class/System.Web.Mvc/System.Web.Mvc/NameValueCollectionExtensions.cs

   1 /* ****************************************************************************
   2  *
   3  * Copyright (c) Microsoft Corporation. All rights reserved.
   4  *
   5  * This software is subject to the Microsoft Public License (Ms-PL).
   6  * A copy of the license can be found in the license.htm file included
   7  * in this distribution.
   8  *
   9  * You must not remove this notice, or any other, from this software.
  10  *
  11  * ***************************************************************************/
  12
  13 namespace System.Web.Mvc {
  14     using System;
  15     using System.Collections.Generic;
  16     using System.Collections.Specialized;
  17
  18     public static class NameValueCollectionExtensions {
  19
  20         public static void CopyTo(this NameValueCollection collection, IDictionary<string, object> destination) {
  21             CopyTo(collection, destination, false /* replaceEntries */);
  22         }
  23
  24         public static void CopyTo(this NameValueCollection collection, IDictionary<string, object> destination, bool replaceEntries) {
  25             if (collection == null) {
  26                 throw new ArgumentNullException("collection");
  27             }
  28             if (destination == null) {
  29                 throw new ArgumentNullException("destination");
  30             }
  31
  32             foreach (string key in collection.Keys) {
  33                 if (replaceEntries || !destination.ContainsKey(key)) {
  34                     destination[key] = collection[key];
  35                 }
  36             }
  37         }
  38     }
  39 }