Need help with System.Windows.Forms.Timer

**Will Pittenger** · Nov 16 '05, 01:26 AM

Re: Need help with System.Windows. Forms.Timer

I believe that class needs a window. It is based on the standard Win32
timers. Try using System.Timers.T imer instead. I may be more familiar with
C++ than C#, but I do not see a window in the code you listed.

----------
Will Pittenger
E-Mail: mailto:will.pit tenger@verizon. net
All mail filtered by Qurb (www.qurb.com)
"Bilo" <justler123@yah oo.com> wrote in message
news:OiY7%23pnI EHA.3508@TK2MSF TNGP09.phx.gbl. ..[color=blue]
> I have a Windows Forms Class MainGUI
> I have declared
> MainGUI maingui;
> public System.Componen tModel.Containe r components = new Container();
> in the Class
>
> I call another class MediaDriver with the Constructor
>
> class MediaDriver
> {
> ....
> Form maingui;
> private System.Windows. Forms.TrackBar trackBar1;
> private System.Windows. Forms.Timer timer1;
> ....
> public MediaDriver(Lab el label1 , TrackBar trackBar1 , Form maingui)
> {
> ....
> this.timer1 = new
> System.Windows. Forms.Timer(thi s.maingui.compo nents);
> this.timer1.Ena bled = true;
> this.timer1.Tic k += new System.EventHan dler(this.timer 1_Tick);
> ....
> }
> But i get an error
> 'System.Windows .Forms.Form' does not contain a definition for 'components'
>
> How can I solve this? How can I add a Timer for the MainGUI form in the
> Class MediaDriver?[/color]

**Bilo** · Nov 16 '05, 01:26 AM

Re: Need help with System.Windows. Forms.Timer

The class MainGUI in a windows Form. Have only paste the needed parts.
public class MainGUI : System.Windows. Forms.Form

{
private System.Componen tModel.Containe r components = null;
Maingui maingui;
MediaDriver mediadriver;
.....
// HERE ARE ALL LABELS; BUTTONS and so on which are in the form
///

than I have somewhere a button event

private void file_button_Cli ck(object sender, System.EventArg s e)
{
if (mediadriver == null)
mediadriver = new MediaDriver(lab el1, trackBar1, maingui);
maingui.mediadr iver.open_media ();
}

}

class MediaDriver
{
....
Form maingui;
private System.Windows. Forms.TrackBar trackBar1;
private System.Windows. Forms.Timer timer1;
....
public MediaDriver(Lab el label1 , TrackBar trackBar1 , Form maingui)
{
....
this.timer1 = new
System.Windows. Forms.Timer(thi s.maingui.compo nents);
this.timer1.Ena bled = true;
this.timer1.Tic k += new System.EventHan dler(this.timer 1_Tick);
....
}

....
//Here comes the other Methods
.....
}

It would work when I declare "MainGUI maingui" instead of "Form maingui" in
Class MediaDriver and change
Constructor to public MediaDriver(Lab el label1 , TrackBar trackBar1 ,
MainGUI maingui)

