public List Regions { get; set; }

在名为News.An Region Model的模型中

public class Region

{

public int Id { get; set; }

public string Name { get; set; }

public static Region Parse(DataRow row)

{

return new Region

{

Id = Database.GetInteger(row["Id"]),

Name = Database.GetString(row["Region"]),

};

}

}

在Javascript中我使用带有formdata的AJAX post方法.我想设置这个区域.

var regionList = [];

if (selected === "region") {

if (region.length <= 0) {

toastr.warning('Lütfen en az bir bölge seçin !!!');

return;

}

for (var i = 0; i < region.length; i++) {

var item = {

Id: region[i]

}

regionList.push(item);

}

console.log(regionList);

formData.append("Regions", regionList);

}

JS上面的代码我写这样来设置它

public ActionResult AddByRegion(News item)

{

int refPortal = SessionRepository.GetPortalId();

if(refPortal!=1)

return View("List", NewsRepository.ListAll(SessionRepository.GetPortalId()));

if (item == null

|| string.IsNullOrEmpty(item.Title)

|| string.IsNullOrEmpty(item.Content)

)

return Content(Serialization.JsonSerialize(new { Status = 400 }));

return Content(Serialization.JsonSerialize(new { Status = 200, Result = NewsRepository.AddByRegion(item) }));

}

上面的代码我将进入控制器.但它至少返回0记录,但至少我选择了两个区域.

$.ajax({

type: 'POST',

url: '@Url.Action("AddByRegion", "News")',

data: formData,

contentType: false,

processData: false,

success: function(data) {

var result = JSON.parse(data);

if (result.Result === "SUCCEED") {

toastr.success('@Resources.Resource.Success_MediaAdd');

window.location.reload();

return;

}

else {

toastr.error('@Resources.Resource.Error_Unexpected');

return;

}

},

error: function(error) {

toastr.error('@Resources.Resource.Error_Unexpected');

return;

},

beforeSend: function() {

waitingDialog.show('Wait...');

},

complete: function() {

waitingDialog.hide();

}

});

我的Ajax方法在上面.我哪里弄错了？

提前致谢.

解决方法:

如果您使用FormData发送数据,则需要.append()将每个单独的名称/值赋予FormData.由于它是一个集合,因此必须包含集合索引器(例如,必须为零和连续)

formData.append("Regions[0].Id", someValue);

formData.append("Regions[0].Name", someValue);

formData.append("Regions[1].Id", someValue);

formData.append("Regions[1].Name", someValue);

由于你在循环中这样做,你可以使用

for (var i = 0; i < region.length; i++) {

formData.append("Regions[" + i + "].Id", region[i])

}

标签：javascript,jquery,ajax,asp-net-mvc,form-data

来源： https://codeday.me/bug/20190927/1824119.html