javascript 将ajax中的复杂对象发送到MVC

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时间:2020-10-28 12:44:29  来源:igfitidea点击:

Sending complex object in ajax to MVC

javascriptc#ajaxasp.net-mvc

提问by Saroj

The value of List<Order>returns as nullin my controller action method while sending the complex object. Can someone help to identify the issue? Do we need to pass array of objects with indexes?

发送复杂对象时List<Order>返回的值与null我的控制器操作方法中的一样。有人可以帮助确定问题吗?我们是否需要传递带有索引的对象数组?

JavaScript

JavaScript

function OnCustomerClick() {
    //var orders = [];
    //orders.push({ 'OrderId': '1', 'OrderBy': 'Saroj' });

    var complexObject = {
        FirstName: 'Saroj',
        LastName: 'K',
        //Orders : orders
        Orders: [{ OrderId: 1, OrderBy: 'Saroj' }, { OrderId: 2, OrderBy: 'Kumar' }]
    };

    var obj = { customer: complexObject };
    var data2send = JSON.stringify(obj);

    $.ajax({
        type: "POST",
        url: 'Home/TestCustomer1',
        data: data2send,
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (arg) { //call successfull
        },
        error: function (xhr) {
            //error occurred
        }
    });
};

MVC

MVC

 public ActionResult TestCustomer1(Customer customer)
    {
        return Json(customer);
    }

C#

C#

public class Customer
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    List<order> Orders { get; set; }
}

public class order
{
    public int OrderId { get; set; }
    public string  OrderBy { get; set; }
}

回答by Andrew Whitaker

You need to use publicproperties for model binding. Orderscurrently has no access modifier, so its private.

您需要使用公共属性进行模型绑定。Orders当前没有访问修饰符,所以它是私有的。

public class Customer
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public List<order> Orders { get; set; } // <----
}

Other than that, everything looks fine.

除此之外,一切看起来都很好。