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How can I enable few buttons in few forms?

Posted on 2003-12-11
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Last Modified: 2012-05-04
In VB6 few forms does include a button called cmdDelete, few other do not include this button. On main form load I would like to run some code to enable cmdDelete wherever it is found in a form. cmdDelete.enabled is been set to False in design time, so I need to change it to True during run time.
Any idea?
HJ.
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Question by:hjaaban
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11 Comments
 
LVL 3

Expert Comment

by:sohilm
ID: 9920413
pretty simple actually, all you have to do is in the form load event type in cmdDelete.Enabled = true.

Thanks
Sohil
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LVL 3

Expert Comment

by:sohilm
ID: 9920445
oops misunderstood. Try this logic.
  Go through all child forms (not sure of vb6 but in .net there is an mdichildren container you can interate through).
    For each child form go through all controls (there  shuold be a control container).
      Check the name of the control contaiter to see if it is cmddelete
         if so just enable it.

Hope this helps.
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LVL 48

Expert Comment

by:Mikal613
ID: 9920468
private sub EnableDelete()
Dim fun As CommandButton

For Each fun In Controls
    If fun.Name = "cmdDelete" Then fun.Enabled = False
Next
End Sub
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LVL 48

Expert Comment

by:Mikal613
ID: 9920473
put in in form_Load

private sub EnableDelete()
Dim fun As CommandButton

For Each fun In Controls
    If fun.Name = "cmdDelete" Then fun.Enabled = False
Next
End Sub
0
 

Author Comment

by:hjaaban
ID: 9920925
Mikal613,
you are close to give me answer, but I get error message says Type mismatch for fun.
Also I need to run code to scan all forms that include cmdDelete and skip those which don't include cmdDelete.
Any new?
HJ.
0
 
LVL 48

Expert Comment

by:Mikal613
ID: 9920977
dim frm as Form
dim fun as Control

for each frm in forms
   for each fun in controls
          if fun.Name = "CmdDelete" then
                 fun.enabled = False
          end if
   next  
 
next
0
 

Author Comment

by:hjaaban
ID: 9921826
The following code compiles and runs:

Dim frm As Form
Dim fun As Control
For Each frm In Forms
   For Each fun In frm
          If fun.Name = "cmdDelete" Then
            frm.cmdDelete.Enabled = True
          End If
    Next
Next

But I don't know why unloaded forms are not be effected by the above code.
for example: form frmstudent does not change the status of cdmDelete button, unless I open it and run the code again.
any idea how can I make all forms (loaded and unloaded) take changes?
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Accepted Solution

by:
Mikal613 earned 50 total points
ID: 9921858
you cant change an unloaded form at runtime unless you load all the forms at runtime and then run the procedure

or just put the control loop on every form load you wanna enable the button
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LVL 1

Expert Comment

by:Dameon1
ID: 10180355
Of course you could have an EnableDelets sub on all of the forms with the button. You wouldn't have to loop.
In forms:
Sub EnableDelete
cmddelete.enabled = true
End Sub

To enable all delete buttons:

Sub EnableAllDeletes
frmA.enabledelete
frmb.enabledelete
...
End SUb

If neccesary you could have the forms with delete buttons added to a collection. You could then loop through the collection and do EnableDelete on each one instead of using the sub above.
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