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Using Reflection.Emit to Precompile Expressions to MSIL

by Steve Marsh

The classes in this project allow you to parse text expressions entered by a user and compile them to a .NET assembly. This assembly can be executed on the fly, or saved to a DLL.

Building a Simple .NET Compiler

by Jason R. Fruit

Implement a compiling calculator to learn about .NET CIL compilation

Getting Started with Automated White Box Testing (and Pex)

by Jonathan de Halleux, Nikolai Tillmann

Pex is a new tool that helps in understanding the behavior of .NET code, debugging issues, and in creating a test suite that covers all corner cases -- fully automatically.

Introduction to Creating Dynamic Types with Reflection.Emit: Part 2

by jconwell

Part 2 of an introduction to creating dynamic types. This article shows how to actually generate the methods in a dynamic type and how to call them.

Latest Articles

.NET – 5 Free Decompilers

by Mark Pelf

Overview of 5 free .NET Decompilers

HigLabo.Mapper (Zero Configuration, Full Customization, Easy to Use) and Inside of Creating Mapping Library

by Higty

Design mapping rule by test case and write IL code for good performance

DotNetPeLib: A Library to Read and Generate .NET Assemblies in C++11

by Alexandre Bencz

DotNetPELib is a library which abstracts managed information such as namespaces, classes, fields, methods, and instructions. The information can then be used to generate assembly language source files, or PE executables or DLLs.

Compiling Your C Code to .NET - Part 1

by Alexandre Bencz

With this new OrangeC/C++ compiler back-end, you can compile your C code to .NET

All Articles

MSIL

In .NET what does default the values of fields?

9 Mar 2018 by #realJSOP

Google is your friend: c# object defaults - Google Search[^]

Precompile .NET code into machine code

25 Mar 2011 by Abhinav S

Have a look at the NGEN tool[^].

if you want to implement MVC like struture in ASP.NET how will you call controller

5 Dec 2014 by Abhinav S

These beginner links should help you -ASP.NET MVC - Controllers[^]Controllers and Action Methods in ASP.NET MVC Applications[^]ASP.NET MVC Controller Overview (C#)[^]

Start-to-Finish Visual Basic 2005: Chapter 1 - Introducing .NET

27 Oct 2006 by Addison-Wesley

An introduction to .NET.

Reply to Scott Henselman's Interview Questions

10 Jan 2009 by Adnan Aman

This is my very humble effort to reply Mr. Scott Henselman's Interview questions with great respect for him.

Experimenting with C# 6’s New Features

23 Jan 2016 by Afzaal Ahmad Zeeshan

C# 6 has been available for a long time, by now! Many developers have written many guides to "list" the features. I have written this post to explain those features, and to explain whether they are actually new or are they just sugar coating to the compiler.

In .NET what does default the values of fields?

9 Mar 2018 by Afzaal Ahmad Zeeshan

Apart from what John suggested in Solution 1, please also read about value-types and the reference-types in .NET framework context. In the context, if the developer leaves out the initialization step and only performs declaration, the default value is assigned — which is obvious. I am not an...

Can't figure out why this DynamicMethod so much slower than the native c# method.

17 Nov 2012 by Alan N

I modified your code slightly so that it could be compiled using all .NET versions.With .NET2 and 3.5 there was no difference in execution time between the standard and dynamic methods, both taking about 1400 - 1500ms in release mode.However .NET 4 (v4.0.30319) was a different story...

Working with SQLBulkOperations

29 Aug 2012 by aLcoHolicDevil

I am working with sqlbulkOperations, I got one code from msdn but i have to change database to .mdb how do i do that, For instance i want to pass database name as c:\test\test.mdb instead of NorthWind here. retcode = SQLConnect(hdbc, (SQLCHAR*) "Northwind", SQL_NTS, (SQLCHAR*) NULL, 0,...

Fast late-bound invocation through DynamicMethod delegates

11 Jul 2005 by Alessandro Febretti

This article describes a way to achieve fast late-bound invocation through the generation of custom MSIL code at runtime.

