.net用HTML开发怎么调试,如何使用ASP.NET MVC在调试中查看控制器生成的html？
这并不容易，因为部分视图结果直接发送到httpcontext.current.response.output，它不返回字符串。您可以使用此扩展方法通过过滤httpcontext输出将其捕获为字符串：
/// Renders a view to string.
public static string RenderViewToString(this Controller controller,
string viewName, object viewData)
{
//Getting current response
var response = HttpContext.Current.Response;
//Flushing
response.Flush();
//Finding rendered view
var view = ViewEngines.Engines.FindPartialView(controller.ControllerContext, viewName).View;
//Creating view context
var viewContext = new ViewContext(controller.ControllerContext, view,
controller.ViewData, controller.TempData);
//Since RenderView goes straight to HttpContext.Current, we have to filter and cut out our view
var oldFilter = response.Filter;
Stream filter = new MemoryStream(); ;
try
{
response.Filter = filter;
viewContext.View.Render(viewContext, null);
response.Flush();
filter.Position = 0;
var reader = new StreamReader(filter, response.ContentEncoding);
return reader.ReadToEnd();
}
finally
{
filter.Dispose();
response.Filter = oldFilter;
}
}并在调试期间使用它：
public PartialViewResult Reload()
{
var result = RenderViewToString("Index",ViewData);
return PartialView("Index");
}Spark的扩展方法：
public static string RenderSparkToString(this Controller controller,
string viewName, object viewData)
{
var view = ViewEngines.Engines.FindPartialView(controller.ControllerContext, viewName).View;
//Creating view context
var viewContext = new ViewContext(controller.ControllerContext, view,
controller.ViewData, controller.TempData);
var sb = new StringBuilder();
var writer = new StringWriter(sb);
viewContext.View.Render(viewContext, writer);
writer.Flush();
return sb.ToString();
}