如何屏蔽要上传的文件类型 [英] How to mask a file type for uploading

问题描述

你好，

我正在使用FileUpload控件上传文件.我的要求是，当我单击浏览"按钮时，我应该只能看到.pdf文件.如何屏蔽要显示的文件类型.

预先感谢.

Hello,

I am using FileUpload control to upload files. My requirement is when I click the Browse button, I should be able to see files of .pdf only. How can I mask for the File Type to be shown.

Thanks in advance.

推荐答案

否.无法将直接过滤器设置为FileUpload控件，但是您可以添加仅接受给定文件格式的文件过滤逻辑.该逻辑可以在客户端或服务器端实现.
查看此 [

No. There is no way to set a direct filter to FileUpload control but you can add a file filtering logic that accepts only given file formats. This logic can be implemented on client or server side.
Check out this[^] article for implementation details.

:)

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