Working with multiple Forms

Working with multiple Forms

Post by Rafae » Fri, 16 May 2003 01:03:47

I am starting with Visual and I am following a
book of Mastering Visual Basic, it says when I want to
work with multiple Form I have to declare a variable that
references each form and it says I have to put it outside
any procedure.

Below is the code that I wrote, the problem is when I run
the program it doesn't show any form when I declare the
variable form, it only run if I remove that variable
declaration. My question is where I have to declare the
variables in order to run the program.

Code example:

Public Class Form1
    Inherits System.Windows.Forms.Form
    Private forma2 As New WindowsApplication2.Form2()

    Private Sub Button1_Click(ByVal sender As
System.Object, ByVal e As System.EventArgs) Handles

    End Sub

    Protected Overrides Sub Finalize()
    End Sub
End Class


1. Problem working with multiple forms

I have 2 forms in my project.  Form 2 is opened from form 1 and form 2
is used to enter and display data.  It has a few datagrids, and
textboxes.  On form 2 load i create table styles for the datagrids and
databinding for everything.  When the user is finished entering data
they hit the OK button which then hides form 2 using me.hide and
displays form 1 again.  There is a save button on form 1 that when
clicked runs stored procedures.  THe parameters for these stored
procedures comes from Form 2.  My problem arises when the user tries to
open form 2 again after closing it the first time. I get errors saying
I already have table styles and data bindings set. I cannot clear these
databindings or table styles before the user clicks 'Save' because my
stored procedures need these values from form 2.  Does anyone have any
other techniques to use?


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