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  • How to stay connected to the programming community?

    - by Anton
    I often find myself detached from the programming community and I generally find out about all the "cool" things that are happening after they have already happened. So my question is how do you stay connected and up to date with the programming community? Podcasts, blogs, meet ups, conventions, twitter, talking with your co-workers whatever it may be that keeps you connected. Please provide actual examples of which blogs, talks, etc you use.

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  • Jquery Mobile app focus-based navigation stops working after switching between pages

    - by nawar
    As much as I would like to expand on the details here, I am not able to find relevant information about the root cause of this problem. I am having this issue with my blackberry Webapp which I built using JQM. After few times of navigation from page to page, the application becomes unresponsive on the destination page and I am not able to scroll up/down using the touchpad. If someone had this problem or some clue to the resolution, then that would be helpful. Edit: after doing some research I was able to narrow down the cause of the issue. I am having an issue with focus-based navigation. As I lose focus on the page elements (buttons, input fields, etc) after few transitions among the pages. Edit I had to switch back to the cursor based navigation as it is much faster and do not have the issue faced by focus-based navigation. I removed the entry: <rim:navigation mode=”focus”/> from the config.xml file I found this entry on the blackberry fourms but it haven't solved my problem despite the fact I upgraded my WebWorks SDK to 2.0 from 1.5 http://supportforums.blackberry.com/t5/Web-and-WebWorks-Development/Focus-based-navigation-hangs-device/td-p/455600 Thanks

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  • javascript error listener

    - by John Doe
    hi all i try using window.attachEvent (or addEventListener) to capture js errors my callback function gets only one event parameter my question is: how do i get line number and source file of the error from this event? the alternative usage window.onerror=callback; works but an event listener has other benefits thus im giving it a try

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  • Exited event of Process is not rised?

    - by Kanags.Net
    In my appliation,I am opening an excel sheet to show one of my Excel documents to the user.But before showing the excel I am saving it to a folder in my local machine which in fact will be used for showwing. While the user closes the application I wish to close the opened excel files and delete all the excel files which are present in my local folder.For this, in the logout event I have written code to close all the opened files like shown below, Process[] processes = Process.GetProcessesByName(fileType); foreach (Process p in processes) { IntPtr pFoundWindow = p.MainWindowHandle; if (p.MainWindowTitle.Contains(documentName)) { p.CloseMainWindow(); p.Exited += new EventHandler(p_Exited); } } And in the process exited event I wish to delete the excel file whose process is been exited like shown below void p_Exited(object sender, EventArgs e) { string file = strOriginalPath; if (File.Exists(file)) { //Pdf issue fix FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read); fs.Flush(); fs.Close(); fs.Dispose(); File.Delete(file); } } But the problem is this exited event is not called at all.On the other hand if I delete the file after closing the MainWindow of the process I am getting an exception "File already used by another process". Could any help me on how to achieve my objective or give me an reason why the process exited event is not being called?

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  • C#. Saving information about events and event handlers and removing handlers using this information

    - by Philipp
    I have an object which is creating several event handlers using lambda expressions, and I need to remove all handlers created in that object in one time. I'm trying to create some unified static object which will 'know' which handler relates to which object and event if event handler was created through this static object. I tried something like code below, but I don't understand how to save events and event handlers objects, to be able remove handlers in one time. class Program { static void Main(string[] args) { var EventSender = new EventSender(); var EventReceiver = new EventReceiver(EventSender); EventSender.Invoke(" some var "); LinkSaver.RemoveEvent(EventReceiver); // ?? Console.ReadKey(); } } public class ObjLink{ public object Event; public object Action; } public static class LinkSaver { public static void SetEvent<T>(object obj, Action<T> Event, T Action) { Event(Action); var objLink = new ObjLink{Event = Event, Action = Action}; if (!Links.ContainsKey(obj)) Links.Add(obj, new List<ObjLink>{objLink}); else Links[obj].Add(objLink); } static Dictionary<object,List<ObjLink>> Links = new Dictionary<object, List<ObjLink>>(); public static void RemoveEvent(object obj){ foreach(var objLink in Links[obj]){ // objLink.Event -= objLink.Action; ??? } } } public class EventReceiver { public EventReceiver(EventSender obj) { LinkSaver.SetEvent<EventSender.TestDelegate>(this, obj.SetEvent, str => Console.WriteLine(str + " test event!")); } } public class EventSender { public void Invoke(string var) { if (eventTest != null) eventTest(var); } public void SetEvent(TestDelegate Action) { eventTest += Action; } public delegate void TestDelegate(string var); private event TestDelegate eventTest; // by the way public void RemoveFromEvent() { foreach (var handler in eventTest.GetInvocationList()) eventTest -= (TestDelegate)handler; } }

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  • Looking for: nosql (redis/mongodb) based event logging for Django

    - by Parand
    I'm looking for a flexible event logging platform to store both pre-defined (username, ip address) and non-pre-defined (can be generated as needed by any piece of code) events for Django. I'm currently doing some of this with log files, but it ends up requiring various analysis scripts and ends up in a DB anyway, so I'm considering throwing it immediately into a nosql store such as MongoDB or Redis. The idea is to be easily able to query, for example, which ip address the user most commonly comes from, whether the user has ever performed some action, lookup the outcome for a specific event, etc. Is there something that already does this? If not, I'm thinking of this: The "event" is a dictionary attached to the request object. Middleware fills in various pieces (username, ip, sql timing), code fills in the rest as needed. After the request is served a post-request hook drops the event into mongodb/redis, normalizing various fields (eg. incrementing the username:ip address counter) and dropping the rest in as is. Words of wisdom / pointers to code that does some/all of this would be appreciated.

