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  • C# Timer counter in xx.xx.xx format

    - by Darkshadw
    I have a counter that counts up every 1 second and add 1 to an int. Question How can I format my string so the counter would look like this: 00:01:23 Instead of: 123 Things I've tried Things I've tried so far: for (int i = 0; i < 1; i++) { _Counter += 1; labelUpTime.Text = _Counter.ToString(); } My timer's interval is set to: 1000 (so it adds 1 every second). I did read something about string.Format(""), but I don't know if it is applicable. Thanks if you can guide me through this :D!

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  • Am i using too much jquery? When i'm crossing the line?

    - by Andrea
    Lately i find myself using jquery and javascript a lot, often to do the same things that i did before using css. For example, i alternate table rows color or create buttons and links hover effects using javascript/jquery. Is this acceptable? Or should i keep using css for these kind of things? So the real question is: When i'm using too much jquery? How can i understand when i'm crossing the line? Thanks.

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  • How does ‘Servers’ view work underlying in Eclipse?

    - by Michael Lu
    ‘Servers’ is built-in view in Eclipse. We could integrate jee server into Eclipse easily. It could start/stop server both in normal and debug modes. Moreover, we could even set timeout and deployment path, things like that. Various types of server tomcat, jboss, websphere are supported, no intrusive to server. I am just curious about how these cool things happen behind the scene. The complete mechanism is large and complex, so I just want to know general mechanism about it, an article also could be fine for me. Thank you!

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  • Declaration and initialization of local variables - what is most C++ like?

    - by tuergeist
    Hi, I did not find any suitable questions answered yet, so I'd like to know what is "better" C++ style in the mean of performance and/or memory. Both codes are inside a method. The question is: When to declare long prio? And what are the implications? Code 1 while (!myfile.eof()) { getline(myfile, line); long prio = strtol(line); // prio is declared here // put prio in map... // some other things } Code 2 long prio; // prio is declared here while (!myfile.eof()) { getline(myfile, line); prio = strtol(line); // put prio in map... // some other things }

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  • How to deal with the Hibernate hql multi-join query result in an Object-Oriented Way?

    - by EugeneP
    How to deal with the Hibernate hql multi-join query result in an Object-Oriented Way? As I see it returns a list of Objects. yes, it is tricky and only you who write the query know what should the query return (what objects). But are there ways to simplify things, so that it returned specific objects with no need in casting Object to a specific class according to its position in the query ? Maybe Spring can simplify things here? It has the similar functionality for JDBC, but I don't see if it can help in a similar way with Hibernate.

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  • Best practices to keep up a diverging branch of code

    - by JS_is_bad
    I'm in a situation where some minor patches I've submitted to an open-source project were ignored or explicitly not accepted. I consider them useful, but more important is that I need the functionality they implement. I don't want to push my ideas and suggestions anymore to the main contributors, because I don't want to turn this into an ego issue. I've decided that my best bet would be just to use what I wrote for my own purposes. I don't want to fork the whole source code tree because I like how things are generally working, I'm just not happy with details. But I do realize that the project will evolve and I would like to use the new features that will eventually appear. I understand that I'll have to merge all new things into my own source tree. Are there any best practices for this scenario?

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  • Dynamically changing databases in SQL Server 2000

    - by spuppett
    At work we have a number of databases that we need to do the same operations on. I would like to write 1 SP that would loop over operations and set the database at the beginning of the loop (example to follow). I've tried sp_executesql('USE ' + @db_id) but that only sets the DB for the scope of that stored procedure. I don't really want to loop with hard coded database names because we need to do similar things in many different places and it's tough to remember where things need to change if we add another DB. Any thoughts Example: DECLARE zdb_loop CURSOR FAST_FORWARD FOR SELECT distinct db_id from DBS order by db_id OPEN zdb_loop FETCH NEXT FROM zdb_loop INTO @db_id WHILE @@FETCH_STATUS = 0 BEGIN USE @db_id --Do stuff against 3 or 4 different DBs FETCH NEXT FROM zdb_loop INTO @db_id END CLOSE zdb_loop DEALLOCATE zdb_loop

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  • What do you wish you could've learned sooner?

    - by Industrial
    What things, methods, workflows, etc. can you not live without today and wish you had learned of a long time ago? For example, learning some basic Ubuntu and using my debugger properly in the IDE have made a huge difference to me and are together probably the two things that I most wish I had done a long time ago. Using a debugger just seems like common sense now to many of us, but to those that are in a early stage of their career it might not. (I'm a good example of that.)

