React to string[] -> StringValues changes.

Author: Tratcher

src/Microsoft.AspNet.Mvc.Core/CreatedAtActionResult.cs

@@ -7,6 +7,7 @@
 using Microsoft.AspNet.Mvc.Core;
 using Microsoft.Framework.DependencyInjection;
 using Microsoft.Framework.Internal;
+using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.Mvc
 {
@@ -73,7 +74,7 @@ protected override void OnFormatting([NotNull] ActionContext context)
                 throw new InvalidOperationException(Resources.NoRoutesMatched);
             }
 
-            context.HttpContext.Response.Headers.Set("Location", url);
+            context.HttpContext.Response.Headers[HeaderNames.Location] = url;
         }
     }
 }

src/Microsoft.AspNet.Mvc.Core/CreatedAtRouteResult.cs

@@ -7,6 +7,7 @@
 using Microsoft.AspNet.Mvc.Core;
 using Microsoft.Framework.DependencyInjection;
 using Microsoft.Framework.Internal;
+using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.Mvc
 {
@@ -70,7 +71,7 @@ protected override void OnFormatting([NotNull] ActionContext context)
                 throw new InvalidOperationException(Resources.NoRoutesMatched);
             }
 
-            context.HttpContext.Response.Headers.Set("Location", url);
+            context.HttpContext.Response.Headers[HeaderNames.Location] = url;
         }
     }
 }

src/Microsoft.AspNet.Mvc.Core/CreatedResult.cs

@@ -4,6 +4,7 @@
 using System;
 using Microsoft.AspNet.Http;
 using Microsoft.Framework.Internal;
+using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.Mvc
 {
@@ -50,7 +51,7 @@ public string Location
         /// <inheritdoc />
         protected override void OnFormatting([NotNull] ActionContext context)
         {
-            context.HttpContext.Response.Headers.Set("Location", Location);
+            context.HttpContext.Response.Headers[HeaderNames.Location] = Location;
         }
     }
 }

src/Microsoft.AspNet.Mvc.Core/FileResult.cs

@@ -68,7 +68,7 @@ public override Task ExecuteResultAsync([NotNull] ActionContext context)
                 // basis for the actual filename, where possible.
                 var cd = new ContentDispositionHeaderValue("attachment");
                 cd.SetHttpFileName(FileDownloadName);
-                context.HttpContext.Response.Headers.Set(HeaderNames.ContentDisposition, cd.ToString());
+                context.HttpContext.Response.Headers[HeaderNames.ContentDisposition] = cd.ToString();
             }
 
             // We aren't flowing the cancellation token appropriately, see

src/Microsoft.AspNet.Mvc.Core/HttpMethodConstraint.cs

@@ -5,6 +5,7 @@
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Linq;
+using Microsoft.AspNet.Primitives;
 using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Mvc
@@ -62,12 +63,12 @@ public bool Accept([NotNull] ActionConstraintContext context)
             if (request.Headers.ContainsKey(OriginHeader))
             {
                 // Update the http method if it is preflight request.
-                var accessControlRequestMethod = request.Headers.Get(AccessControlRequestMethod);
+                var accessControlRequestMethod = request.Headers[AccessControlRequestMethod];
                 if (string.Equals(
                         request.Method,
                         PreflightHttpMethod,
                         StringComparison.Ordinal) &&
-                    accessControlRequestMethod != null)
+                    !StringValues.IsNullOrEmpty(accessControlRequestMethod))
                 {
                     method = accessControlRequestMethod;
                 }

src/Microsoft.AspNet.Mvc.Core/ModelBinding/FormCollectionModelBinder.cs

@@ -7,6 +7,7 @@
 using System.Threading.Tasks;
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.Http.Internal;
+using Microsoft.AspNet.Primitives;
 using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Mvc.ModelBinding
@@ -42,7 +43,7 @@ public async Task<ModelBindingResult> BindModelAsync([NotNull] ModelBindingConte
             }
             else
             {
-                model = new FormCollection(new Dictionary<string, string[]>());
+                model = new FormCollection(new Dictionary<string, StringValues>());
             }
 
             var validationNode =

src/Microsoft.AspNet.Mvc.Core/ModelBinding/HeaderModelBinder.cs

@@ -7,6 +7,7 @@
 using System.Reflection;
 #endif
 using System.Threading.Tasks;
+using Microsoft.AspNet.Primitives;
 using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Mvc.ModelBinding
@@ -36,7 +37,7 @@ protected override Task<ModelBindingResult> BindModelCoreAsync([NotNull] ModelBi
             object model = null;
             if (bindingContext.ModelType == typeof(string))
             {
-                var value = request.Headers.Get(headerName);
+                string value = request.Headers[headerName];
                 if (value != null)
                 {
                     model = value;
@@ -45,7 +46,7 @@ protected override Task<ModelBindingResult> BindModelCoreAsync([NotNull] ModelBi
             else if (typeof(IEnumerable<string>).IsAssignableFrom(bindingContext.ModelType))
             {
                 var values = request.Headers.GetCommaSeparatedValues(headerName);
-                if (values != null)
+                if (values.Count > 0)
                 {
                     model = ModelBindingHelper.ConvertValuesToCollectionType(
                         bindingContext.ModelType,
@@ -61,7 +62,7 @@ protected override Task<ModelBindingResult> BindModelCoreAsync([NotNull] ModelBi
                     bindingContext.ModelMetadata,
                     model);
 
