Re: Start new thread - C# Discussion Boards

Howto Start a form in a thread and get access to it's variables

Ariadne13-Aug-07 21:19

13-Aug-07 21:19

Hi,
is there a description (or sample code) how to start in a form frmA a second form frmB in a thread and get access in frmA to the variables in the thread of frmB?
Hope the question is clear...
Thanks
Andreas

Ariadne

Re: Howto Start a form in a thread and get access to it's variables

Martin#13-Aug-07 21:39

Martin#

13-Aug-07 21:39

Hello,

Sounds like the funktionality of a Splash screen[^]!

Summary:

Ariadne wrote:
how to start in a form frmA a second form frmB in a thread

Thread InstanceCaller = new Thread(new ThreadStart(MySplashThreadFunc));
InstanceCaller.Start();

private static void MySplashThreadFunc()
{
    m_instance = new SplashForm(m_imageFile, m_transColor);
    m_instance.TopMost = false;
    m_instance.ShowDialog();
}

Ariadne wrote:
get access in frmA to the variables in the thread of frmB

Use delegates!
Colin's article (passing values between forms)[^]

If you whant to modify your GUI over an other thread:
Don't forget to use InvokeRequired and Invoke!

Hope it helps!

All the best,

Martin

Re: Howto Start a form in a thread and get access to it's variables

N a v a n e e t h13-Aug-07 23:00

N a v a n e e t h

13-Aug-07 23:00

As usual excellent post.. Cool | :cool:

My Website | Ask smart questions

Re: Howto Start a form in a thread and get access to it's variables

Martin#13-Aug-07 23:04

Martin#

13-Aug-07 23:04

Thanks a lot!

All the best,

Martin

Re: Howto Start a form in a thread and get access to it's variables

Ariadne14-Aug-07 2:43

Ariadne

14-Aug-07 2:43

Martin,
thanks! It works.
But unfortunatly it solves not my problem: If I debug the frmA, the timer in frmB stops also. Is there a way to exclude frmB from debugging?
Or have I to use a separate application frmB and use interprocess data exchange to get the data from frmB. (frmB collects temperatures, and frmA reads them from frmB)

Ariadne

Re: Howto Start a form in a thread and get access to it's variables

Martin#14-Aug-07 2:54

Martin#

14-Aug-07 2:54

Hello,

Ariadne wrote:
If I debug the frmA, the timer in frmB stops also. Is there a way to exclude frmB from debugging?

Hmmm, interesting task!

What kind of timer are you using?
Maybe take a look at System.Threading or System.Timers. Timer!

But I have to admit that this is without knowing something about debug behaviour!
Maybe you should start a new thread with this specific question.
I'm sure the MVP cracks or for example Luc (but also others), know more about this topic.

Hope it helps!

All the best,

Martin

Start new thread

Ariadne14-Aug-07 3:27

Ariadne

14-Aug-07 3:27

Thanks.

Martin# wrote:
Maybe you should start a new thread with this specific question.

Yes I did so...

Ariadne

Re: Start new thread

Martin#14-Aug-07 3:33

Martin#

14-Aug-07 3:33

Ok,

But you should really, try the approach with an other timer, which is not running in the GUI thread (Forms.Timer does run in GUI thread)

All the best,

Martin

Fonts In PDF

Belju Paul13-Aug-07 20:54

Belju Paul

13-Aug-07 20:54

I am creating pdf file from my application software. I know the syntax for using Fonts in pdf. But my problem is, there are some keywords like "/FirstChar, /LastChar, /Widths, /FontDescriptor, /Encoding" how can findout these details from a font file(insttalled in my computer)/from my computer?

Belju Paul

Text changed property

Ravi Shankar4313-Aug-07 20:44

Ravi Shankar43

13-Aug-07 20:44

If i leave textbox i.e focus i have do some functionality that do necessary things in some other controls.

For Ex:if i leave focus on text box i have to get some text on another text box.
For this iam writing in textchanged event?iam not getting.

i think we have to write code in leavefocus ?

plz clarify and give some code.

Thanks in Advance

Ravi Shankar

Re: Text changed property

Christian Graus13-Aug-07 20:53

Christian Graus

13-Aug-07 20:53

It sounds like you want the Leave event, yes.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: Text changed property

Ravi Shankar4313-Aug-07 21:17

Ravi Shankar43

13-Aug-07 21:17

But i dont find leave event here.Iam developing a project in Asp.net using C#.

