmlToQueryExpressionRequest and QueryExpressionToFetchXmlRequest messages. More information: Sample: Convert queries between Fetch and QueryExpression.

Constructors

QueryExpression()	Initializes a new instance of the QueryExpression class.
QueryExpression(String)	Initializes a new instance of the QueryExpression class setting the entity name.

Fields

Empty

Properties

ColumnSet	Gets or sets the columns to include.
Criteria	Gets or sets the complex condition and logical filter expressions that filter the results of the query.
DataSource
Distinct	Gets or sets whether the results of the query contain duplicate entity instances.
EntityName	Gets or sets the logical name of the entity.
ExtensionData	Gets or sets the structure that contains extra data. (Inherited from QueryBase)
LinkEntities	Gets a collection of the links between multiple entity types.
NoLock	Gets or sets a value that indicates that no shared locks are issued against the data that would prohibit other transactions from modifying the data in the records returned from the query.
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.
QueryHints	Gets or sets a hint for generated SQL text which affects the query's execution.
SubQueryExpression
TopCount	Gets or sets the number of rows to be returned.

Methods

Accept(IQueryExpressionVisitor)
AddLink(String, String, String)	Adds the specified link to the query expression setting the entity name to link to, the attribute name to link from and the attribute name to link to.
AddLink(String, String, String, JoinOperator)	Adds the specified link to the query expression setting the entity name to link to, the attribute name to link from and the attribute name to link to.
AddOrder(String, OrderType)	Adds the specified order expression to the query expression.
AddOrder(String, OrderType, String, String)

Applies to