Question

使用免费的office365帐户，创建了默认的sharepoint在线网站。在它上面我创建了一个名为“Product”的列表。当我尝试获取所有网站列表时，未列出产品列表。只有2个列表（1）Composed look＆amp; （2）主页面图库正在列出。下面是我的App.js代码;

'use strict';

var context = SP.ClientContext.get_current();
var user = context.get_web().get_currentUser();
var web =  context.get_web();
var lists = context.get_web().get_lists();
var listItems;

(function () {

// This code runs when the DOM is ready and creates a context object which is 
// needed to use the SharePoint object model
$(document).ready(function () {
    getAllLists();
});

// This function prepares, loads, and then executes a SharePoint query to get 
// the current users information
function getAllLists() {
    context.load(lists);
    context.executeQueryAsync(onGetListsSuccess, onGetListsFail);

}

// This function is executed if the above call is successful
// It replaces the contents of the 'message' element with the user name
function onGetListsSuccess() {
    $('#message').text('Hello ' + lists.get_count().toString());
    //$('#message').text('Hello ' + web.get_title().toString());

 var listEnumerator = lists.getEnumerator();
 var selectListBox = document.getElementById("ListItemListBox");


 if (selectListBox.hasChildNodes()) {
     while (selectListBox.childNodes.length >= 1) {
         selectListBox.removeChild(selectListBox.firstChild);
     }
 }
// Traverse the elements of the collection, and load the name of
// each list into the dropdown list box.
 while (listEnumerator.moveNext()) {
     var selectOption = document.createElement("option");
     selectOption.value = listEnumerator.get_current().get_title();
     selectOption.innerText = listEnumerator.get_current().get_title();
     selectListBox.appendChild(selectOption);
 }

}

// This function is executed if the above call fails
function onGetListsFail(sender, args) {
    alert('Failed to get user name. Error:' + args.get_message());
}


})();

Answer 1

请先了解一下有关sharepoint app的一些概念：

App Web - 部署App的网站

您需要应用程序访问和使用SharePoint组件，例如列表，内容类型，工作流和页面。在本案例中，所有SharePoint组件都应部署在一个单独的SharePoint站点中，称为App Web。

主机网站 - 安装应用程序的网站

部署应用程序的实际站点称为主机Web。

从您的代码中，您通过clientcontext.get_current（）方法访问App Web，该方法返回用户正在运行的当前上下文。因此，您只会在列表框中看到两个列表。如果您想访问信息在Host Web中，需要一种不同的方法。您可以使用名为AppSiteContext的对象，下面的代码供您参考：

'use strict';
var web;
var hostcontext;
var lists;
$(document).ready(function () { 
    var hostUrl = decodeURIComponent(getQueryStringParameter("SPHostUrl"));
    var  currentcontext = new SP.ClientContext.get_current();
    hostcontext = new SP.AppContextSite(currentcontext, hostUrl);
    web = hostcontext.get_web();
    lists = web.get_lists();
    getAllLists();
});

function getAllLists() {
    context.load(lists);
    context.executeQueryAsync(onGetListsSuccess, onGetListsFail);
}

// This function is executed if the above call is successful
// It replaces the contents of the 'message' element with the user name
function onGetListsSuccess() {
    $('#message').text('Hello ' + lists.get_count().toString());
    var listEnumerator = lists.getEnumerator();
    // Traverse the elements of the collection, and load the name of
    // each list into the dropdown list box.
    while (listEnumerator.moveNext()) {
        alert(listEnumerator.get_current().get_title());
  }
}

//this is just the sample function that's in all the MS samples

function getQueryStringParameter(paramToRetrieve) {
    var params =
    document.URL.split("?")[1].split("&");
    var strParams = "";
    for (var i = 0; i < params.length; i = i + 1) {
        var singleParam = params[i].split("=");
        if (singleParam[0] == paramToRetrieve)
            return singleParam[1];
  }
}

// This function is executed if the above call fails
function onGetListsFail(sender, args) {
    alert('Failed to get user name. Error:' + args.get_message());
}

Napa SharePoint应用程序未找到创建的共享点列表

1 个答案: