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property bag

Posted on 2001-08-09
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Last Modified: 2013-11-23
I have an ocx called OCX1.
When the acivex loads(executes) I like to get a value from property bag(Sessionid).
When OCX Terminates, I like to place a value -1.
-1 tells me that everything was okay when the user log out.
How can it be done using property bag or......

Thanks
Nesifa
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Question by:nesifa
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by:rkot2000
ID: 6369550
i think you need to save this data to a file or registry.
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by:nesifa
ID: 6369557
I see applications that you can change some of the poperties of design time. Next time you login, changes has taken place.
Let say I have a label with caption label1.
I want to save some information on label caption, so next time he/she logs in I grab the left over value.
Thanks.
nesifa!
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by:rkot2000
ID: 6369571
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rkot2000 earned 10 total points
ID: 6369579
create a new mdi project using vb project wizard and check code on mdi_load mdi_unload

Private Sub MDIForm_Unload(Cancel As Integer)
  If Me.WindowState <> vbMinimized Then
    SaveSetting App.Title, "Settings", "MainLeft", Me.Left
    SaveSetting App.Title, "Settings", "MainTop", Me.Top
    SaveSetting App.Title, "Settings", "MainWidth", Me.Width
    SaveSetting App.Title, "Settings", "MainHeight", Me.Height
  End If
End Sub


Private Sub MDIForm_Load()
  Me.Left = GetSetting(App.Title, "Settings", "MainLeft", 1000)
  Me.Top = GetSetting(App.Title, "Settings", "MainTop", 1000)
  Me.Width = GetSetting(App.Title, "Settings", "MainWidth", 6500)
  Me.Height = GetSetting(App.Title, "Settings", "MainHeight", 6500)
End Sub

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Expert Comment

by:capkirkie
ID: 6369598
PropBag.WriteProperty("propertyname",value[,defaultvalue])
PropBag.ReadProperty("propertyname"[,defaultvalue])

Reads and write's from/to property bag. The deafaultvalue is optional, in the writeproperty it ensure no unnescecary memory is used. When the written property is the default property, nothing is written to memory. The default value of the readproperty should be set to the same value. These properties should also be the same you used designing your ocx. You can use the read- and write- property events to implement all this. I hope this will help you.
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by:rkot2000
ID: 6369607
capkirkie - can you use this to preserve data between vb applications. start application read old data, set new data, stop application, start application and read new data?
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Expert Comment

by:capkirkie
ID: 6369625
No just for saving the properties a programmer changes in design time in your ocx. But I guess you knew that too.
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by:nesifa
ID: 6372672
Thanks
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Author Comment

by:nesifa
ID: 6372673
Thanks
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by:Moondancer
ID: 6697177
If this proposed answer has helped you, please accept it, grade it and close this question.  If it did not, reject it and add comments as to your progress and what else is needed.  If no action is taken here by next week, we'll need to decide this outcome.  Expert input always welcome as well.

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Community Support Moderator @ Experts Exchange
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