How to cast a typed value to generic type T?

Question

I'm trying to use Azure Redis Cache in .NET Core application. I have written a CacheHelper generic method which implements generic interface like below.

However this issue is more related to Generics.

I'm getting error while casting cache value to generic type. Is this the correct way to do? or Am i missing something? Please see the code below.

public class CacheHelper<T> : ICacheHelper<T>
{
    private ICacheProvider _cacheProvider;

    public CacheHelper(ICacheProvider cacheProvider)
    {
        _cacheProvider = cacheProvider;
    }

    public async Task<CacheResponse<T>> GetCacheValueAsync(string key)
    {
        RedisValue value = await _cacheProvider.GetCacheDatabase().StringGetAsync(key);
        if (typeof(T).Equals(typeof(string)))
        {
            return value.HasValue
            ? new CacheResponse<T>(value) //I'm getting error here cannot cast type RedisValue to type T
            : CacheResponse<T>.NoValue();
        }
        else
        {
            T obj = JsonConvert.DeserializeObject<T>(value);
            return value.HasValue
           ? new CacheResponse<T>(obj)
           : CacheResponse<T>.NoValue();
        }
    }
}

Answer 1

You could use the built-in Convert class to your advantage here:

new CacheResponse<T>((T)Convert.ChangeType(value, typeof(T));