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  • Keeping the number of objects and event-listeners on stage as low as possible

    - by DevEight
    Hello. I am creating a site with lots of big scrollable text-boxes in it. Each text-box object contained some text, and two buttons to scroll up/down with. The scroll buttons each had an event listener so the text moved when you clicked them. These text-boxes were stacked on-top of each other with all except one having an alpha of 0. If I wanted to change which text-box is active I move it to the front and call a small TweenLite animation. To the left (outside of the text-box objects) I have an object similar to a menu. It also has about 12 or so event-listeners (one for every button). This turns out cause A LOT of lag an it's very troublesome for my laptop to run it. What I need help with doing is to reduce the number of event-listeners on the stage and also the amount of text-boxes. What I was thinking was to add the text-boxes using AS so I only have 1 on the stage at a time but I couldn't figure out how to do it. I also thought it might be better to just use 1 big event-listeners and from mouseX and mouseY decide which button the user is trying to push. Are there any better alternatives to this? And if so, please elaborate on how to do it.

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  • GUI programming, what to learn, already know console C++

    - by conqrr
    i have already learnt c++ console(love it!) and want to do gui programming, i have looked at Qt but i dont like the size of exe produced at all,even after compressing or static linking.... Shall i learn c# and gui programming?? is it easy to move from c++? what is dot net exactly by the way and how can it be useful to me and my CV in future??

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  • Best programming language for teaching econometrics?

    - by TJB
    I will be teaching an econometrics course to masters students in the fall. I think it is important for them to learn programming with data as an essential applied research skill. What suggestions do you have for the programming language. I am leaning mostly towards R. What others should I consider?

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  • Custom Control Events in C#

    - by pm_2
    I'm trying to create a custom control and need to raise an event from it. The idea is to raise an event at the end of the click event (OnAfterClick). I found one or two tutorials on doing this, but am clearly missing a step somewhere; I have the following. In the control: public class AfterClickEventArgs : EventArgs { ... } public partial class MyButton : CommandButton { public delegate void AfterClickEvnt(object sender, AfterClickEventArgs e); public event AfterClickUpdatedEvnt AfterClick; } protected override void OnClick(EventArgs e) { ... Processing here ... AfterClickEventArgs myArgs = new AfterClickEventArgs(); AfterClick(this, newArgs); } In the program using the control: In InitializeComponent(): this.MyButton.AfterClick += new System.EventHandler(this.cmdMyButton_Click); This line is giving me a compile error (cmdMyButton_Click does exist). It tells me: Cannot implicitly convert type 'System.EventHandler' to 'Namespace.MyButton.AfterClick' Can anyone tell me what I'm missing, or misunderstanding about this, please?

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  • How important is self-teaching in the programming field? [closed]

    - by ThePlan
    I'm 16. I started programming about a year ago when I was about to start high-school. I'm going for a career in programming, and I'm doing my best to learn as much as I can. When I first started, I learned the basics of C++ from a book and I started to learn things by myself from there on. Nowadays I'm much more experienced than I was a year ago. I knew I had to study by myself because high-school won't (likely) teach me anything valuable about programming, and I want to be prepared. The question here is: how important is it to study programming by oneself?

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  • Website programming language [closed]

    - by Develman
    Hello everybody, I have worked a lot with PHP in last times, but I am not sure if it is the best choice for website programming. What language do you prefer for website programming? Which type (private, business, etc.) of website do you build with that language?

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  • When did you feel comfortable with programming?

    - by misterwebz
    I've been programming for about 6 months, but i still feel like i haven't learned anything. Or maybe i'm overwhelmed by the things i still don't know. Am i doing something wrong here or is this normal? I want to be able to work as a freelancer in a year or two, but i'm not sure if that goal is achievable. So when did you feel comfortable using your programming language of choice and how did you learn it?

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  • Jquery UI autocomplete event change

    - by Stenly.k
    Hi I got a problem with change event. By documntation there should be object ui.item After an item was selected; ui.item refers to the selected item. Always triggered after the close event. But when I try it ui.item is undefined :( I want unset s_town_id when input in autocomplete doesn't match with data from script. Thx for any help. <input id="s_town" type="text" name="s_town" /> <input type="text" id="s_town_id" name="s_town_id" /> $(function() { $("#s_town").autocomplete({ source: function(request, response) { $.ajax({ url: "/_system/_ajax/uiautocomplete.php", dataType: "json", data: { name: "s_town", term: request.term }, success: function(data) { response($.map(data, function(item) { return { label: item.whisper_name+ " [" + item.zip_code + " / " + item.lup_state + "]", value: item.whisper_name, id: item.whisper_id, zip_code: item.zip_code, lup_state: item.lup_state, stateid: item.stateid } })) } }) }, minLength: 2, select: function(event, ui) { $("#s_town_id").val(ui.item.id); }, change: function(event, ui) { // ui.item is undefined :( where is the problem? $("#s_town_id").val(ui.item.id); } }); });

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  • Use the right tool for the job: embedded programming

    - by EmbeddedProg
    I'm interested in programming languages well suited for embedded programming. In particular: Is it possible to program embedded systems in C++? Or is it better to use pure C? Or is C++ OK only if some features of the language (e.g. RTTI, exceptions and templates) are excluded? What about Java in this domain? Thanks.

