Add IPostData.HasExcludedElements

Author: amaitland

CefSharp.Core/Internals/CefPostDataWrapper.h

@@ -153,6 +153,16 @@ namespace CefSharp
                 return gcnew CefPostDataElementWrapper(element);
             }
 
+            virtual property bool HasExcludedElements
+            {
+                bool get()
+                {
+                    ThrowIfDisposed();
+
+                    return _postData->HasExcludedElements();
+                }
+            }
+
             void ThrowIfReadOnly()
             {
                 if (IsReadOnly)

CefSharp/IPostData.cs

@@ -48,5 +48,13 @@ public interface IPostData : IDisposable
         /// </summary>
         /// <returns></returns>
         IPostDataElement CreatePostDataElement();
+
+        /// <summary>
+        /// Returns true if the underlying POST data includes elements that are not
+        /// represented by this IPostData object (for example, multi-part file upload
+        /// data). Modifying IPostData objects with excluded elements may result in
+        /// the request failing.
+        /// </summary>
+        bool HasExcludedElements { get; }
     }
 }