create barcode image vb.net PREPROCESSOR DIRECTIVES in C#

Drawer Data Matrix ECC200 in C# PREPROCESSOR DIRECTIVES

CHAPTER 23 PREPROCESSOR DIRECTIVES
Data Matrix ECC200 Creation In C#
Using Barcode generation for .NET Control to generate, create Data Matrix 2d barcode image in VS .NET applications.
www.OnBarcode.com
Data Matrix 2d Barcode Recognizer In Visual C#.NET
Using Barcode decoder for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Line Number Directives
EAN-13 Supplement 5 Printer In C#.NET
Using Barcode generation for Visual Studio .NET Control to generate, create EAN13 image in VS .NET applications.
www.OnBarcode.com
Data Matrix 2d Barcode Generator In Visual C#
Using Barcode drawer for VS .NET Control to generate, create Data Matrix ECC200 image in VS .NET applications.
www.OnBarcode.com
Line number directives can do several things, including the following: Change the apparent line numbers reported by the compiler s warning and error messages Change the apparent file name of the source file being compiled Hide a sequence of lines from the interactive debugger The syntax for the #line directives is the following: #line integer #line "filename" #line default #line hidden #line // Sets line number of next line to value of integer // Sets the apparent filename // Restores real line number and filename // Hides the following code from stepping debugger // Stops hiding from debugger
Barcode Printer In C#
Using Barcode drawer for .NET Control to generate, create Barcode image in .NET framework applications.
www.OnBarcode.com
Make Matrix In C#.NET
Using Barcode maker for Visual Studio .NET Control to generate, create Matrix 2D Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
The #line directive with an integer parameter causes the compiler to consider that value to be the line number of the following line of code. Numbering of the subsequent lines continues, based on that line number. To change the apparent file name, use the file name, inside double quotes, as the parameter. The double quotes are required. To return to true line numbering and the true file name, use default as the parameter. To hide a segment of code from the step-through-code feature of the interactive debugger, use hidden as the parameter. To stop hiding, use the directive with no parameter. This feature has, so far, mostly been used in ASP.NET and WPF for hiding compiler-generated code. The following code shows examples of the line number directives: #line 226 x = y + z; // Now considered by the compiler to be line 226 ... #line 330 "SourceFile.cs" // Changes the reported line number and filename var1 = var2 + var3; ... #line default // Restores true line numbers and filename
GTIN - 128 Creation In Visual C#.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create EAN 128 image in .NET applications.
www.OnBarcode.com
Painting 2 Of 5 Standard In C#
Using Barcode printer for Visual Studio .NET Control to generate, create 2 of 5 Standard image in .NET applications.
www.OnBarcode.com
CHAPTER 23 PREPROCESSOR DIRECTIVES
Scanning Data Matrix In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Data Matrix ECC200 Scanner In VS .NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Region Directives
Scanning DataMatrix In Visual Basic .NET
Using Barcode scanner for .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
QR Code JIS X 0510 Printer In Java
Using Barcode maker for Java Control to generate, create QR Code image in Java applications.
www.OnBarcode.com
The region directive allows you to mark, and optionally name, a section of code. The characteristics of the #region directive are the following: It is placed on the line above the section of code you want to mark. It can take an optional string of text following it on the line, which serves as its name. It must be terminated by an #endregion directive, further down in the code.
Generating DataMatrix In Java
Using Barcode generator for Java Control to generate, create ECC200 image in Java applications.
www.OnBarcode.com
USS Code 128 Encoder In None
Using Barcode maker for Microsoft Excel Control to generate, create Code 128 Code Set A image in Microsoft Excel applications.
www.OnBarcode.com
Although region directives are ignored by the compiler, they can be used by source code tools. Visual Studio, for example, allows you to easily hide or display regions. As an example, the following code has a region called Constructors, which encloses the two constructors of class MyClass. In Visual Studio, you could collapse this region to a single line when you didn t want to see it in the code and then expand it again when you needed to work on it or add another constructor. #region Constructors MyClass() { ... } MyClass(string s) { ... } #endregion Regions can be nested, as shown in Figure 23-3.
Creating Code 3 Of 9 In None
Using Barcode generator for Font Control to generate, create Code39 image in Font applications.
www.OnBarcode.com
Creating Barcode In .NET
Using Barcode creation for ASP.NET Control to generate, create Barcode image in ASP.NET applications.
www.OnBarcode.com
Figure 23-3. Nested regions
Barcode Scanner In Visual C#.NET
Using Barcode Control SDK for VS .NET Control to generate, create, read, scan barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Draw PDF417 In .NET Framework
Using Barcode printer for ASP.NET Control to generate, create PDF-417 2d barcode image in ASP.NET applications.
www.OnBarcode.com
CHAPTER 23 PREPROCESSOR DIRECTIVES
Generate GS1-128 In Visual Studio .NET
Using Barcode maker for .NET Control to generate, create EAN / UCC - 13 image in .NET framework applications.
www.OnBarcode.com
Creating QR Code In Java
Using Barcode encoder for Java Control to generate, create QR Code image in Java applications.
www.OnBarcode.com
The #pragma warning Directive
The #pragma warning directive allows you to turn off warning messages and to turn them back on. To turn off warning messages, use the disable form with a comma-separated list of warning numbers you want to turn off. To turn warning messages back on, use the restore form with a list of the warning numbers you want to turn back on.
For example, the following code turns off two warning messages: 618 and 414. Further down in the code, it turns on messages for 618 but leaves the messages for 414 turned off. Warning messages to turn off #pragma warning disable 618, 414 ... Messages for the listed warnings are off in this section of code. #pragma warning restore 618 If you use either form without a warning number list, the command then applies to all warnings. For example, the following code turns off, and then restores, all warning messages. #pragma warning disable ... All warning messages are turned off in this section of code. #pragma warning restore ... All warning messages are turned back on in this section of code.
Copyright © OnBarcode.com . All rights reserved.