Ravi Shankar

crystal Report Problem

help as an alias13-Aug-07 20:40

help as an alias

13-Aug-07 20:40

does we need to insall Crystal report on client system when we r using crystal reporting in our project?

Nikesh Kr. Yadav

Programing is easy in .Net

How to know what is the return type of VARIANT ?? [modified]

Yanshof13-Aug-07 19:35

Yanshof

13-Aug-07 19:35

I have some old com class that return to me VARIANT as string or as int.

How can i use it in C#? what i mean is how can i know if the type is int or String ?

I know that i can do it like this

_Variant.GetType().FullName.CompareTo( "System.String" )

But is there is some other/effective way to do it ?

Thanks for any help.

-- modified at 1:40 Tuesday 14th August, 2007

Re: How to know what is the return type of VARIANT ??

blakey40413-Aug-07 21:39

blakey404

13-Aug-07 21:39

have you tried typeof(VARIANT) not sure it will work in this situation but worth a try

Re: How to know what is the return type of VARIANT ??

Yanshof13-Aug-07 22:44

Yanshof

13-Aug-07 22:44

Its not working - is there is other way ?

Re: How to know what is the return type of VARIANT ??

Pete O'Hanlon13-Aug-07 22:57

Pete O'Hanlon

13-Aug-07 22:57

Could you use the is keyword?

if (_Variant is int)
{
}

Deja View - the feeling that you've seen this post before.

PrintDocument Class:

T.RATHA KRISHNAN13-Aug-07 19:25

T.RATHA KRISHNAN

13-Aug-07 19:25

I am using Visual Studio 2003. I have to create an object of PrintDocument Class(in C#) at RunTime. But I'm not able to add.
When I am typing the following line, after the new word there is no Description provided for the PrintDocument() class.

PrintDocument printDocument1 = new PrintDocument();

How can I add this PrintDocument class's object at RunTime?

HOW Autometic send SMS through API

Mukesh Kumar Singh13-Aug-07 19:15

Mukesh Kumar Singh

13-Aug-07 19:15

I have one API url ..

http://***.***.***.***:**/login/pushsms.php?login=ABC&pass=con***&mob_no=**********&text=*****

I have one table name tbl_promoter in this table one field is 'TL_name', 'TL_Mobile_number' and 'date' ....this table autometic update by listener.
i want to do send autometic sms on TL_mobile_number daily morning 10 AM with previous day status ...by api url...which is given above ...

mean i want......... how i will pass two parameter mobile number and text ...dynamic by sql table ....

Mukesh kumar Singh

Design Notepad with Forms

pioneer_missile13-Aug-07 18:49

pioneer_missile

13-Aug-07 18:49

Hi, i design Notepad with Forms (in Windows Application ) ,but How can I design Find Menu (in Edit Menu) with Forms?
Thank you for your attention.
Nazli

thank you nazli jahani

Re: Design Notepad with Forms

N a r e s h P a t e l13-Aug-07 19:21

N a r e s h P a t e l

13-Aug-07 19:21

Here you can design just the form like the find window.....
Here you can also use the InputBox if you does not want to give extra facilities like Search Up, Down, Search Case Sansitive etc...

Naresh Patel

Re: Design Notepad with Forms

Michael Sync13-Aug-07 19:48

Michael Sync

13-Aug-07 19:48

OR
If you don't like the appearance of default InputBox, you may create small form that can acks like Find dialog..

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

If you want to thank me for my help, please vote my message by clicking one of numbers beside "Rate this message". Why vote? Plz Read it here. Thank you.

Re: Design Notepad with Forms

help as an alias13-Aug-07 21:40

help as an alias

13-Aug-07 21:40

you can try this give some idea to you

http://msdn2.microsoft.com/EN-US/library/aa905339.aspx[^]

help as a alias.
Be happy and make others happy.Cheer up...........

TreeView Control problem

Adrian Soon13-Aug-07 17:27

Adrian Soon

13-Aug-07 17:27

Hi All,

I working on my treeView.
I had a treeView with both CheckBox and Expandlist.

I had a "NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)" method.

inside the method I wish to know whether I click on is a checkbox or the expand + button.

how can I do it?

Re: TreeView Control problem

Luc Pattyn13-Aug-07 17:46

Luc Pattyn

13-Aug-07 17:46

Have a look at TreeView.HitTest() and in particular its Location property.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

this weeks tips:
- make Visual display line numbers: Tools/Options/TextEditor/...
- show exceptions with ToString() to see all information
- before you ask a question here, search CodeProject, then Google

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.