LCC msil compiler functions

27 Dec 2012 by Alexandre Bencz

Hi, I'm playing with lcc compiler for .net http://research.microsoft.com/en-us/downloads/b994fbbf-f7bb-4a4a-998c-2f6a6d340ec6/[^]https://sites.google.com/site/lccretargetablecompiler/[^]So, but, when I try to build the il generate code, I got that erro:C:\lcc>set...

DotNetPeLib: A Library to Read and Generate .NET Assemblies in C++11

2 Jan 2020 by Alexandre Bencz

DotNetPELib is a library which abstracts managed information such as namespaces, classes, fields, methods, and instructions. The information can then be used to generate assembly language source files, or PE executables or DLLs.

Compiling Your C Code to .NET - Part 1

17 Dec 2019 by Alexandre Bencz

With this new OrangeC/C++ compiler back-end, you can compile your C code to .NET

Observable property pattern, memory leaks, and weak delegates for .NET

4 Dec 2006 by Alexey A. Popov

This article is dedicated to the observable property design pattern, a very nice pattern used in the Microsoft .NET Framework, a possible memory leak problem with it, and gives a couple of ways to solve it.

virtual-machine

How to disable Safemode option in Windows 7 Machine

20 Dec 2012 by AnkitGoel.com

This may...

Adding DOC, RTF, and OOXML Export Formats to the Microsoft Report Viewer Control

31 Jul 2008 by Anton Ponomarev

By following steps outlined in this article, you will be able to get Report Viewer to generate reports in Microsoft Word formats (DOC, RTF, WordprocessingML, and OOXML) when working in the local mode.

Protect Your Source Code from Decompiling or Reverse Engineering .NET Assemblies

5 Nov 2016 by Arun Endapally

How to protect your source code from decompiling or reverse engineering

A High Performance Binary Serializer using Microsoft Common Intermediate Language

1 Feb 2011 by asheesh goja

A high performance binary serializer using Microsoft Common Intermediate Language

How useful would it be if...

25 Nov 2009 by Aviad P.

Post an article about it - I am sure creative people will find good uses for it.

is Android Development a good carrer option

28 Feb 2012 by Bernhard Hiller

Think of your time horizont!When I wrote my first lines of code more than 30 years ago, software development was really different from what it is now: Object oriented programming, graphical user interface, internet, ...What ever you chose now, be prepared for a changing future, and stay...

An Overview of C# 4.0

13 Nov 2008 by Buu Nguyen

Discusses the new features of C# 4.0 including dynamic lookup, covariance/contravariance generics, named and optional paramters

Fasterflect - a fast and simple API for Reflection invocation

9 Aug 2009 by Buu Nguyen

Examine the implementation, API, and performance for Fasterflect, an alternative to the .NET Reflection API.

C# Open Source Managed Operating System - Intro to Plugs

4 Jul 2011 by Chad Z. Hower aka Kudzu

Introduction to writing plugs in Cosmos in C#, Assembly, or X#

Visual Studio X86 Assembly Debugger (C# Open Source Managed Operating System)

4 Jul 2011 by Chad Z. Hower aka Kudzu

Several users have written to me requesting information on the new Cosmos X86 assembly level debugger. Because of the great interest I have written this short preview article.

A Better Loader for ORM Frameworks

10 Feb 2006 by Chris Stefano

Generate loader classes for faster operation using Reflection.Emit

Building Security Awareness in .NET Assemblies : Part 1 - Learn to break a .NET Assembly

31 Oct 2004 by Chua Wen Ching

Building Security Awareness in .NET Assemblies : Part 1 of 3

Building Security Awareness in .NET Assemblies : Part 2 - Learn to protect your .NET assemblies from being tampered

31 Oct 2004 by Chua Wen Ching

Building Security Awareness in .NET Assemblies : Part 2 of 3

Building Security Awareness in .NET Assemblies : Part 3 - Learn to break Strong Name .NET Assemblies

31 Oct 2004 by Chua Wen Ching

Building Security Awareness in .NET Assemblies : Part 3 of 3

is Android Development a good carrer option

28 Feb 2012 by CPallini

In my personal opinion, yes, it is good. However you should really check the job opportunities locally, in your Country.

