forms - extjs文件上传进度

Question

我在 ExtJS4 中看到了表单文件上传示例，我需要自定义文件上传的进度。

我看到 waitMsg 配置属性，但我不想使用它，也不想使用 extjs 第 3 方插件。

那么，我如何才能从 extjs 中的上传表单中简单地获取当前上传进度？

Answer 1

waitMsg 使用带有无限自动更新进度条的消息框。所以你不能只创建一个显示当前上传的进度条。

您可以创建自己的 Ext.ProgressBar并估计上传时间，完成后将其设置为最大值。但我猜你不想要那个。

回答您的问题:您不能简单地跟踪当前的上传进度。

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如果您真的需要这种用户体验，可以尝试 3rd party component .

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引用文档:

File uploads are not performed using normal "Ajax" techniques, that is they are not performed using XMLHttpRequests. Instead the form is submitted in the standard manner with the DOM element temporarily modified to have its target set to refer to a dynamically generated, hidden which is inserted into the document but removed after the return data has been gathered.