dotnet core barcode generator

.net core barcode

.net core barcode

dotnet core barcode generator

dotnet core barcode generator,

.net core barcode generator,
.net core barcode generator,

dotnet core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
.net core barcode generator,
.net core barcode,
dotnet core barcode generator,
.net core barcode,
.net core barcode,
.net core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
.net core barcode,
.net core barcode,

.net core barcode,
dotnet core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
.net core barcode generator,
.net core barcode,
.net core barcode generator,
.net core barcode generator,
.net core barcode generator,
.net core barcode,
dotnet core barcode generator,
.net core barcode,
.net core barcode,
.net core barcode generator,
.net core barcode generator,
dotnet core barcode generator,
dotnet core barcode generator,
dotnet core barcode generator,
.net core barcode,
.net core barcode generator,
.net core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
.net core barcode generator,
.net core barcode generator,
.net core barcode,
dotnet core barcode generator,
.net core barcode generator,
.net core barcode,
.net core barcode generator,
dotnet core barcode generator,
.net core barcode,
.net core barcode,
.net core barcode generator,
.net core barcode,
.net core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
.net core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
dotnet core barcode generator,
dotnet core barcode generator,
.net core barcode generator,
.net core barcode,
dotnet core barcode generator,
.net core barcode,
.net core barcode generator,
.net core barcode,

static void Main(string[] args) { Console.WriteLine("***** The Amazing Dynamic Assembly Builder App *****"); // Get the application domain for the current thread. AppDomain curAppDomain = Thread.GetDomain(); // Create the dynamic assembly using our helper f(x). CreateMyAsm(curAppDomain); Console.WriteLine("-> Finished creating MyAssembly.dll."); // Now load the new assembly from file. Console.WriteLine("-> Loading MyAssembly.dll from file."); Assembly a = Assembly.Load("MyAssembly"); // Get the HelloWorld type. Type hello = a.GetType("MyAssembly.HelloWorld"); // Create HelloWorld object and call the correct ctor. Console.Write("-> Enter message to pass HelloWorld class: "); string msg = Console.ReadLine(); object[] ctorArgs = new object[1]; ctorArgs[0] = msg; object obj = Activator.CreateInstance(hello, ctorArgs); // Call SayHello and show returned string. Console.WriteLine("-> Calling SayHello() via late binding."); MethodInfo mi = hello.GetMethod("SayHello"); mi.Invoke(obj, null); // Invoke method. mi = hello.GetMethod("GetMsg"); Console.WriteLine(mi.Invoke(obj, null)); } In effect, you have just created a .NET assembly that is able to create and execute .NET assemblies at runtime! That wraps up the examination of CIL and the role of dynamic assemblies. I hope this chapter has deepened your understanding of the .NET type system and the syntax and semantics of CIL.

Summary

Earlier in the chapter you created a script using redirection. That script was, to say the least, minimalist. All programs, even a one-liner, require documentation. Information should include at least the author, the date, and a description of the command. Open the file bin/hw in your text editor, and add the information in Listing 1-1 using comments. Listing 1-1. hw #!/bin/bash #: Title #: Date #: Author #: Version #: Description #: Options : : : : : : hw 2008-11-26 "Chris F.A. Johnson" <shell@cfajohnson.com> 1.0 print Hello, World! None

This chapter provided an overview of the syntax and semantics of CIL. Unlike higher-level managed languages such as C#, CIL does not simply define a set of keywords, but provides directives (used to define the structure of an assembly and its types), attributes (which further qualify a given directive), and opcodes (which are used to implement type members).

The name of the entity type a mapping applies to (node, user, comment, etc.) The name of the bundle a mapping applies to

You were introduced to a few CIL-centric programming tools (ilasm.exe, SharpDevelop and peverify.exe), and learned how to alter the contents of a .NET assembly with new CIL instructions using round-trip engineering. After this point, you spent time learning how to establish the current (and referenced) assembly, namespaces, types and members. I wrapped up with a simple example of building a .NET code library and executable using little more than CIL, command line tools, and a bit of elbow grease. Finally, you took an introductory look at the process of creating a dynamic assembly. Using the System.Reflection.Emit namespace, it is possible to define a .NET assembly in memory at runtime. As you have seen firsthand, using this particular API requires you to know the semantics of CIL code in some detail. While the need to build dynamic assemblies is certainly not a common task for most .NET applications, it can be very useful for those of you who need to build support tools and other programming utilities.

.NET 4.0 introduces a new keyword to the C# language, specifically, dynamic. This keyword allows you to incorporate scripting like behaviors into the strongly typed world of semi-colons and curly brackets. Using this loose typing, you can greatly simplify some complex coding tasks and also gain the ability to interoperate with a number of dynamic languages (such as IronRuby or IronPython) which are .NET savvy. In this chapter, you will learn all about the dynamic keyword, and understand how loosely typed calls are mapped to the correct in memory object using the Dynamic Language Runtime (or, DLR). Once you understand the services provided by the DLR, you will see examples of using dynamic types to streamline how you can perform late bound method calls (via reflection services) and to easily communicate with legacy COM libraries.

The registry table stores a function, class, or interface name and the file it is in. Table A-76. registry

Note Don t confuse the C# dynamic keyword with the concept of a dynamic assembly (see 17). While you could use the dynamic keyword when building a dynamic assembly, these are ultimately two independent concepts.