"Chris Strug" <solace1***@hotmail.com> wrote in message
news:uOyW%23x%23UGHA.4952@TK2MSFTNGP09.phx.gbl...
> Hi there,
>
> Possibly something of a simple question but I was wondering is anyone
> could provide a few pointers or links.
>
> Given that I have two forms, a main (frmMain) and a child (frmChild). From
> frmMain, I create an instance of frmChild and show() it. The child form
> contains a property called "getString" which I want to return the contents
> of a textbox from the child form.
>
> I have something that I think works, however it falls over if the user
> exits the child form (such as by using the corner cross) instead of
> clicking cmdReturnData.
>
> I was just wondering if I am on the right lines - creating properties and
> so on for the child form seem pretty intuititive but actually calling them
> from the main form trouble free seems to be a pain.
>
> Apologies if this is a little vague - I'm working on my .net having moved
> from vb6 so I'm still trying to get used to the way that .net works...
>
> Thanks
>
> Chris.
>
>
> ************************
>
> Public Class FrmMain
>
>    Dim frmChild As New frmChild
>
>    Private Sub mainFrm_Load(ByVal sender As System.Object, ByVal e As
> System.EventArgs) Handles MyBase.Load
>
>    End Sub
>
>    Private Sub cmdShowChild_Click(ByVal sender As System.Object, ByVal e
> As System.EventArgs) Handles cmdShowChild.Click
>        frmChild.ShowDialog()
>
>        Me.txtRetrievedData.Text = frmChild.getString
>
>        frmChild.Dispose()
>    End Sub
> End Class
>
>
> ****************
> Public Class frmChild
>
>    Public Property getString()
>        Get
>            Return Me.txtChildTextvalue.Text
>        End Get
>        Set(ByVal value)
>
>        End Set
>    End Property
>
>    Private Sub auxFrm_Load(ByVal sender As System.Object, ByVal e As
> System.EventArgs) Handles MyBase.Load
>
>    End Sub
>
>    Private Sub cmdReturnData_Click(ByVal sender As System.Object, ByVal e
> As System.EventArgs) Handles cmdReturnData.Click
>        Me.Hide()
>    End Sub
> End Class
>

"Martin" <x@y.com> wrote in message
news:ejMSc7%23UGHA.5148@TK2MSFTNGP12.phx.gbl...
> Hi!
>
> The problem is that the childform looses the value of its property after
> it has been closed. When your main asks the property's value I think it
> even recreates an instance of the childform. At least it was that way in
> VB6. What I would do is working the other way around. Create a procedure
> in the main 'SetValue(Byval MyValue as string)' and let the childform do a
> callback to this procedure. This callback you code in the FormClosing
> event. The button can then simply do a Me.Close. Then there is no
> functional difference between closing the form with the [X] and the
> command button.
>
> Hth,
> Martin
>
>

"Chris Strug" <solace1***@hotmail.com> wrote in message
news:uOyW%23x%23UGHA.4952@TK2MSFTNGP09.phx.gbl...
> Hi there,
>
> Possibly something of a simple question but I was wondering is anyone
> could provide a few pointers or links.
>
> Given that I have two forms, a main (frmMain) and a child (frmChild). From
> frmMain, I create an instance of frmChild and show() it. The child form
> contains a property called "getString" which I want to return the contents
> of a textbox from the child form.
>
> I have something that I think works, however it falls over if the user
> exits the child form (such as by using the corner cross) instead of
> clicking cmdReturnData.
>
> I was just wondering if I am on the right lines - creating properties and
> so on for the child form seem pretty intuititive but actually calling them
> from the main form trouble free seems to be a pain.
>
> Apologies if this is a little vague - I'm working on my .net having moved
> from vb6 so I'm still trying to get used to the way that .net works...
>
> Thanks
>
> Chris.
>
>
> ************************
>
> Public Class FrmMain
>
>    Dim frmChild As New frmChild
>
>    Private Sub mainFrm_Load(ByVal sender As System.Object, ByVal e As
> System.EventArgs) Handles MyBase.Load
>
>    End Sub
>
>    Private Sub cmdShowChild_Click(ByVal sender As System.Object, ByVal e
> As System.EventArgs) Handles cmdShowChild.Click
>        frmChild.ShowDialog()
>
>        Me.txtRetrievedData.Text = frmChild.getString
>
>        frmChild.Dispose()
>    End Sub
> End Class
>
>
> ****************
> Public Class frmChild
>
>    Public Property getString()
>        Get
>            Return Me.txtChildTextvalue.Text
>        End Get
>        Set(ByVal value)
>
>        End Set
>    End Property
>
>    Private Sub auxFrm_Load(ByVal sender As System.Object, ByVal e As
> System.EventArgs) Handles MyBase.Load
>
>    End Sub
>
>    Private Sub cmdReturnData_Click(ByVal sender As System.Object, ByVal e
> As System.EventArgs) Handles cmdReturnData.Click
>        Me.Hide()
>    End Sub
> End Class
>

"Claes Bergefall" <louplou@nospam.nospam> wrote in message
news:OssXi2AVGHA.4660@tk2msftngp13.phx.gbl...
> Your code works for me. It does however, suffer from a a few (design and
> runtime) problems
>
> 1. Open frmChild in the designer and set its AcceptButton property to
> cmdReturnData (your button)
> 2. Next select the cmdReturnData button and set its DialogResult property
> to OK
> 3. Remove the auxFrm_Load and cmdReturnData methods from frmChild
> 4. Remove the line "Dim frmChild As New frmChild" from FrmMain
> 5. Change cmdShowChild_Click in FrmMain to the following:
> Private Sub cmdShowChild_Click(ByVal sender As System.Object, ByVal e As
> System.EventArgs) Handles cmdShowChild.Click
> Dim frmChild As New frmChild
> frmChild.ShowDialog()
> Me.txtRetrievedData.Text = frmChild.getString
> frmChild.Dispose()
> End Sub
>
> You should consider adding a cancel button to your frmChild form. If so
> set its DialogResult proeprty to Cancel and set the CancelButton property
> on frmChild to that button. After that you can check the return value from
> ShowDialog to determine which button the user pressed (the X in the corner
> would generate the sama result as the cancel button)
>
>   /claes
>
> "Chris Strug" <solace1***@hotmail.com> wrote in message