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Re: [ui-best-practices-working-group] Question about how to handle best practice

What I have done in this case, is to have the message appear as it is, but just without the error icon (when the dialog is first presented), you can use an info icon I think.  I think the message at the top is useful.  Then if the user does something to cause the selection to be empty, it can have the error icon like it does now.

It's sometimes unpleasant to do all of the special handling for these cases, and I don't know of a standard easy pattern (other than the first time flag). :)


brian.fitzpatrick@xxxxxxxxxx wrote:

Hi all...

I'm new to the mailing list and group, so I apologize if this is considered some variety of canned "meat". :)

In DTP, we have a bug (https://bugs.eclipse.org/bugs/show_bug.cgi?id=243489 ) where it's been noted that a wizard starts in an error condition in some cases. It was mentioned that Eclipse UI guideline 5.3 (http://wiki.eclipse.org/User_Interface_Guidelines#Initialization_2) recommends against such a thing, which does make sense.

I've included a screen shot of the wizard. You can clearly see the error noted in the banner at the top of the wizard page.

The rationale I used for the chunk of code creating this problem is as follows:

1) If there's nothing to select in the combo box, the user has to perform an action (i.e. create the object that would be listed in the combo list) before they can continue, therefore rather than allowing the user to click Finish and potentially create an object that would be unusable in an inconsistent state, I block the user from doing that.

2) If there is something to select in the combo box, we automatically select the first item in the list, which clears the error state.

How have other folks dealt with this case? I could see adding an error/message label beneath the combo box that would note this state, but it would take up real estate better used by the rest of the wizard page for custom user interface elements. But other than that and the error message in the wizard page banner, I'm at a loss for options.

Any and all suggestions would be greatly appreciated!


Brian Fitzpatrick
Eclipse Data Tools Platform PMC Chair
Eclipse Data Tools Platform Connectivity Team Lead
Staff Software Engineer, Sybase, Inc.

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