C# - Type Conversion

Content
C# - Introduction
C# - Environment
C# - Basic Syntax
C# - Data Types
C# - Type Conversion
C# - Variables
C# - Constants and Literals
C# - Operators
C# - Decision Making
C# - Loops
C# - Encapsulation
C# - Methods
C# - Nullables
C# - Arrays
C# - Strings
C# - Structures
C# - Enums
C# - Classes
C# - Inheritance
C# - Polymorphism
C# - Operator Overloading
C# - Interfaces
C# - Namespaces
C# - Preprocessor Directives
C# - Regular Expressions
C# - Exception Handling
C# - File I/O

Type conversion is converting one type of data to another type. It is also known as Type Casting. In C#, type casting has two forms:

Implicit type conversion - These conversions are performed by C# in a type-safe manner. For example, are conversions from smaller to larger integral types and conversions from derived classes to base classes.
Explicit type conversion - These conversions are done explicitly by users using the pre-defined functions. Explicit conversions require a cast operator.

The following example shows an explicit type conversion:

using System;
namespace TypeConversionApplication 
{
   class ExplicitConversion 
   {
      static void Main(string[] args) 
      {
         double d = 5673.74; 
         int i;
         
         // cast double to int.
         i = (int)d;
         Console.WriteLine(i);
         Console.ReadKey();
      }
   }
}

When the above code is compiled and executed, it produces the following result:

C# Type Conversion Methods

C# provides the following built-in type conversion methods:

Sr.No	Methods & Description
1	ToBoolean Converts a type to a Boolean value, where possible.
2	ToByte Converts a type to a byte.
3	ToChar Converts a type to a single Unicode character, where possible.
4	ToDateTime Converts a type (integer or string type) to date-time structures.
5	ToDecimal Converts a floating point or integer type to a decimal type.
6	ToDouble Converts a type to a double type.
7	ToInt16 Converts a type to a 16-bit integer.
8	ToInt32 Converts a type to a 32-bit integer.
9	ToInt64 Converts a type to a 64-bit integer.
10	ToSbyte Converts a type to a signed byte type.
11	ToSingle Converts a type to a small floating point number.
12	ToString Converts a type to a string.
13	ToType Converts a type to a specified type.
14	ToUInt16 Converts a type to an unsigned int type.
15	ToUInt32 Converts a type to an unsigned long type.
16	ToUInt64 Converts a type to an unsigned big integer.