How to access a control in another form

[Carlos]

In VB6 I was able to accessa control like a progressbar form a different
form, for example

frm1.progressbar1.value =XXX

but now how can I do that in VB.NET

Thanks

 

[William Ryan eMVP]

Create a public property on the second form that references the control
value - then you can juse reference it as Form2.WhateverProperty

--

W.G. Ryan, eMVP

Have an opinion on the effectiveness of Microsoft Embedded newsgroups?
Let Microsoft know!
https://www.windowsembeddedeval.com/community/newsgroups

 

[Carlos]

Excuse my ignorance,
how can you do that ?

Thanks

 

[a]

There is not an 'automatic form collection' in VB.NET.

If the Progress Bar is on Form1, then when you open Form2, it needs to have
a way of finding the Open version of Form1. Just referring to Form1 does
not get a reference to the Open Form1, just to the Form1 class. (You could
have 20 open Form1's in your app)

So, Form2 would have a variable that refers to the open Form1:

Public frmWithProgressBar as Form1


Then to open Form2, Form1 would do:

Dim f as new Form2
f.frmWithProgressBar = Me
f.show


Then Form2 would reference the ProgressBar on the Form1 that opened it as:

me.frmWithProgressBar.NameOfTheProgressBarOnForm1

You could do a property on Form2, but the Public Variable is easier to begin
with.

Kevin

 

[Herfried K. Wagner [MVP]]

In VB6 I was able to accessa control like a progressbar form a different
form, for example

frm1.progressbar1.value =XXX

If 'frm1' is the app's main form, then you can use the approach
described here:

<URL:http://dotnet.mvps.org/dotnet/faqs/downloads/accessmainform.txt>

If the 2nd form is a dialog that is shown from within the main form or
the form containing the progressbar, add a property to the 2nd form and
assign the progressbar to it after instantiating the 2nd form. Then you
will be able to access the progressbar from within the 2nd form.