AttributeHelper.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;

namespace WebApplication1
{

    public class AttributeHelper
    {
        public static string GetDisplayName(Type modelType, string propertyDisplayName)
        {
            return (TypeDescriptor.GetProperties(modelType)[propertyDisplayName].Attributes[typeof(DisplayNameAttribute)] as DisplayNameAttribute).DisplayName;
        }

        public static string GetDisplay(Type modelType, string propertyDisplayName)
        {
            return (TypeDescriptor.GetProperties(modelType)[propertyDisplayName].Attributes[typeof(DisplayAttribute)] as DisplayAttribute).Name;
        }

        /// <summary>
        /// 反射获取所有DisplayName标记值
        /// </summary>
        /// <typeparam name="T">实体类型</typeparam>
        /// <param name="model">需要获取的实体</param>
        /// <returns></returns>
        List<string> GetDisplayName<T>(T model)
        {
            //获取所有属性
            PropertyInfo[] properties = model.GetType().GetProperties();

            var list = new List<string>();
            foreach (var item in properties)
            {
                var attrs = item.GetCustomAttributes(typeof(DisplayNameAttribute), true);
                if (attrs != null)
                {
                    var displayName = ((DisplayNameAttribute)attrs[0]).DisplayName;
                    list.Add(displayName);
                }
            }
            return list;
        }

        /// <summary>
        /// 反射获取属性值
        /// </summary>
        /// <typeparam name="T">实体类型</typeparam>
        /// <param name="modelList">需要获取value的实体集合</param>
        /// <returns></returns>
        List<string> GetValue<T>(T modelList)
        {
            var list = new List<string>();
            var type = modelList.GetType();
            var properties = type.GetProperties();
            foreach (var item in properties)
            {