How to use "void" is C Sharp?

void used in a method to indicate that the method is not returning any value.

Example
' a method that return values
int Bigger(int x, int y)
{
if (x > y)
return x;
else
return y;
}

' a method that does not return values
void myMethod(int x, int y)
{
if (x > y)
return; // execution of this mehtod ends here
else
' your code here
}