改进 RatioConverter 支持double输入

Project.FLY.Thick.Base/FLY.Thick.Base.UI/Converter/RatioConverter.cs

@@ -9,35 +9,42 @@ namespace FLY.Thick.Base.UI.Converter
     public class RatioConverter: IMultiValueConverter
     {
         #region IMultiValueConverter 成员
-
-        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        double getValue(object value) 
         {
-            if (values.Length == 3 && (values[0] is int) && (values[1] is int) && (values[2] is double))//必须要检查，不然 界面生成器 会错误，提示转换异常
+            if ((value is int) && (!Misc.MyBase.ISVALIDATA((int)value)))
+                return 0;
+            
+            try
             {
-                double ratio ;
-                int value = (int)values[0];
-                if (value == 99999998)
-                    value = 0;
-                int max = (int)values[1];
-                double ActualWidth = (double)values[2];
-
-
-                if(max <=0)
-                    ratio = 0;
-                else
-                    ratio = (double)value / max;
-
-                if (ratio < 0)
-                    ratio = 0;
-                else if (ratio > 1)
-                    ratio = 1;
-
-                return ActualWidth * ratio;
+                return System.Convert.ToDouble(value);
             }
-            else 
+            catch
+            {
+                return 0;
+            }
+        }
+        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (values.Length != 3) //必须要检查，不然 界面生成器 会错误，提示转换异常
             {
                 return 100;
             }
+
+            double ratio;
+            double value = getValue(values[0]);
+            double max = getValue(values[1]);
+            double ActualWidth = getValue(values[2]);
+
+            if (max <=0)
+                ratio = 0;
+            else
+                ratio = (double)value / max;
+
+            if (ratio < 0)
+                ratio = 0;
+            else if (ratio > 1)
+                ratio = 1;
+            return ActualWidth * ratio;
         }
 
         public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)