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Great Zoltan!
Question answered.
regards,
George
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I have two threads, one UI thread and one Background thread..
I want to keep a track of the background thread so that I may kill my UI thread (a tray icon) when the background thread has finished...
Please keep in mind mine is a console application.
Please review my code for more details..
class Program
{
static void Main(string[] args)
{
Thread[] threads = new Thread[2];
threads[0] = new Thread(new ThreadStart(UIMethod));
threads[1] = new Thread(new ThreadStart(BackGroundMethod));
threads[0].SetApartmentState(ApartmentState.STA);
threads[0].Start();
threads[1].Start();
}
public static void UIMethod()
{
Tray obj = new Tray();
obj.GenerateTrayIcon();
Application.Run();
}
public static void BackGroundMethod()
{
}
}
Any suggestions with some code would be highly appreciated..
Thanks.
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Either call Join() on the threads, or use signalling with WaitHandles.
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I dont know about them..
Could you post some sample code with respect to the code in my original code?
Thanks.
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Ok
Thread[] threads = new Thread[2];
threads[0] = new Thread(new ThreadStart(UIMethod));
threads[1] = new Thread(new ThreadStart(BackGroundMethod));
threads[0].SetApartmentState(ApartmentState.STA);
threads[0].Start();
threads[1].Start();
threads[1].Join();
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But this dosent server the purpose..
The UI thread still is waiting for user response although the background thread has finished.
I want to kill the UI thread when the background thread has finished executing..
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When you call Join() on the thread which executes background method, the current thread will be blocked until background method finishes executing. Just down to the Join() call, you can write code to kill the other one or kills the icon.
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If your goal is to have the user-interface thread run normally until the background thread dies, I would suggest having a 'quitNow' variable which is set by the background thread and polled in the main thread. The simplest approach to accomplishing that would be to have a timer that checks the 'quitNow' variable every 100ms or so. If you want to avoid the CPU overhead of doing that, you might be able to have the the timer disabled until the background thread enables it to signal its completion. I'm not sure if timer.enabled can be accessed between threads, though. If it can't, you may have to do something like:
Sub EnableKillMeTimer
If InvokeRequired then
BeginInvoke(New MethodInvoker(AddressOf EnableKillMeTimer))
Else
tmrKillMe.Enabled = True
Endif
End Sub While an approach like the above could probably be used to have the main form execute me.close, using a timer could make things a little nicer in case the main form doesn't want to close quite instantly.
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Hey,
I have a Word 2003 Plug-in written in VS 2008.
In the plug-in startup method I create a button (or find it if it's already made) and assign an eventhandler to it:
m_SaveButton.Click += new Microsoft.Office.Core._CommandBarButtonEvents_ClickEventHandler(SaveDoc_Click);
m_SaveButton is a global variable (Office.CommandBarButton m_SaveButton; )
Everything works fine until I have opened a document, then the eventhandlers for my button is not called anymore.
Any idea what's going on?
- Anders
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Suppose we got the following code snippet:
var a = new {i=1, j=2};
How to assign a value for the specific field of that variable? I mean, something like this:
a.i = 5;
thanks for help
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Yoyosch wrote: How to assign a value for the specific field of that variable?
You can't.
When you create an anonymous type the following code is generated:
private static void Main(string[] args)
{
var a;
a = new <>f__AnonymousType0<int, int>(1, 2);
return;
}
The special class <>f_AnonymousType0 looks like this:
[CompilerGenerated, DebuggerDisplay(@"\{ i = {i}, j = {j} }", Type="<Anonymous Type>")]
internal sealed class <>f__AnonymousType0<<i>j__TPar, <j>j__TPar>
{
[DebuggerBrowsable(0)]
private readonly <i>j__TPar <i>i__Field;
[DebuggerBrowsable(0)]
private readonly <j>j__TPar <j>i__Field;
[DebuggerHidden]
public <>f__AnonymousType0(<i>j__TPar i, <j>j__TPar j);
[DebuggerHidden]
public override bool Equals(object value);
[DebuggerHidden]
public override int GetHashCode();
[DebuggerHidden]
public override string ToString();
public <i>j__TPar i { get; }
public <j>j__TPar j { get; }
}
As you can see, there are no setters on any of those properties.
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Hello
i have used AxSHDocVw.AxWebBrowser in my application. i want to block popup windows for my code. How do i go about it.
i tried doing
private void axWebBrowser1_NewWindow2(object sender, AxSHDocVw.DWebBrowserEvents2_NewWindow2Event e)
{
e.ppDisp = null;
e.cancel = true;
}
But this is not helping
Can i get help over it?
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have you tried catching the NewWindow3 event?
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newWindow3 is used for Xp?
can i used in my code?
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static ISettings settings = null;
public static Categories Current
{
get
{
if (_categories == null)
{
LoadCategories();
}
return _categories;
}
}
private static void LoadCategories()
{
using (FileStream stream= settings.GetCategoryFileStream())
{
.....
}
} I am trying to test the Current property. It is calling LoadCategories method and this method is using an external file. So I am trying to mock the external file call. For doing this, I need to supply ISettings instance explicitly. How do I supply it in this scenario ?
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Your formatting is off - could you fix it so that I can see the rest of your message please?
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Pete O'Hanlon wrote: Your formatting is off
I can see that correctly. I have not pasted the entire code. Do you mean that ?
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Nope. I can see the message up until "So I am trying to mock the external file call" but you've got this enclosed in a code block section so it doesn't wrap.
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Ok- here is the continuation.
For doing this, I need to supply ISettings instance explicitly. How do I supply it in this scenario ? I had some reading on Singleton Dependency Injection[^], but looks like it won't help much.
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Why wouldn't you just set the dependency as a static property on the class?
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I know it will work. But each time I use Current property, I have to set the settings. I guess it is not a good design.
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What about something like this:
public static SingletonClass
{
private static ISettings _settings;
public static ISettings Settings {get; set;}
static SingletonClass()
{
_settings = new RealImplementationOfSettings();
}
}
What are you using for dependency injection (castle, structure map)?
Disclaimer: I am very new to TDD, I am sure on of the experts would probably tell you to do something completely different...
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Ok - looks good. I will give a try. Thanks
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