1 files changed, 34 insertions, 0 deletions
diff --git a/src/System.Web.Mvc/ByteArrayModelBinder.cs b/src/System.Web.Mvc/ByteArrayModelBinder.cs
new file mode 100644
index 00000000..df14ddb0
--- /dev/null
+++ b/src/System.Web.Mvc/ByteArrayModelBinder.cs
@@ -0,0 +1,34 @@
+namespace System.Web.Mvc
+{
+    public class ByteArrayModelBinder : IModelBinder
+    {
+        public virtual object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
+        {
+            if (bindingContext == null)
+            {
+                throw new ArgumentNullException("bindingContext");
+            }
+
+            ValueProviderResult valueResult = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
+
+            // case 1: there was no <input ... /> element containing this data
+            if (valueResult == null)
+            {
+                return null;
+            }
+
+            string value = valueResult.AttemptedValue;
+
+            // case 2: there was an <input ... /> element but it was left blank
+            if (String.IsNullOrEmpty(value))
+            {
+                return null;
+            }
+
+            // Future proofing. If the byte array is actually an instance of System.Data.Linq.Binary
+            // then we need to remove these quotes put in place by the ToString() method.
+            string realValue = value.Replace("\"", String.Empty);
+            return Convert.FromBase64String(realValue);
+        }
+    }
+}