AJAX 将多个数据发送到 ASP.Net MVC

我在通过 ajax jquery 将多个对象发布到 MVC 4 控制器时遇到问题。已经过去几周了，但我似乎找不到解决方案。 我尝试了几种方法，有时filterModel对象为空，有时字符串参数为空（即使我对是否指定contentType进行字符串化也没关系）

我想要的是？ 我想传递三个对象：1.filterModel 2.testparamA 3.testparamB 我应该怎么做才能将所有三个对象传递给 MVC 控制器？我需要在 data: 中写入什么才能获得所有 3 个对象值？

最简单的控制器

[HttpPost]
public JsonResult Test(string testparamA, string testparamB, FilterModel filter)
{
    using (RBSystemEntities repository = new RBSystemEntities())
    {
        return Json(new {
            DataList = repository.Items.Select(x => new {x.PKID, x.ItemName}).ToList(),
            Result = "OK"
        });
    }
}

最简单的视图

var filterModel = @Html.Raw(Json.Encode(new FilterModel("ItemName", "Pepperoni Pizza")))
//filterModel = JSON.stringify(filterModel);

function testme() {
    // post the javascript variable back to the controller 
    $.ajax({
        url: '/Menu/Test',
        type: 'POST',
        //contentType: 'application/json; charset=utf-8',
        data: {
            filter: filterModel,
            testparamA: 'A value',
            testparamB: 'B value'
        }, // with this approach I get filterModel null in the controller however testparamA and testparamB has values
        data: filterModel, // with this approach I get values for filterModel but I can't pass testparamA and testparamB
        success: function (result) {
            // TODO: do something with the results
            alert('success');
        }
    });
}
testme();

最简单的FilterModel类

public class FilterModel
{
    public FilterModel() { }
    public FilterModel(string filtercolumn, string filtervalue)
    {
        this.FilterColumn = filtercolumn;
        this.FilterValue = filtervalue;
        this.FilterColumnCriteria = "=";
    }
    public string FilterColumn { get; set; }
    public string FilterValue { get; set; }
    public string FilterColumnCriteria { get; set; }
}

希望你不介意我发表我的评论（这很有帮助）作为答案......

如果您按如下方式使用 stringify ，它应该可以工作......

JSON.stringify({ fm: filterModel, ta: testparamA, tb: testparamA })