[NUI] Fix build warning CA1062 (#2234)

[platform/core/csapi/tizenfx.git] / src / Tizen.NUI / src / internal / Camera.cs

diff --git a/src/Tizen.NUI/src/internal/Camera.cs b/src/Tizen.NUI/src/internal/Camera.cs
index ef68537..8b7b9bb 100755 (executable)
--- a/src/Tizen.NUI/src/internal/Camera.cs
+++ b/src/Tizen.NUI/src/internal/Camera.cs
@@ -69,6 +69,10 @@ namespace Tizen.NUI
 
         public static Camera DownCast(BaseHandle handle)
         {
+            if (handle == null)
+            {
+                throw new global::System.ArgumentNullException(nameof(handle));
+            }
             Camera ret = Registry.GetManagedBaseHandleFromNativePtr(handle) as Camera;
             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
             return ret;