QueryableExtensionMethodsCacheResultsetTSource Method (IQueryableTSource, TimeSpan, Boolean, String)

Specifies that the query's resultset should be cached for the duration specified. Only one tag is kept per complete query. Specify the tag you want to use on the outermost query expression.

Namespace: SD.LLBLGen.Pro.LinqSupportClasses
Assembly: SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.4.0.0 (5.4.0)

Syntax

Copy

public static IQueryable<TSource> CacheResultset<TSource>(
	this IQueryable<TSource> source,
	TimeSpan duration,
	bool overwriteIfPresent,
	string cacheTag
)

<ExtensionAttribute>
Public Shared Function CacheResultset(Of TSource) ( 
	source As IQueryable(Of TSource),
	duration As TimeSpan,
	overwriteIfPresent As Boolean,
	cacheTag As String
) As IQueryable(Of TSource)

Parameters

source: Type: System.LinqIQueryableTSource
The source.
duration: Type: SystemTimeSpan
The duration how long the resultset will stay in the cache.
overwriteIfPresent: Type: SystemBoolean
if set to true it will replace an existing cached set with the one specified.
cacheTag: Type: SystemString
The cache tag.

Type Parameters

TSource: The type of the query.

Return Value

Type: IQueryableTSource

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableTSource. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Exceptions

Exception	Condition
ArgumentNullException	source;source can't be null

Reference

QueryableExtensionMethods Class

CacheResultset Overload

SD.LLBLGen.Pro.LinqSupportClasses Namespace