C# Discussion Boards - CodeProject

Re: how to Systemtray notification

stancrm3-Jul-06 1:32

stancrm

3-Jul-06 1:32

Use "NotifyIcon". Just give an icon and text in it.

Re: how to Systemtray notification

foysal mamun3-Jul-06 2:01

foysal mamun

3-Jul-06 2:01

thanks u.i want that it can auto notify by birthday.

Re: how to Systemtray notification

stancrm3-Jul-06 2:26

stancrm

3-Jul-06 2:26

Then you must have a checking function 1 time / day. If birthday == DateTime.Now, then show notifyIcon.

Re: how to Systemtray notification

foysal mamun3-Jul-06 22:24

foysal mamun

3-Jul-06 22:24

sorry, i forgate to tell u that, my program is not run all time.. so how it possible.help me.

Re: how to Systemtray notification

stancrm3-Jul-06 22:35

stancrm

3-Jul-06 22:35

If your program is not running, then it is impossible to show notify icon. Just like outlook. If your outlook not running, then you cannot get message whether you get a new message or not.

Re: how to Systemtray notification

foysal mamun4-Jul-06 19:10

foysal mamun

4-Jul-06 19:10

how can i run a process when windows is start.thank for help.

Re: how to Systemtray notification

stancrm4-Jul-06 19:50

stancrm

4-Jul-06 19:50

Use System.Diagnostics.Process.Start(string filename);
for example : System.Diagnostics.Process.Start(@"C:\WINNT\NOTEPAD.EXE");

Re: how to Systemtray notification

lifo.net4-Jul-06 20:29

lifo.net

4-Jul-06 20:29

sorry here windows means operating system. so how can i run my program when os start.thanks.

Re: how to Systemtray notification

stancrm4-Jul-06 21:02

stancrm

4-Jul-06 21:02

You must copy your application to this directory :
C:\Documents and Settings\All Users\Start Menu\Programs\Startup

That directory is for all users. If you want to specific user only, then you must change "All User" to other user, for example (MyAccount):
C:\Documents and Settings\MyAccount\Start Menu\Programs\Startup

Re: how to Systemtray notification

foysal mamun4-Jul-06 21:27

foysal mamun

4-Jul-06 21:27

can i use windows service for that.thankxs.

Re: how to Systemtray notification

foysal mamun4-Jul-06 21:27

foysal mamun

4-Jul-06 21:27

can i use windows service for that than how. thanks.

Re: how to Systemtray notification

stancrm4-Jul-06 22:51

stancrm

4-Jul-06 22:51

It depends on your application. If you application is a service, then you must install it in services, set to automatic, then if you start your windows, it will be started automatically.
But I don't know how to install a service. Sorry.

Re: how to Systemtray notification

foysal mamun5-Jul-06 1:07

foysal mamun

5-Jul-06 1:07

thanks a lot.he happy.

Re: how to Systemtray notification

Tarakeshwar Reddy3-Jul-06 1:44

Tarakeshwar Reddy

3-Jul-06 1:44

You could have a look at this article. Tray Icon[^]

Tarakeshwar
MCP, CCIE Q(R&S)

Before you criticize someone, you should walk a mile in their shoes. That way, when you criticize them, you're a mile away and you have their shoes.

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Check presence of event handler attached to base class event

jjansen3-Jul-06 0:28

jjansen

3-Jul-06 0:28

I want to allow a user of my user control to overrule the default painting of my control through a Paint event handler. I was thinking along the lines of...

protected override void OnPaint(PaintEventArgs e)<br />
{<br />
   if (this.Paint != null) // won't work; no access<br />
      base.OnPaint(e);<br />
   else<br />
      this.MyDefaultPainting(e);<br />
}

This doesn't work because the Paint event belongs to the base class and my derived class can't access it (as far as I know). I don't want to create another drawing event next to the Paint event and I don't want a construction that to forces an override of MyDefaultPainting either. More importantly, I don't want my default drawing done in the first Paint event handler in line that may be followed by the user's to prevent redundant painting.

So, is there a way to see whether or not an event handler is attached to an event that is defined in a base class?

Re: Check presence of event handler attached to base class event

Martin#3-Jul-06 0:48

Martin#

3-Jul-06 0:48

if(base.Paint!=null) //should work

All the best,

Martin

Re: Check presence of event handler attached to base class event

jjansen3-Jul-06 1:06

jjansen

3-Jul-06 1:06

Nope. Same problem as if (this.Paint != null)
Thanks for the reply, though.

Re: Check presence of event handler attached to base class event

Martin#3-Jul-06 1:17

Martin#

3-Jul-06 1:17

Can you tell me more about your constilation of the UserControl?
Does the base UserControl also override the OnPaint?
....

Re: Check presence of event handler attached to base class event

jjansen3-Jul-06 1:28

jjansen

3-Jul-06 1:28

No, it doesn't. My control is the first to override this method.

Re: Check presence of event handler attached to base class event

Martin#3-Jul-06 1:47

Martin#

3-Jul-06 1:47

Just for testing:
Have you tried to put the code in your base class?

Re: Check presence of event handler attached to base class event

jjansen3-Jul-06 1:50

jjansen

3-Jul-06 1:50

I can't, it isn't mine. The base class is UserControl.

Re: Check presence of event handler attached to base class event

J4amieC3-Jul-06 1:08

J4amieC

3-Jul-06 1:08

Have you tried this.Paint.GetInvokationList()

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Re: Check presence of event handler attached to base class event

jjansen3-Jul-06 1:11

jjansen

3-Jul-06 1:11

Same problem: not allowed. The event-wrapper prevents me from doing anything but adding or removing an event handler.

Re: Check presence of event handler attached to base class event [modified]

Josh Smith3-Jul-06 4:18

Josh Smith

3-Jul-06 4:18

Use a little reflection to get the field which represents the Paint event, then (from within your control) access the protected Events property. Pass in the event field id and check if it returns null or not.

FieldInfo fi = typeof(Control).GetField( "EventPaint", BindingFlags.Static | BindingFlags.NonPublic );
object eventPaint = fi.GetValue( this );

this.Paint += new PaintEventHandler(Form1_Paint);
if( base.Events[eventPaint] == null )
{
	Debug.WriteLine( "No handlers attached to the Paint event." );
}
else
{
	Debug.WriteLine( "One or more handler is attached to the Paint event." );
}

:josh:
My WPF Blog[^]

Re: Check presence of event handler attached to base class event

jjansen3-Jul-06 20:05

jjansen

3-Jul-06 20:05

Josh Smith wrote:
Use a little reflection to get the field which represents the Paint event, then (from within your control) access the protected Events property.

This is exactly what I need! I knew of the Events property but didn't know where to get the key to retrieve the right event. Thanks, Josh.

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