"Design" and "Source" buttons disappear

[Bach]

Hi,
I'm new to this

After making some changes to my projects, which I had experieced some out of memory error, java heap memory errors, the "Design" and "Resource" buttons in my project disappeared on some of the other classes that I did not touch.

I only noticed this when I realized I had to make changes to those classes but unable to get back to the designer screen.

Is it because of my memory error? of which the performance degrades as I made more changes/add more components ...
I tried to alleviate this performance issue by entered

java -Xms128m -Xmx384m

that didn't seem to help.

[Eric Clayberg]

After making some changes to my projects, which I had experieced some out of memory error, java heap memory errors, the "Design" and "Resource" buttons in my project disappeared on some of the other classes that I did not touch.

It sounds like you are editing the file with the standard Eclipse Java Editor rather than the Designer Editor.

Open the file with the Designer Editor and you will be fine. See the Designer FAQ for help.

[Bach]

Well it seems that perhaps Eclipse had a hicup?

I "closed all programs" and reopened the packages in the workspace windows....this time all classes had both "Design" and "Source" button.
Earlier only some classes had both buttons appeared.

I don't have the "Open with designer" option under "File". I'm using eclipse 3.0.1.
Thanks Eric for a quick reply!!!

[Eric Clayberg]

Well it seems that perhaps Eclipse had a hicup?

Eclipse is responsible for remembering the last editor used for a file.

Sometimes it forgets and reverts to the default (for Java files, this is the default Java Editor).

In cases like that, you simply need to reopen the file with the Designer Editor as shown in the Designer FAQ.

[Guest]

Just a footnotes to those who may be interested...

In some Eclipse version, it doesn't have "Open with Designer" option.
In this case, you "close all" then reopen and Eclipse should get both the "Design" and "Source" buttons to reappear.

[Eric Clayberg]

In some Eclipse version, it doesn't have "Open with Designer" option.

Not true.

The Open With > Designer Editor option is available in all versions of Eclipse that we support (2.1.x, 3.0.x and 3.1 M6).