Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Removing items from TableTree
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| Re: Removing items from TableTree [message #448454 is a reply to message #448399] |
Mon, 10 January 2005 16:26   |
 Kalman Hazins
Messages: 76
Registered: July 2009 |
Member |
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Veronika saves the day again ...
Let me restate the question.
I have a bunch of rows from the database, which I am displaying in my table.
I really wanted to display the primary key column (some id) as a hyperlink,
so that when a user clicks on it - he can go to a different screen and view
the row.
Now, my question was once I place a control (hyperlink in my case) into the
table, and then later decide to delete the row from the table, how would I
get to the editor (hyperlink) and delete it.
Are you saying that I would need to keep a reference to the
editors(hyperlinks) in some vector and then loop thru them to find out
which tabletreeitem they are part of and then delete them? There's got to be
a better way of doing this, no?
Thanx,
- Kalman
P.S. I checked out TableTreeViewer and I really like the MVC approach to
displaying and deleting things from the table, but I think I am still going
to have a problem with deleting hyperlinks ...
"Veronika Irvine" <veronika_irvine@oti.com> wrote in message
news:crmukj$aqr$1@www.eclipse.org...
> To remove a TableTreeItem just call dispose on the TableTreeItem.
>
> You must clean up the TableTreeEditor yourself. If you want to keep the
> same TableTreeEditor for other items, set the item to null
> (TableTreeEditor.setItem(null)) before disposing the TableTreeItem.
>
> You can get the TableTreeItem associated with a TableTreeEditor using
> TableTreeEditor.getItem.
>
>
> "Kalman" <kalman@zikal.com> wrote in message
> news:crmo53$jqk$1@www.eclipse.org...
> > Hi, group.
> >
> > How do I remove items from TableTree? So, say I have a TableTree with 3
> > nodes, which themselves have 3 nodes each. I simply want to delete all
> > nodes
> > under a "root" node when the particular "root" node is clicked.
> >
> > Any ideas?
> >
> > Also, if I am using TableTreeEditor is there a way to know which
> > TableTreeEditor is associated with which TableTreeItem (because when I
> > dispose() of the TableTreetem, the Editor still displays)
> >
> > Any help is appreciated,
> > - Kalman
> >
> >
>
>
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| Re: Removing items from TableTree [message #448542 is a reply to message #448454] |
Tue, 11 January 2005 20:29 |
Veronika Irvine
Messages: 1272
Registered: July 2009 |
Senior Member |
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|
You could use something like TableTreeItem.setData("TableTreeEditor",
editor) and TableTreeItem.getData("TableTreeEditor") to manage the
association.
"Kalman" <kalman@zikal.com> wrote in message
news:cruaak$i7o$1@www.eclipse.org...
> Veronika saves the day again ...
>
> Let me restate the question.
>
> I have a bunch of rows from the database, which I am displaying in my
> table.
> I really wanted to display the primary key column (some id) as a
> hyperlink,
> so that when a user clicks on it - he can go to a different screen and
> view
> the row.
>
> Now, my question was once I place a control (hyperlink in my case) into
> the
> table, and then later decide to delete the row from the table, how would I
> get to the editor (hyperlink) and delete it.
>
> Are you saying that I would need to keep a reference to the
> editors(hyperlinks) in some vector and then loop thru them to find out
> which tabletreeitem they are part of and then delete them? There's got to
> be
> a better way of doing this, no?
>
> Thanx,
> - Kalman
>
> P.S. I checked out TableTreeViewer and I really like the MVC approach to
> displaying and deleting things from the table, but I think I am still
> going
> to have a problem with deleting hyperlinks ...
>
>
>
> "Veronika Irvine" <veronika_irvine@oti.com> wrote in message
> news:crmukj$aqr$1@www.eclipse.org...
>> To remove a TableTreeItem just call dispose on the TableTreeItem.
>>
>> You must clean up the TableTreeEditor yourself. If you want to keep the
>> same TableTreeEditor for other items, set the item to null
>> (TableTreeEditor.setItem(null)) before disposing the TableTreeItem.
