Article View: borland.public.jbuilder.java.swing
Article #7811Re: What is wrong with this code: Combo box displays incorrectly?
From: Rich Wilkman
Date: Mon, 01 Jan 2001 05:30
Date: Mon, 01 Jan 2001 05:30
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5561 bytes
Reid:
Beginners should not start with Applets... What components, what
browser (which version of the browser), etc.
-Rich
Reid wrote:
>
> Well I tried creating the applet using just AWT components and the
> result was the same.
>
> Being new to Java something so simple as dropping down a combobox's
> items should go without a hitch.
>
> It is making a beginner in this language move ahead with little faith..
>
> If these types of things happen with something that should be so basic
> (and nobody can answer the issue) I hate to see what happens when the
> code gets complicated... ;)
>
> Reid
>
> Reid wrote:
>
> > Thanks Rich for the response.
> >
> > Hmmm...
> >
> > I have not done much work on this applet yet so I will try to recreate
> > it without the mix.
> >
> > I will post my results to the thread A.S.A.P.
> >
> > Thanks again for responding..
> >
> > There is not much interaction in these forums ...
> >
> >
> > Reid
> >
> > Rich Wilkman wrote:
> >
> >> Reid:
> >>
> >> The offset is probably caused by using heavyweight and lightweight
> >> components together. You don't post the containers (i.e., Applet of
> >> JApplet, JComboBox, etc.). There's a really good article on this at the
> >> Sun site. Used to be referenced in the hints_and_tips docs with
> >> JBuilder back when Swing was new and folks porting over to it kept
> >> running into problems.
> >>
> >> -Rich
> >>
> >> Reid wrote:
> >>
> >>> Hello James,
> >>>
> >>> Thank you for responding to my post.
> >>>
> >>> You have solved half of the problem!
> >>>
> >>> The trailing semi colon was the reason the combo box was not being
> >>> filled with it's values.
> >>>
> >>> I still have a problem in that when the drop down list containing the
> >>> combo box's items are displayed, the list does not display in the
> >>> correct position. The list displays in an offsetted way to the right
> >>> and down approx 100-200 pixels. This is not the effect I am looking
> >>> for. I of course want the list to drop down underneath the control and
> >>> remain the same size in width.
> >>>
> >>> If the applet is launched as a viewer (via F9) the drop down list
> >>> remains directly under the control but extends out to the left and
> >>> right
> >>> of the applet's canvas and as a result it's width gets truncated.
> >>>
> >>> I am coming primarily from a Delphi background and have never seen this
> >>> type of behavior. (unless of course you are using the TCombobox as an
> >>> OwnerDraw type and are drawing the control's canvas incorrectly)
> >>>
> >>> Do you think it is related to the format of the underlying layout
> >>> manager?
> >>>
> >>> Any more help would be greatly appreciated!
> >>>
> >>> Thanks
> >>>
> >>> Reid
> >>>
> >>> James A. Schulz wrote:
> >>>
> >>>> Just a guess, but do you really want the semicolon after "...index++)"
> >>>>
> >>>> James
> >>>>
> >>>> "Reid" <reidr@buzybee.com> wrote in message
> >>>> news:3A4BAE85.6010902@buzybee.com...
> >>>>
> >>>>> Hello,
> >>>>>
> >>>>> I am new to applets and am having a bit of a problem.
> >>>>>
> >>>>> I have the following code to populate a combo box box with strings..
> >>>>>
> >>>>> String [] appnames = { "Corel Clipart Locator", "Data Doctor", "Event
> >>>>> Organizer", "HTML Developer Database", "Image Thumbnail Viewer",
> >>>>> "iTaxSystem", "Odyssey Warranty Tracker", "SFS Database" };
> >>>>>
> >>>>> private void jbInit() throws Exception {
> >>>>> ...
> >>>>> fillAppNames();
> >>>>> }
> >>>>>
> >>>>>
> >>>>> public void fillAppNames() {
> >>>>> int index;
> >>>>> for (index = 0; index<appnames.length; index++);
> >>>>> {
> >>>>> cbAppNames.addItem(appnames[index]);
> >>>>>
> >>>>> }
> >>>>>
> >>>>> }
> >>>>>
> >>>>> The code above compiles but when run it appears to fill the combo box
> >>>>> with empty strings.
> >>>>>
> >>>>> When the box drops down it appears to have some volume but not the
> >>>>> array
> >>>>> contents. It also shows the drop down an inch or two down and to the
> >>>>> right of the actual combo box control?
> >>>>>
> >>>>> Can someone tell me what I am doing wrong?
> >>>>>
> >>>>>
> >>>>> Any help would be greatly appreciated!
> >>>>>
> >>>>> Thanks
> >>>>>
> >>>>>
> >>>>> Reid Roman
> >>>>> BuzyBee Software
> >>>>> http://www.buzybee.com
> >>>>>
> >
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