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The document provides an overview of input/output streams and serialization in C#. It discusses how streams are used for reading and writing files and describes classes like FileStream, StreamWriter, and StreamReader that provide methods for working with files. It also explains serialization and deserialization in C# - the processes of converting an object into a byte stream and back, and describes how to apply the SerializableAttribute to allow objects to be serialized.
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Cn10Sireesh K This document contains advice from Chanakya Niti Sastra on various topics such as wealth, learning, speech, actions, sense gratification, fate, enemies, poverty, preserving Brahmins, one's homeland, parting with loved ones, intelligence, and praising Lord Vishnu. The document encourages carefully considering one's actions, acquiring learning over sense pleasures, preserving one's kinsmen and Brahmins, and praising Lord Vishnu for nourishment and maintenance. It provides various proverbs and anecdotes expanding on these ideas.
chanakya neeti
chanakya neetiSireesh K The document contains advice from Chanakya Niti Sastra on various topics:
1) It advises abandoning sense gratification and instead drinking the nectar of virtues like forbearance, conduct, mercy, cleanliness and truth to be free from the cycle of birth and death.
2) It warns that those who speak of others' secret faults destroy themselves like snakes who enter anthills.
3) It provides various pieces of advice on different topics like the qualities of different things, behaviors to adopt or avoid, and how to spend one's time in a beneficial way.
chanakya neeti
chanakya neetiSireesh K The document contains advice from ancient Indian literature on ethics and politics. It provides maxims on various topics like wealth, friends, countries to live in, servants, relatives, wives, and marriage. Some of the advice includes saving money for hard times, testing people's characters in different situations, not trusting certain things like weapons or members of a royal family, and marrying a virtuous woman even if she's from a low caste. The document encourages learning from all people and extracting wisdom from many sources.
What is mvc
What is mvcSireesh K The document discusses various questions related to Model-View-Controller (MVC) architecture, including how MVC works, its benefits, differences between versions of MVC, routing, views, validation, authentication, AJAX implementation, and more. It also covers Entity Framework topics such as code first approach, POCO classes, relationships, concurrency handling, and comparisons to LINQ to SQL. The document aims to explain core concepts and implementation of MVC and Entity Framework.
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31cSireesh K This document discusses using GDI (Graphical Design Interface) in C# to add graphics capabilities. It describes three main GDI methods - DrawString() to display text, DrawImage() to display images, and DrawEllipse() to draw ellipses. Examples are provided for each method using a Timer control and Graphics object to incrementally draw the graphics on a form at runtime. More C# and Angular JS tutorials can be found on the provided blog website.
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45cSireesh K This document provides a tutorial on developing Windows services in C#. It discusses what a Windows service is, how to create a Windows service project in Visual Studio, add controls like FilesystemWatcher and Timer, install and start the service, and includes an example of using these components to restrict text files from being created in a specific directory. The tutorial is intended for beginners and provides step-by-step instructions and explanations of key concepts for creating a basic Windows service application in C#.
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44cSireesh K This document discusses how to create Windows applications in C# using Visual Studio. It describes several controls that are available for building the user interface, including common controls, container controls, menu controls, and data bound controls. It provides examples of using context menus and notifyicon controls with other UI elements like text boxes. The context menu can be assigned to multiple controls and used to trigger actions like changing colors or cutting/copying text.
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43cSireesh K The document discusses exception handling in C#. It describes how exceptions provide a way to transfer control when errors occur. It explains the try, catch, finally, and throw keywords used in exception handling and provides examples of handling different types of exceptions using these keywords. It also discusses user-defined exceptions and how to create custom exception classes by inheriting from the Exception class.
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42cSireesh K This document discusses events in C# programming. Events allow applications to respond to user actions or system notifications. Events use delegates to associate event handlers with the class that raises the event. A publisher class declares and raises an event, while a subscriber class provides an event handler method that is invoked by the publisher's delegate. To declare an event, a delegate type is first defined, then the event itself is declared using the event keyword and referencing the delegate type.