>>
>> You can get the TableTreeItem associated with a TableTreeEditor using
>> TableTreeEditor.getItem.
>>
>>
>> "Kalman" <kalman@zikal.com> wrote in message
>> news:crmo53$jqk$1@www.eclipse.org...
>> > Hi, group.
>> >
>> > How do I remove items from TableTree? So, say I have a TableTree with 3
>> > nodes, which themselves have 3 nodes each. I simply want to delete all
>> > nodes
>> > under a "root" node when the particular "root" node is clicked.
>> >
>> > Any ideas?
>> >
>> > Also, if I am using TableTreeEditor is there a way to know which
>> > TableTreeEditor is associated with which TableTreeItem (because when I
>> > dispose() of the TableTreetem, the Editor still displays)
>> >
>> > Any help is appreciated,
>> > - Kalman
>> >
>> >
>>
>>
>
>
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| Re: Removing items from TableTree [message #448607 is a reply to message #448542] |
Tue, 11 January 2005 22:04 |
Kalman Hazins
Messages: 76
Registered: July 2009 |
Member |
|
|
cute ... thanx, that should do it ...
"Veronika Irvine" <veronika_irvine@oti.com> wrote in message
news:cs1d0o$t3n$1@www.eclipse.org...
> You could use something like TableTreeItem.setData("TableTreeEditor",
> editor) and TableTreeItem.getData("TableTreeEditor") to manage the
> association.
>
>
> "Kalman" <kalman@zikal.com> wrote in message
> news:cruaak$i7o$1@www.eclipse.org...
> > Veronika saves the day again ...
> >
> > Let me restate the question.
> >
> > I have a bunch of rows from the database, which I am displaying in my
> > table.
> > I really wanted to display the primary key column (some id) as a
> > hyperlink,
> > so that when a user clicks on it - he can go to a different screen and
> > view
> > the row.
> >
> > Now, my question was once I place a control (hyperlink in my case) into
> > the
> > table, and then later decide to delete the row from the table, how would
I
> > get to the editor (hyperlink) and delete it.
> >
> > Are you saying that I would need to keep a reference to the
> > editors(hyperlinks) in some vector and then loop thru them to find out
> > which tabletreeitem they are part of and then delete them? There's got
to
> > be
> > a better way of doing this, no?
> >
> > Thanx,
> > - Kalman
> >
> > P.S. I checked out TableTreeViewer and I really like the MVC approach to
> > displaying and deleting things from the table, but I think I am still
> > going
> > to have a problem with deleting hyperlinks ...
> >
> >
> >
> > "Veronika Irvine" <veronika_irvine@oti.com> wrote in message
> > news:crmukj$aqr$1@www.eclipse.org...
> >> To remove a TableTreeItem just call dispose on the TableTreeItem.
> >>
> >> You must clean up the TableTreeEditor yourself. If you want to keep
the
> >> same TableTreeEditor for other items, set the item to null
> >> (TableTreeEditor.setItem(null)) before disposing the TableTreeItem.
> >>
> >> You can get the TableTreeItem associated with a TableTreeEditor using
> >> TableTreeEditor.getItem.
> >>
> >>
> >> "Kalman" <kalman@zikal.com> wrote in message
> >> news:crmo53$jqk$1@www.eclipse.org...
> >> > Hi, group.
> >> >
> >> > How do I remove items from TableTree? So, say I have a TableTree with
3
> >> > nodes, which themselves have 3 nodes each. I simply want to delete
all
> >> > nodes
> >> > under a "root" node when the particular "root" node is clicked.
> >> >
> >> > Any ideas?
> >> >
> >> > Also, if I am using TableTreeEditor is there a way to know which
> >> > TableTreeEditor is associated with which TableTreeItem (because when
I
> >> > dispose() of the TableTreetem, the Editor still displays)
> >> >
> >> > Any help is appreciated,
> >> > - Kalman
> >> >
> >> >
> >>
> >>
> >
> >
>
>
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