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  • Ruby forwarding method calls

    - by JP
    I have an instance of a master class which generates instances of a subclass, these subclasses need to forward some method calls back to the master instance. At the moment I have code looking something like this, but it feels like I should be able to do the same thing more efficiently (maybe with method_missing?) class Master def initalize(mynum) @mynum = mynum end def one_thing(subinstance) "One thing with #{subinstance.var} from #{@mynum}" end def four_things(subinstance) "Four things with #{subinstance.var} from #{@mynum}" end def many_things(times,subinstance) "#{times} things with #{subinstance.var} from #{@mynum}" end def make_a_sub(uniqueness) Subthing.new(uniqueness,self) end class Subthing def initialize(uniqueness,master) @u = uniqueness @master = master end # Here I'm forwarding method calls def one_thing master.one_thing(self) end def four_things master.four_things(self) end def many_things(times) master.many_things(times,self) end end end m = Master.new(42) s = m.make_a_sub("very") s.one_thing === m.one_thing(s) s.many_things(8) === m.many_things(8,s) I hope you can see what's going on here. I would use method_missing, but I'm not sure how to cope with the possibility of some calls having arguments and some not (I can't really rearrange the order of the arguments to the Master methods either) Thanks for reading!

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  • question about Littles Law

    - by davit-datuashvili
    I know that Little's Law states (paraphrased): the average number of things in a system is the product of the average rate at which things leave the system and the average time each one spends in the system, or: n=x*(r+z); x-throughput r-response time z-think time r+z - average response time now i have question about a problem from programming pearls: Suppose that system makes 100 disk accesses to process a transaction (although some systems require fewer, some systems will require several hundred disk access per transaction). How many transactions per hour per disk can the system handle? please help

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  • Refactoring FAT client legacy application

    - by Paul
    I am working on a fat client legacy C++ application which has a lot of business logic mixed in with the presentation side of things. I want to clean things out and refactor the code out completely, so there is a clear seperation of concerns. I am looking at MVC or some other suitable design pattern in order to achieve this. I would like to get recommendations from people who have walked this road before - Do I use MVP or MVC (or another pattern)? What is/are the best practices for undertaking something like this (i.e. useful steps/checks) ?

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  • WPF/C# - Sometimes my dropdowns/datepickers will stop functioning?

    - by BlargINC
    Q: Where should I check to track this down? Issue: Opening a view model in my application sometimes makes dropdowns/datepickers nonfunctional. ie. dropdown won't drop and the datepicker calendar won't come up I suspect a binding issue but don't see one. Dropdowns have normal things like strings, numbers. One drop has a list of mini views. Datepickers are bound to nullable dates set in the constructor of the viewmodel. Note: These same things work in other viewmodels/views. I can paste code, I'm just not sure what code is relevant here. Thank you for helping me :)

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  • Sometimes my dropdowns/datepickers will stop functioning?

    - by BlargINC
    Q: Where should I check to track this down? Issue: Opening a view model in my application sometimes makes dropdowns/datepickers nonfunctional. ie. dropdown won't drop and the datepicker calendar won't come up I suspect a binding issue but don't see one. Dropdowns have normal things like strings, numbers. One drop has a list of mini views. Datepickers are bound to nullable dates set in the constructor of the viewmodel. Note: These same things work in other viewmodels/views. I can paste code, I'm just not sure what code is relevant here.

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  • Is object clearing/array deallocation really necessary in VB6/VBA (Pros/Cons?)

    - by Oorang
    Hello, A lot of what I have learned about VB I learned from using Static Code Analysis (Particularly Aivosto's Project Analyzer). And one one of things it checks for is whether or not you cleared all objects and arrays. I used to just do this blindly because PA said so. But now that I know a little bit more about the way VB releases resources, it seems to me that these things should be happening automatically. Is this a legacy feature from pre VB6, or is there a reason why you should explicitly set objects back to nothing and use Erase on arrays?

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  • visual c# 2010 communicating between two projects

    - by cake is a joke
    I am trying to create a windows form project, and use speech recognition for the Kinect with the Kinect to Windows SDK. I have the form application project (p1) and the Kinect speech project (p2) which is a command prompt. I made it a command prompt because it was the easiest way to do things. Anyway, I have read and found two things about this. 1)I found out how to run two projects at the same time in the same solution. 2) I also found out how to add references to get classes from each project to the other. So, how would I get variables from each project? Just by using project references, or something? P2 can recognize speech and save it to variables, if that counts for anything.

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  • Need help on understanding Mobile First concept

    - by RhymeGuy
    So, I worked on responsive sites before but I'm on my way to build my first responsive site now. I opened some articles on the subject, and boom: Mobile First.. I have no idea how I skipped that concept till now. From the beginning I cant seem to understand whole thing (except that number of mobile devices will take out soon desktop computers) and here is why. How I'm supposed to know how my site will look for desktop version, if I design it for mobile first? I mean, on the smallest device I will have to eventually hide some content etc, how I'm supposed to know what to hide and move things, when I don't know how the site will look on bigger screen? Isn't stripping the things easier?!?! For me (right now), the Mobile First concept looks to me like building pyramid upside down.

