Dana L. Wyatt's Application Development Using Visual Basic® and .NET PDF

By Dana L. Wyatt

ISBN-10: 0130933821

ISBN-13: 9780130933829

This ebook supplies skilled builders the sensible perception they should construct company functions utilizing visible simple .NET. utilizing huge code examples and a working case examine, the authors remove darkness from the .NET thoughts and applied sciences that provide builders the best energy and cost. They disguise the full technique of developing a .NET software: constructing an easy .NET console program; including a home windows types interface; setting apart performance inside parts; offering database entry through ADO.NET; securing your code; and utilizing ASP.NET to create net purposes and companies.

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You can use the string concatenation operator & to build up an output string. ToString()) The output is all on one line: Product of 24 and 5 is 120 Placeholders A more convenient way to build up an output string is to use placeholders such as {0}, {1}, and so on. WriteLine("Product of {0} and {1} is {2}", x, y, z) The program OutputDemo illustrates the output operations just discussed. We will generally use placeholders for our output from now on. Placeholders can be combined with formatting characters to control output format.

And the assignment operators ^=, *=, /=, \=, +=, -=, and &= provide shortcuts for common operations. Precedence rules determine the order in which operators within expressions are evaluated. Operators are applied in the precedence order shown in Table 3-1. Operators within a row have equal precedence. For operators of equal precedence within the same expression, the order of evaluation is from left to right, as they appear in an expression. Order of evaluation can be explicitly controlled by using parentheses.

If you would like to try another simple experiment, create another new project in Visual Studio. In the Templates panel you will have to scroll to find the Console Application project type. Again, make the location the Demos directory for this chapter and accept the suggested name of ConsoleApplication1 for your new application. For a console project, there is no form. Instead, Visual Studio shows a code window. NET Language 37 main window for the new project, where we have added just a single line of code, creating a simple "Hello, world" application.

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Application Development Using Visual Basic® and .NET by Dana L. Wyatt


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