How to make CHECKBOX Form Run Time Visible False

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Hi All

How to Male Form Load All Checkbox Visible False

VB

For Each Control In Me.Controls
            If TypeOf Control Is CheckBox Then
                Control.visible = False
            End If
        Next Control

Please Tell me..

Posted 5-Mar-13 6:10am

Navas Khanj

Updated 5-Mar-13 6:12am

Maciej Los

v2

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[no name] 5-Mar-13 12:15pm

Maybe you add some details to your question, like why you think that this code does not work?

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Maciej Los · Accepted Answer · 2013-03-05T06:21:00

Solution 1

On the first look, your code seems to be OK. I'll change only this line:

VB

If TypeOf ctr Is System.Windows.Forms.CheckBox Then

BTW: Never use names like: Control, etc as name of variable, because Control[^] defines the base class for controls, which are components with visual representation.

More about TypeOf operator: http://msdn.microsoft.com/en-us/library/0ec5kw18.aspx[^]

Posted 5-Mar-13 6:21am

Maciej Los

Comments

Sergey Alexandrovich Kryukov 5-Mar-13 13:55pm

Maybe it does not work because the code is not recursive. Some check boxes can be deeper in hierarchy, in some panels...
—SA

Maciej Los 5-Mar-13 15:01pm

You're right. I forgot about it.

Maciej Los 5-Mar-13 15:37pm

Sergey, if i'm not wrong, making parent control invisible - will do the job ;)

Sergey Alexandrovich Kryukov 5-Mar-13 16:06pm

I don't quite understand. If you make a parent invisible, children are always invisible. If making it all invisible is the goal, this is the way to go. (One-step, laconic, lean... :-)
If you want to see the child but not the parent, you cannot hide the parent. You rather can fill the parent's client area with the child, for example, they it will behave like only a child is visible...
—SA

Sergey Alexandrovich Kryukov 5-Mar-13 13:58pm

Also, in .NET, using the name of the variable or member the same as the name of its type is quite fine and even recommended by Microsoft, did you know it? By a good reason: it's a good way of naming if there is only one variable/name of this type...
Maybe I would not do it with a loop variable though.
—SA

Maciej Los 5-Mar-13 15:03pm

Interesting, i didn't knew it, but now i know ;)

Sergey Alexandrovich Kryukov 5-Mar-13 16:03pm

I often use it for C# members, because it can be capitalized and match the type exactly. In my view, it looks very neat. In the content where you don't need to see the difference between type and the only instance, it's the best not to see it. But the compile knows. Doesn't it make sense?
—SA

Navas Khanj 6-Mar-13 6:56am

hi.. above code is not working.. can u tell me any other options..

Maciej Los 6-Mar-13 7:12am

Please, debug your code and see why it's not working. Read Sergey's comments and check where the checkboxes are placed.

Navas Khanj 6-Mar-13 7:13am

i placed checkbox at Panel

Maciej Los 6-Mar-13 7:16am

So change this: Me.Controls with Me.Panel1.Controls
;)

Navas Khanj 6-Mar-13 7:19am

Thanks for Quick Replay..

Maciej Los 6-Mar-13 7:20am

You're welcome ;)