code to clear image caching

ASP.NET comes with very powerful caching mechanism that can be used to easily improve responsiveness and efficiency of your web applications.

Here is the code snippet that clears all cached data in your web application:

public void ClearApplicationCache()
{
    List<string> keys = new List<string>();
    // retrieve application Cache enumerator
    IDictionaryEnumerator enumerator = Cache.GetEnumerator();
    // copy all keys that currently exist in Cache
    while (enumerator.MoveNext())
    {
        keys.Add(enumerator.Key.ToString());
    }

    // delete every key from cache
    for (int i = 0; i < keys.Count; i++)
    {
        Cache.Remove(keys[i]);
    }
}