add else and pragma

CampusAppWP8/CampusAppWP8/File/Exams/ExamFile.cs

@@ -45,6 +45,7 @@ namespace CampusAppWP8.File.Exams
 
         /// <summary>Executes the file operation.</summary>
         /// <remarks>Stubbfel, 03.09.2013.</remarks>
+        #pragma warning disable 4014
         public async void LaunchFile()
         {
             if (this.storageFile == null)

CampusAppWP8/CampusAppWP8/Utility/Utilities.cs

@@ -125,9 +125,10 @@ namespace CampusAppWP8.Utility
                 {
                     retValue.Add(child);
                 }
-
-                var ret = retValue.Concat<DependencyObject>(GetChild(child as DependencyObject, elemName));
-                retValue = ret.ToList<DependencyObject>();
+                else
+                {
+                    retValue.AddRange(GetChild(child as DependencyObject, elemName));
+                }
             }
 
             return retValue;