diff --git a/Sinvo.EplanHpD.Plugin.WPFUI/Converter/ConnectionTypeConverter.cs b/Sinvo.EplanHpD.Plugin.WPFUI/Converter/ConnectionTypeConverter.cs
index 33a209e..f99244a 100644
--- a/Sinvo.EplanHpD.Plugin.WPFUI/Converter/ConnectionTypeConverter.cs
+++ b/Sinvo.EplanHpD.Plugin.WPFUI/Converter/ConnectionTypeConverter.cs
@@ -1,4 +1,5 @@
-using EPLAN.Harness.Core.Platform;
+
+using Sinvo.EplanHpD.Plugin.WPFUI.Enum;
 using Sinvo.EplanHpD.Plugin.WPFUI.Utils;
 using System;
 using System.Collections.Generic;
@@ -14,11 +15,12 @@ namespace Sinvo.EplanHpD.Plugin.WPFUI.Converter
     {
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
+            //if (!System.Enum.IsDefined(typeof(ConnectionType), (ConnectionType)value))
+            //{
+            //    return false;
+            //}
             var flag = (ConnectionType)value;
-            if (!System.Enum.IsDefined(typeof(ConnectionType), flag))
-            {
-                return false;
-            }
+           
             return flag == (ConnectionType)parameter;
         }
 
diff --git a/Sinvo.EplanHpD.Plugin.WPFUI/Converter/FlagEnumConverter.cs b/Sinvo.EplanHpD.Plugin.WPFUI/Converter/FlagEnumConverter.cs
index bca7cb7..ca465c4 100644
--- a/Sinvo.EplanHpD.Plugin.WPFUI/Converter/FlagEnumConverter.cs
+++ b/Sinvo.EplanHpD.Plugin.WPFUI/Converter/FlagEnumConverter.cs
@@ -11,10 +11,10 @@ namespace Sinvo.EplanHpD.Plugin.WPFUI.Converter
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
             var flag = (WireFlagType)value;
-            if (!System.Enum.IsDefined(typeof(WireFlagType), flag))
-            {
-                return false;
-            }
+            //if (!System.Enum.IsDefined(typeof(WireFlagType), flag))
+            //{
+            //    return false;
+            //}
             return flag == (WireFlagType)parameter;
         }
 
diff --git a/Sinvo.EplanHpD.Plugin.WPFUI/Converter/NameTypeConverter.cs b/Sinvo.EplanHpD.Plugin.WPFUI/Converter/NameTypeConverter.cs
index d02a94f..e0329dd 100644
--- a/Sinvo.EplanHpD.Plugin.WPFUI/Converter/NameTypeConverter.cs
+++ b/Sinvo.EplanHpD.Plugin.WPFUI/Converter/NameTypeConverter.cs
@@ -11,10 +11,10 @@ namespace Sinvo.EplanHpD.Plugin.WPFUI.Converter
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
             var flag = (ExportFileNameType)value;
-            if (!System.Enum.IsDefined(typeof(ExportFileNameType), flag))
-            {
-                return false;
-            }
+            //if (!System.Enum.IsDefined(typeof(ExportFileNameType), flag))
+            //{
+            //    return false;
+            //}
             return flag == (ExportFileNameType)parameter;
         }