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41cSireesh K The document discusses different types of errors in programming - syntax errors, runtime errors (exceptions), and logical errors. It explains that exceptions can be handled using try, catch, and finally blocks. The try block contains code that might throw exceptions, catch blocks handle specific exceptions, and finally blocks contain cleanup code that always runs. Key aspects of exception handling include using specialized catch blocks before general ones and obtaining exception details to understand errors.
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40cSireesh K This document provides an overview of XML integration in C# and examples of using the writexml() and Readxml() methods. It explains that XML is an extensible markup language that supports predefined and user-defined tags. It then gives an example of creating a student.xml file and shows how writexml() can be used to convert a dataset into XML format. Finally, it demonstrates how Readxml() can retrieve data from an XML file and store it in a dataset.
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39cSireesh K LINQ (Language Integrated Query) allows querying data in .NET applications. LINQ queries use anonymous data types to filter and format data from arrays, databases, XML, and objects. Examples demonstrate LINQ queries to retrieve array elements greater than 5, even numbers from an array, and sorting a string array in ascending order. The document provides source code examples of LINQ queries on different data types.
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38cSireesh K The document discusses stored procedures in C# and ADO.NET. It defines stored procedures as pre-compiled SQL statements that improve performance by avoiding repeated parsing and optimization. It provides examples of creating stored procedures to insert, update, and delete student records from a database. It also shows how to call stored procedures from C# code using ADO.NET, including how to define parameters and return values.
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37cSireesh K This document provides an overview of ADO.net and how it can be used to connect front-end applications like C# to back-end databases. It discusses the key classes and components in ADO.net like Connection, Command, DataAdapter and DataSet. It provides examples of performing basic CRUD operations on databases using both connection-oriented and disconnected models. It also demonstrates how to retrieve and display data in controls like DataGridView and bind related tables using DataRelations in a DataSet.
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35cSireesh K This document summarizes remoting in C#, which allows for distributed communication between applications. Remoting uses interfaces to distribute only method declarations across a network. A remoting application requires three components: a class library with the remoting interface, a server application that implements the interface, and a client application that calls methods on the server. The server registers its remoting object, and the client uses channels to connect to and call methods on the remote object hosted by the server.
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34cSireesh K This document discusses multiple document interface (MDI) forms in C#. MDI forms allow multiple child forms to be opened within a single parent form, sharing the same memory space. The IsMdiContainer property determines if a form is the parent or child, with a value of true indicating the parent role. An example is provided of creating menu options to open different child forms into the parent form container, setting each child's MdiParent property to the parent form on launch. Layout options like tile, cascade are also demonstrated to arrange multiple open child windows within the parent form.
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33cSireesh K This document discusses generics in C# programming. Generics allow classes and methods to work with any data type by delaying type specification until the code is used. This maximizes code reuse, type safety, and performance. The .NET framework includes many generic collection classes in the System.Collections.Generic namespace that can be used instead of non-generic collections. Developers can also create their own generic interfaces, classes, methods, and other elements.
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30cSireesh K This document discusses delegates in C#, which are similar to function pointers in C/C++. Delegates allow methods to be passed as arguments and stored for later invocation. The document explains that delegates store references to methods, can reference static or instance methods, and are type-safe. It also covers declaring delegates, instantiating delegates by storing method references, and using single-cast versus multi-cast delegates which can store references to multiple methods and invoke them in sequence.
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29cSireesh K This document discusses various types of polymorphism in C#, including inheritance, base and derived classes, single inheritance, multi-level inheritance, hierarchical inheritance, and aggregation. It provides examples of each type of inheritance using C# code. Single inheritance allows a derived class to inherit properties and methods from one base class. Multi-level inheritance involves inheriting from another inherited class. Hierarchical inheritance involves inheriting from a single base class but having multiple derived classes. Aggregation represents a "has-a" relationship between classes.
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27cSireesh K This document discusses encapsulation in object-oriented programming. Encapsulation involves enclosing data and functions together within a class and restricting access to that data. The document defines encapsulation and explains how it is used to hide implementation details and bind data to a single unit. It also discusses different access specifiers like public, private, protected, internal, and protected internal and how they control access to variables and methods within and outside of classes.
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