Question

我正在http://blog.symprogress.com/2010/11/ribbon-insert-any-web-part-using-javascript/使用来源来处理用户网页部件按钮点击事件。

函数'addWebPart（）'调用一个函数'SP.Ribbon.WebPartComponent.getWebPartAdder（）'，它应该返回adder实例，但有时会返回undefined。

如果我添加一个while循环来等待实例值正确返回，我的VM中的浏览器会暂停一段时间。返回实例时，浏览器会再次响应。这只会在某些情况下发生。

我正在使用SharePoint 2013，我所指的代码部分是：

addWebPart = function (wpCategory, wpTitle) {

            var webPartAdder = SP.Ribbon.WebPartComponent.getWebPartAdder();

            while (webPartAdder == undefined)
                webPartAdder = SP.Ribbon.WebPartComponent.getWebPartAdder();

            // ... Other stuff ...
}

如何解决此问题？

Answer 1

对于任何寻找这个问题答案的人来说，你必须打电话给'LoadWPAdderOnDemand（）＆＃39;函数然后等待事件＆＃39; _spEventWebPartAdderReady＆＃39;。然后查询＆＃39; window.WPAdder＆＃39;：

    addWebPartDelayed = function (webPartAdder, wpCategory, wpTitle) {

        var webPart = findWebPart(webPartAdder, wpCategory, wpTitle);
        if (webPart) {
            var zone = WPAdder._zones[0];
            var wpid = WPAdder._createWebpartPlaceholderInRte();
            WPAdder.addItemToPageByItemIdAndZoneId(webPart.id, zone.id, 0, wpid);
        }
        else
            alert('ERROR: Web part not found! Please try again after sometime.');
    },

    addWebPart = function (wpCategory, wpTitle) {

        var webPartAdder = window.WPAdder;

        if (webPartAdder == undefined) {
            LoadWPAdderOnDemand();
            ExecuteOrDelayUntilEventNotified(
                function () {
                    var webPartAdder = window.WPAdder;

                    addWebPartDelayed(webPartAdder, wpCategory, wpTitle);
                },
                "_spEventWebPartAdderReady");
        }
        else
            addWebPartDelayed(webPartAdder, wpCategory, wpTitle);            
    };

SP.Ribbon.WebPartComponent.getWebPartAdder（）返回undefined

1 个答案: