diff --git a/src/Tizen.NUI/src/public/BaseComponents/ControlState.cs b/src/Tizen.NUI/src/public/BaseComponents/ControlState.cs index 0cc46c0857d..b19f770dc8a 100755 --- a/src/Tizen.NUI/src/public/BaseComponents/ControlState.cs +++ b/src/Tizen.NUI/src/public/BaseComponents/ControlState.cs @@ -149,7 +149,13 @@ public bool Contains(ControlState state) /// [EditorBrowsable(EditorBrowsableState.Never)] - public bool Equals(ControlState other) => value.Equals(other.value); + public bool Equals(ControlState other) + { + if (other is null) + return false; + + return value.Equals(other.value); + } /// /// 9