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How do you communicate between two Usercontrols

Posted on 1999-08-28
Medium Priority
Last Modified: 2011-08-18
I am creating an active-x control, and I would like to know how I can call a method,event ect.. from one usercontrol to another usercontrol using (2) usercontrols like
command1_click in first usercontrol would control an event in the second usercontrol!!-

I already tried load (name)  and nothing???

Question by:CindyGraves
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LVL 15

Expert Comment

ID: 1534320
This is possible but this is not good programming practice.
You should use events of your User controls from Container (form)

Accepted Solution

jdunck earned 320 total points
ID: 1534321
  I disagree.  If the UserControls are designed to work together, then it is fine for one control to respond to another controls events.  Think about the ImageList and the PictureBox, TreeView, and such.
  You'll need to have a procedure or Property Set that is passed the UserControl that you want to trap errors for.

has a command button, Command1

Public Event UC1Click()

Private Sub Command1_Click()
  RaiseEvent UC1Click()
End Sub


Dim WithEvents mctlControl as UserControl1

Public Property Set ctlControl(ctlNew as UserControl1)
  Set mctlControl = ctlNew
End Property

Private Sub mctlControl_UC1Click()
  MsgBox "got UserControl1's click"
End Sub

Has UserControl1, UserControl2

Private Sub Form_Load()
  Set UserControl2.ctlControl = UserControl1
End Sub


LVL 15

Expert Comment

ID: 1534322
jdunck's answer is technically correct and solves the problem.
Keeping the controls simple and independant is good practice - of course there are exceptions, like ImageList and such (don't know many samples, perhaps Buddy control)

Author Comment

ID: 1534323
Thank you, for the excellent answer!!


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