Try Playground
Show / Hide Table of Contents

Method Contains

Contains(String)

Determines whether the cache contains a specific key.

Declaration
bool Contains(string key)
Parameters
Type Name Description
System.String key

The key to locate in the cache.

Returns
Type Description
System.Boolean

True, if the ICache contains an element with the specified key; otherwise, false.

Remarks

In most of the cases this method's implementation is close to O(1).

Note: In a partitioned cluster this operation is an expensive one as it might result in network calls. It is therefore advised to use this property only when required.

Examples

The following example demonstrates how to check for containment of an item in the cache.

ICache cache = CacheManager.GetCache("demoClusteredCache");

if(cache.Contains("Product0"))
{
    Console.WriteLine("Item found!");
}
Exceptions
Type Condition
System.ArgumentNullException

Key contains a null reference.

System.ArgumentException

Key is not serializable.

Contact Us

PHONE

+1 (214) 764-6933   (US)

+44 20 7993 8327   (UK)

 
EMAIL

sales@alachisoft.com

support@alachisoft.com

NCache
  • NCache Enterprise
  • NCache Professional
  • Edition Comparison
  • NCache Architecture
  • Benchmarks
Download
Pricing
Try Playground

Deployments
  • Cloud (SaaS & Software)
  • On-Premises
  • Kubernetes
  • Docker
Technical Use Cases
  • ASP.NET Sessions
  • ASP.NET Core Sessions
  • Pub/Sub Messaging
  • Real-Time ASP.NET SignalR
  • Internet of Things (IoT)
  • NoSQL Database
  • Stream Processing
  • Microservices
Resources
  • Magazine Articles
  • Third-Party Articles
  • Articles
  • Videos
  • Whitepapers
  • Shows
  • Talks
  • Blogs
  • Docs
Customer Case Studies
  • Testimonials
  • Customers
Support
  • Schedule a Demo
  • Forum (Google Groups)
  • Tips
Company
  • Leadership
  • Partners
  • News
  • Events
  • Careers
Contact Us

  • EnglishChinese (Simplified)FrenchGermanItalianJapaneseKoreanPortugueseSpanish

  • Contact Us
  •  
  • Sitemap
  •  
  • Terms of Use
  •  
  • Privacy Policy
© Copyright Alachisoft 2002 - . All rights reserved. NCache is a registered trademark of Diyatech Corp.
Back to top