javascript - durandal.js 确认框无法返回是或否

Question

我想在 durandal.js 中添加确认框

我写了以下代码，但它没有返回是或否

define(['services/logger', 'durandal/plugins/router', 'durandal/app'], function (logger, router, app) {

if (app.showMessage('Are you sure you want to delete :' + titlename + '?', 'Delete Confirmation', ['Yes', 'No'])) {
                DeleteAchievement(self, obj.Soid)
            }

Answer 1

showMessage 方法返回一个承诺，因此您的代码应如下所示：

app.showMessage('Are you sure you want to delete :' + titlename + '?', 'Delete Confirmation', ['Yes', 'No']).then(function(dialogResult){
    if(dialogResult === "Yes"){
        //Your code
    }
});

您可以在此处获取更多信息：http: //durandaljs.com/documentation/Showing-Message-Boxes-And-Modals/

Answer 2

从这里所说的 app.showMessage() 返回一个承诺，这意味着您必须在承诺已解决时编写 if 语句，即（在这种情况下）当用户单击是或否并关闭对话框时。你的代码（对我有用）就像

app.showMessage('Are you sure you want to delete :' + titlename + '?', 'Delete Confirmation', ['Yes', 'No']).then(function (dialogResult) {
            if(dialogResult == 'Yes'){
                 //this is called if user clicked yes
            }else{
                 //this is called if user clicked no
            }
        });