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Update status bar of MDI parent from child forms in windows application

Posted on 2004-10-07
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Last Modified: 2007-12-19
Hi,
I need to know the best way of coding that will write to status bar panels of mdi parent from child forms.

Thanks in advance!
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Question by:Coolcld
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13 Comments
 
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Expert Comment

by:123654789987
ID: 12256462
In your MDI parent class u can have a static method, that updates the Status bar text. Then u can call this static method from the Child forms
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Author Comment

by:Coolcld
ID: 12256515
Hi,
Thanks for the comment. Do I need to share the status bar control also? Because I am not able to access 'Friend' type control inside shared method.

Thanks in advance!
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LVL 7

Expert Comment

by:J_Mak
ID: 12256516
To obtain the Mdi Parent of the a child form, try the following:

'this is in the child form
Me.MdiParent.StatusBar1.Text = "I'm a child"

That will do it for you. Cheers.
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Author Comment

by:Coolcld
ID: 12256578
Hi 123654789987,
How to code a static method in windows application? I used shared in place of static. Is it correct?

Method:
Public Shared Sub WriteStatus(ByVal strMessage As String)
            stsMain.Panels(0).Text = strMessage
End Sub

Staus bar Control:
Shared WithEvents stsMain As System.Windows.Forms.StatusBar

This works. But need to know whether it is the best way of doing.
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LVL 7

Expert Comment

by:J_Mak
ID: 12256655
Can't you just perform this command:

Me.MdiParent.StatusBar1.Panels(0).Text = strMessage

You wouldn't need to write your own function since you can access the parent's status bar using properties.




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Author Comment

by:Coolcld
ID: 12257012
Hi  J_Mak,
Iam not able to access statusbar of mdiparent from child.
 i.e.Me.MdiParent.stsMain is not accepted. Did you tried this and worked for you? Please let me know.
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LVL 18

Expert Comment

by:armoghan
ID: 12257184
StatusBar1 seems to be public in J_Mak  post
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LVL 18

Expert Comment

by:armoghan
ID: 12257188
and you need to cast it to the name of your MDI parent
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Expert Comment

by:armoghan
ID: 12257193
something like this in C#
((MyParentForm)this.MdiParent).stsMain
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Accepted Solution

by:
J_Mak earned 100 total points
ID: 12258346
Oh ok.... i only had a guess at it... I have just realised that it may not work. I think you should have a property in your Parent class like so:

   Shared WithEvents stsMain As System.Windows.Forms.StatusBar

   Friend ReadOnly Property GetStatusBar() As StatusBar
        Get
            GetStatusBar= stsMain
        End Get
    End Property

In your child form you can do this to access the parent's status bar:

Me.MdiParent.GetStatusBar.Panels(0).Text = strMessage

Hope that works now.
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Assisted Solution

by:wguerram
wguerram earned 25 total points
ID: 12268263
You have to change the Modifiers property of the status bar to public in order to have access.

this property can be changed at design time.
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Author Comment

by:Coolcld
ID: 12274362
Hi,
I made the status bar as 'public' and added the below code

Me.MdiParent.GetStatusBar.Panels(0).Text = strMessage

It works fine. Thanks.
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LVL 7

Expert Comment

by:J_Mak
ID: 12274407
no worries, glad i could help.
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