How to reference a control which was added programmingly

[william]

Hi, everyone

After adding a control into a container like form using form.controls.a dd(myControl), how could I reference it
For example
dim aControl as new butto
me.controls.add (aControl

then I want set backcolor of this button, how

Thanks

william

[Gary Milton]

Re: How to reference a control which was added programmingly

\\\
Dim aControl As New Button

Me.Controls.Add (aControl)

aControl.BackCo lor = Color.Blue
///

HTH,
Gary

"william" <anonymous@disc ussions.microso ft.com> wrote in message
news:B4D2E6BE-6602-45F5-890D-1C07C890351D@mi crosoft.com...[color=blue]
> Hi, everyone,
>
> After adding a control into a container like form using[/color]
form.controls.a dd(myControl), how could I reference it?[color=blue]
> For example,
> dim aControl as new button
> me.controls.add (aControl)
>
> then I want set backcolor of this button, how?
>
> Thanks.
>
> william[/color]

[APG]

Re: How to reference a control which was added programmingly

Hi William,

You can use the same button object till it is within scope. For example,

Dim aControl As New Button
Me.Controls.Add (aControl)

aControl.BackCo lor = Color.AliceBlue

HTH.

william wrote:
[color=blue]
> Hi, everyone,
>
> After adding a control into a container like form using form.controls.a dd(myControl), how could I reference it?
> For example,
> dim aControl as new button
> me.controls.add (aControl)
>
> then I want set backcolor of this button, how?
>
> Thanks.
>
> william[/color]

[Jeremy Williams]

Re: How to reference a control which was added programmingly


"william" <anonymous@disc ussions.microso ft.com> wrote in message
news:353AA573-C974-44DD-81B9-2EEFEFABD1E6@mi crosoft.com...[color=blue]
> Hi,
> The problem is I did it in a function, so the object(control) is out of[/color]
the scope.[color=blue]
> Here is the case:
> In my form load event, I call a function to load all controls[/color]
programmingly, then in other function, I want to use these controls.[color=blue]
> For example,
> private sub Form_Load(...)
> ...
> LoadControl
> end sub
> private sub LoadControl
> dim aButton as new button
> aButton.name="M yButton"
> aButton.text="O K"
> 'add other properties here
> me.Controls.Add (aButton)
> ...
> end sub
> private sub MyFunction
> ...
> 'todo: need set Backcolor=blue to the button with name of "MyButton"
>
> end sub
>
> How can I get the proper button handler?
>
> thanks
>
> william
>[/color]

The simplest approach is to declare your control variables at the form
scope, not the LoadControl scope. You can then access the variables from any
method in the form class.

Your only other approach is to loop through the controls in the form's
controls collection, looking for the control that matches the criteria you
want to match, then setting the BackColor of that control. This is a very
bad option, though, since you would be looping through every time you wanted
to change a property of a control. Better to just declare the variables at
the form's scope.