Updating Data to Cache

Once data is added to the cache, you can update its contents against the existing key using the Insert method. However, it must be ensured that the object is serialized just as with the Add operation.

Updating Objects in Cache

In this example, a new object is added with an existing key.

  Product product = new Product();
  product.ProductID = 1001;
  product.ProductName = "Chai";
  product.UnitsInStock = 5; // updated units
  string key = "Product:" + product.ProductID;
  try{
       //precondition: Cache is already initialized and item exists
       cache.Insert(key, product);
  }
  catch (OperationFailedException ex){
       // handle exception
  }

Updating Objects Using CacheItem

In this example, a key is updated that has already been existing in cache with object set as a property of CacheItem.

Product product = new Product();
product.ProductID = 1001;
product.ProductName = "Chai";
product.UnitsInStock = 5; // updated units
CacheItem cacheItem = new CacheItem(product);
string key = "Product:" + product.ProductID;
try{
     cache.Insert(key, cacheItem);
}
catch (OperationFailedException ex){
     // handle exception
}