Show MDI Child Once

[Mikecrosoft]

Hi,

 

I'm making a MDI based application, but I have no clue on how to open one MDI Child 1 time only, I'm using Main Sub Startup mode, and I'm using the following code to show the Child:

 

This code its into a menu item click, inside the MDI Parent Form

Dim SelFrm as Form

SelFrm = New frmChild
SelFrm.SetParent = Me
SelFrm.Show

 

The problem is when I click the MenuItem a new form its opened instead of set the focus to the current one opened (if its an opened previously)

 

Any help its good !!

 

Thanks

 

Mike

[hog]

I had this problem and got round it by having a variable in the parent form which is set True when the child opens. The if it is True on subsequent clicks it does nothing.

 

Remember to set to false on close tho:)

[PlausiblyDamp]

You could also hold the variable SelFrm at the MDI form level and check if it is nothing - if nothing then you need to create a new instance otherwise use the existing one.

[Mikecrosoft]

Thanks my friends, all the ideas are good, but I forgot something, my program logic its usinf the SelFrm as a variable that opens the selected child form depending the Menu Item selected.

 

Dim SelFrm as Form

Select Case MenuItem.Text

Case "Menu1"
  SelFrm = New Form1

Case "Menu2"
 SelFrm = New Form2

......


End Select

 

May be this is the wrong way but I need it like this.

 

Thanks