Multiple child forms - updating the right one

[Kevin]

I've got an mdiParent form. I open an instance of a child form like
this:

Dim frmChild as New frmCustomers
frmChild.Show()

I've got a few of these open at a time. On each frmChild I open
another form that displays customer data. When I make changes and save
the customer data, I need the updated data to show on the correct
frmChild. How do I know which form opened the customer data form and
how would I reference it?

[tomb]

You could use a controlling class that opens all the child forms,
specifying the mdi form as its mdiform. The controlling class can keep
track of which form has the request to open the data form, and the
controlling class can manage that also. So when the update needs to be
done, the controlling class then handles the placement of the data into
the correct form.

Tom

Kevin wrote:

>I've got an mdiParent form. I open an instance of a child form like
this:

Dim frmChild as New frmCustomers
frmChild.Show( )

I've got a few of these open at a time. On each frmChild I open
another form that displays customer data. When I make changes and save
the customer data, I need the updated data to show on the correct
frmChild. How do I know which form opened the customer data form and
how would I reference it?

[Kevin]

Could you give me a "for instance"?
On Wed, 27 Sep 2006 17:30:20 -0400, tomb <to**@technetce nter.com>
wrote:

>You could use a controlling class that opens all the child forms,
specifying the mdi form as its mdiform. The controlling class can keep
track of which form has the request to open the data form, and the
controlling class can manage that also. So when the update needs to be
done, the controlling class then handles the placement of the data into
the correct form.

Tom

Kevin wrote:

>>I've got an mdiParent form. I open an instance of a child form like
this:

Dim frmChild as New frmCustomers
frmChild.Show ()

I've got a few of these open at a time. On each frmChild I open
another form that displays customer data. When I make changes and save
the customer data, I need the updated data to show on the correct
frmChild. How do I know which form opened the customer data form and
how would I reference it?

[GhostInAK]

Hello Kevin,

-CALLER-
tFormVariable.S how(me)

-DATA FORM-
if not nothing is me.owner then
' We got a live one.
endif

-Boo

I've got an mdiParent form. I open an instance of a child form like
this:

Dim frmChild as New frmCustomers
frmChild.Show()
I've got a few of these open at a time. On each frmChild I open
another form that displays customer data. When I make changes and save
the customer data, I need the updated data to show on the correct
frmChild. How do I know which form opened the customer data form and
how would I reference it?

[Kevin]

Thanks, but the .Show(Me) function won't work with MDI Child forms,
which my form needs to be.
On Thu, 28 Sep 2006 00:43:22 +0000 (UTC), GhostInAK
<gh*******@gmai l.comwrote:

>Hello Kevin,

-CALLER-
tFormVariable. Show(me)

-DATA FORM-
if not nothing is me.owner then
' We got a live one.
endif

-Boo

>I've got an mdiParent form. I open an instance of a child form like
this:

Dim frmChild as New frmCustomers
frmChild.Show( )
I've got a few of these open at a time. On each frmChild I open
another form that displays customer data. When I make changes and save
the customer data, I need the updated data to show on the correct
frmChild. How do I know which form opened the customer data form and
how would I reference it?

[Sca_Tone]

Hi Kevin,
You would add code that works in the same way the MDIParent calls
the ChildForm.

eg.
Dim frmChild as New frmCustomers
frmChild.MdiPar ent = Me
frmChild.Show()

>From the code above you now have an MDIParent with a linked Child as

you orginally stated.
Then you state you call another form from the child to amend customer
data.

eg.
Dim frmNewForm as new frmCustomerData
frmNewForm.Show ()

**** THE FIX ****
In the customer data form you load from the child, you need to add a
'/ ADD TO CUSTOMER DATA FORM
Private _ParentForm As Form
Public Property ParentForm() As Form
Get
Return _ParentForm
End Get
Set(ByVal value As Form)
_ParentForm = value
End Set
End Property

Then you call the customer data form as below
Dim frmNewForm as new frmCustomerData
frmNewForm.Pare ntForm = frmChild
frmNewForm.Show ()

This allows you from the customer data form to alter the field values
on the child form
_ParentForm.Tex tBox1.Text = "Joe Bloggs"

Regards,
Tony
Kevin wrote:

I've got an mdiParent form. I open an instance of a child form like
this:

Dim frmChild as New frmCustomers
frmChild.Show()

I've got a few of these open at a time. On each frmChild I open
another form that displays customer data. When I make changes and save
the customer data, I need the updated data to show on the correct
frmChild. How do I know which form opened the customer data form and
how would I reference it?

[Kevin]

When I've tried these suggestions, other forms weren't able to access
my 'CustomerData' form. So here's what I came up with in case anybody
cares or wants to do the same thing:

'Find the correct frmCustomers that opened this form and update the
grid
For X = 0 To (frmMain.MdiChi ldren.Length) - 1
Dim tempChild As Form = CType(frmMain.M diChildren(X),
Form)
If tempChild.Name = "frmCustome rs" Then
Dim CallingForm As frmCustomers =
DirectCast(temp Child, frmCustomers)
If CallingForm.txt CourseID.Text = Me.txtCourseID. Text
Then
CallingForm.Loa dChkbox()

'Locate the updated record in the Grid1
For Y = 0 To CallingForm.Gri d1.Rows.Count - 1
If CallingForm.Gri d1.Rows(Y).Cell s(0).Value =
txtCustomerNumb er.Text Then
CallingForm.Gri d1.CurrentCell =
CallingForm.Gri d1.Rows(Y).Cell s(1)
Exit For
End If
Next Y
Me.Close()
CallingForm.Sho w()
CallingForm.Gri d1.Focus()
Exit For
End If
End If
Next X

When I open the CustomerData form, I fill a textbox with the customer
number on both forms. I then look for that customer number in the
textbox on all frmCustomers. It works.

On 28 Sep 2006 15:05:58 -0700, "Sca_Tone" <sw**********@h otmail.com>
wrote:

>Hi Kevin,
You would add code that works in the same way the MDIParent calls
the ChildForm.

eg.
Dim frmChild as New frmCustomers
frmChild.MdiPa rent = Me
frmChild.Show( )

>>From the code above you now have an MDIParent with a linked Child as

you orginally stated.
Then you state you call another form from the child to amend customer
data.

eg.
Dim frmNewForm as new frmCustomerData
frmNewForm.Sho w()

**** THE FIX ****
In the customer data form you load from the child, you need to add a
'/ ADD TO CUSTOMER DATA FORM
Private _ParentForm As Form
Public Property ParentForm() As Form
Get
Return _ParentForm
End Get
Set(ByVal value As Form)
_ParentForm = value
End Set
End Property

Then you call the customer data form as below
Dim frmNewForm as new frmCustomerData
frmNewForm.Pare ntForm = frmChild
frmNewForm.Show ()

This allows you from the customer data form to alter the field values
on the child form
_ParentForm.Tex tBox1.Text = "Joe Bloggs"

Regards,
Tony
Kevin wrote:

>I've got an mdiParent form. I open an instance of a child form like
this:

Dim frmChild as New frmCustomers
frmChild.Show( )

I've got a few of these open at a time. On each frmChild I open
another form that displays customer data. When I make changes and save
the customer data, I need the updated data to show on the correct
frmChild. How do I know which form opened the customer data form and
how would I reference it?