diff --git a/web/documentserver-example/csharp/Default.aspx.cs b/web/documentserver-example/csharp/Default.aspx.cs
index b5aa4bf1..725b582c 100644
--- a/web/documentserver-example/csharp/Default.aspx.cs
+++ b/web/documentserver-example/csharp/Default.aspx.cs
@@ -383,22 +383,22 @@ namespace OnlineEditorsExample
             return storedFiles;
         }
 
-        public static List<Dictionary<string, string>> GetFilesInfo(string idFile = null)
+        public static List<Dictionary<string, object>> GetFilesInfo(string fileId = null)
         {
-            var files = new List<Dictionary<string, string>>();
+            var files = new List<Dictionary<string, object>>();
 
             foreach (var file in GetStoredFiles())
             {
-                var dictionary = new Dictionary<string, string>();
-                dictionary.Add("version", GetFileVersion(file.Name, null).ToString());
+                var dictionary = new Dictionary<string, object>();
+                dictionary.Add("version", GetFileVersion(file.Name, null));
                 dictionary.Add("id", ServiceConverter.GenerateRevisionId(_Default.CurUserHostAddress(null) + "/" + file.Name + "/" + File.GetLastWriteTime(_Default.StoragePath(file.Name, null)).GetHashCode()));
                 dictionary.Add("contentLength", Math.Round(file.Length / 1024.0, 2) + " KB");
-                dictionary.Add("pureContentLength", file.Length.ToString());
+                dictionary.Add("pureContentLength", file.Length);
                 dictionary.Add("title", file.Name);
                 dictionary.Add("updated", file.LastWriteTime.ToString());
-                if (idFile != null)
+                if (fileId != null)
                 {
-                    if (idFile.Equals(dictionary["id"]))
+                    if (fileId.Equals(dictionary["id"]))
                     {
                         files.Add(dictionary);
                         break;
diff --git a/web/documentserver-example/csharp/WebEditor.ashx.cs b/web/documentserver-example/csharp/WebEditor.ashx.cs
index f088da20..f2eb2561 100644
--- a/web/documentserver-example/csharp/WebEditor.ashx.cs
+++ b/web/documentserver-example/csharp/WebEditor.ashx.cs
@@ -240,23 +240,31 @@ namespace OnlineEditorsExample
 
         private static void Files(HttpContext context)
         {
-            List<Dictionary<string, string>> files = null;
+            List<Dictionary<string, object>> files = null;
 
             try
             {
-                var idFile = context.Request["id"];
-                if (idFile == null)
+                context.Response.ContentType = "application/json";
+                var jss = new JavaScriptSerializer();
+
+                if (context.Request["fileId"] == null)
                 {
                     files = _Default.GetFilesInfo();
+                    context.Response.Write(jss.Serialize(files));
                 }
                 else
                 {
-                    files = _Default.GetFilesInfo(idFile);
+                    var fileId = context.Request["fileId"];
+                    files = _Default.GetFilesInfo(fileId);
+                    if (files.Count == 0)
+                    {
+                        context.Response.Write("\"File not found\"");
+                    }
+                    else
+                    {
+                        context.Response.Write(jss.Serialize(files));
+                    }
                 }
-
-                context.Response.ContentType = "application/json";
-                var jss = new JavaScriptSerializer();
-                context.Response.Write(jss.Serialize(files));
             }
             catch (Exception e)
             {