上传文件大小处理

在Default.aspx中增加"FileUpload"控件和一个Button控件;

插入以下代码

protected void Button1_Click(object sender, EventArgs e)
    {
        HttpPostedFile myfile = FileUpload1.PostedFile;
        string filename = myfile.FileName.Substring(myfile.FileName.LastIndexOf(@"\") + 1);
        if (myfile.ContentLength > 1024000)
        {
            myfile.SaveAs(@"c:\" + filename);
        }
        else
        {
            myfile.SaveAs(@"d:\" + filename);
        }
    }