.NET Internals and Code Injection

14 May 2008 by Daniel Pistelli

An article about .NET internals and code injection

.NET Internals and Native Compiling

30 May 2008 by Daniel Pistelli

An article about .NET internals and native compiling.

virtual-machine

is Android Development a good carrer option

28 Feb 2012 by dare2dash

is swiching over to android apps dev is good ,i'm new in this field

Converting Legacy Assemblies to WCF

18 Apr 2007 by Dave Curylo, MCAD

How to expose legacy or third party assemblies over WCF with simple modifications to the MSIL.

Showing a message on top of application when system has no internet connectivity

8 Mar 2011 by DEB4u

Hello there,I've created windows application which uses an remote online MYSQL database.My requirement is, whenever system has no internet connectivity, a pop up message should come and till the connection re established, the user won't be able to do anything except closing the...

How to Embroid Glyph from True Type Font File

11 Jan 2016 by Den367

Using System.Windows.Media library to create embroidery design of a glyph from true type font file

Unexpected Garbage Collection Results Courtesy of Your Compiler

9 Aug 2013 by Dennis C. Dietrich

Clarifying how the .NET GC identifies objects to collect once and for all... hopefully...

garbage-collection

Is there a 96-bit datatype in C++ like .NET's system.decimal?

26 Oct 2020 by deXo-fan

Hello, Well, the title of this question is perhaps self explanatory, but at the same time I already know the answer to that question is "No". So allow me to elaborate my question and goal a bit. There used to be a 12-byte integer type in C++ a...

validations for drodown list in mvc4

29 Jul 2014 by Dileep Ashok

Hi..You can use data annotation validation in MVC.like[Required(ErrorMessage = "Please select at least one option")] public int ddlId{ get; set; }

I am doing my Semester project Web based .net. I have written a code for signup form and insert into the database, but it reguraly giving error or ExecuteNotQuery, Plz help me to improve my...

23 Feb 2014 by Dumpala Charan

if you are using msaccess as Database execute the query in that so that you will get to know the problem in that. or Try by keeping square brackets to the coloum names. Hope it will help you.

FlingOS: Teaching OS dev in C#

16 Sep 2015 by Ed Nutting

In this article I discuss the innovative approach, taken by FlingOS, to teaching OS and low-level development to high-level developers using C#.

WebForms Automatic Generation Using Reflection (1)

22 Jun 2005 by ediazc

Describes how to generate a WebForm using reflection from a class.

ILMerge [dll_portable]

1 Jul 2010 by emicroxxx

Transforming ILMerge.exe to DLL [for convenient usage only]

Unmanaged code can wrap managed methods

28 Aug 2004 by Emilio Reale

Exporting methods for the .NET class inside VB6 or unmanaged C++.

Reflecting Within a Method Body

15 May 2018 by Eric Lynch

Extends .NET reflection to decode the byte array returned by System.Reflection.MethodBody.GetILByteArray(), discusses the techniques to achieve this, and provides a brief primer on .NET reflection.

Showing a message on top of application when system has no internet connectivity

8 Mar 2011 by Espen Harlinn

How To: (Almost) Everything In WMI via C# - Part 3: Hardware[^] allows you to detect whether your computer is connected to a network - remember the computer may be connected to a network without being able to access the internet.The...

Don’t rely on obfuscation

21 Feb 2008 by Fady Anwar

An article demonstrating why you should not rely on obfuscation to protect your .NET applications.

Using CAPICOM in .NET for Digital Signatures with ASCII/UTF8 Content

26 Feb 2005 by Fatih KIHTIR

Modifying CAPICOM Runtime Callable Wrapper (RCW) generated by TlbImp.exe to enable CAPICOM to process digital signatures with UTF8/ASCII content (mostly signed by Java).

Showing a message on top of application when system has no internet connectivity

8 Mar 2011 by fjdiewornncalwe

I wouldn't bother with a thread. If the connection attempt fails, you can simply tell the user that the connection to the database is not available and to restart the application later. Then you can either close the app yourself or let the user close it and then restart it later. Whether or not...