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  • How can I figure out if programming is right for me? [closed]

    - by user66414
    I have an IT background and was pretty confident until an opportunity came up at work to go into programming(C#). I have never programmed before this, and the software I am programming for is a program I have never used before (a 3D modeling software). It has been 6 months since then and I feel like giving up. I didn't get much training... about 3 weeks of training spread out over the last 6 months. I think I would be good at programming but this experience is kinda making me rethink my decision. I'm not sure if it's just me, or if this frustration is normal. How can I tell if programming is right for me?

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  • Project manager programming background

    - by Henryk Konsek
    Do you think that project manager should have programming background? Do you consider this role as a natural way of evolution for the skilled/leader programmers (as an alternative for architect role)? Or maybe you believe that PM should be just a good manager with a basic understanding of the programming concepts and a fundamental knowledge about the technology you use. What is your experience with working with both kinds of managers (ex-programmers or just managers).

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  • Windows Identity Foundation in SharePoint 2007

    - by rsteckly
    Hi, I've been reading about SharePoint 2010's Claims based authentication support. At this point, my shop has several clients who may not upgrade for a while, however. In making our other services claims compatible, we're wondering if claims based authentication is realistic without a great deal of reworking of existing code in our 2007 installations?

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  • SharePoint 2010 and FBA

    - by itaysk
    Hi, I an trying to setup Forms Based Authentication using ASPNetSQLMembershipProvider. In 2010 Beta 2, I was able to do this in classic mode, and it worked. With the RTM, it is no longer supported under classic mode, and I must switch to Claims based Authentication. So I created a new web application, and configured everything in sharepoint to work with FBA, But I can't get it to work. Anyone managed to do this? Thanks, Itay.

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  • Access/update Telerik RadGrid item values in code-behind before ODS event handler

    - by Brent
    Hi there, I need to update some of the values of the item being edited in my code-behind based on some values in a custom Edit Form on our Rad Grid. Can I access the item (and update some values) from one of the Grid's event handlers? Currently I'm storing the values in temporary variables and then injecting the new values in the ObjectDataSource's Inserting/Updating event handlers, but it would be much nicer if I could do it all in one spot. (I can't do it all in the ObjectDataSource event handlers as I can't access the controls inside my Grid's Edit Form.) I've been playing with the ExtractValues and UpdateValues methods of the GridEditableItem object, but I'm not having any luck. Any tips would be greatly appreciated :)

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  • Mouse Event BHO

    - by shaimagz
    I want my BHO to listen to onmousedown event of some element in a certain webpage. I have all the code that find the specific element, and in msdn its says that I need to use the get_onmousedown event. I came up with this code. CComQIPtr<IHTMLElement> someElement; VARIANT mouse_eve; someElement->get_onmousedown(&mouse_eve); The question is, how do I tell it to run some function when this event occurs?

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  • libevent, windows and .NET programming

    - by Chris
    I experiment with a lot of open source software and I've noticed a fair amount of server type applications in the open source world use libevent to facilitate event-based processing rather than spawn multiple threads to handle requests. I also do a lot of .NET programming (it's my core job function), and I'm interested in learning how libevent relates to the .NET event model. Are events in .NET the equivalent of libevent for C programs? Should I try to learn libevent and attempt to use it in custom .NET server applications or is using the standard .NET event model basically the same thing?

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  • Textbox OnTextChanged and Button Click Event Not Firing

    - by goodwince
    I have textboxes being generated by a repeater that use OnTextChanged with autopostback enabled so that I can know when when the values change. This all works perfect. The problem starts when I try to click on any buttons on the page. The loss of focus triggers the event for the OnTextChanged; however, the event for my buttons never get fired. I checked this in the debugger and while debugging if I put a break-point in the page_load it will call both; however, without the break-point it still only calls the OnTextChanged event. I found this post on JavaScript. If my problem is also JavaScript related, why does the clicking of the button fire in debug mode? Thanks.

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  • Delphi 2010 buttons losing click event

    - by Lobuno
    I've been experimenting a quite strange problem using Delphi 2010. In one form (a quite complex one) some buttons are automagically losing the click event. I am not dynamically assigning the event or something (they are wired in IDE). The events are fired OK some times but suddenly (and randomly) some of them don't fire the events anymore. Placing a break point in the event doesn't stop the execution. Weird, yes, and I'm lost. I know there is no explanation for this so I only want to ask if there is anybody else experimenting the same problem.

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