Trying to understand how to do upcasting or explict/implict type conversions. For example
public class p{}
public class p1{}
class example{
public void tt(p i){
}
public void tt(p1 ii){
}
public void onEvent( object ev){
tt(ev);
}
}
The issue is tt calling any of the functions, the problem is ev is one of the type, the only way is to use if statements to check each type ie if (ev is p) else etc
upcasting
WXS123
To do this, you do indeed have to "upcast" your object to the appropriate type. For example:
public void onEvent( object ev)
{
if (ev is p)
tt(ev as p);
else if (ev is p1)
tt(ev as p1);
else
throw new ApplicationException("bad type");
}
This is now type safe, since no matter what type of object ev is, the code is predictable and does not result in some wacky behavior (which you get into in C or C++ in these sorts of situations).
Hope that helps,
Erik