Re: How to Use Global Form Controls

The display and use of *thousands* of lines of information is the flaw. A
user cannot make proper use of a listbox control with that many items in it.
Any time you say that you need to populate a list box with that many items,
I'd say that the design if flawed, regardless of whether the use of such UI
is widespread or not.

Is there no other characteristics that you can use to filter the
information? If there are thousands of items in a 'room', are they all of
the same type? Is there no more-localized information about them (rack # or
something)? Hell, 'color' would be better than nothing!

No, I don't believe that you'll be able to do any better, as long as you
insist on stuffing a control that full of data.

Paul T.

"Kevin" <kevins@xxxxxxxxxxxxxxxxx> wrote in message
news:uHjPGpGfHHA.4020@xxxxxxxxxxxxxxxxxxxxxxx
Thanks for the input, Paul. How can you argue the design is flawed if you
don't know the flow of the application? I've seen many commercial
applications that display a huge list of items in a listbox, and the
design of those applications is far from flawed.

Anyway, the application is tracking assets within a particular room:

1) The user enters a room number (6 digits) into an editbox and press
[Next].
2) A list of descriptions for the item is presented. These descriptions
are contained in a table in the database.

We've tried using a datagrid, but it doesn't help with the time issue.

Any suggestions?

Paul G. Tobey [eMVP] wrote:
I'd argue that your UI design is flawed, not the functionality of the
control. A listbox with several *thousand* entries? That seems like a
good idea? Much better to *not* fill the control with anything until the
user gives you some guidance on what really needs to be displayed.

Paul T.

"Kevin" <kevins@xxxxxxxxxxxxxxxxx> wrote in message
news:uebskaGfHHA.1960@xxxxxxxxxxxxxxxxxxxxxxx
I have two distinct, but related problems.

1) I have form that has a listbox control. On xx_Load(), I load the
listbox with items from a SQL CE 2005 database table. This table has
several thousand records. It takes 10-15 seconds to load these records.
How can I reduce the amount of time it takes to load the control? Also,
would a datagrid be a better choice?

2) I thought about pre-loading a "global" listbox control with the
values and simply replacing (or adding) the control to the form. How
would I go about setting this up?

Thanks,
Kevin


.

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