Question

我正在尝试用ajax加载Fancytree。贝娄是我的代码，调用方法时我没有收到任何错误。此外，我已经验证数据返回到ajax方法。但是无法将子对象加载到树中。有人可以帮我确定确切的问题吗？

Ajax电话：

lazyLoad: function (event, data) {              

    data.result = $.ajax({
        type: "POST",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        url: "frmCSMWorkstation.aspx/GetList",
        error: function (xhr, status, error) {
            // Display a generic error for now.
            alert("AJAX Error!");
        }
    });
},

Webmethod

[WebMethod]
    public static string GetList()
    {
        try
        {
            using (var context = new DataEntities())
            {
                var objGroup = context.ObjectGroups.Select(s => new { title = s.Name.Replace("/", ""), key = s.ObjectGroupUid }).Take(5);

                var jsonSerialiser = new JavaScriptSerializer();
                var json = jsonSerialiser.Serialize(objGroup);
                return json;
            } 

        }
        catch (Exception)
        {
            throw;
        }
    }

从Webmethod返回的数据

[
    {"title":"Title1","key":"2c6ac17b-cbb5-e511-8213-00215a9c800e"},
    {"title":"Title2","key":"8db871b2-2db6-e511-8213-00215a9c800e"},
    {"title":"Title3","key":"e409320e-31b6-e511-8213-00215a9c800e"},
    {"title":"Title4","key":"bd7f22b2-31b6-e511-8213-00215a9c800e"}
]

Answer 1

您可能会使用source选项加载初始数据。仅在展开延迟节点时才会触发lazyLoad。像

这样的东西

source: {              
    url: "frmCSMWorkstation.aspx/GetList",
},

无法使用ajax

1 个答案: