Re: fix for blinking data-aware controls?

swansnow wrote: 
I have a form with data-aware controls, connected to a datasource. If
you click on a button, you can print a report. When the report is
generated, it scrolls through the dataset, which is connected to the
data-aware controls, so each record flickers on the screen as the
dataset is scrolled.  How do I disable this behavior (without using a
separate query...)?

The easy way is "DataSet.DisableControls" / "DataSet.EnableControls" to avoid all controls from showing the traversing.
If it's a Master/Detail relationship involved, you can't do this. The best then would possibly be to disconnect DataSource components from DB controls. Or disabling rendering of the form (which may lead to erased parts of it, I guess) while reporting.

The constraints are:
1) the report needs to loop through the current dataset (which may have
filters, or ranges, or master-detail relations being applied)


I usually don't do this - I usually use a separate data instance.

2) the controls should (preferably) remain showing the record which was
current when the button was clicked (if not possible, it's ok for them
to become blank)

If you can use DisableControls, this will be the case. But then the cursor of the details dataset won't move either...

3) When the report is finished, the controls should show the record
which was current before the button was clicked

Can easily be done through bookmarks / requerying, depending on the dataset component type. What DB are you using ?

Bjoerge
.

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