asp.net mvc int[] 和 string[] 自定义数组绑定

新建类，int[]数组模型绑定

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
 
namespace Koukou.Admin.ModelBinder
{
    public class IntArrayModelBinder : DefaultModelBinder
    {
        public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            var value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
            if (value == null || string.IsNullOrEmpty(value.AttemptedValue))
            {
                return null;
            }
 
            return value
                .AttemptedValue
                .Split(',')
                .Select(int.Parse)
                .ToArray();
        }
    }
}

string[] 数组模型绑定

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
 
namespace Koukou.Admin.ModelBinder
{
    public class StringArrayModelBinder : DefaultModelBinder
    {
        public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            var value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
            if (value == null || string.IsNullOrEmpty(value.AttemptedValue))
            {
                return null;
            }
 
            return value
                .AttemptedValue
                .Split(new string[] { ",", Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
            // 逗号“，” 和 换行符 作为分隔
        }
    }
}

在global.asax的Application_Start注册

protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
 
            RegisterGlobalFilters(GlobalFilters.Filters);
            RegisterRoutes(RouteTable.Routes);
 
//自定义model绑定
            ModelBinders.Binders.Add(typeof(int[]), new ModelBinder.IntArrayModelBinder());
            ModelBinders.Binders.Add(typeof(string[]), new ModelBinder.StringArrayModelBinder());
        }