Comments by Elman90 - CodeProject

Elman90 20-Dec-11 12:22pm View

yes i got to that conclusion myself too.
Thx

Elman90 5-Dec-11 7:45am View

Deleted

John, i d like to ask another question if it isnt a bother for you, i see from ur profile that u are experienced, and i d like an opinion. I am a graduating cpu engineering student, and i d like to dive myself in microsoft environment software development for now. i have been studying and intend to continue studying WPF, Silverligt and .Net apps overall. I have been reading lately that with this new outcome in this "Metro Style" apps of windows 8, WPF and Silverlight are been downlayered (not sure if that is entirely true). So, in your opinion, is it worth for me to learn how to practice WPF enviroment of programming now, or should i start some other topic.

Elman90 5-Dec-11 7:33am View

Web server unavailable, the link is incorrect i presume. I have tried amazon ,searchin for either "Windows 8" or "Metro application" , but didnt find anything on the topic...

Elman90 14-Nov-11 16:35pm View

And YES i HAVE confirmed fully with a breakpoint that the event gets the correct handler at that point, but it becomes null later, even if i never invoke it, strange

Elman90 14-Nov-11 16:33pm View

Ok so i created an event to try.

private void dataGrid1_PreviewMouseRightButtonDown_1(object sender, MouseButtonEventArgs e)
{
datagridMouseClick(sender, e);
}

This handles the right mouse click. I added a breakpoint to the line

search.datagridMouseClick += new MouseButtonEventHandler(search_datagridMouseClick);
So. before entering to this line the datagridMouseClick is null, after it, it gets its correct value ,(and the program keeps running normally) but then, When i use right click to get to the handler above,judgin from the breakpoint the datagridMouseClick is null (???) .

Elman90 14-Nov-11 16:20pm View

Yes i have tried that. The breakpoint hits inside the (search_datagridMouseClick) actually that code works ok till it gets to fire the event. Actually the exception gets generated inside that. When it arrives to this.datagridMouseClick(sender, e);
Generates a NullReferenceException, I have also tried deleting all tho other code except this line and gives the same error. (But the event should be already be subscribed by the search.datagridMouseClick += new MouseButtonEventHandler(search_datagridMouseClick) at this point)

Elman90 14-Nov-11 15:53pm View

I didnt put too much info thinking was just something easy that i was missing. will update the question to be a little more clear

Elman90 14-Nov-11 15:51pm View

I think i used the wrong word, will update the question to clear the doubts.

Elman90 14-Nov-11 10:57am View

I understand, but the event handler i want to subscribe is in another project. And if i assign a handler to this event in this class, the other eventhandler in the other class is nt executed

Elman90 14-Nov-11 10:26am View

Hmm i think the problem here is that the listener is in another project since this is a .dll, but with another event this mothod worked, hmmm... how can i fire an event to be heard from another class/project

Elman90 14-Nov-11 8:27am View

This method has worked when i had a routed event fired exactly the same way ,,,

Elman90 14-Nov-11 8:26am View

hmm all i do in the other Project is
search.datagridMouseClick += new MouseButtonEventHandler(search_datagridMouseClick);
void search_datagridMouseClick(object sender, MouseButtonEventArgs e)
{
....
}
Where search is the object name that contains this code, i dont have much exp on events , so any help d be appreciated

Elman90 14-Nov-11 8:15am View

and the event WILL be listened in another class, i cant post the ENTIRE code here, , its smth like 10 k lines,, but trust in the other class i take that public event from my usercontrol and assign it to another function, the only prob here is that it is null, i have used this method before and HAS worked perfectly. Can ANYONE help or have any idea on that?

Elman90 14-Nov-11 8:13am View

I dont quite understand

Elman90 14-Nov-11 8:12am View

I know that, it was originally on the code and i took it off. But thats not the point! By using it that way the event would never be fired, cause its always started at null, i need smthing to initialize the event...

Elman90 14-Nov-11 7:26am View

At the breakpoint it says its value is null and type System.Input...MouseButtonEventHandler, nothing else

Elman90 14-Nov-11 6:59am View

hello i build this code in an external dll, and i am debugging another application, so cant use breakpoints on this (as far as i know).

Elman90 14-Nov-11 6:54am View

Yes i have tried that but that way the event is not fired, since the event is started at null.. I have used the same identical method with a public RoutedEventHandler and worked perfectly, so dont quite get what is the prob here

Elman90 14-Nov-11 6:47am View

Yes u r right on that, but its not the point. The event doesnt use dep to be fired, i have even tried to cancel all the code above and leave only "this.datagridMouseClick(sender,e)" and still gives me the exception

Elman90 21-Oct-11 11:31am View

Thanks! Havent tried but that must be it.
Best Regards man ;)

Elman90 21-Oct-11 11:22am View

Thaknks for the reply, but thats basically what i wrote, (the only diff is ExecuteScalar() instead of ExecuteNonQuery() ) Still i tried that too to be sure, Doesnt work. BTW its a WPF application,, if that makes a difference

Elman90 16-Oct-11 15:11pm View

Deleted

Reason for my vote of 5
A very useful Style, i used it for my program and i like
it

Comments by Elman90 (Top 22 by date)