Updating controls in a master/detail form

xavigepe

Hi. I have a master/detail form. In the "header" I have a text control where I need to display the information of the description field in the
selected line of the detail subform (don't ask me why :oops: ). I have a function in the subform wich returns the line number and so I can get the description and save it in a global variable or even in a table, but after all I'm not able to display it in my text control in the header.

Could you help me please?.

Thkx,

Soft_Tod

Hello Xavigepe

Try:
http://www.mibuso.com/forum/viewtopic.php?t=1237

or
http://www.mibuso.com/forum/viewtopic.php?t=7998

Regards

xavigepe

Yes I can pass information from my subform to my main form, the problem is displaying that information in a textbox in my form.

andreof

try this:

CurrForm.Update(False)

xavigepe

No luck. ](*,)

I have an error message "The form is not open"

andreof

when are you calling the function in the subform?

and where are you using CurrForm.Update(false)?

xavigepe

Thanks for your help. I'm calling the function in the subform FORM - ONAFTERGETCURRRECORD and I'm using your statement in the main form in the function called by the subform. I' m afraid as other people said in fact I can't pass data from a subform to a main form, I will try putting the information in a "false" header in the subform.

andreof

Now i think i understand.

You cannot call a function in the main form from the subform.
You're calling a function from a form, but its another instance not the main form. That's wy you're having that message ("The form is not open"). You have to find another way to do what you want, or with timers or single instance CU.

Hope i understood correctly and this helps,

regards

Balello

With some performance loss you can set 2 variable one global on Form and the other on the subform and a function that retrieve the value. Then you call the function on OnTimer and change the form variable value only if it's different, otherwise it refresh to much times per second, (remember: call form.update(false) after updating the variable). Subsequently:

OnTimer (set 200ms for example)

if Variable <> subformName.getVariable() then begin
variable := subformName.getVariable();
currform.update(false);
end;
You can also use OnActivate trigger..... but I seldom use it.