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Checking if a control exists within a container control?

Posted on 2013-11-14
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Last Modified: 2013-11-14
I have a routine that changes various properties of controls. Within this routine, I need to check each control that is passed into it whether or not they are contained within a control. I'm sure this can be done but I've never done it before and don't know how to check for it.

Thanks!
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Question by:BlakeMcKenna
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6 Comments
 
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 39648896
What issue(s) are you having with controls that are not contained by something?...we need more details to even begin to help with this one as it's too vague.
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Author Comment

by:BlakeMcKenna
ID: 39649037
I'm trying to set the background color of a control that resides within a container control to the container control's background color.
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LVL 86

Expert Comment

by:Mike Tomlinson
ID: 39649097
Well, that would be difficult to do if said control doesn't have a container!  =)

You can check the Parent() property to see if it has a value.  It it is Nothing, then no container is set:
        If Not IsNothing(ctl.Parent) Then
            ' ... control has a container ...
        Else
            ' ... control does NOT have a container ...
        End If

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Author Comment

by:BlakeMcKenna
ID: 39649345
Ok,

With the above code, how can I extract the Parent's BackColor or DefaultBackColor value?
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LVL 86

Accepted Solution

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Mike Tomlinson earned 2000 total points
ID: 39649500
?...Control.Parent() returns type Control.  Just access it!

Assuming it is not Nothing:
ctl.BackColor = ctl.Parent.BackColor

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Author Closing Comment

by:BlakeMcKenna
ID: 39649570
Thanks...that worked!
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