如何在aspx文件上传控件中获取文件的大小？ [英] How to get size of a file in aspx file upload control?

问题描述

我想获取aspx文件上传控件中文件的大小..任何人都可以帮助我吗？

I want to get the size of a file in aspx file upload control..can anyone help me?

推荐答案

fileUpload1.FileBytes.Length

会给你大小的字节数



例子

will give you size in bytes

Example

int sizeinbytes=fileUpload1.FileBytes.Length;

也



你可以尝试

also

you can try

int sizeinbytes= FileUpload1.PostedFile.ContentLength;

以用户友好的方式更新显示尺寸：

Updated to display size in user friendly manner:

string[] sizes = { "B", "KB", "MB", "GB" };
double sizeinbytes=fileUpload1.FileBytes.Length;
int order = 0;
while (sizeinbytes>= 1024 && order + 1 < sizes.Length) {
    order++;
    sizeinbytes= sizeinbytes/1024;
}

// Adjust the format string to your preferences. For example "{0:0.#}{1}" would
// show a single decimal place, and no space.
string result = String.Format("{0:0.##} {1}", sizeinbytes, sizes[order]);

如果你想要通过javascript获取文件大小，

然后检查此解决方案



文件大小检测 [ ^ ]

int imageSize = myFileUploadControl.PostedFile.ContentLength;

谢谢

Thanks

内容长度= FileUpload1.PostedFile.ContentLength;



文件名legth = FileUpload1.FileName.Length;



其中 FileUpload1 是文件上传控件名称..



...

content length = FileUpload1.PostedFile.ContentLength;

file name legth = FileUpload1.FileName.Length;

where FileUpload1 is a file upload control name..

...

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