Download A Programmer’s Guide to ADO.NET in C# by Mahesh Chand PDF

By Mahesh Chand

A Programmer's advisor to ADO.NET in C# starts off via taking readers via a fast moving review of C# after which delves into ADO.NET. Why may still C# programmers use it rather than the present applied sciences? What new performance does it supply? The chapters that stick to wade through the main points on all the significant facts prone of the .NET platform (OleDb, SQL Server, and ODBC) that assist you to learn and write information to the distinct database. those chapters additionally function a very good reference for taking a look up specified tools and homes for those information supplier sessions. Authors Chand and Gold additionally express C# programmers the way to paintings with XML periods and the way to combine XML into the ADO.NET architecture.
The booklet offers programmers with convenient rules approximately making the most of the VS.NET IDE and the way you could tie your facts to the myriad of robust controls together with the multi-faceted facts Grid. ultimately, it is going via making a visitor ebook software for the internet so that you can see how everything healthy together.

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Arrays can be either single- or multidimensional. Both rectangular and jagged arrays are supported. A jagged array has elements that contain arrays that don't necessarily have the same length. A rectangular array is multidimensional, and all of its sub arrays have the same length. With arrays, all of the elements must be of the same base type. In C#, the lower index of an array starts with 0, and the upper index is number of items minus l. You can initialize array items either during the creation of an array or later by referencing array items, as shown here: int[) nums = new int[s); int[o) = 1; int[l) = 2; int[2] = 3; int[3) = 4; int[4) 5; or here: int[) nums = new int {1, 2, 3, 4, 5, }; Listing 1-15 shows an example of single-dimensional arrays.

22 Introduction to C# Listing 1-13. ToString()); } public void TestMethod() { Console. Wri teLine ("Test Method"); } public int TestMethod2(int a, int b) { return a + b; } } 23 Chapter 1 Delegate Types Delegate types are mainly used with the class events. A delegate type encapsulates a method with a certain signature, called a callable entity. Delegates are the typesafe and secure versions of function pointers (callback functionality). Delegate instances are not aware of the methods they encapsulate; they're aware only if the methods are compatible in that they have the same parameter structure and return type.

ToString())j } } The process of converting from a reference type to a value type is called unboxing. Listing 1-20 shows an example of unboxing. 30 Introduction to C# Listing 1-20. ToString()); } } Attributes Attributes enable the programmer to give certain declarative information to the elements in their class. These elements include the class itself, the methods, the fields, and the properties. NET platform, or you can create your own. Attributes are specified in square brackets C[ ••• J) before the class element upon which they're implemented.

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