小编Jon*_*ara的帖子

我有一些现有的 C# 代码，用于System.Drawing.Common测量字符串的近似宽度（以像素为单位）：

var text = "abc123 this is some long text my dog's name is fido.";

using (var bitmap = new Bitmap(500, 50))
using (var graphics = Graphics.FromImage(bitmap))
{
    // Size: 9 Points
    using var font = new System.Drawing.Font(familyName: "Times New Roman", emSize: 9f);
    
    var ms = graphics.MeasureString(text, font);
    
    // Output: 'abc123 this is some long text my dog's name is fido.' via System.Drawing: 394.00195 x 22.183594
    Console.WriteLine($"'{text}' via System.Drawing: {ms.Width} x {ms.Height}");
}

升级到 后.NET …

我对此很陌生,所以请耐心等待.这是我的代码.即使选择了多个文件,它也只下载一个文件.

foreach(String fileName in fileNameList)
{
    FileInfo updateFile = new FileInfo("C:/inetpub/wwwroot/w4/DanyaWebReports/Data/" + fileName);
    Response.ContentType = "application/octet-stream";
    Response.AddHeader("content-disposition", "attachment;filename=\"" + Path.GetFileName(updateFile.FullName) + "\"");
    Response.AddHeader("content-length", updateFile.Length.ToString());
    Response.TransmitFile(updateFile.FullName);
    Response.Flush();
}