[LinqPad clever use]-reflection and call the Dump function in LinqPad in Net MVC, mvclinqpad

[LinqPad clever use]-reflection and call the Dump function in LinqPad in Net MVC, mvclinqpad

LinqPad has a very powerful Dump function. This article explains how to apply the Dump function to. Net MVC Web development.
First look at the effect:

　　

1. Use. Net reflectorto decompile linqpad.exe to find the Dump function definition:

After decompilation, we found that the Dump function called the FormatObject function in the LINQPad. ObjectGraph. Formatters. XhtmlWriter class and converted the object into Html.

 

Ii. Call the FormatObject function through reflection:

Because the FormatObject function is of the protect type, it cannot be called directly and can only be reflected.
　　

3. Use Dump in. Net MVC:

BigDump. cs

using System;using System.Collections.Generic;using System.Linq;using System.Web.Mvc;using System.Reflection;using System.IO;using System.Text;namespace System.Web{    public static class BigDump    {        private static MethodInfo dumpMethodInfo = null;        private static object xhtmlWriterInstance = null;        private static void Init()        {            if (dumpMethodInfo == null || xhtmlWriterInstance == null)            {                var asm = Assembly.LoadFile(HttpContext.Current.Server.MapPath("~/Lib/LINQPad.exe"));                Type t1 = asm.GetType("LINQPad.ObjectGraph.Formatters.XhtmlWriter");                ConstructorInfo t1Constructor = t1.GetConstructor(new Type[] { typeof(TextWriter), typeof(bool) });                xhtmlWriterInstance = t1Constructor.Invoke(new Object[] { new StringWriter(new StringBuilder()), false });                dumpMethodInfo = t1.GetMethod("FormatObject", BindingFlags.Instance | BindingFlags.NonPublic);            }        }        public static MvcHtmlString Render<T>(this T o, string description = "", int? depth = 3)        {            Init();            var result = dumpMethodInfo.Invoke(xhtmlWriterInstance, new Object[] { o, description, depth, new TimeSpan() });            return new MvcHtmlString(result as string);        }        public static List<MvcHtmlString> Stack { get; set; }        static BigDump()        {            Stack = new List<MvcHtmlString>();        }        public static T Dump<T>(this T o, string description = "", int? depth = 3)        {            Stack.Add(o.Render(description, depth));            return o;        }        public static void Clear()        {            Stack = new List<MvcHtmlString>();        }        public static MvcHtmlString Flush()        {            var html = new MvcHtmlString(string.Join("\r\n", Stack.Select(r => r.ToHtmlString()).ToArray()));            Clear();            return html;        }    }}