But the problem is that Class MediaDriver will be a DLL and someone could
use this DLL from a class
XYZ and than there would be no definition for MainGUI
"Will Pittenger" <will.pittenger @verizon.net> schrieb im Newsbeitrag
news:e2worznIEH A.1048@TK2MSFTN GP12.phx.gbl...[color=blue]
> I believe that class needs a window. It is based on the standard Win32
> timers. Try using System.Timers.T imer instead. I may be more familiar[/color]
with[color=blue]
> C++ than C#, but I do not see a window in the code you listed.
>
> ----------
> Will Pittenger
> E-Mail: mailto:will.pit tenger@verizon. net
> All mail filtered by Qurb (www.qurb.com)
> "Bilo" <justler123@yah oo.com> wrote in message
> news:OiY7%23pnI EHA.3508@TK2MSF TNGP09.phx.gbl. ..[color=green]
> > I have a Windows Forms Class MainGUI
> > I have declared
> > MainGUI maingui;
> > public System.Componen tModel.Containe r components = new Container();
> > in the Class
> >
> > I call another class MediaDriver with the Constructor
> >
> > class MediaDriver
> > {
> > ....
> > Form maingui;
> > private System.Windows. Forms.TrackBar trackBar1;
> > private System.Windows. Forms.Timer timer1;
> > ....
> > public MediaDriver(Lab el label1 , TrackBar trackBar1 , Form maingui)
> > {
> > ....
> > this.timer1 = new
> > System.Windows. Forms.Timer(thi s.maingui.compo nents);
> > this.timer1.Ena bled = true;
> > this.timer1.Tic k += new[/color][/color]
System.EventHan dler(this.timer 1_Tick);[color=blue][color=green]
> > ....
> > }
> > But i get an error
> > 'System.Windows .Forms.Form' does not contain a definition for[/color][/color]
'components'[color=blue][color=green]
> >
> > How can I solve this? How can I add a Timer for the MainGUI form in the
> > Class MediaDriver?[/color]
>
>[/color]

**Will Pittenger** · Nov 16 '05, 01:27 AM

Re: Need help with System.Windows. Forms.Timer

Then you may need someone better with C# and .NET than I am. All I can
suggest now is putting the timer in the form. Did you attempt to use the
other class? It works whether or not you have a form, container, or
anything else.

----------
Will Pittenger
E-Mail: mailto:will.pit tenger@verizon. net
All mail filtered by Qurb (www.qurb.com)
"Bilo" <justler123@yah oo.com> wrote in message
news:eSXS78nIEH A.2656@TK2MSFTN GP11.phx.gbl...[color=blue]
> The class MainGUI in a windows Form. Have only paste the needed parts.
> public class MainGUI : System.Windows. Forms.Form
>
> {
> private System.Componen tModel.Containe r components = null;
> Maingui maingui;
> MediaDriver mediadriver;
> .....
> // HERE ARE ALL LABELS; BUTTONS and so on which are in the form
> ///
>
> than I have somewhere a button event
>
> private void file_button_Cli ck(object sender, System.EventArg s e)
> {
> if (mediadriver == null)
> mediadriver = new MediaDriver(lab el1, trackBar1, maingui);
> maingui.mediadr iver.open_media ();
> }
>
> }
>
> class MediaDriver
> {
> ....
> Form maingui;
> private System.Windows. Forms.TrackBar trackBar1;
> private System.Windows. Forms.Timer timer1;
> ....
> public MediaDriver(Lab el label1 , TrackBar trackBar1 , Form maingui)
> {
> ....
> this.timer1 = new
> System.Windows. Forms.Timer(thi s.maingui.compo nents);
> this.timer1.Ena bled = true;
> this.timer1.Tic k += new System.EventHan dler(this.timer 1_Tick);
> ....
> }
>
> ....
> //Here comes the other Methods
> ....
> }
>
> It would work when I declare "MainGUI maingui" instead of "Form maingui"[/color]
in[color=blue]
> Class MediaDriver and change
> Constructor to public MediaDriver(Lab el label1 , TrackBar trackBar1 ,
> MainGUI maingui)
>
> But the problem is that Class MediaDriver will be a DLL and someone could
> use this DLL from a class
> XYZ and than there would be no definition for MainGUI
> "Will Pittenger" <will.pittenger @verizon.net> schrieb im Newsbeitrag
> news:e2worznIEH A.1048@TK2MSFTN GP12.phx.gbl...[color=green]
> > I believe that class needs a window. It is based on the standard Win32
> > timers. Try using System.Timers.T imer instead. I may be more familiar[/color]
> with[color=green]
> > C++ than C#, but I do not see a window in the code you listed.
> >
> > ----------
> > Will Pittenger
> > E-Mail: mailto:will.pit tenger@verizon. net
> > All mail filtered by Qurb (www.qurb.com)
> > "Bilo" <justler123@yah oo.com> wrote in message
> > news:OiY7%23pnI EHA.3508@TK2MSF TNGP09.phx.gbl. ..[color=darkred]
> > > I have a Windows Forms Class MainGUI
> > > I have declared
> > > MainGUI maingui;
> > > public System.Componen tModel.Containe r components = new Container();
> > > in the Class
> > >
> > > I call another class MediaDriver with the Constructor
> > >
> > > class MediaDriver
> > > {
> > > ....
> > > Form maingui;
> > > private System.Windows. Forms.TrackBar trackBar1;
> > > private System.Windows. Forms.Timer timer1;
> > > ....
> > > public MediaDriver(Lab el label1 , TrackBar trackBar1 , Form[/color][/color][/color]
maingui)[color=blue][color=green][color=darkred]
> > > {
> > > ....
> > > this.timer1 = new
> > > System.Windows. Forms.Timer(thi s.maingui.compo nents);
> > > this.timer1.Ena bled = true;
> > > this.timer1.Tic k += new[/color][/color]
> System.EventHan dler(this.timer 1_Tick);[color=green][color=darkred]
> > > ....
> > > }
> > > But i get an error
> > > 'System.Windows .Forms.Form' does not contain a definition for[/color][/color]
> 'components'[color=green][color=darkred]
> > >
> > > How can I solve this? How can I add a Timer for the MainGUI form in[/color][/color][/color]
the[color=blue][color=green][color=darkred]
> > > Class MediaDriver?[/color]
> >
> >[/color]
>
>[/color]

