IIF to the rescue...

[Sander Rossel]

It is a function on the Order class, but it still takes a parameter (it just gets mOrderNumber given to it every time). VB does not have a ternary operator. I'm saying the function could look like this: Return OrderNumber = 0 There is no need for an IIF anywhere in the code. As I said, it's not truly horrible, but it's an 'interesting' way to return if OrderNumber = 0 :)

It's an OO world.

public class SanderRossel : Lazy<Person>
{
public void DoWork()
{
throw new NotSupportedException();
}
}

[Bernhard Hiller]

Ah, thanks. That explains it. It really deserves this place.

[Sander Rossel]

Don't worry, we all have our off-days :laugh:

It's an OO world.

public class SanderRossel : Lazy<Person>
{
public void DoWork()
{
throw new NotSupportedException();
}
}

[Nagy Vilmos]

Sander Rossel wrote:

VB does not have a ternary operator.

It does, it's the IIf function/method/whateva

[Sander Rossel]

Is that an operator or a function? ;) I wouldn't know the difference, but I believe there is one. Something like an operator is a function, but a function is not an operator.

It's an OO world.

public class SanderRossel : Lazy<Person>
{
public void DoWork()
{
throw new NotSupportedException();
}
}

[Richard Deeming]

Not quite. IIf is a function[^], and as such it evaluates both arguments before checking the condition. So while this works in C#:

someObject == null ? "Null" : someObject.ToString()

the equivalent using IIf will throw a NullReferenceException:

IIf(someObject Is Nothing, "Null", someObject.ToString()) ' Boom!

The real ternary operator for VB.NET is the If operator[^], which was added in .NET 3.5:

If(someObject Is Nothing, "Null", someObject.ToString()) ' No Boom.

---

"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

[Bernhard Hiller]

I guess it was an unhandled ConfusedByVBException...

[Sander Rossel]

:laugh:

It's an OO world.

public class SanderRossel : Lazy<Person>
{
public void DoWork()
{
throw new NotSupportedException();
}
}

[PaulLinton]

I don't know VB and was just wondering ... if

Return OrderNumber = 0

does a comparison and returns the result then how would you set the value of OrderNumber to 0 and then return OrderNumber? In C#, the first is

return OrderNumber == 0;

and the second is

return OrderNumber = 0;

[Sander Rossel]

PaulLinton wrote:

I don't know VB

Obviously :) VB doesn't know the == operator. Instead = can be either assignment or comparison, dependent on context. In this case it's a comparison, but no assignment. So

Return OrderNumber = 0

Would be

return OrderNumber == 0;

in C#. Your second C# example isn't possible in VB (as far as I know, but I didn't know it was possible in C# either :) )

It's an OO world.

public class SanderRossel : Lazy<Person>
{
public void DoWork()
{
throw new NotSupportedException();
}
}

[Jorgen Andersson]

The second one would be:

Return (Ordernumber = 0)

<edit>Or like this:

Return 0 = Ordernumber

</edit>

Wrong is evil and must be defeated. - Jeff Ello[^]