diff --git a/src/Net_35/HandyControl_Net_35/Themes/Basic/Converters.xaml b/src/Net_35/HandyControl_Net_35/Themes/Basic/Converters.xaml
index 8a4d418f..1246361f 100644
--- a/src/Net_35/HandyControl_Net_35/Themes/Basic/Converters.xaml
+++ b/src/Net_35/HandyControl_Net_35/Themes/Basic/Converters.xaml
@@ -15,5 +15,6 @@
     <converter:Object2BooleanConverter x:Key="Object2BooleanConverter"/>
     <converter:Boolean2StrConverter x:Key="Boolean2StrConverter"/>
     <converter:Int2StrConverter x:Key="Int2StrConverter"/>
+    <converter:Null2VisibilityConverter x:Key="Null2VisibilityConverter"/>
 
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Net_35/HandyControl_Net_35/Tools/Converter/Null2VisibilityConverter.cs b/src/Net_35/HandyControl_Net_35/Tools/Converter/Null2VisibilityConverter.cs
new file mode 100644
index 00000000..d1edc482
--- /dev/null
+++ b/src/Net_35/HandyControl_Net_35/Tools/Converter/Null2VisibilityConverter.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace HandyControl.Tools.Converter
+{
+    public class Null2VisibilityConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return value == null ? Visibility.Collapsed : Visibility.Visible;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
index c14ba4cd..a382e54c 100644
--- a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
+++ b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
@@ -209,6 +209,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\Color2HexStrConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\Int2StrConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\Long2FileSizeConverter.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\Object2VisibilityConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\Object2BooleanConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\String2VisibilityConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\String2VisibilityReConverter.cs" />
diff --git a/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml b/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
index 2de6c240..68e208ca 100644
--- a/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
@@ -16,5 +16,6 @@
     <converter:Int2StrConverter x:Key="Int2StrConverter"/>
     <converter:BorderClipConverter x:Key="BorderClipConverter"/>
     <converter:BorderCircularConverter x:Key="BorderCircularConverter"/>
+    <converter:Object2VisibilityConverter x:Key="Object2VisibilityConverter"/>
 
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Tools/Converter/Object2VisibilityConverter.cs b/src/Shared/HandyControl_Shared/Tools/Converter/Object2VisibilityConverter.cs
new file mode 100644
index 00000000..ba99d2e8
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Tools/Converter/Object2VisibilityConverter.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace HandyControl.Tools.Converter
+{
+    public class Object2VisibilityConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return value == null ? Visibility.Collapsed : Visibility.Visible;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}