使用AJAX将JavaScript数组发布到asp.net MVC控制器

Question

我的控制器:

[HttpPost]
public ActionResult AddUsers(int projectId, int[] useraccountIds)
{
    ...
}

我想通过AJAX将参数发布到控制器.传递int projectId不是问题,但我无法设法发布int[].

我的JavaScript代码:

function sendForm(projectId, target) {
    $.ajax({
        traditional: true,
        url: target,
        type: "POST",
        data: { projectId: projectId, useraccountIds: new Array(1, 2, 3) },
        success: ajaxOnSuccess,
        error: function (jqXHR, exception) {
            alert('Error message.');
        }
    });
}

我尝试使用测试阵列,但没有成功.:(我也尝试过设置traditional: true,contentType: 'application/json; charset=utf-8'但也没有成功......

该int[] useraccountIds贴到我的控制器总是空.

Answer 1

您可以定义视图模型:

public class AddUserViewModel
{
    public int ProjectId { get; set; }
    public int[] userAccountIds { get; set; }
}

然后调整您的控制器操作以将此视图模型作为参数:

[HttpPost]
public ActionResult AddUsers(AddUserViewModel model)
{
    ...
}

最后调用它:

function sendForm(projectId, target) {
    $.ajax({
        url: target,
        type: 'POST',
        contentType: 'application/json',
        data: JSON.stringify({ 
            projectId: projectId, 
            userAccountIds: [1, 2, 3] 
        }),
        success: ajaxOnSuccess,
        error: function (jqXHR, exception) {
            alert('Error message.');
        }
    });
}

Answer 2

在JS中:

var myArray = new Array();
myArray.push(2);
myArray.push(3);
$.ajax({
            type: "POST",
            url: '/MyController/MyAction',
            data: { 'myArray': myArray.join() },
            success: refreshPage
        });

在MVC/C#中:

public PartialViewResult MyAction(string myArray)
{
   var myArrayInt = myArray.Split(',').Select(x=>Int32.Parse(x)).ToArray();
   //My Action Code Here
}