feat: 完善 PortProxy 图形化管理工具

PortProxyTool.Wpf/Rules/PortValidationRule.cs

@@ -0,0 +1,14 @@
+using System.Globalization;
+using System.Windows.Controls;
+
+namespace PortProxyTool.Wpf.Rules;
+
+public class PortValidationRule : ValidationRule
+{
+    public override ValidationResult Validate(object? value, CultureInfo cultureInfo)
+    {
+        if (value is not string strValue) return new ValidationResult(false, "请输入有效的数字");
+        if (string.IsNullOrEmpty(strValue) || ushort.TryParse(strValue, out _)) return ValidationResult.ValidResult;
+        return new ValidationResult(false, "请输入有效的数字");
+    }
+}