How can I make a code in an event not execute in design time

[Lucas Sain]

Hi,
How can I make a code in an event not execute in design time. I have a
Baseform that has X code in the event "VisibleChanged ". All my forms
inherit from this form. The code in this event always gets executed in
design time, how do I avoid this??

Regards
Lucas

[Eric Cadwell]

Re: How can I make a code in an event not execute in design time

Your supposed to be able to use the DesignMode property.

HTH;
Eric Cadwell

http://www.origincontrols.com

[Nicholas Paldino [.NET/C# MVP]]

Re: How can I make a code in an event not execute in design time

Lucas,

The Control class derives from Component. On the Component class, there
is a property, DesignMode. If this property returns true, then your code is
running in a designer. You can place a check around the firing of your
event to see if your control is hosted in a designer, and not call it if
that is the case.

Hope this helps.


--
- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard. caspershouse.co m

"Lucas Sain" <lsain@lidersof t.com> wrote in message
news:eJFjR4KnDH A.2732@TK2MSFTN GP11.phx.gbl...[color=blue]
> Hi,
> How can I make a code in an event not execute in design time. I have a
> Baseform that has X code in the event "VisibleChanged ". All my forms
> inherit from this form. The code in this event always gets executed in
> design time, how do I avoid this??
>
> Regards
> Lucas
>
>[/color]

[Lucas Sain]

Re: How can I make a code in an event not execute in design time

Thanks
It worked great.

regards
Lucas

"Eric Cadwell" <ecadwell@ns.in sight.com> wrote in message
news:u%23DlscLn DHA.3256@tk2msf tngp13.phx.gbl. ..[color=blue]
> Your supposed to be able to use the DesignMode property.
>
> HTH;
> Eric Cadwell
> http://www.origincontrols.com
>
>[/color]

[Lucas Sain]

Re: How can I make a code in an event not execute in design time

Thanks
It worked great.

regards
Lucas

"Nicholas Paldino [.NET/C# MVP]" <mvp@spam.guard .caspershouse.c om> wrote in
message news:uthrOdLnDH A.1284@TK2MSFTN GP09.phx.gbl...[color=blue]
> Lucas,
>
> The Control class derives from Component. On the Component class,[/color]
there[color=blue]
> is a property, DesignMode. If this property returns true, then your code[/color]
is[color=blue]
> running in a designer. You can place a check around the firing of your
> event to see if your control is hosted in a designer, and not call it if
> that is the case.
>
> Hope this helps.
>
>
> --
> - Nicholas Paldino [.NET/C# MVP]
> - mvp@spam.guard. caspershouse.co m
>
> "Lucas Sain" <lsain@lidersof t.com> wrote in message
> news:eJFjR4KnDH A.2732@TK2MSFTN GP11.phx.gbl...[color=green]
> > Hi,
> > How can I make a code in an event not execute in design time. I have[/color][/color]
a[color=blue][color=green]
> > Baseform that has X code in the event "VisibleChanged ". All my forms
> > inherit from this form. The code in this event always gets executed in
> > design time, how do I avoid this??
> >
> > Regards
> > Lucas
> >
> >[/color]
>
>[/color]

[Sean J Donovan]

Re: How can I make a code in an event not execute in design time

Lucas Sain wrote:[color=blue]
> Hi,
> How can I make a code in an event not execute in design time. I have a
> Baseform that has X code in the event "VisibleChanged ". All my forms
> inherit from this form. The code in this event always gets executed in
> design time, how do I avoid this??
>
> Regards
> Lucas
>
>[/color]

Hold on, DesignMode isn't reliable.

If you have a component within a component, the DesignMode property on
the embedded component is **always** wrong (ie. false within the designer).

Instead, use the following, it'll save a lot of pain:

// If this returns NULL, we're in DesignMode.
if ( System.Reflecti on.Assembly.Get EntryAssembly() == null )
{
// We're in DesignMode.
}

Get into the habit of using this, and NOT the DesignMode property.

An alternative is to check the name of the entry assembly. If you're in
VS.NET, this will return [devenv.exe]. I prefer the above.

If you think this is suspect, do a quick check on Google, there are some
postings out there on the topic.

Sean

[Eric Cadwell]

Re: How can I make a code in an event not execute in design time

> Hold on, DesignMode isn't reliable.

I can vouch for DesignMode not being accurate, but I thought it was based on
me trying to use it in the Control's constructor.

The docs also state the following:
'The design mode indicator is stored in the ISite; therefore, if the
Component does not have an ISite associated with it, this property is always
false.'

-Eric

[Lucas Sain]

Re: How can I make a code in an event not execute in design time

Sean,

Thanks will use your sugestion instead.

Regards
Lucas
"Sean J Donovan" <sdonovan_uk@ya hoo.com> wrote in message
news:OYVwL7MnDH A.976@tk2msftng p13.phx.gbl...[color=blue]
> Lucas Sain wrote:[color=green]
> > Hi,
> > How can I make a code in an event not execute in design time. I have[/color][/color]
a[color=blue][color=green]
> > Baseform that has X code in the event "VisibleChanged ". All my forms
> > inherit from this form. The code in this event always gets executed in
> > design time, how do I avoid this??
> >
> > Regards
> > Lucas
> >
> >[/color]
>
> Hold on, DesignMode isn't reliable.
>
> If you have a component within a component, the DesignMode property on
> the embedded component is **always** wrong (ie. false within the[/color]
designer).[color=blue]
>
> Instead, use the following, it'll save a lot of pain:
>
> // If this returns NULL, we're in DesignMode.
> if ( System.Reflecti on.Assembly.Get EntryAssembly() == null )
> {
> // We're in DesignMode.
> }
>
> Get into the habit of using this, and NOT the DesignMode property.
>
> An alternative is to check the name of the entry assembly. If you're in
> VS.NET, this will return [devenv.exe]. I prefer the above.
>
> If you think this is suspect, do a quick check on Google, there are some
> postings out there on the topic.
>
> Sean
>[/color]