Hi all,
I have one class including one collection. I use propertygrid to display and
edit its properties.
I'm trying to use reflection to change the status of one element to be
readonly, for example the first element in this collection.The result is
that all of elements changed. I guess the ReadOnly attribute is for class(or
type), not for instance.
How could i only change the status of one element of one collection?
Thanks in advance.
Alan
2  2914 
I don't think that is a good idea.
You should manage the state of the elements at your get/set modifiers.
Like - throwing a custom exception when it's the first element in the
collection.
Cheers,
Branimir
--
Branimir Giurov
MCSD.NET, MCDBA
"Alan" <li***@channel. com> wrote in message
news:e3******** ******@TK2MSFTN GP09.phx.gbl... Hi all,
I have one class including one collection. I use propertygrid to display
and
edit its properties.
I'm trying to use reflection to change the status of one element to be
readonly, for example the first element in this collection.The result is
that all of elements changed. I guess the ReadOnly attribute is for
class(or
type), not for instance.
How could i only change the status of one element of one collection?
Thanks in advance.
Alan
>I have one class including one collection. I use propertygrid to display and edit its properties.
I'm trying to use reflection to change the status of one element to be
readonly, for example the first element in this collection.The result is
that all of elements changed. I guess the ReadOnly attribute is for class(or
type), not for instance.
How could i only change the status of one element of one collection?
In that case, you'd have to have a private boolean flag in the class,
which would indicate whether or not your special property is
read-only, or not.
In the Set accessor for that property, you'd need to check for that
flag, and if it's true, you'd simply discard / disregard the value
being set.
I don't think there's another way to do this, since as you say, the
property's status is otherwise a function of the CLASS, not the
instance....
Marc
=============== =============== =============== =============== ====
Marc Scheuner May The Source Be With You!
Bern, Switzerland m.scheuner(at)i nova.ch This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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