Hi Linda,

>I have a form, which contains a tab page, from which a user can select a patient record and then open one or more data maintenance forms related to the selected patient. They are allowed to have multiple forms open but I don't want them to have one form open for one patient and another form open for a different patient. If the user comes back to the patient selection form while one of the maintenance forms is still open, I want to disable the patient selection grid. I have tried FormName.Activated(), FormName.Enter() and TabPageName.Enter() but none of them fires when I reactivate the form. I have managed to handle this another way but I'm sure I will need this behavior for something else one of these days. Where do I capture the reactivation of an open form? Thanks.

Is this like a business rule they can only operate on one patient at a time (sorry for the pun) or is it a challenge of having multiple forms open that relate to a patient? I have an application that I participate in the maintenance that is similar in that we only want a single customer selected at a time. We have a form off to the side that is the customer selecter and they can only change customers by changing the selector which will relate any of the other forms. It is a bit of an odd way to do things in todays world, but sometimes you just got to do what they ask for.

Anyway I didn't really have an answer to your question but was curious about the restriction on multiple patients.
Tim