jQuery AJAX发布到asp.net webmethod永远不会被调用 [英] JQuery AJAX post to asp.net webmethod never getting called

问题描述

我的一个aspx页面中有一个Web方法:

I have a web method in one of my aspx pages:

[WebMethod]
public static string AddDebt(int userId, int type, string description, float amount)

在aspx页面中，我有了JQuery

And in the aspx page I have the JQuery

$(".addDebt").click(function (e) {
            e.preventDefault();
            var userId = $("[id$='txtUserId']").val();
            var type = $("[id$='ddlExistingDebtType']").val();
            var description = $("[id$='txtExistingDebtLender']").val();
            var amount = $("[id$='txtExistingDebtAmount']").val();

            var results = new Array();
            results.push({ userId: userId });
            results.push({ type: type });
            results.push({ description: description });
            results.push({ amount: amount });
            var dataString = JSON.stringify(results);
            $.ajax(
            {
                type: "POST",
                url: "register_borrower_step4.aspx/AddDebt",
                data: dataString,
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (result) {
                    $(".pDebtsTable").text(result);
                }
            });

        });

我知道我设置数据参数的方式看起来很愚蠢，但是以前它很干净，我将对其进行更改，但要点是，JSON对我来说似乎很好，不是吗?

I know that looks stupid the way I have set the data param but it was cleaner before and I will change it, but the point is, the JSON seems fine to me so it isn't that?

运行它时，没有发布到Web方法，尽管如果我更改contentType和dataType，我会得到整个aspx页面.我刚刚想到的一件事，比如说这个jquery实际上在register_borrower_step4.aspx页面上，这会引起问题吗?

When it is run there is not post to the web method, though if I change contentType and dataType I get the whole aspx page returned. One thing I just thought of, say this jquery is actually on the register_borrower_step4.aspx page, would that cause a problem?

推荐答案

该方法不需要数组.尝试这样:

The method doesn't expect an array. Try like this:

var dataString = JSON.stringify({ 
    userId: userId, 
    type: type, 
    description: description, 
    amount: amount 
});

$.ajax({
    type: "POST",
    url: "register_borrower_step4.aspx/AddDebt",
    data: dataString,
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: function (result) {
        $(".pDebtsTable").text(result);
    }
});

还要根据amount参数的区域性确保浮点分隔符正确.在.和,之间进行区分，否则Web方法可能不起作用.要进一步分析任何问题，您可以使用 FireBug 来了解幕后到底发生了什么.

Also make sure that floating point separator is correct according to the culture for the amount parameter. Make the distinction between . and , or the web method might not work. To further analyze any problems you could use FireBug to see exactly what is happening under the covers.

这篇关于jQuery AJAX发布到asp.net webmethod永远不会被调用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！