ASP.NET: How to check the value of a cached dictionary?

Not really sure how to do this but i can cache the dictionary like this:

Cache.Insert("CacheName", Dictionary)

need some direction. the dictionary is two 开发者_开发百科string values taken from a database. The user will input a string and i need to compare it against the values in the cached dictionary.

In general you need to access the object from the cache, cast it, and the use the ContainsKey property. Here is an example:

First add the dictionary to the Cache:

IDictionary<string, string> testDict = new Dictionary<string, string>();
testDict.Add("Test", "test");
Cache.Insert("dict", testDict);

Then, when you need to do so, access the cached object and use it ContainsKey property to determine whether it contains the searched key or not.

 var dict = Cache["dict"] as IDictionary<string, string>;

 if (dict != null)
 {
     string testValue = "test";
     if(dict.ContainsKey(testValue))
     {
        /* some logic here */ 
     }     
 }

You can access the value the following way:

if (dict != null)
 {
     string testValue = "test";
     if(dict.ContainsKey(testValue))
     {
        /* some logic here */ 
        string value = dict[testValue];
     }     
 }

You can get the dictionary out of the cache by writing

var dict = (Dictionary<X, Y>) cache["CacheName"];