在更新到版本1.10.1时，jQuery-UI可拖动错误'无法在init之前调用方法' [英] jQuery-UI draggable error 'cannot call methods prior to init', in updating to version 1.10.1

问题描述

我在使用jQuery-UI 1.8.2时正在使用draggable插件，然后我改为1.10.1。我发现的主要区别是在启用和禁用插件时，我不再需要使用：

I was working the draggable plugin fine while using jQuery-UI 1.8.2, then I changed to 1.10.1. The major difference I found was that in enabling and disabling the plugin, I no longer needed to use:

$this.draggable('option', 'disabled', true);

但可以简单地使用

$this.draggable('disable');

但后来我意识到还有另一个问题。我收到此错误，这会弄乱我的整个程序，我不知道如何修复它：

But then I realized there's another problem. I get this error, which messes up my entire program, and I don't know how to fix it:

错误：无法调用方法在初始化之前可拖动;
试图调用方法'enable'

Error: cannot call methods on draggable prior to initialization; attempted to call method 'enable'

为了解决这个问题，我确保我总是打电话给 $ this.draggable（'enable'）; 在任何进一步的选项之前，但它没有什么区别。有什么问题？

To fix it, I ensured that I always call $this.draggable('enable'); before any further options, but it didn't make a difference. What's the problem?

推荐答案

你的错误的含义是： $ this.draggable（'enable' ）; 在 $ this.draggable（）; 之前调用。

The meaning of your error is : $this.draggable('enable'); is called before $this.draggable();.

检查你的程序的执行流程：确保你在尝试用它做任何事情之前确实初始化了插件（例如：叫做 $ this.draggable（）; ）。

Check the execution flow of your progam : make sure that you have indeed initialized the plugin (e.g : called $this.draggable();) before trying to do anything with it.

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