月更

AntDesignWPF/Converters/MathConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+using System.Windows.Markup;
+
+namespace AntDesign.WPF.Converters
+{
+    public sealed class MathConverter : MarkupExtension, IValueConverter
+    {
+        public MathOperation Operation { get; set; }
+
+        public object? Convert(object? value, Type? targetType, object? parameter, CultureInfo? culture)
+        {
+            try
+            {
+                double value1 = System.Convert.ToDouble(value, CultureInfo.InvariantCulture);
+                double value2 = System.Convert.ToDouble(parameter, CultureInfo.InvariantCulture);
+                switch (Operation)
+                {
+                    case MathOperation.Add:
+                        return value1 + value2;
+                    case MathOperation.Divide:
+                        return value1 / value2;
+                    case MathOperation.Multiply:
+                        return value1 * value2;
+                    case MathOperation.Subtract:
+                        return value1 - value2;
+                    case MathOperation.Pow:
+                        return Math.Pow(value1, value2);
+                    default:
+                        return Binding.DoNothing;
+                }
+            }
+            catch (FormatException)
+            {
+                return Binding.DoNothing;
+            }
+        }
+
+        public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+            => Binding.DoNothing;
+
+        public override object ProvideValue(IServiceProvider serviceProvider)
+        {
+            return this;
+        }
+
+       
+    }
+}