1 files changed, 30 insertions, 0 deletions
diff --git a/Gestor.Common/Gestor.Common.Converters/NullVisibilityInvertedConverter.cs b/Gestor.Common/Gestor.Common.Converters/NullVisibilityInvertedConverter.cs
new file mode 100644
index 0000000..5e26f34
--- /dev/null
+++ b/Gestor.Common/Gestor.Common.Converters/NullVisibilityInvertedConverter.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Markup;
+
+namespace Gestor.Common.Converters
+{
+	public class NullVisibilityInvertedConverter : MarkupExtension, IValueConverter
+	{
+		public NullVisibilityInvertedConverter()
+		{
+		}
+
+		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)
+		{
+			return null;
+		}
+
+		public override object ProvideValue(IServiceProvider serviceProvider)
+		{
+			return this;
+		}
+	}
+}
+\ No newline at end of file