首次提交：添加src文件夹代码

Cowain.Bake.BLL/Converter/InvalidConvertor.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+using Cowain.Bake.Common.Enums;
+
+namespace Cowain.Bake.BLL.Converter
+{
+    public class InvalidConvertor:IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value == null)
+            {
+                return null;
+            }
+            value = System.Convert.ToInt32(value);
+            EValidStatus status = (EValidStatus)value;
+            return status.FetchDescription();
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return null;
+        }
+    }
+}