**mikeb** · Nov 16 '05, 01:27 AM

Re: Need help with System.Windows. Forms.Timer

Bilo wrote:[color=blue]
> The class MainGUI in a windows Form. Have only paste the needed parts.
> public class MainGUI : System.Windows. Forms.Form
>
> {
> private System.Componen tModel.Containe r components = null;
> Maingui maingui;
> MediaDriver mediadriver;
> .....
> // HERE ARE ALL LABELS; BUTTONS and so on which are in the form
> ///
>
> than I have somewhere a button event
>
> private void file_button_Cli ck(object sender, System.EventArg s e)
> {
> if (mediadriver == null)
> mediadriver = new MediaDriver(lab el1, trackBar1, maingui);
> maingui.mediadr iver.open_media ();
> }
>
> }
>
> class MediaDriver
> {
> ....
> Form maingui;
> private System.Windows. Forms.TrackBar trackBar1;
> private System.Windows. Forms.Timer timer1;
> ....
> public MediaDriver(Lab el label1 , TrackBar trackBar1 , Form maingui)
> {
> ....
> this.timer1 = new
> System.Windows. Forms.Timer(thi s.maingui.compo nents);
> this.timer1.Ena bled = true;
> this.timer1.Tic k += new System.EventHan dler(this.timer 1_Tick);
> ....
> }
>
> ....
> //Here comes the other Methods
> ....
> }
>
> It would work when I declare "MainGUI maingui" instead of "Form maingui" in
> Class MediaDriver and change
> Constructor to public MediaDriver(Lab el label1 , TrackBar trackBar1 ,
> MainGUI maingui)
>
> But the problem is that Class MediaDriver will be a DLL and someone could
> use this DLL from a class
> XYZ and than there would be no definition for MainGUI[/color]

Since the components field is part of the MainGUI GUI class (and not
Form), what do you want:

System.Windows. Forms.Timer(thi s.maingui.compo nents);

to do if a non-MainGUI Form is passed into the MediaDriver constructor?

If you want the timer to be skipped if MediaDriver's maingui is not a
MainGUI object, then you could code something like:

MainGUI x = maingui as MainGUI;
if (x != null) {
this.timer1 = new
System.Windows. Forms.Timer( x.components);
this.timer1.Ena bled = true;
this.timer1.Tic k += new System.EventHan dler(this.timer 1_Tick);
}

but, I suspect that you need to think through what should really happen
in this case.

Also, unless there's a typo in your example, I don't see how this would
compile anyway, since the MainGUI.compone nts field is private.

--
mikeb

Need help with System.Windows.Forms.Timer

Need help with System.Windows.Forms.Timer

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