1 files changed, 15 insertions, 0 deletions
diff --git a/src/System.Web.Mvc/AjaxRequestExtensions.cs b/src/System.Web.Mvc/AjaxRequestExtensions.cs
new file mode 100644
index 00000000..e890fdcc
--- /dev/null
+++ b/src/System.Web.Mvc/AjaxRequestExtensions.cs
@@ -0,0 +1,15 @@
+namespace System.Web.Mvc
+{
+    public static class AjaxRequestExtensions
+    {
+        public static bool IsAjaxRequest(this HttpRequestBase request)
+        {
+            if (request == null)
+            {
+                throw new ArgumentNullException("request");
+            }
+
+            return (request["X-Requested-With"] == "XMLHttpRequest") || ((request.Headers != null) && (request.Headers["X-Requested-With"] == "XMLHttpRequest"));
+        }
+    }
+}