从Jquery发送数据到控制器。 MVC C＃

Question

my jquery script code part , the script is working fine and set data array/object in dataBLL..

var dataBLL = [];
$('#mytable tr').each(function (i) {

dataBLL.push({

id: $(this).find('td:eq(0)').text(),
ctype: $(this).find('td:eq(1)').text(),
cpath: $(this).find('td:eq(2)').text(),
ckey: $(this).find('td:eq(3)').text(),
ckey: $(this).find('td:eq(4) input:frist').val(),

});
  $.ajax ({
             url:"User/BllBtn",
             type:"POST",
             data:"dataBll="JSON.stringify(dataBLL);
             dataType: "json",
             success: function (e) {

                alert("sucess");
            }})

but i am not able to send this object/Array to my controller to use it's data and iterate through each row entry .

My controller signature

[HttpPost]
public ActionResutl BllBtn(List<string> dataBll)
{

}

Please guide how to get this object as list so I can loop into in simplest way.

Answer 1

You've got a syntax error (which your browser console will have told you), and also you're producing invalid JSON.

data: { "dataBll": dataBLL }

should work I think. Or

data: JSON.stringify({ "dataBll": dataBLL })

at worst. Also set

contentType: 'application/json; charset=UTF-8'

as another option in the ajax call.

The next problem is you are trying to accept List<string> into your method, but dataBll is a complex object with the following properties:

id, ctype, cpath, ckey, ckey

Firstly, you can't define ckey twice in the same object, and secondly your JSON object is incompatible with the type in the C# method. You need to define a class, eg

public class myNewType
{
  public string id {get; set; }
  public string ctype {get; set; }
  public string cpath {get; set; }
  public string ckey {get; set; }
}

and then accept List<myNewType> as the parameter to the method:

public ActionResult BllBtn(List<myNewType> dataBll)