The C# Trickbox

16 Dec 2013 by Florian Rappl

A close look at some powerful features of C# that are less known but sometimes come in very handy

MAGES - Ultimate Scripting for .NET

10 Jul 2016 by Florian Rappl

This article introduces MAGES - a very simple, yet powerful, expression parser and interpreter.

.NET-Compiler-Platform

Modernize Your C# Code - Part II: Methods

7 May 2019 by Florian Rappl

Want to modernize your C# codebase? Let's continue with methods.

.NET COM Interop using Postbuild

30 Sep 2013 by Florian Rosmann

COM Interop using a little post compiler. As a result, it is possible to use multithreading in combination with COM interfaces.

Analysis of the compiled CIL (Part 1)

30 Mar 2007 by GaryWoodfine

Analysis of the CIL generated by the .net compiler for 4 Languages in VS 2005

virtual-machine

VB vs. C# MSIL Code Generation: Are the results equal?

7 Feb 2005 by Giancarlo Aguilera

A discussion of some differences between VB and C# MSIL code.

Hacking out the C# 2.0 Iterators

4 Apr 2005 by Giancarlo Aguilera

A hack that enables C# 2.0 Iterators with .NET 1.1.

HigLabo.Mapper (Zero Configuration, Full Customization, Easy to Use) and Inside of Creating Mapping Library

5 Jul 2020 by Higty

Design mapping rule by test case and write IL code for good performance

Analyze IL and say hello to your performance

3 Sep 2004 by Hugo Pais Batista

Avoid unnecessary variable declaration and redundant instructions. Analyzing and understanding the compiler and generated IL instructions in a simple example, saving your performance.

IlPad

21 Sep 2012 by icemanind

A program to compile C# code into MSIL code

Automated MSIL/PE verification using ILSpy

30 Sep 2013 by Imre S Lengyel

Use ILSpy to perform a more comprehensive check on Emitted assembiles

Working with SQLBulkOperations

29 Aug 2012 by JackDingler

Run odbcad32.exe and add your database as a DSN, and use the name you provide for the DSN, in your code.Connecting with SQLConnect[^]

access data base is not uploading to the server in asp.net.....

23 Jun 2013 by jagdish123061

Hello guys I had uploaded my asp.net website and database to server using core ftp.I had modified my database and trying to upload it to the server using core ftp but it is displaying error like 'Could not access file because it is used by another process'.because when some one opens...

Fast Dynamic Property Access with C#

22 Mar 2005 by James Nies

Reflecting on Properties is nice, but often it can be too slow. This article describes an alternative method for dynamic property access.

Building a Simple .NET Compiler

26 Jan 2018 by Jason R. Fruit

Implement a compiling calculator to learn about .NET CIL compilation

Introduction to Creating Dynamic Types with Reflection.Emit

6 Mar 2006 by jconwell

Introduction to creating dynamic types with Reflection.Emit.

Introduction to Creating Dynamic Types with Reflection.Emit: Part 2

1 May 2006 by jconwell

Part 2 of an introduction to creating dynamic types. This article shows how to actually generate the methods in a dynamic type and how to call them.

Code Analysis Tools - A collection of IL code analysis tools

1 Sep 2006 by jconwell

This tool analyses the IL of a list of assemblies, looking for types, methods, and fields that are not used by another list of assemblies. This lets you see if you have unused legacy code lying around that should be cleaned up.

Learning Binary and Hexadecimal

24 Nov 2014 by Jeremy Falcon

A beginner's guide to talking like a computer.

.NET CLR Injection: Modify IL Code during Run-time

7 Aug 2014 by Jerry.Wang

Modify methods' IL codes on runtime even if they have been JIT-compiled, supports release mode / x64 & x86, and variants of .NET versions, from 2.0 to 4.5.

Dynamic List Sorting

14 Feb 2006 by Johannes Hansen

Dynamically sorting a list by using dynamic methods and delegates.

is there any effect to the existing HTTPS certificate if a sign again.

