发布JSON对象到WebService和处理它有 [英] Posting a JSON object to a WebService and Processing it there

问题描述

我创建了以下JSON对象

I am creating the following JSON object

 $("#btnSubmit").click(function () {
     var poll = { 'q': $('#txtQuestion').val(), 'a': [] };

     for (i = 1; i < counter; i++) {
         var a = $('#txtAnswer_' + i).val();
         poll.a.push(a);
     }


                  $.ajax({
                        type: 'POST',
                        url: "../_ws/Polls.asmx",
                        data: JSON.stringify(poll),
                        contentType: 'application/json; charset=utf-8',
                        dataType: 'json'

                  });



 });

基本上，这retreives一个投票的问题，文本框的值与答案文本框（动态创建的）。结果是一个轮询对象

basically, this retreives a question textbox's value and answers textboxes (created on the fly) of a poll. The result is a 'poll' object.

我想从以上可以看出这个对象发送到Web服务。没有问题，直到在这里。我的问题是我怎么retreive在一个函数这个JSON对象和处理它在我的web服务？

I want to send this object to a webservice as seen above. No problems up until here. My question is how do I retreive this json object and process it in a function in my web service?

<WebMethod()> _
<ScriptMethod()>
Public Function AddPoll(**??? as ???**) As String

End Function

我将不胜感激，如果有人可以提供帮助。

I would be grateful if anyone could help.

推荐答案

如果我理解正确的话，调查最终会变成这样？

If I understand correctly, poll will end up looking like this?

{ q: 'Question text', a: [ 'Answer 1', 'Answer 2', 'Answer 3' ] }

如果是这样，你可以用一个简单的方法声明会是这样的：

If so, a simple method declaration you could use would be something like:

Public Function AddPoll(q as String, a as List<string>)

如果你想要更多的东西precise，你可以建立自己的一套匹配类型的：

If you wanted something more precise, you could build up your own set of matching type:

public class PollDTO {
  public string q { get; set; }
  public List<string> a { get; set; }
}

<WebMethod()>
Public Function AddPoll(pollData as PollDTO)

您就需要您的jQuery的数据参数也更改为组单变量也在数据：

You'd need to also change your jQuery data parameter to group that data under the single variable also:

data: JSON.stringify({ pollData: poll })

更多关于这里：的http：// encosia.com/using-complex-types-to-make-calling-services-less-complex/

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