Converting/accessing QueryString values in ASP.NET

Question

I\'m curious what everyone does for handling/abstracting the QueryString in ASP.NET. In some of our web apps I see a lot of this all over the site:

int val = 0;         


        

Answer 1

We've been using constants to keep all of these "loose" keys in a central location:

public class Constants
{
  public class QueryString
  {
    public const string PostID = "pid";
    public const string PostKey = "key";
  }
  public class Cookie
  {
    public const string UserID = "mydomain.com-userid";
  }
  public class Cache
  {
    public const string PagedPostList = "PagedPostList-{0}-{1}";
  }
  public class Context
  {
    public const string PostID = "PostID";
  }
  public class Security
  {
    public const RoleAdministrator = "Administrator";
  }
}

That way, you easily access the constants you need with:

public void Index()
{
  if (Request[Constants.QueryString.PostKey] == "eduncan911")
  {
    // do something
  }
}

public object GetPostsFromCache(int postID, int userID)
{
  String cacheKey = String.Format(
      Constants.Cache.PagedPostList
      , userID
      , postID);
  return Cache[cacheKey] as IList<Post>;
}