23 Mar 2015 by John550

i have a MSI setup file which was singed (HTTPS).i have added one property to MSi ,after adding property again i tried to sign the certificate using openSSL based sign code tool.whether now this certificate will be self signed certificate?.if it is self signed it will effect my existing...

Getting Started with Automated White Box Testing (and Pex)

28 Jan 2009 by Jonathan de Halleux, Nikolai Tillmann

Pex is a new tool that helps in understanding the behavior of .NET code, debugging issues, and in creating a test suite that covers all corner cases -- fully automatically.

Is there a 96-bit datatype in C++ like .NET's system.decimal?

26 Oct 2020 by KarstenK

There is support in some C++ libraries like Boost for that. Some compilers are not handling exact sizes for data types, but are using alignment. The advantage is that full bytes are used and so the processing speed is better, because no efforts...

Dynamic Interface Implementation

3 Apr 2014 by Kemeny Attila

Generate proxy class dynamically which implements interface

How to use SMO transfer method

1 Feb 2021 by Kevin Brady

I have downloaded and installed the latest version of MSSQL Server Management Studio. From the information that I found on-line, this should have installed all of SMO. Is this correct? I cannot find the dll "Microsoft.SqlServer.Management". ...

Custom Assemblies in SQL Server 2005 Reporting Services

25 Aug 2005 by Krishna Prasad V.R.

This article focuses on the problems you might face and the probable solution when using .NET custom assemblies. This article also gives in-depth details of modifying .NET assemblies for which you do not have the source code.

SQL-Server-2005

Using the _CDECL calling convention in C# (changing compiler service)

22 Dec 2005 by Mainak Saha

An article on using the __cdecl callback from C#, changing compiler service.

.NET – 5 Free Decompilers

2 Mar 2023 by Mark Pelf

Overview of 5 free .NET Decompilers

The .NET IL Interpreter

6 Apr 2017 by matt warren

Whilst writing a previous blog post I stumbled across the .NET Interpreter, tucked away in the source code.

ILRewriting for beginners

27 Sep 2012 by Mattias Högström

Runtime IL-Rewriting can be used to add behavior such as logging to applications, or redirect calls from one API to another. This article and accompanying source code explains how to substitute a method call at runtime.

MFC Menu Button with Image

24 Sep 2013 by Maximilien

What abou a CBitmapButton ?If you want a full bitmap button you will have to "owner draw" it.Just google it; there are tons of examples here on code project.

Kerosene ORM: a dynamic, configuration-less and self-adaptive ORM for POCO objects supporting a SQL-like syntax from C#

1 Mar 2015 by mbarbac

The seventh version of the dynamic, configuration-less and self-adaptive Kerosene ORM library, that provides full real support for POCO objects, natural SQL-like syntax from C#, and advanced capabilities while being extremely easy to use.

Kerosene ORM Dynamic Records In Depth

1 Mar 2015 by mbarbac

A deep dive tutorial on Kerosene ORM Dynamic Records and other core concepts of the library

is Android Development a good carrer option

28 Feb 2012 by Mehdi Gholam

Currently Android has around 50% market share on mobile devices. http://www.dailytech.com/Android+Market+Share+Reaches+56+Percent+RIMs+Microsofts+Cut+in+Half/article22852.htm[^]So choosing to develop for that platform is a good option, the real question is how good you are at development...

MSIL Advantages Explanation

18 Feb 2014 by Mehdi Gholam

Both 1,2 have nothing to do with MSIL and there is no benefit since they are handled by the CLR (common language runtime) and BCL (base class libraries) internally.Generally you don't need to know IL unless you are doing runtime code generation or reverse engineering.

How to control .NET JIT from C++?

5 Jun 2015 by Member 10990410

I am writing plugin for Photoshop.Photoshop exposes C plug-in interface.I use WPF for graphic user interface, and C++/CLI for an intermediate layer.In one moment I call DoUI() function from C code. DoUI() is in the .cpp file compiled with /clr switch on. It means that DoUI() is...

