Article View: borland.public.jbuilder.java.swing
Article #7804Re: What is wrong with this code: Combo box displays incorrectly?
From: Reid
Date: Sun, 31 Dec 2000 03:49
Date: Sun, 31 Dec 2000 03:49
137 lines
5179 bytes
5179 bytes
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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