警告
这并不可靠,我已经放弃了。
我最终将文件复制到输出文件夹并使用以下代码在同一个 AppDomain 中初始化 ASP.Net:(我对其进行了测试;它有时可以工作)
static class PageBuilder {
public static readonly string PageDirectory = Path.Combine(Path.GetDirectoryName(typeof(PageBuilder).Assembly.Location), "EmailPages");
static bool inited;
public static void InitDomain() {
if (inited) return;
var domain = AppDomain.CurrentDomain;
domain.SetData(".appDomain", "*");
domain.SetData(".appPath", PageDirectory);
domain.SetData(".appVPath", "/");
domain.SetData(".domainId", "MyProduct Domain");
domain.SetData(".appId", "MyProduct App");
domain.SetData(".hostingVirtualPath", "/");
var hostEnv = new HostingEnvironment();//The ctor registers the instance
//Ordinarily, the following method is called from app manager right after app domain (and hosting env) is created
//Since CreateAppDomainWithHostingEnvironment is never called here, I need to call Initialize myself.
//Here is the signaature of the method.
//internal void Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) {
var cmp = Activator.CreateInstance(typeof(HttpRuntime).Assembly.GetType("System.Web.Hosting.SimpleConfigMapPathFactory"));
typeof(HostingEnvironment).GetMethod("Initialize", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(hostEnv, new[] { ApplicationManager.GetApplicationManager(), null, cmp, null });
//This must be done after initializing the HostingEnvironment or it will initialize the config system.
SetDefaultCompilerVersion("v3.5");
inited = true;
}
static void SetDefaultCompilerVersion(string version) {
var info = CodeDomProvider.GetCompilerInfo("c#");
var options = (IDictionary<string, string>)typeof(CompilerInfo).GetProperty("ProviderOptions", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(info, null);
options["CompilerVersion"] = version;
}
public static TPage CreatePage<TPage>(string virtualPath) where TPage : Page {
return BuildManager.CreateInstanceFromVirtualPath(virtualPath, typeof(TPage)) as TPage;
}
//In a base class that inherits Page:
internal string RenderPage() {
var request = new SimpleWorkerRequest("", null, null);
ProcessRequest(new HttpContext(request));
using (var writer = new StringWriter(CultureInfo.InvariantCulture)) {
using (var htmlWriter = new HtmlTextWriter(writer))
RenderControl(htmlWriter);
return writer.ToString();
}
}
InitDomain必须在程序启动时正确调用;否则,它会抛出一个关于配置系统已经初始化的异常。
如果不调用ProcessRequest,则页面的Controls 集合为空。
更新:页面在调用ProcessRequest 期间呈现,因此必须在操作Page 实例后完成。
如果程序有.config 文件,此代码将不起作用;我做了一个方法来设置默认的 C# 编译器版本,没有使用反射的.config 文件。