C# - Data Type Conversion

Data Type Conversion

In our previous tutorial we have seen various types of data and how to use them. In this session we are going to look into how to convert these data type from one to another.

Implicit Conversions

In Implicit conversion can be made when the value to be stored can fit into the variable without being truncated or rounded off.

We can take example of int and long, float and double.

we can declare a variable int and assign it to a long type which is an implicit conversion as the scope of long is bigger than that of int so there is no worry of loosing data.

Explicit Conversions

However, if a conversion cannot be made without a risk of losing information, the compiler requires that you perform an explicit conversion, which is called a cast. A cast is a way of explicitly informing the compiler that you intend to make the conversion and that you are aware that data loss might occur. To perform a cast, specify the type that you are casting to in parentheses in front of the value or variable to be converted.

We can take the below example to convert data types from int to long and float to double at the same time we can see the example of long to int and double to float. It shows how both type of conversions work.

Conversion methods in C#

The following table lists some of the methods from the Convert class that you can use.

How to convert a String to a Number

<<PreviousPage NextPage>>

Comments

MVC - Introduction

What is MVC? Model-View-Controller (MVC) has been an important architectural pattern in computer science for many years.It was originally named Thing-Model-View-Editor in 1979, it was later simplifi ed to Model-View-Controller.Although originally developed for desktop computing, model–view–controller has been widely adopted as an architecture for World Wide Web applications in major programming languages. Difference between MVC, MVP and MVVM MVC The input is directed at the Controller first, not the view. That input might be coming from a user interacting with a page, but it could also be from simply entering a specific url into a browser. In either case, its a Controller that is interfaced with to kick off some functionality. There is a many-to-one relationship between the Controller and the View. That’s because a single controller may select different views to be rendered based on the operation being executed. Note the one way arrow from Controller to View. This ...

C# - DataTypes

<<PreviousPage NextPage>> Data Types Value Type Variable contains value directly Derived implicitly from the System.ValueType Cannot derive a new type from a value type. example of value type - int, float, enum. Builtin data types apart from the above mentioned built in data types we need to discuss two special type of data types - Struct and Enum Struct - A struct type is a value type that is typically used to encapsulate small groups of related variables In the below example we are using a struct variable Book which has one decimal value price an...

C - Overview

What is C? It is a programming language developed at AT & T’s Bell Laboratories of USA in 1972. It is designed and written by Dennis Ritchie. C is a general-purpose language which has been closely associated with the UNIX operating system for which it was developed - since the system and most of the programs that run it are written in C. The evolution of C took place in the following way: Why should we use C? 1.C language is a building block for many other currently known languages. 2.There are only 32 keywords in ANSI C and its strength lies in its built-in functions. Several standard functions are available which can be used for developing programs. 3.C language is a structured programming language. This makes user to think of a problem in terms of function modules or blocks. Collection of these modules makes a complete program. This modular structure makes program debugging, testing and maintenance easier. What is ANSI C? 1.ANSI C, ISO...

Guide2Coding

Search This Blog