diff --git a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
index c14ba4cd..5ac2d019 100644
--- a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
+++ b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
@@ -209,6 +209,7 @@
+
diff --git a/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml b/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
index 2de6c240..d883342d 100644
--- a/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
@@ -16,5 +16,6 @@
+
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Tools/Converter/Null2VisibilityConverter.cs b/src/Shared/HandyControl_Shared/Tools/Converter/Null2VisibilityConverter.cs
new file mode 100644
index 00000000..d1edc482
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/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();
+ }
+ }
+}