Using Asynchronous Operations

To utilize the APIs, include the following namespace in your application: Alachisoft.NCache.Web.Caching.

Adding Data to Cache Asynchronously

Data can be added to NCache asynchronously using AddAsync method.

Product product = new Product();
product.ProductID = 1001;
product.ProductName = "Chai";

CacheItem cacheItem = new CacheItem(product);

string key = "Product:" + product.ProductID;
try{
    cache.AddAsync(key, cacheItem, DSWriteOption.None, null);
}
catch (Exception ex)  {
    // handle exception
}

Updating Data to Cache Asynchronously

The InsertAsync method enables you to update previously added data to the cache in an asynchronous manner.

Product product = new Product();
product.ProductID = 1001;
product.ProductName = "Chai";
product.Category = 5; // updated category

CacheItem cacheItem = new CacheItem(product);
string key = "Product:" + product.ProductID;
try{
    cache.InsertAsync(key, cacheItem, DSWriteOption.None, null);
}
catch (Exception ex){
    // handle exception
}

Removing Data from Cache Asynchronously

The RemoveAsync operation allows you to perform a remove operation in the background. In the following example you need to specify the key that has to be removed.

string key = "Product:1001";
try{
    cache.RemoveAsync(key, null, DSWriteOption.None, null);
}
catch (Exception ex){
    //handle exception
}

Clearing Cache Asynchronously

The ClearAsync method clears the cache completely in the background.

try{
  cache.ClearAsync(null);
}
catch (Exception ex){
  // handle exception
}