Tool Tip for disabled control

**Lee Alexander** · Nov 16 '05, 11:14 AM

Re: Tool Tip for disabled control

When a control is disabled no mouse or keyboard input is passed to the
window. Instead if the window is a child then message is sent to the parent.
So you can catch the fact that the mouse is over a disabled control in the
parent (Form) and handle tips manually knowing that.

Regards
Lee Alexander
..
"Rachel Suddeth" <rachel@bldhoun d.com> wrote in message
news:%23AJHDJul EHA.3016@tk2msf tngp13.phx.gbl. ..[color=blue]
> I didn't know what to put for a subject, so I just tell you a problem
> requirement they want for my ap. If the user hovers over a disabled[/color]
control,[color=blue]
> they want a text bubble to explain why it's disabled. (This does not seem
> unreasonable. There are tool tip bubbles coming up on the disabled toolbar
> buttons on my email reader right now.)
>
> Now the ToolTipProvider will not show a tip on a disabled control. Okay I
> don't mind programming my own, but you don't get any events to react to
> from a disabled control (do you? just one?) So how am I supposed to know
> when to show this text? I'm trying to fake out being disabled by having a
> usercontrol with a "fake disabled" property that will disable all the[/color]
child[color=blue]
> controls, but the UserControl can still receive events. This is not[/color]
great,[color=blue]
> though -- anyone know of any other way?
>
> The problem with this UserControl fake is, well...
> I don't want to respond to most events when it's disabled. I just want a
> "mouse hover" or enter/leave or something.) For everything else, I have to
> put "if (!fake_disabled )" around the whole thing. (This is a big deal
> because pretty much all the controls we will use are of this nature, and
> we're talking many many textboxes and checkboxes and buttons on many many
> forms. That's thousands of events with this extra line of code we have to
> type in every one.) Is there any possible way I could do something in the
> UserControl to avoid dealing with all those events I don't want to respond
> to when fake_disabled, and only allow the one I do want?
>
> Thanks if you have any help at all...
> -Rachel
>
>[/color]

**Rachel Suddeth** · Nov 16 '05, 11:15 AM

Re: Tool Tip for disabled control

Thanks!
Isn't it funny, all the time I struggled with how to do this, and just this
morning I was thinking the same thing... ToolTipProvider is attached to
container, not the control, and you could use something like a MouseMove on
the container. How obvious it seems now, but I never saw it until today.

Typically, these things will actually be on tab pages (not my idea), so I'm
thinking we'll really have to use TabControl mouse events (not sure -- I'm
still confused about where events start, when they bubble up and when they
don't...) maybe build a custom tool tip provider and attach it to a base
TabControl that we'll always use...

Well, I will read up on providers before I ask more questions :-)

-Rachel

"Lee Alexander" <lee@NoSpamPlea se_Digita.com> wrote in message
news:%23UZCPswl EHA.3340@TK2MSF TNGP14.phx.gbl. ..[color=blue]
> When a control is disabled no mouse or keyboard input is passed to the
> window. Instead if the window is a child then message is sent to the[/color]
parent.[color=blue]
> So you can catch the fact that the mouse is over a disabled control in the
> parent (Form) and handle tips manually knowing that.
>
> Regards
> Lee Alexander
> .
> "Rachel Suddeth" <rachel@bldhoun d.com> wrote in message
> news:%23AJHDJul EHA.3016@tk2msf tngp13.phx.gbl. ..[color=green]
> > I didn't know what to put for a subject, so I just tell you a problem
> > requirement they want for my ap. If the user hovers over a disabled[/color]
> control,[color=green]
> > they want a text bubble to explain why it's disabled. (This does not[/color][/color]
seem[color=blue][color=green]
> > unreasonable. There are tool tip bubbles coming up on the disabled[/color][/color]
toolbar[color=blue][color=green]
> > buttons on my email reader right now.)
> >
> > . . .[/color][/color]

**Rachel Suddeth** · Nov 16 '05, 11:15 AM

Re: Tool Tip for disabled control

Thanks!
Isn't it funny, all the time I struggled with how to do this, and just this
morning I was thinking the same thing... ToolTipProvider is attached to
container, not the control, and you could use something like a MouseMove on
the container. How obvious it seems now, but I never saw it until today.

Typically, these things will actually be on tab pages (not my idea), so I'm
thinking we'll really have to use TabControl mouse events (not sure -- I'm
still confused about where events start, when they bubble up and when they
don't...) maybe build a custom tool tip provider and attach it to a base
TabControl that we'll always use...

Well, I will read up on providers before I ask more questions :-)

-Rachel

"Lee Alexander" <lee@NoSpamPlea se_Digita.com> wrote in message
news:%23UZCPswl EHA.3340@TK2MSF TNGP14.phx.gbl. ..[color=blue]
> When a control is disabled no mouse or keyboard input is passed to the
> window. Instead if the window is a child then message is sent to the[/color]
parent.[color=blue]
> So you can catch the fact that the mouse is over a disabled control in the
> parent (Form) and handle tips manually knowing that.
>
> Regards
> Lee Alexander
> .
> "Rachel Suddeth" <rachel@bldhoun d.com> wrote in message
> news:%23AJHDJul EHA.3016@tk2msf tngp13.phx.gbl. ..[color=green]
> > I didn't know what to put for a subject, so I just tell you a problem
> > requirement they want for my ap. If the user hovers over a disabled[/color]
> control,[color=green]
> > they want a text bubble to explain why it's disabled. (This does not[/color][/color]
seem[color=blue][color=green]
> > unreasonable. There are tool tip bubbles coming up on the disabled[/color][/color]
toolbar[color=blue][color=green]
> > buttons on my email reader right now.)
> >
> > . . .[/color][/color]

Tool Tip for disabled control

Tool Tip for disabled control

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