What's the best way to achieve this, or is this a bad idea?
14  6138 
Hi,
<ph********@gma il.comwrote in message
news:11******** **************@ h3g2000cwc.goog legroups.com...
| What's the best way to achieve this, or is this a bad idea?
Derive from CollectionBase and do not add a Add method. Super easy to
implement.
I do not think it's a bad idea. if you have the need for it .
--
Ignacio Machin
machin AT laceupsolutions com
In 2.0 there is ReadOnlyCollect ion<Twhich does this for you.
Marc
Maybe better yet, derive from ReadOnlyCollect ionBase and you are quite done.
"Ignacio Machin ( .NET/ C# MVP )" <machin TA laceupsolutions .comha scritto
nel messaggio news:Ol******** ********@TK2MSF TNGP06.phx.gbl. ..
Hi,
<ph********@gma il.comwrote in message
news:11******** **************@ h3g2000cwc.goog legroups.com...
| What's the best way to achieve this, or is this a bad idea?
Derive from CollectionBase and do not add a Add method. Super easy to
implement.
I do not think it's a bad idea. if you have the need for it .
--
Ignacio Machin
machin AT laceupsolutions com
Hi,
"Laura T." <LT@NOWHERE.COM wrote in message
news:u7******** ******@TK2MSFTN GP04.phx.gbl...
| Maybe better yet, derive from ReadOnlyCollect ionBase and you are quite
done.
Yes, you are correct ReadOnlyCollect ionBase is the way to go, Note though
that the only difference is the absence of a Clear method from the readonl
version.
--
Ignacio Machin
machin AT laceupsolutions com
Doesn't the CollectionBase implement the IList interface so it has "extra"
methods like Remove/RemoveAT/Insert, among the other things (so to make it
really read only, you should override those too).
The ReadOnlyCollect ionBase implements only ICollection and IEnumerable so it
does not have them.
"Ignacio Machin ( .NET/ C# MVP )" <machin TA laceupsolutions .comha scritto
nel messaggio news:e0******** *****@TK2MSFTNG P05.phx.gbl...
Hi,
"Laura T." <LT@NOWHERE.COM wrote in message
news:u7******** ******@TK2MSFTN GP04.phx.gbl...
| Maybe better yet, derive from ReadOnlyCollect ionBase and you are quite
done.
Yes, you are correct ReadOnlyCollect ionBase is the way to go, Note though
that the only difference is the absence of a Clear method from the readonl
version.
--
Ignacio Machin
machin AT laceupsolutions com
"Peter Bromberg [C# MVP]" <pb*******@yaho o.yabbadabbadoo .coma écrit dans
le message de news: 81************* *************** **...icrosof t.com...
| By Jove! Now that there is truly immutable!
....until you cast it to IList, IList<T>, ICollection or ICollection<T>, all
of which are supported by the class. :-)
Joanna
--
Joanna Carter [TeamB]
Consultant Software Engineer
Supported yes, but also correctly implemented to be really
readonlycollect ion, for example:
void IList<T>.Insert (int index, T value) {
ThrowHelper.Thr owNotSupportedE xception(Except ionResource.Not Supported_ReadO nlyCollection);
}
void ICollection<T>. Add(T value) {
ThrowHelper.Thr owNotSupportedE xception(Except ionResource.Not Supported_ReadO nlyCollection);
}
So it really remains "immutable" .
"Joanna Carter [TeamB]" <jo****@not.for .spamha scritto nel messaggio
news:O1******** ******@TK2MSFTN GP03.phx.gbl...
"Peter Bromberg [C# MVP]" <pb*******@yaho o.yabbadabbadoo .coma écrit dans
le message de news: 81************* *************** **...icrosof t.com...
| By Jove! Now that there is truly immutable!
...until you cast it to IList, IList<T>, ICollection or ICollection<T>,
all
of which are supported by the class. :-)
Joanna
--
Joanna Carter [TeamB]
Consultant Software Engineer
Did their homework after all.
Nice.
Peter
--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net
"Laura T." wrote:
Supported yes, but also correctly implemented to be really
readonlycollect ion, for example:
void IList<T>.Insert (int index, T value) {
ThrowHelper.Thr owNotSupportedE xception(Except ionResource.Not Supported_ReadO nlyCollection);
}
void ICollection<T>. Add(T value) {
ThrowHelper.Thr owNotSupportedE xception(Except ionResource.Not Supported_ReadO nlyCollection);
}
So it really remains "immutable" .
"Joanna Carter [TeamB]" <jo****@not.for .spamha scritto nel messaggio
news:O1******** ******@TK2MSFTN GP03.phx.gbl...
"Peter Bromberg [C# MVP]" <pb*******@yaho o.yabbadabbadoo .coma écrit dans
le message de news: 81************* *************** **...icrosof t.com...
| By Jove! Now that there is truly immutable!
...until you cast it to IList, IList<T>, ICollection or ICollection<T>,
all
of which are supported by the class. :-)
Joanna
--
Joanna Carter [TeamB]
Consultant Software Engineer
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