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C# -TYPE CONVERSIONS

Type conversion is basically type casting or converting one type of data to another type. In C#, type casting has two forms:

Implicit type conversion -

These conversions are performed by C# in a type-safe manner. Examples 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:

{

    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:

5673

C# Type Conversion Methods

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

S.N

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.