你好 老板 我是这样写的 和他的类似 但是 我永远获取property属性为null

public class ColumnNameAttribute : Attribute
{
public string Name { get; set; }

    public ColumnNameAttribute(string name)
    {
        this.Name = name;
    }
}

class Model
{
[ColumnName("ID_065")]
public string id { get; set; }

    [ColumnName("Name_0954")]
    public string name { get; set; }
}



  static void Main(string[] args)
    {
        
        DataTable dt = new DataTable();
        dt.Columns.Add("ID_065");
        dt.Columns.Add("Name_0954");

      
        dt.Rows.Add("ID_", "2");
        dt.Rows.Add("Name_0", "3");

      
        List<Model> models = MapToList<Model>(dt);

        Console.ReadLine();
    }


    public static List<T> MapToList<T>(DataTable dataTable) where T : new()
    {
        List<T> entities = new List<T>();

        foreach (DataRow row in dataTable.Rows)
        {
            T entity = new T();

            foreach (DataColumn column in dataTable.Columns)
            {
                PropertyInfo property = entity.GetType().GetProperty(column.ColumnName);
                if (property != null && property.CanWrite)
                {
                    ColumnNameAttribute attribute = property.GetCustomAttribute<ColumnNameAttribute>();
                    if (attribute != null && attribute.Name == column.ColumnName)
                    {
                        property.SetValue(entity, row[column], null);
                    }
                }
            }

            entities.Add(entity);
        }

        return entities;
    }}

PropertyInfo property = entity.GetType().GetProperty(column.ColumnName);

永远为null

@22222220: 应该使用 .GetCustomAttribute<ColumnNameAttribute>()

@dudu: 这样获取的model数据也是null 我想映射进去 老板

下面是完整demo 您方便运行下吗

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
internal class Program
{
static void Main(string[] args)
{

        DataTable dt = new DataTable();
        dt.Columns.Add("ID_065");
        dt.Columns.Add("Name_0954");

      
        dt.Rows.Add("ID_", "2");
        dt.Rows.Add("Name_0", "3");

      
        List<Model> models = MapToList<Model>(dt);

        Console.ReadLine();
    }


    public static List<T> MapToList<T>(DataTable dataTable) where T : new()
    {
        List<T> entities = new List<T>();

        foreach (DataRow row in dataTable.Rows)
        {
            T entity = new T();

            foreach (DataColumn column in dataTable.Columns)
            {
                PropertyInfo property = entity.GetType().GetProperty(column.ColumnName);
                if (property != null && property.CanWrite)
                {
                    ColumnNameAttribute attribute = entity.GetType().GetCustomAttribute<ColumnNameAttribute>();
                    if (attribute != null && attribute.Name == column.ColumnName)
                    {
                        property.SetValue(entity, row[column], null);
                    }
                }
              
            }

            entities.Add(entity);
        }

        return entities;
    }}
    class Model
{
    [ColumnName("ID_065")]
    public string id { get; set; }

    [ColumnName("Name_0954")]
    public string name { get; set; }
}


public class ColumnNameAttribute : Attribute
{
    public string Name { get; set; }

    public ColumnNameAttribute(string name)
    {
        this.Name = name;
    }
}

}

已自行解决 谢谢老板