IsMobileDevice 如何工作? [英] How does IsMobileDevice work?
问题描述
MSDN 让检测移动浏览器听起来如此简单:
MSDN makes it sound so easy to detect a mobile browser:
if (Request.Browser["IsMobileDevice"] == "true" )
{
Response.Redirect("MobileDefault.aspx");
}
实际上，您似乎也可以只检查 Request.Browser.IsMobileDevice.但这实际上是如何工作的?我什至没有 .browser 文件……这里的幕后情况是什么?ASP.NET 2.0 是否有一些内置默认值?
Actually, it looks like you can also just check Request.Browser.IsMobileDevice. But how does this actually work? I don't even have a .browser file... what's going on behind the scenes here? Are there some built-in defaults for ASP.NET 2.0?
推荐答案
.NET 附带了许多 *.browser 文件:
A number of *.browser files are shipped with .NET:
C:WindowsMicrosoft.NETFrameworkv2.0.50727CONFIGBrowsers
运行时使用 *.browser 文件中的正则表达式来匹配传入的 User-Agent 字符串，然后根据它找到的每个匹配设置一组属性(层次结构中可以有多个).
The runtime uses regular expressions from the *.browser files to match against the incoming User-Agent string, and then sets a bunch of properties based on each match it finds (there can be several in the hierarchy).
如果您需要深入的移动设备支持，请考虑安装 MDBF，它增加了对大约 400 台设备的支持:
If you need in-depth mobile device support, consider installing the MDBF, which adds support for about 400 devices:
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