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Author Topic: (Solved)Hiding Controls  (Read 518 times)

JLWest

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(Solved)Hiding Controls
« on: April 12, 2020, 05:56:36 am »
Is there a way to select all the controls on a form loop thru and set the visible attribute to true and/orfalse>

I'm sure I saw that question asked somewhere and answered but can't find it.

Thanks,
« Last Edit: October 23, 2020, 01:19:55 am by JLWest »
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GAN

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Re: Hiding Controls
« Reply #1 on: April 12, 2020, 07:01:07 am »
Something like that?
Code: Pascal  [Select][+][-]
  1.   for i:=0 to ComponentCount-1 do
  2.     if Components[i] is TControl then TControl(Components[i]).Enabled:=False;  

or if you are sure about all the components to be hiden:

Code: Pascal  [Select][+][-]
  1. for i:=0 to ComponentCount-1 do
  2.   TControl(Components[i]).Visible:=False;  
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JLWest

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Re: Hiding Controls
« Reply #2 on: April 12, 2020, 08:07:41 am »
@Gan
I'll try it. I assume Components refers to the form that has focus.
Odd that ComponentCount-1 isn't written Component.Count-1.

Oh well I'll try and if it osn't work I'll add the period.

 Thank you
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GAN

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Re: Hiding Controls
« Reply #3 on: April 12, 2020, 08:35:42 am »
Lazarus 2.0.8 FPC 3.0.4 Linux Mint Mate 19.3
Zeos 7.2.6 - Sqlite 3.32.3

https://gitlab.com/users/GAN__/projects

JLWest

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Re: Hiding Controls
« Reply #4 on: April 12, 2020, 09:08:49 am »
Thanks
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jamie

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Re: Hiding Controls
« Reply #5 on: April 12, 2020, 12:51:42 pm »
If you lay all the controls of interest on something like a panel where the panel will be the parent to all the controls you want to hide then hiding the parent should hide all of the child controls..

 But I guess you have different things in mind..

 I find the best solution is to use the BeginUpdate …. do your changes EndUpdate calls
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