How to change value/field in a config file using wix

24 Apr 2016 by Member 11873265

How to edit a value/field in a configuration file using wix . My research: my custom dialog which ask for user input will be as:The user entered value should be Send to custom action. public class CustomActions { [CustomAction] public static ActionResult SaveUserInfo(Session...

Windows-Installer

Checking for a port availability from server/IP address

24 Apr 2016 by Member 11873265

How to check for a availability of port When Server address or IP address is given as input by a user. My Research: A custom action should be implemented A custom dialog should be created in Wix which has a editbox and save the text in a property Send the property value to the custom action...

Windows-Installer

Disable print to pdf in C++ printdlg

17 Dec 2021 by Member 15265176

I am using PRINTDLG library for an old windows application, that has to print some files. I configured it in a way that it pick up the default printer and print the document without showing any dialog box. But the problem is when there is no...

I am doing my Semester project Web based .net. I have written a code for signup form and insert into the database, but it reguraly giving error or ExecuteNotQuery, Plz help me to improve my...

23 Feb 2014 by Muhammad Taqi Hassan Bukhari

The Code is Registration

I am doing my Semester project Web based .net. I have written a code for signup form and insert into the database, but it reguraly giving error or ExecuteNotQuery, Plz help me to improve my...

23 Feb 2014 by Muhammad Taqi Hassan Bukhari

Error Fixed, I just change the table's Columns name.connParam = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\\Projects\\App_Data\\Database.mdb; Persist Security Info=False"; Conn = new OleDbConnection(connParam); try { Conn.Open(); ...

Moving Memory in .NET using VB and the CIL

22 Jun 2014 by Nathaniel Moschkin

Topics and methods on programming in .NET and performance considerations

Dependency Injection with ObjectPoolManager (OPM)

31 Oct 2010 by NavnathKale

Lightweight and simple

Precompile .NET code into machine code

25 Mar 2011 by Nick Reshetinsky

Hi guys!I'm creating an application which has a bunch of complex algorithms that require pretty much time to execute ... I know that C# code (MSIL) is converted to machine code due to CLR..but how can I manually precompile my critical and complex methods into machine code at...

How to Protect your Code from Prying Eyes and Theft

16 Jun 2007 by NineRays, Mark Sochan

Most .NET software projects can easily be tampered, exposing your software to security risks and theft of intellectual property. This article shows different techniques used to protect .NET code and determine the best protection for you. 9rays.Net offers you Spices.Obfuscator to these ends.

product-showcase

Precompile .NET code into machine code

25 Mar 2011 by OriginalGriff

If you are sure it is the algorithms that are slowing things down (and you would be surprised how often it turns out to be something else entirely) then the best course of action is to recode them into a DLL in a native language, and call that from your C#. Profile it first, and check that...

I am doing my Semester project Web based .net. I have written a code for signup form and insert into the database, but it reguraly giving error or ExecuteNotQuery, Plz help me to improve my...

23 Feb 2014 by OriginalGriff

Start off by not doing it like that!Not only does it leave you wide open to SQL Injection attacks, but it probably contributes to (or causes) your problem. Never concatenate strings to form an SQL command! Always use parameterised queries.protected void Button1_Click(object sender, EventArgs...

[.net] how the MSIL code is being executed without compilation ?

28 Jul 2017 by OriginalGriff

Quote: So how the MSIL is getting executed ? There is a wealth of resources on t'internet which explain this: Code Execution Process[^] provides a nice overview, but Google can find you more details. Quote: Can you also explain me how the Assembly code executes ? For example lets assume we have...

Is there a 96-bit datatype in C++ like .NET's system.decimal?

26 Oct 2020 by OriginalGriff

Yes it can be done: just because something isn't directly supported by the processor doesn't mean you can't use it in assembler - think about a BigInt value where each decimal digit is stored in a nibble - so two digits fit in a byte - and an...

Can't figure out why this DynamicMethod so much slower than the native c# method.

16 Nov 2012 by Pascal Ganaye

I wrote a simple object copier that copies public properties.I can't figure out why the Dynamic method is a lot slower than the c# version.DurationsC# method : 4,963 ms Dynamic method : 19,924 msFull (console program) code:using System;using...