MDI question - swapping child forms

[Arg81]

I've set my MDI application up so that only 1 form can be opened at a time.

What I want to do;

(a) Open search form and browse to row to be Edited
(b) Click on Edit button. Current row ID is saved as global variable. (varID)
(c) Search form closes to return to "Menu" (MDI Parent), and then Edit form opens.
(d) form loads row based on the varID value, and the user can make necessary changes then close the form to return back to menu.

the part I'm stuck at is (c). I need to find a way to return to the MDI parent and then open another child form.

I tried using Got_Focus on the Parent, so that when the search form is closed, a variable is saved, then when the Menu gets Focus again, if varEdit = True then open the Edit form, but I got a blank error back first! Then I tried again and the error was "cannot create Window Handler" on the frm.show()
Code:

[SIZE=2][COLOR=#0000ff]Private[/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff]Sub[/COLOR][/SIZE][SIZE=2] frmMenu_GotFocus([/SIZE][SIZE=2][COLOR=#0000ff]ByVal[/COLOR][/SIZE][SIZE=2] sender [/SIZE][SIZE=2][COLOR=#0000ff]As[/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff]Object[/COLOR][/SIZE][SIZE=2], [/SIZE][SIZE=2][COLOR=#0000ff]ByVal[/COLOR][/SIZE][SIZE=2] e [/SIZE][SIZE=2][COLOR=#0000ff]As[/COLOR][/SIZE][SIZE=2] System.EventArgs) [/SIZE][SIZE=2][COLOR=#0000ff]Handles[/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff]Me[/COLOR][/SIZE][SIZE=2].GotFocus
[/SIZE] 
[SIZE=2][COLOR=#0000ff]If[/COLOR][/SIZE][SIZE=2] varEditRecord = [/SIZE][SIZE=2][COLOR=#0000ff]True[/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff]Then
[/COLOR][/SIZE][SIZE=2][/SIZE][SIZE=2][COLOR=#0000ff]Dim[/COLOR][/SIZE][SIZE=2] frm [/SIZE][SIZE=2][COLOR=#0000ff]As[/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff]New[/COLOR][/SIZE][SIZE=2] frmCreateSampleRequest
frm.MdiParent = [/SIZE][SIZE=2][COLOR=#0000ff]Me
[/COLOR][/SIZE][SIZE=2]frm.Show()
[/SIZE][SIZE=2][COLOR=#0000ff]Me[/COLOR][/SIZE][SIZE=2].MDIMenuActive([/SIZE][SIZE=2][COLOR=#0000ff]False[/COLOR][/SIZE][SIZE=2])
[/SIZE][SIZE=2][COLOR=#0000ff]End[/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff]If[/COLOR][/SIZE]
[SIZE=2][COLOR=#0000ff] 
[/COLOR][/SIZE][SIZE=2][/SIZE][SIZE=2][COLOR=#0000ff]End[/COLOR][/SIZE][SIZE=2] [/SIZE][SIZE=2][COLOR=#0000ff]Sub[/COLOR][/SIZE]
[SIZE=2][COLOR=#0000ff]

[/COLOR][/SIZE]

Is there a way of doing this successfully?

Regards,

 

[cjard]

Ever heard of delegates? I wrote a tutorial here..

 

[Arg81]

no I haven't, and I'm just doing a search now!!

 

[JohnH]

How about using the search form closed event? the new form you are creating only needs the same mdiparent as current.

    Private Sub searchform_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) _
    Handles Me.FormClosed
        Dim f As New editform
        f.MdiParent = Me.MdiParent
        f.Show()
    End Sub

 

[Arg81]

two thumbs up!!