whan can do write a operator same "or", but just any of two operant must be true ?

Answer 1

Like what Harry said, in C# operator, or is represented by ||
When to use 'or'?
In a real world context, for example you only want the admin/moderators to execute the command/system/button, you can use the 'or' symbol instead of rewriting the same code twice for admin and moderator seperately.

For example :

private void //Command or button
{
.addcheck(User.Admin || User.Moderator)
//^^^ of course it wont work, its and example
//That checks the user role, if the user role does not meet any of the requirement, it will stop process, etc

.Do(async...{}) // or whatever that executes some command
}

And yes, only 1 of the requirements need to be met in order for the whole thing to be true.

Answer 2

No, in C# there is no function to provide a 'return false if both operators are true in 'or' '
But there is a way to code it in a more complex manner.

int x = 1;
int y = 2;
if ( !(x == 1) || !(y == 2) )
{
Console.WriteLine("1");
}
else
{
Console.WriteLine("2");
}

But this one I made has its flaws, if x is not 1 and y is not 2 , it will still return true. But I hope that someone will post a better verison of it or you can find the solution for it too.

Answer 3

In c# the or operator is given by ||.

For example:
int x = 4;
int y = 10;
if(x == 4 || y == 5)
{
//some code
}

The code will execute since one condition is true.

Answer 4

thanks friend but i think i dont recieve my mean. in example:

if (a == true || b == false ) \\return true

if (a == false || b == true ) \\return true

but .. if both operant are true (a == true || b == true) \\return false

i seen this operator in some other language that its name was "xor" . but i don't know c# have this shortcut operator or no ?

Answer 5

a!=b