添加项目文件。

OrpaonEMS.Core/Converts/RatioConverter.cs

@@ -0,0 +1,31 @@
+using OrpaonEMS.Model.Enums;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace OrpaonEMS.Core.Converts
+{
+    public class RatioConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value == null)
+                return null;
+
+            return ((double)value) / 100.0;
+
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value == null)
+                return null;
+
+            return ((double)value) * 100.0;
+        }
+    }
+}