我建议使用 MvcMailer 来做你想做的事(你不必为它写代码。它也可以异步完成):
https://github.com/smsohan/MvcMailer/wiki/MvcMailer-Step-by-Step-Guide
更新
正如在 cmets 上所说,自己实现它的解决方案(我仍然认为 MvcMailer 会让你的生活更轻松):
protected string RenderPartialViewToString(string viewName, object model)
{
if (string.IsNullOrEmpty(viewName))
viewName = ControllerContext.RouteData.GetRequiredString("action");
ViewData.Model = model;
using (StringWriter sw = new StringWriter()) {
ViewEngineResult viewResult = ViewEngines.Engines.FindPartialView(ControllerContext, viewName);
ViewContext viewContext = new ViewContext(ControllerContext, viewResult.View, ViewData, TempData, sw);
viewResult.View.Render(viewContext, sw);
return sw.GetStringBuilder().ToString();
}
}
(ASP.NET MVC Razor: How to render a Razor Partial View's HTML inside the controller action)