添加项目文件。

Szmedi.RvKits/Attributes/ErrorCharsAttribute.cs

@@ -0,0 +1,27 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Szmedi.RvKits.Attributes
+{
+    public class ErrorCharsAttribute : ValidationAttribute
+    {
+        private readonly char[] chars;
+
+        public ErrorCharsAttribute(params char[] chars)
+        {
+            this.chars = chars;
+        }
+
+        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
+        {
+            object instance = validationContext.ObjectInstance;
+            foreach (var c in chars)
+            {
+                if (value.ToString().IndexOf(c) > 0)
+                {
+                    return new($"名称不能包含字符:{c}");
+                }
+            }
+            return ValidationResult.Success;
+        }
+    }
+}

Szmedi.RvKits/Attributes/GreaterThanAttribute.cs

@@ -0,0 +1,24 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace Szmedi.RvKits.Attributes
+{
+    public class GreaterThanAttribute : ValidationAttribute
+    {
+        public GreaterThanAttribute(string propertyName)
+        {
+            PropertyName = propertyName;
+        }
+
+        public string PropertyName { get; }
+
+        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
+        {
+            object
+                instance = validationContext.ObjectInstance,
+                otherValue = instance.GetType().GetProperty(PropertyName).GetValue(instance);
+
+            return ((IComparable)value).CompareTo(otherValue) > 0 ? ValidationResult.Success : new("当前值小于另一个值");
+        }
+    }
+}

Szmedi.RvKits/Attributes/IsNumericAttribute.cs

@@ -0,0 +1,15 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+
+namespace Szmedi.RvKits.Attributes
+{
+    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter)]
+    public sealed class IsNumericAttribute : ValidationAttribute
+    {
+        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
+        {
+            return double.TryParse(value.ToString(), out double _) ? ValidationResult.Success : new("输入内容不是数值。");
+        }
+    }
+}

Szmedi.RvKits/Attributes/MinimumAttribute.cs

@@ -0,0 +1,24 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+
+namespace Szmedi.RvKits.Attributes
+{
+    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter)]
+    public class MinimumAttribute : ValidationAttribute
+    {
+        public MinimumAttribute(double minValue = 0)
+        {
+            MinValue = minValue;
+        }
+
+        public double MinValue { get; }
+
+        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
+        {
+            return double.TryParse(value.ToString(), out double d) && d >= MinValue
+                ? ValidationResult.Success
+                : new ValidationResult("输入值超出范围");
+        }
+    }
+}

Szmedi.RvKits/Attributes/ShortcutRepAttribute.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Linq;
+
+namespace Szmedi.RvKits.Attributes
+{
+    [AttributeUsage(AttributeTargets.Class)]
+    class ShortcutRepAttribute : Attribute
+    {
+        public ShortcutRepAttribute(string shortcut)
+        {
+            Shortcut = shortcut;
+        }
+
+        public string Shortcut { get; }
+    }
+}