使用Typescript的javascript函數中的角度範圍

Question

我使用Typescript與Angular和Breezejs。

class CounterController { 
    count: number = 0; 
    static $inject = ['$scope']; 


    constructor($scope) { 
     $scope.vm = this; 
    } 

    setCount14(): void { 
     this.count = 14; // works 
    } 

    getQuestions(): void { 
     var manager = new breeze.EntityManager('/breeze/dbentities'); 
     var query = breeze.EntityQuery.from("Corporations").where("Name", "startsWith", "Zen"); 
     manager.executeQuery(query) 
      .then(querySucceeded); 

     function querySucceeded(data) { 
      this.count= 1; // works not! 
     } 
    } 
} 

我如何可以訪問querySucceeded功能正確的count財產？

編輯：更好：必須有辦法將打印稿功能傳遞到executeQuery(query).then？

解決方案：Pass Typescript function as a Javascript function

然後調用scope.$apply()不適用的綁定。

Answer 1

改爲使用(data) => { this.count = 1; }。或者你的「this」將沒有正確的範圍。或作爲替代方案：

var me = this; 
function querySucceeded(data) { 
    me.count= 1; // works not! 
} 

e.g：

getQuestions(): void { 
    var manager = new breeze.EntityManager('/breeze/dbentities'); 
    var query = breeze.EntityQuery.from("Corporations").where("Name", "startsWith", "Zen"); 
    manager.executeQuery(query) 
     .then((data) => { this.count= 1; }); 
}