close #180

src/Shared/HandyControl_Shared/Tools/Converter/Double2GridLengthConverter.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace HandyControl.Tools.Converter
+{
+    public class Double2GridLengthConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value is double doubleValue)
+            {
+                if (double.IsNaN(doubleValue) || double.IsInfinity(doubleValue))
+                {
+                    return new GridLength(1.0, GridUnitType.Star);
+                }
+                return new GridLength(doubleValue);
+            }
+
+            return new GridLength(0);
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}