implicit data conversion in c#

int num =  2147483647;
long bigNum = num;

or

class Alpha
{
int data1;
int data2;

public static implicit Alpha(int n)
     {
     Alpha a=new Alpha();
     a.data1=n;
     return a;       //here the value of n fully becomes  part of the destination. ie. no data loss.
     }


public static explicit int(Alpha a)
     {
     return a.data1;  // here only data1 is returned. and data2 is   lost because of the conversion

     }

}

You can access the data as follows.


Alpha a = 25; //implicit conversion - no casting

//int n = a; // ERROR - without casting

int n = (int) a; //explicit conversion - with casting

Hi,

it means if you have two jug of water, one with 5 liter and another with 2 liter then you can pour 2 liter jug liquid into 5 liter jug.

Similarly Please look into below example from MSDN

Digit d = new Digit(3);
// implicit (no cast) conversion from Digit to byte
byte b = d;

In above example you can see, we can copy the value of Digit d into byte b. without explicitly casting. this is what the meaning of first phase.

Thanks.

It means if the source type can be changed to the destination type without loss of data, then it can be done implicitly.

And example would be conversion from an int to a double:

int i = 6;
double d = i;

This is an implicit conversion because no info is lost.

double d = 6.0;
int i = d;

Will not, because any fraction part would have to be discarded.