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| class A
{
public A(B b, C c)
{
b.SomethingHappened += b_SomethingHappened;
c.SomethingHappened += c_SomethingHappened;
}
void b_SomethingHappened(object sender, EventArgs e)
{
Console.WriteLine("Called back from B.");
}
void c_SomethingHappened(object sender, EventArgs e)
{
Console.WriteLine("Called back from C.");
}
}
class B
{
public event EventHandler SomethingHappened = delegate { };
public void DoSomething()
{
SomethingHappened(this, EventArgs.Empty);
}
}
class C
{
public event EventHandler SomethingHappened = delegate { };
public void DoSomething()
{
SomethingHappened(this, EventArgs.Empty);
}
}
class Program
{
static void Main(string[] args)
{
B b = new B();
C c = new C();
A a = new A(b, c);
b.DoSomething();
c.DoSomething();
}
} |
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