"Jordi Rico" <jordir***@gmail.com> wrote in message
news:8bcece01-9a6e-4b28-b799-733e314a11d4@r36g2000prf.googlegroups.com...
> Hi,
>
> well I have a question about something I thought would be trivial but
> it's driving me nuts.
> In my app I have a list of objects (let's say users) that have been
> loaded with a datacontext.
> I can add users, list them, etc.
> But if I want to edit an user, my problems begin. I pass an user
> object to a form, with databound controls to its properties (name,
> surname, password...).
> Because they are bounded, when I make any change to any control, the
> underlying object results changed at the time also.
> It has two effects:
> a) A list of users shown in other form (from which I select the user
> to edit) shows every change I make in edit form.
> b) I am unable to cancel editing, because although changes are not
> saved to database, they are in memory.
>
> Any help?
>
> Thanks for any help

On 17 dic, 11:06, "Manu" <manu.is***@gmail.com> wrote:
> If you are using LINQ to SQL (which you probably are) and Visual Studio LINQ
> To SQL Autogenerated Classes this is not possible out of the box.
> To Support this type of functionality your object needs to implement
> IEditable Interface. which is not implementd in the above case.
>
> "Jordi Rico" <jordir***@gmail.com> wrote in message
>
> news:8bcece01-9a6e-4b28-b799-733e314a11d4@r36g2000prf.googlegroups.com...
>
> > Hi,
>
> > well I have a question about something I thought would be trivial but
> > it's driving me nuts.
> > In my app I have a list of objects (let's say users) that have been
> > loaded with a datacontext.
> > I can add users, list them, etc.
> > But if I want to edit an user, my problems begin. I pass an user
> > object to a form, with databound controls to its properties (name,
> > surname, password...).
> > Because they are bounded, when I make any change to any control, the
> > underlying object results changed at the time also.
> > It has two effects:
> > a) A list of users shown in other form (from which I select the user
> > to edit) shows every change I make in edit form.
> > b) I am unable to cancel editing, because although changes are not
> > saved to database, they are in memory.
>
> > Any help?
>
> > Thanks for any help

"Jordi Rico" wrote:

> Yes, I've read about this... problem is that with IEditable I have to
> create the methods myself, which can be something tedious for every
> object (specially with those with many properties).
> Also, it doesn't solve problem (a), in which every property being
> modified is shown in an underlying list of users, and is really
> annoying...
>
> On 17 dic, 11:06, "Manu" <manu.is***@gmail.com> wrote:
> > If you are using LINQ to SQL (which you probably are) and Visual Studio LINQ
> > To SQL Autogenerated Classes this is not possible out of the box.
> > To Support this type of functionality your object needs to implement
> > IEditable Interface. which is not implementd in the above case.
> >
> > "Jordi Rico" <jordir***@gmail.com> wrote in message
> >
> > news:8bcece01-9a6e-4b28-b799-733e314a11d4@r36g2000prf.googlegroups.com...
> >
> > > Hi,
> >
> > > well I have a question about something I thought would be trivial but
> > > it's driving me nuts.
> > > In my app I have a list of objects (let's say users) that have been
> > > loaded with a datacontext.
> > > I can add users, list them, etc.
> > > But if I want to edit an user, my problems begin. I pass an user
> > > object to a form, with databound controls to its properties (name,
> > > surname, password...).
> > > Because they are bounded, when I make any change to any control, the
> > > underlying object results changed at the time also.
> > > It has two effects:
> > > a) A list of users shown in other form (from which I select the user
> > > to edit) shows every change I make in edit form.
> > > b) I am unable to cancel editing, because although changes are not
> > > saved to database, they are in memory.
> >
> > > Any help?
> >
> > > Thanks for any help
>
>