SharePoint 2016:错误:get_count()不是函数 [英] SharePoint 2016: Error: get_count() is not a function

问题描述

我正在尝试将我的SharePoint 2013发布网站代码转换为SharePoint 2016.

I am trying to convert my SharePoint 2013 publishing site code to SharePoint 2016.

我有以下代码，当前在SharePoint 2016中不起作用:

I have the below code, which is currently not working in SharePoint 2016:

var selecteddownImg = "";
var selCategory = "abc";

function InvokeOne() {
    var clientcontext = new SP.ClientContext.get_current();

    var oweb = clientcontext.get_site().get_rootWeb();

    var olibrary = oweb.get_lists().getByTitle(myLibrary);

   
        var query = new SP.CamlQuery();
        query.set_viewXml('<View><Query><Where><Eq><FieldRef Name=\'BCategory\'/>' +
          '<Value Type=\'Choice\'>' + selCategory + '</Value></Eq></Where></Query></View>');

        selecteddownImg = olibrary.getItems(query);

        clientcontext.load(selecteddownImg);

        clientcontext.executeQueryAsync(Function.createDelegate(this, this.onRequestSucceeded), Function.createDelegate(this, this.onRequestFailed));

}



function onRequestSucceeded() {

    var templatescount = this.selecteddownImg.get_count();
    
}

我收到以下错误消息:

Uncaught TypeError: this.selecteddownImg.get_count is not a function at onRequestSucceeded 

该如何解决?

谢谢

推荐答案

你好

尝试在不带"this"的情况下访问selecteddownImg变量.并使用null而不是string ::

try to access selecteddownImg variable without "this.". And initialize it with null, not with string::

var selecteddownImg = null;
...
function onRequestSucceeded() {
    var templatescount = selecteddownImg.get_count();
}

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