Hi !
I got a user interface named "IProduit"
Then, I declare a new instance of this interface : Produit = New IProduit
Now, I'd like to have a "clone" of the object Produit. I don't want these
two objects ( Produit and Produit2 for example ) to share the same pointer,
but I want them to have the same data ( I have a dataset into the
interface ).
How can I proceed ?
Thank You !
Jeff
15  1216 
Hi Jeff, (J-F?)
You can't instantiate an Interface so this should be illegal.
Produit = New IProduit
So I have to wonder what IProduit <is>.
Assuming that it is actually a class, (but please correct me), you have a choice of doing a shallow clone or a deep
clone. And now I'm into deja-vu.
This topic was extensively covered recently.
Topic: How do I implement ICloneable?, dated 4th Nov
Regards,
Fergus
* "Jean-Francois Cantin" <je*****************@expertisa.com> scripsit: I got a user interface named "IProduit"
Then, I declare a new instance of this interface : Produit = New IProduit
You cannot instantiate an interface.
Now, I'd like to have a "clone" of the object Produit. I don't want these
two objects ( Produit and Produit2 for example ) to share the same pointer,
but I want them to have the same data ( I have a dataset into the
interface ).
Implement 'ICloneable'.
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
<http://www.plig.net/nnq/nquote.html>
He's asking <how>. 'Implement ICloneable' says nothing.
Hi !
Btw, yeah my name is J-F ;-)
Ok, I made an error when I wrote my email.
Let's me explain with more details.
I got an interface ( IProduit ). This interface contains properties and a
dataset <this dataset contains some datatables>
These datatables are filled when I call the New method on the class Produit.
I'd like to create a new "IProduit", but I don't want this new object to
fill its datatables. I wanna make a real copy of the object ( the first
IProduit ), with datas. By this way, I should be able to avoid the long
"data retreiving process".
J-F ( ;-) )
"Fergus Cooney" <fi****@post.com> a écrit dans le message de
news:u%****************@TK2MSFTNGP09.phx.gbl... Hi Jeff, (J-F?)
You can't instantiate an Interface so this should be illegal.
Produit = New IProduit
So I have to wonder what IProduit <is>.
Assuming that it is actually a class, (but please correct me), you
have a choice of doing a shallow clone or a deep clone. And now I'm into deja-vu.
This topic was extensively covered recently.
Topic: How do I implement ICloneable?, dated 4th Nov
Regards,
Fergus
* "Fergus Cooney" <fi****@post.com> scripsit: He's asking <how>. 'Implement ICloneable' says nothing.
It says nothing to _you_.
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
<http://www.plig.net/nnq/nquote.html>
I know how to implement ICloneable.
The statement 'Implement ICloneable' does not tell anybody how to do so.
Like when I say to you 'look at your own behaviour' - you don't know what it means.
Hi J-F, ;-)
Did you check out the topic on Clone that I gave you. It says a lot of stuff that I don't want to repeat - we only
wrote it a day or so ago. Also check out your Help - it will hopefully say the same in a different way, and give you a
rounder picture. Once you've had a look at that topic, come back and tell us your ideas.
You would be wanting a deep Clone. DataSets can clone themselves but they can't clone their data. You'd have to do that
bit by hand.
I'm still confused by the Produit versus IProduit, but that may not matter.
Regards,
Fergus
* "Fergus Cooney" <fi****@post.com> scripsit: I know how to implement ICloneable.
The statement 'Implement ICloneable' does not tell anybody how to do so.
It doesn't tell _how_ to do, but it tells _what_ to do.
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
<http://www.plig.net/nnq/nquote.html>
|| It doesn't tell _how_ to do, but it tells _what_ to do.
It doesn't even do that!!
Implementing ICloneable is not necessary for Cloning.
Given that the original question is asking how to clone, you are answering with the question!
How do I tell Herfried he's got it wrong?
Easy - you just tell Herfried that he got it wrong.
It doesn't say anything new. At all. In both cases of 'it'.
* "Fergus Cooney" <fi****@post.com> scripsit: || It doesn't tell _how_ to do, but it tells _what_ to do.
It doesn't even do that!!
Implementing ICloneable is not necessary for Cloning.
Given that the original question is asking how to clone, you are answering with the question!
[ ] You understood it.
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
<http://www.plig.net/nnq/nquote.html>
Herfried and Fergus,
May I have the last message in this thread,
I don't need an answer
:-))
Cor
"Herfried K. Wagner [MVP]" <hi***************@gmx.at> wrote... * "Fergus Cooney" <fi****@post.com> scripsit: He's asking <how>. 'Implement ICloneable' says nothing.
It says nothing to _you_.
Like most of your replies it says nothing to most people. But don't let the
facts get in the way of a good story.
But I have a solution...
"Implement IUnderstandable"
* "Tom Leylan" <ge*@iamtiredofspam.com> scripsit: He's asking <how>. 'Implement ICloneable' says nothing.
It says nothing to _you_.
Like most of your replies it says nothing to most people.
Good that _you_ and _Fergus_ know that.
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
<http://www.plig.net/nnq/nquote.html>
I think you might have misunderstood...
We all recognize your need to be the policeman in the group.
"Herfried K. Wagner [MVP]" <hi***************@gmx.at> wrote... * "Tom Leylan" <ge*@iamtiredofspam.com> scripsit: He's asking <how>. 'Implement ICloneable' says nothing.
It says nothing to _you_.
Like most of your replies it says nothing to most people.
Good that _you_ and _Fergus_ know that.
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
<http://www.plig.net/nnq/nquote.html>
Fergus, You'd have to do that bit by hand.
If you use DataSet.Copy, Datasets can clone their data & structure! (no need
to do it by hand).
Where as if you use DataSet.Clone, Datasets can only clone their structure.
Hope this helps
Jay
"Fergus Cooney" <fi****@post.com> wrote in message
news:uS**************@TK2MSFTNGP11.phx.gbl... Hi J-F, ;-)
Did you check out the topic on Clone that I gave you. It says a lot of
stuff that I don't want to repeat - we only wrote it a day or so ago. Also check out your Help - it will hopefully say
the same in a different way, and give you a rounder picture. Once you've had a look at that topic, come back and tell
us your ideas.
You would be wanting a deep Clone. DataSets can clone themselves but
they can't clone their data. You'd have to do that bit by hand.
I'm still confused by the Produit versus IProduit, but that may not
matter.
Regards,
Fergus
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