How to pass values between forms?

[brianjessup]

How do you pass a value in a module in the mainform to a subform? I have a timer running in the mainform that saves the current time in milliseconds into the variable "tempTime". When a user presses a command button on the subform, I'd like the time to be stored in a txtbox, so the subform has to get access to the tempTime variable on the mainform. The only way I can think to do it, is to have a hidden label constantly updated with the time on the subform by the code on the mainform and then grab the data from that.

Thanks!
Brian

 

[PaddyIrishMan]

Hi,
If you declare the variable as a Public variable in your main form it will then be available as a property of the main form.
I.e. A Form is an instance of a class, Public variables within classes are treated as properties.
So if you have a public variable called myVar in your main form, you should be able to access the data in it via your subform by referencing MainForm.myVar

HTH,
Patrick

 

[brianjessup]

But then...

Wow, great answer, that worked very well. But is there a way to control a subform's variable value from the mainform? I'd like a mainform subroutine to tell the subform that a variable should be set to 1.

 

[PaddyIrishMan]

Hi,
It works both ways - you can declare a Public variable in your subform & reference it from your main form in the same manner.
(YourSubForm.YourVar)

Regards,
Patrick