如何在asp.net中提交之前删除上传的文件 [英] how to remove uploaded file before submitting in asp.net

问题描述

我想从已上传但尚未提交的文件中删除特定文件...

i尝试删除该文件，但在提交后仍然提交....



提前感谢......

i want to remove a particular file from files which are uploaded but not yet submitted...
i tried to remove the file but after submitting it's getting submitted....

thanks in advance......

推荐答案

1.上传控件，选择文件后，按在上传按钮上，文件会自动提交，与您点击页面上的提交按钮或不相关的事实无关！因此，通过使用标准的ASPX上传控件，你无法做到。



2.您可以尝试扩展/自定义ASPX上传控件。这是一个链接： http://www.asp.net/web-forms/videos/how-do-i/how-do-i-extend-and-customize-an-aspnet-服务器控制用于特定目的 [ ^ ]

1.The upload control, after selecting the file, and pressing on Upload button the file is automatically submitted, and is not related with the fact that you click then on a submit button on your page or not! So by using the standard ASPX upload control you cannot do it.

2.You can try by extending/customizing the ASPX upload control. Here is a link about: http://www.asp.net/web-forms/videos/how-do-i/how-do-i-extend-and-customize-an-aspnet-server-control-for-a-specific-purpose[^]

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