Asp.net MVC3,C#,找出单个或多个的Json放慢参数? [英] Asp.net MVC3, C#, Figure out Single or Multiple Json paramter?
问题描述
我传递给单个JSON类型参数和多JSON的类型参数Asp.Net。
I'm passing to single JSON type parameter and multiple JSON type parameters to Asp.Net.
和在Asp.Net,我需要弄清楚的参数是单个数据或多个数据更新DB(EF,Repository模式)。
and in Asp.Net, I need to figure out the parameter is single data or multiple data to update DB (EF, Repository pattern).
[单张]
[多]
首先,我想这样的,
[HttpPost]
public ActionResult ItemUpdate(WEBORDERLN ln ,IList<WEBORDERLN> lns)
{
但它总是涉及到LN。它从来没有去LNS:(
[HttpPost]
public ActionResult ItemUpdate(WEBORDERLN ln)
{
// it works for only single update
和
[HttpPost]
public ActionResult ItemUpdate(IList<WEBORDERLN> lns)
{
// it works for only multiple update
我怎么弄明白,JSON的类型参数是单个或多个?
How I figure out, the JSON type parameter is single or multiple?
有人知道,请咨询我。
感谢您!
[HttpPost]
public ActionResult ItemUpdate(WEBORDERLNS lns)
{
try
{
EFWebOrderLnRepository webOrderLn = new EFWebOrderLnRepository();
log.Debug("Count : "+lns.lns.Count.ToString()); // Object reference not set to an instance of an object.
log.Debug(lns.lns.Count()); //null, error : Value cannot be null
log.Debug(lns.lns.Count().ToString()); //null, error : Value cannot be null
foreach (WEBORDERLN ln in lns.lns)
{
webOrderLn.updateWebOrderLn(ln); // Error : Object reference not set to an instance of an object
}
.
.
.
public class WEBORDERLNS
{
public IList<WEBORDERLN> lns { get; set; }
}
Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip, deflate
Accept-Language en-us,en;q=0.5
Connection keep-alive
Content-Length 875
Content-Type application/json; charset=UTF-8
Cookie user=38C6C07684B04645821CA5273EAB5B34340CE8CCA13A7D67DC748819B02C6963E4AD2A322068FC3090D3FE03EC81E663A5DED6FF2534E2595B40CF57EFF9BB544FFAC95CD79020E8A94019A3DC53B769EFC4049B6B9627E98AD9DBC1431BB5D99A47625B3353FA697A1CC005855C0248E95F61F7BD4A5362D75E5D01B395FB14E078524B8D0C7219AF959F9AED188AB30A16187DE166D5BD008B0013A65D470C52C9408C47FD42672B8FBABDB3524F77
Host localhost:49995
Referer http://localhost:49995/
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1
X-Requested-With XMLHttpRequest
推荐答案
您实际上会好得多创建模型类,再presents命令集,具备WEBORDERLN暴露为属性的集合。
You would actually be far better off creating a Model class which represents an order set, with a collection of WEBORDERLN exposed as a property.
public class OrderSet
{
public List<WEBORDERLN> OrderLines { get; set; }
}
在你的控制器的方法,传入的参数更改为: -
On your controller method, change the incoming parameter to:-
[HttpPost]
public ActionResult ItemUpdate(OrderSet orders)
{
// it works for only multiple update
在这一点上,接受模型时,你可以只需拨打 OrderLines
属性计数机制。
// How many orders?
var orderCount = orders.OrderLines.Count;
这篇关于Asp.net MVC3,C#,找出单个或多个的Json放慢参数?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!