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:     using System.Diagnostics.CodeAnalysis; 

  18:     using System.Globalization; 

  19:     using System.Web.Mvc.Resources; 

  20:  

  21:     [SuppressMessage("Microsoft.Usage", "CA2237:MarkISerializableTypesWithSerializable", 

  22:         Justification = "It is not anticipated that users will need to serialize this type.")] 

  23:     [SuppressMessage("Microsoft.Design", "CA1035:ICollectionImplementationsHaveStronglyTypedMembers", 

  24:         Justification = "It is not anticipated that users will call FormCollection.CopyTo().")] 

  25:     [FormCollectionBinder] 

  26:     public class FormCollection : NameValueCollection { 

  27:  

  28:         public FormCollection() { 

  29:         } 

  30:  

  31:         public FormCollection(NameValueCollection collection) { 

  32:             if (collection == null) { 

  33:                 throw new ArgumentNullException("collection"); 

  34:             } 

  35:  

  36:             Add(collection); 

  37:         } 

  38:  

  39:         public IDictionary<string, ValueProviderResult> ToValueProvider() { 

  40:             CultureInfo currentCulture = CultureInfo.CurrentCulture; 

  41:  

  42:             Dictionary<string, ValueProviderResult> dict = new Dictionary<string, ValueProviderResult>(StringComparer.OrdinalIgnoreCase); 

  43:             string[] keys = AllKeys; 

  44:             foreach (string key in keys) { 

  45:                 string[] rawValue = GetValues(key); 

  46:                 string attemptedValue = this[key]; 

  47:                 ValueProviderResult vpResult = new ValueProviderResult(rawValue, attemptedValue, currentCulture); 

  48:                 dict[key] = vpResult; 

  49:             } 

  50:  

  51:             return dict; 

  52:         } 

  53:  

  54:         public virtual ValueProviderResult GetValue(string name) { 

  55:             if (String.IsNullOrEmpty(name)) { 

  56:                 throw new ArgumentException(MvcResources.Common_NullOrEmpty, "name"); 

  57:             } 

  58:  

  59:             string[] rawValue = GetValues(name); 

  60:             if (rawValue == null) { 

  61:                 return null; 

  62:             } 

  63:  

  64:             string attemptedValue = this[name]; 

  65:             return new ValueProviderResult(rawValue, attemptedValue, CultureInfo.CurrentCulture); 

  66:         } 

  67:  

  68:         private sealed class FormCollectionBinderAttribute : CustomModelBinderAttribute { 

  69:  

  70:             // since the FormCollectionModelBinder.BindModel() method is thread-safe, we only need to keep 

  71:             // a single instance of the binder around 

  72:             private static readonly FormCollectionModelBinder _binder = new FormCollectionModelBinder(); 

  73:  

  74:             public override IModelBinder GetBinder() { 

  75:                 return _binder; 

  76:             } 

  77:  

  78:             // this class is used for generating a FormCollection object 

  79:             private sealed class FormCollectionModelBinder : IModelBinder { 

  80:                 public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) { 

  81:                     if (controllerContext == null) { 

  82:                         throw new ArgumentNullException("controllerContext"); 

  83:                     } 

  84:  

  85:                     return new FormCollection(controllerContext.HttpContext.Request.Form); 

  86:                 } 

  87:             } 

  88:         } 

  89:  

  90:     } 

  91: }