添加项目文件。

Sai.Toolkit.Mvvm/ValidationRules/RangeVaildationRule.cs

@@ -0,0 +1,17 @@
+using System.Globalization;
+using System.Windows.Controls;
+
+namespace Sai.Toolkit.Mvvm.ValidationRules;
+
+public class RangeValidationRule : ValidationRule
+{
+    public object Min { get; set; }
+    public object Max { get; set; }
+
+    public override ValidationResult Validate(object value, CultureInfo cultureInfo)
+    {
+        return double.TryParse(value.ToString(), out var d) && d >= Convert.ToDouble(Min) && d <= Convert.ToDouble(Max)
+            ? ValidationResult.ValidResult
+            : new ValidationResult(false, "输入值的范围有误");
+    }
+}