Timeline for downcast and upcast
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| S Feb 7, 2018 at 17:39 | history | suggested | v.slobodzian | CC BY-SA 3.0 |
slightly changed the formatting, highlighting the syntax
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| Feb 7, 2018 at 16:08 | review | Suggested edits | |||
| S Feb 7, 2018 at 17:39 | |||||
| May 11, 2013 at 4:35 | comment | added | Antony | Your first statement ("...casting [an instance of Manager class] into an "employee" object [..] means you cannot access anything manager specific") is not completely accurate. In OP's example, if Employee has a virtual member that is overridden in Manager, the CLR will call the Manager implementation, notwithstanding the cast. From the MSDN article on polymorphism in C#: "When a derived class overrides a virtual member, that member is called even when an instance of that class is being accessed as an instance of the base class." The example provided by MSDN is almost identical. | |
| S Feb 13, 2013 at 21:00 | history | edited | ib. | CC BY-SA 3.0 |
Fixed up a mis-named variable
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| S Feb 13, 2013 at 21:00 | history | suggested | Paul Prewett | CC BY-SA 3.0 |
Fixed up a mis-named variable
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| Feb 13, 2013 at 20:49 | review | Suggested edits | |||
| Feb 13, 2013 at 21:00 | |||||
| Oct 6, 2009 at 8:25 | vote | accept | user184805 | ||
| Oct 6, 2009 at 8:20 | comment | added | RCIX | I stand corrected on the first point, and i changed the second half of my answer to show both ways of doing it. | |
| Oct 6, 2009 at 8:18 | history | edited | RCIX | CC BY-SA 2.5 |
added 162 characters in body; added 2 characters in body
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| Oct 6, 2009 at 8:17 | comment | added | Konrad Rudolph |
Avoid redefining well-established terms: “boxing”, in the context of OOP and C#, means something rather different (= wrapping a value type object into a reference). Also, your example could (and should) use the as operator instead of is, followed by a cast.
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| Oct 6, 2009 at 8:11 | comment | added | user184805 | I need example to know what is Downcasting ? | |
| Oct 6, 2009 at 8:09 | history | answered | RCIX | CC BY-SA 2.5 |