vb.net sending a variable b/w forms

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how to send a variables between the forms
please send answers

Posted 7-Aug-13 5:46am

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Maciej Los 7-Aug-13 15:32pm

Why? What do you want to achieve?

Winston Madiano 7-Aug-13 20:32pm

Let me google that for you
see the ff. link
http://lmgtfy.com/?q=vb.net+sending+values+between+forms

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Tiaan Lombard (TiLO) · Answer 1 · 2013-08-07T06:35:00

Solution 2

Passing a variable from form1 to form2

In Form 2 first declare the Varible.....

VB

public var1 as string

Then in form1....

VB

Dim f as new form2
f.var1 = "Testing"
f.show

in the load event of form2 put the following code:

VB

messagebox.show var1

It looks like you are still learning.... Before you Google for the answer, Google for "Visual Basic For Beginners" :)

Posted 7-Aug-13 6:35am

Tiaan Lombard (TiLO)

Updated 7-Aug-13 7:20am

v3

Comments

Maciej Los 7-Aug-13 15:44pm

Wrong! See my answer.

Member 10195652 12-Sep-13 11:03am

its have a error
show method does not declare

Manas Bhardwaj · Answer 2 · 2013-08-07T05:49:00

Solution 1

Is Google really broken [^]at your place?

A simple search has given me about 1,530,000 results in (0.27 seconds).

Anyway, look at the following link on CP. Should help:

Pass value between two form in vb.net[^]

Posted 7-Aug-13 5:49am

Manas Bhardwaj

Maciej Los · Answer 3 · 2013-08-07T09:36:00

Solution 3

I'm not sure what do you want to achieve (see my comment to the question), but it's a basic knowledge about ...
Scope in Visual Basic[^]
Variable and Method Scope in Microsoft .NET[^]

If yout want to know how to pass data between forms, use SearchBox[^]. There is tons of information about it.

Posted 7-Aug-13 9:36am

Maciej Los

Comments

Tiaan Lombard (TiLO) 7-Aug-13 16:41pm

Poor you.... In .NET unlike VB6 a form is actually a class that can accept any function, variable property etc just as any other class :(

Maciej Los 7-Aug-13 16:55pm

Tiaan, the code you provided is really bad, because of several reasons. Let imagine, i have 10 forms and i would like to share some data between them. Are you trying to tell me that i need to define 10 variables, one for each form? No, it's bad practice! Come back here when you'll be ready to discuss and you'll find an arguments to discuss, but first read linked articles...

Sergey Alexandrovich Kryukov · Answer 4 · 2013-08-07T15:11:00

This is the popular question about form collaboration. The most robust solution is implementation of an appropriate interface in form class and passing the interface reference instead of reference to a "whole instance" of a Form. Please see my past solution for more detail: How to copy all the items between listboxes in two forms[^].

Please also see other solutions in this discussion. If the application is simple enough, the solution could be as simple as declaring of some internal property in one form and passing a reference to the instance of one form to the instance of another form. For more complex projects, such violation of strictly encapsulated style and loose coupling could add up the the accidental complexity of the code and invite mistakes, so the well-encapsulated solution would be preferable.

Please see also:
http://en.wikipedia.org/wiki/Accidental_complexity[^],
http://en.wikipedia.org/wiki/Loose_coupling[^].

—SA

vb.net sending a variable b/w forms

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