Pass a value from child Win form back to textbox of parent Win Form

[juliusy]

I have Form1 launches Form2. On Form2, user will enter input (a string).

When I click OK to close Form2, I need to have that string value populated TextBox1 on Form1 (the parent form).

I only find clues on doing the other way (passing from parent to child), which I have already been doing fine. But don't know how to let child form recognize (already opend/launched) parent form to access control there.

Thank you!

[Killer42]

What version of VB are you using?

And just out of curiosity, how are you passing info from parent to child?

(Have you considered the use of global variables?)

[juliusy]

Visual Studio 2005.

Here is what I used on parent form to launch the child form:

'==================
Dim UserDefinedForm As New diagUserDefined
UserDefinedForm.Show()
UserDefinedForm.txSelected.Text = "Passed from Parent"
'==========================

It works fine and on diagUserDefined win form, the string shows up. But when I need to get a string on this form, how should I pass it back onto a text field of the parent?

Thank you!

[Killer42]

Why can't you just access the controls on the parent or child form in the same way? I konw you can in VB6, but not sure of the syntax in later versions.

Note that one thing which may cause you problems is if you're trying to access controls on a form after closing the form. I don't think it's possible. At a guess, VB would load the form again (but not show it), and the controls would contain whatever defaults they start with.