QueryExpression Class

.NET Framework (current version)

Other Versions

Retrieves instances of a specific entity type by using a complex query.

Namespace: System.Web.UI.WebControls.Expressions
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)

Inheritance Hierarchy

System::Object
System.Web.UI.WebControls.Expressions::QueryExpression

Syntax

C++

public ref class QueryExpression

Constructors

	Name	Description
	QueryExpression()	Initializes new instance of the QueryExpression class.

Properties

	Name	Description
	Expressions	Gets the collection of expressions in the query.

Methods

	Name	Description
	Equals(Object^)	Determines whether the specified object is equal to the current object.(Inherited from Object.)
	Finalize()	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)
	GetHashCode()	Serves as the default hash function. (Inherited from Object.)
	GetQueryable(IQueryable^)	Resolves the expression by using the specified IQueryable data source control.
	GetType()	Gets the Type of the current instance.(Inherited from Object.)
	Initialize(Control^, HttpContext^, IQueryableDataSource^)	Initializes the QueryExpression object by using the specified owner control, a HttpContext instance, and IQueryableDataSource object.
	MemberwiseClone()	Creates a shallow copy of the current Object.(Inherited from Object.)
	ToString()	Returns a string that represents the current object.(Inherited from Object.)

Data source controls that derive from IQueryableDataSource expose the data source query that enables you to create LINQ queries declaratively. You can create new expressions by deriving from DataSourceExpression.

Version Information

.NET Framework
Available since 4.0

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.