如何检查fileupload中的上传文件是否是使用C＃的视频文件 [英] How to check uploaded file in fileupload is video file or not using C#

问题描述

如何检查fileupload中的上传文件是否是使用C＃的视频文件。

如果任何人更改视频格式的任何文件的扩展名，如.avi，.mp4等，那么它必须是不上传并抛出错误...

How to check uploaded file in fileupload is video file or not using C#.
if any one change the extension of any file in video format like .avi,.mp4 etc that time it must be not upload and throw error...

推荐答案

string fileName = FileUpload1.FileName;
           string FileExtension = fileName.Substring(fileName.LastIndexOf('.') + 1).ToLower();
           if (FileExtension == "flv" || FileExtension == "wmv")
           {



           }

正如谢尔盖所​​说，如果你想玩它是不合逻辑的。

你可以尝试使用以下Java Script函数来检查格式。



函数ValidateVideoupload（Source，flag）

{

var pathTextBox = document.getElementById（'txtBoxFilePath'）;

var FileUploadPath = pathTextBox.value;





var FileExtension = FileUploadPath.substring（FileUploadPath.lastIndexOf（'。'）+ 1）.toLowerCase（）;





if（FileExtension ==AVI|| FileExtension ==MP4|| FileExtension ==DAT|| FileExtension ==MPEG|| FileExtension ==3gp ）

{

flag.IsValid = true; //允许上传视频文件

}

else

{

flag.IsValid = false; //不允许上传视频文件

}





}





}

As Sergey said it is not logical if you want to play it.
Any way you can try with following Java Script function for check formats.

function ValidateVideoupload(Source, flag)
{
var pathTextBox = document.getElementById('txtBoxFilePath');
var FileUploadPath = pathTextBox.value;


var FileExtension = FileUploadPath.substring(FileUploadPath.lastIndexOf('.') + 1).toLowerCase();


if (FileExtension == "AVI"||FileExtension == "MP4"||FileExtension == "DAT"||FileExtension == "MPEG"||FileExtension == "3gp")
{
flag.IsValid = true; // Allow to upload Video File
}
else
{
flag.IsValid = false; // Don't allow to upload Video file
}


}


}

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