mvc html 生成图片 asp.net mvc5 cs代码中获取视图生成后的HTML

public static class ViewExtensions { /// /// 在控制器内获取指定视图生成后的HTML /// /// 当前控制器的上下文 /// 视图名称 /// 视图所需要的参数 /// 视图生成的HTML public static string GetViewHtml(this ControllerContext context, string viewName, Object param) { if (string.IsNullOrEmpty(viewName)) viewName = context.RouteData.GetRequiredString("action");

context.Controller.ViewData.Model=param;

using (var sw = new StringWriter())

{

ViewEngineResult viewResult = ViewEngines.Engines.FindPartialView(context, viewName);

var viewContext = new ViewContext(context,

viewResult.View,

context.Controller.ViewData,

context.Controller.TempData,

sw);

try

{

viewResult.View.Render(viewContext, sw);

}

catch (Exception ex)

{

throw;

}

return sw.GetStringBuilder().ToString();

}

}

}