DbAggregate Class

.NET Framework (current version)

Implements the basic functionality required by aggregates in a GroupBy clause.

Namespace: System.Data.Common.CommandTrees
Assembly: System.Data.Entity (in System.Data.Entity.dll)

Inheritance Hierarchy

System::Object
System.Data.Common.CommandTrees::DbAggregate
System.Data.Common.CommandTrees::DbFunctionAggregate
System.Data.Common.CommandTrees::DbGroupAggregate

Syntax

C++

public ref class DbAggregate abstract

Properties

	Name	Description
	Arguments	Gets the list of expressions that define the arguments to this DbAggregate.
	ResultType	Gets the result type of this DbAggregate.

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.)
	GetType()	Gets the Type of the current instance.(Inherited from 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.)

Extension Methods

	Name	Description
	As(String^)	Overloaded. Returns the specified arguments as a key/value pair object.(Defined by DbExpressionBuilder.)

Remarks

Aggregates are pseudo-expressions, and are severely restricted in where they can appear. Aggregates can only appear in the aggregates clause of a GroupBy expression.

Version Information

.NET Framework
Available since 3.5

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.