-                var attemptedValue = (model as string) ?? request.Headers.Get(headerName);
+                var attemptedValue = (model as string) ?? request.Headers[headerName];
                 var valueProviderResult = new ValueProviderResult(model, attemptedValue, CultureInfo.InvariantCulture);
                 bindingContext.ModelState.SetModelValue(bindingContext.ModelName, valueProviderResult);
             }

src/Microsoft.AspNet.Mvc.Core/ModelBinding/JQueryFormValueProvider.cs

@@ -6,6 +6,7 @@
 using System.Diagnostics;
 using System.Globalization;
 using System.Threading.Tasks;
+using Microsoft.AspNet.Primitives;
 using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Mvc.ModelBinding
@@ -16,10 +17,10 @@ namespace Microsoft.AspNet.Mvc.ModelBinding
     /// </summary>
     public class JQueryFormValueProvider : BindingSourceValueProvider, IEnumerableValueProvider
     {
-        private readonly Func<Task<IDictionary<string, string[]>>> _valuesFactory;
+        private readonly Func<Task<IDictionary<string, StringValues>>> _valuesFactory;
 
         private PrefixContainer _prefixContainer;
-        private IDictionary<string, string[]> _values;
+        private IDictionary<string, StringValues> _values;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="DictionaryBasedValueProvider"/> class.
@@ -29,7 +30,7 @@ public class JQueryFormValueProvider : BindingSourceValueProvider, IEnumerableVa
         /// <param name="culture">The culture to return with ValueProviderResult instances.</param>
         public JQueryFormValueProvider(
             [NotNull] BindingSource bindingSource,
-            [NotNull] Func<Task<IDictionary<string, string[]>>> valuesFactory,
+            [NotNull] Func<Task<IDictionary<string, StringValues>>> valuesFactory,
             CultureInfo culture)
             : base(bindingSource)
         {
@@ -40,7 +41,7 @@ public JQueryFormValueProvider(
         // Internal for testing.
         internal JQueryFormValueProvider(
             [NotNull] BindingSource bindingSource,
-            [NotNull] IDictionary<string, string[]> values,
+            [NotNull] IDictionary<string, StringValues> values,
             CultureInfo culture)
             : base(bindingSource)
         {
@@ -70,22 +71,26 @@ public override async Task<ValueProviderResult> GetValueAsync(string key)
         {
             var dictionary = await GetDictionary();
 
-            string[] values;
-            if (dictionary.TryGetValue(key, out values) && values != null && values.Length > 0)
+            StringValues values;
+            if (dictionary.TryGetValue(key, out values) && values.Count > 0)
             {
-                // Success.
-                if (values.Length == 1)
+                if (values.Count == 1)
                 {
-                    return new ValueProviderResult(values[0], values[0], Culture);
+                    var value = (string)values;
+                    return new ValueProviderResult(value, value, Culture);
+                }
+                else
+                {
+                    var rawValue = (string[])values;
+                    var value = (string)values;
+                    return new ValueProviderResult(rawValue, value, Culture);
                 }
-
-                return new ValueProviderResult(values, string.Join(",", values), Culture);
             }
 
             return null;
         }
 
-        private async Task<IDictionary<string, string[]>> GetDictionary()
+        private async Task<IDictionary<string, StringValues>> GetDictionary()
         {
             if (_values == null)
             {

src/Microsoft.AspNet.Mvc.Core/ModelBinding/JQueryFormValueProviderFactory.cs

@@ -8,6 +8,7 @@
 using System.Threading.Tasks;
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.Mvc.Core;
+using Microsoft.AspNet.Primitives;
 using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Mvc.ModelBinding
@@ -29,11 +30,11 @@ public IValueProvider GetValueProvider([NotNull] ValueProviderFactoryContext con
             return null;
         }
 
-        private static async Task<IDictionary<string, string[]>> GetValueCollectionAsync(HttpRequest request)
+        private static async Task<IDictionary<string, StringValues>> GetValueCollectionAsync(HttpRequest request)
         {
             var formCollection = await request.ReadFormAsync();
 
-            var dictionary = new Dictionary<string, string[]>(StringComparer.OrdinalIgnoreCase);
+            var dictionary = new Dictionary<string, StringValues>(StringComparer.OrdinalIgnoreCase);
             foreach (var entry in formCollection)
             {
                 var key = NormalizeJQueryToMvc(entry.Key);

src/Microsoft.AspNet.Mvc.Core/ModelBinding/ReadableStringCollectionValueProvider.cs

@@ -7,6 +7,7 @@
 using System.Globalization;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Primitives;
 using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Mvc.ModelBinding
@@ -80,21 +81,21 @@ public virtual async Task<IDictionary<string, string>> GetKeysFromPrefixAsync([N
         public override async Task<ValueProviderResult> GetValueAsync([NotNull] string key)
         {
             var collection = await GetValueCollectionAsync();
-            var values = collection.GetValues(key);
+            var values = collection[key];
 
             ValueProviderResult result;
-            if (values == null)
+            if (values.Count == 0)
             {
                 result = null;
             }
             else if (values.Count == 1)
             {
-                var value = (string)values[0];
+                var value = (string)values;
                 result = new ValueProviderResult(value, value, _culture);
             }
             else
             {
-                result = new ValueProviderResult(values, _values.Get(key), _culture);
+                result = new ValueProviderResult((string[])values, _values[key], _culture);
             }
 
             return result;