what does "|=" mean in c#

hi,

it is The OR assignment operator.

x |= y is equivalent to x = x | y
please refer

http://msdn.microsoft.com/en-us/library/h5f1zzaw%28v=vs.80%29.aspx
hope this will help you.

It's been there since version 1.0 of C# as C/C++ also have it.

It's most commonly used when combining enum values (as here) or in general bit shifting code.

kevin.downey13y ago

Thanks very much, I was suspicious. When did it become available in C#

Vulpes13y ago

In the same way that:

a += b;

is shorthand for:

a = a + b;

then:

a |= b;

is shorthand for:

a = a | b;

'|' is of course the bitwise OR operator.

Check out:

http://msdn.microsoft.com/en-gb/library/kxszd0kx(v=vs.71).aspx