解析出AJAX的JSON结果 [英] parsing out ajax json results

问题描述

我试图分析出一些数据，这就是从Web服务通过JSON具有以下code返回。

I'm trying to parse out some data thats returned from a web service via json with the following code.

        function getADData() {
        var strSearch = $('#txtSearch').val()
        var ajaxData = "{ 'PartNameString': '" + strSearch + "' }";
        $.ajax({
            type: "POST",
            url: "/Services/ActiveDirectoryInterop.asmx/SearchUsers",        
            data: ajaxData,
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success:populateTable
        });
    }

    function populateTable(result) {
        alert(result["d"].length);
    }

数据返回的是这样的。

Data Returned is this.

{"d":{"Columns":["UserID","Name","Email"],"Rows":[["U99999","Lees, Smith","[e-mail]"],["U99999","Lees, Mark","[e-mail]"],["99999","Lees, Bob","[e-mail]"],["U999999","Lees, John","[e-mail]"],["U999999","Lees, Jim","[e-mail]"]]}}

什么是警告，虽然仅仅指刚返回undefined。所以我知道我失去了一些东西，它可能有做的JSON的嵌套。有人可以显示点我在正确的direciton某些材料或code我怎么可能遍历数据，如我所recieving。

What the alert though jsut returns undefined. So i know I'm missing something and it probably has to do with the nesting of the JSON. Can someone point me in the right direciton for some materials or code that shows me how to possibly traverse data like what i'm recieving.

推荐答案

试试这个来代替：

alert(result.d.Columns.length);

和上怪人D<读了/ A>。

And read up on that weirdo 'd'.

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