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  • Users and roles in context

    - by Eric W.
    I'm trying to get a sense of how to implement the user/role relationships for an application I'm writing. The persistence layer is Google App Engine's datastore, which places some interesting (but generally beneficial) constraints on what can be done. Any thoughts are appreciated. It might be helpful to keep things very concrete. I would like there to be organizations, users, test content and test administrations (records of tests that have been taken). A user can have the role of participant (test-taker), contributor of test material or both. A user can also be a member of zero or more organizations. In the role of participant, the user can see the previous administrations of tests he or she has taken. The user can also see a test administration of another participant if that participant has given the user authorization. The user can see test material that has been made public, and he or she can see restricted content as a participant during a specific administration of a test for which that user has been authorized by an organization. As a member of an organization, the user can see restricted content in the role of contributor, and he or she might or might not also be able to edit the content. Each organization should have one or more administrators that can determine whether a member can see and edit content and determine who has admin privileges. There should also be one or more application-wide superusers that can troubleshoot and solve problems. Members of organizations can see the administrations of tests that the participants concerned have authorized them to see, and they can see anonymous data if no authorization has been given. A user cannot see the test results of another user in any other circumstances. Since there are no joins in the App Engine datastore, it might be necessary to have things less normalized than usual for the typical SQL database in order to ensure that queries that check permissions are fast (e.g., ones that determine whether a link is to be displayed). My questions are: How do I move forward on this? Should I spend a lot of time up front in order to get the model right, or can I iterate several times and gradually roll in additional complexity? Does anyone have some general ideas about how to break things up in this instance? Are there any GAE libraries that handle roles in a way that is compatible with this arrangement?

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  • Working with sets of rows in (My)SQL and comparing values

    - by Pep.
    Hello, I am trying to figure out the SQL for doing some relatively simple operations on sets of records in a table but I am stuck. Consider a table with multiple rows per item, all identified by a common key. For example: serial model color XX1 A blue XX2 A blue XX3 A green XX5 B red XX6 B blue XX1 B blue What I would for example want to do is: Assuming that all model A rows must have the same color, find the rows which dont. (for example, XX3 is green). Assuming that a given serial number can only point to a single type of model, find out the rows which that does not occur (for example XX1 points both to A and B) These are all simple logically things to do. To abstract it, I want to know how to group things by using a single key (or combination of keys) and then compare the values of those records. Should I use a join on the same table? should i use some sort of array or similar? thanks for your help

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  • progress at work

    - by noopize
    I work in a small department in a very large company. Our department operates largely as a independent unit within the company. Each member of the team has a different role. My role within the team is a operations/admin and no one knew of my skills in programing as I never said anything before about it. I just did my work and in the free time read up on things for my own development Our developer who used to look after our websites has left a few months ago. Now when we require edits to our websites even basic HTML changes we outsource the work. We are getting shafted big time. I could of so said something sooner to highlight my skills in this area but I guess I was just happy to do my own development projects. And one reason was they are using asp.net and I have mainly done things in php. I only hinted before that I have done things but I did not want to reveal them before I had completed anything. I was working on something for myself that the company was also trying to implement something similar(e commerce site). I used open source and they decided to go for a propriety solution. Now I have finished my project and showed it to my boss, their project is still not completed and is quite expensive. He was impressed with what I showed him and suggested I should go for courses to learn asp.net. that I may be able to do the development work for them and there are some big upcoming projects in the future. He said this would be a benefit for me that I should look to be doing a better then role then admin. My employer does have a policy if relevent to the role they may support the costs of courses. Now how do I play this what should I say to my boss. I want to get advise on which MS certified courses would be good for asp.net and how to best approach my boss to see if they will pay all the amount for the course. And how much different will asp.net be from php.

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  • Why is i-- faster than i++ in loops? [closed]

    - by Afshin Mehrabani
    Possible Duplicate: JavaScript - Are loops really faster in reverse…? I don't know if this question is valid in other languages or not, but I'm asking this specifically for JavaScript. I see in some articles and questions that the fastest loop in JavaScript is something like: for(var i = array.length; i--; ) Also in Sublime Text 2, when you try to write a loop, it suggests: for (var i = Things.length - 1; i >= 0; i--) { Things[i] }; I want to know, why is i-- faster than i++ in loops?

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  • JQuery mobile handling links (return false)

    - by shinax
    I'm planning on using JQM to make a simple mobile web app, and I'm having problems getting this simple functionality to work: when I click on some links (not all of them), I want to be able to first process some data, and then depending on that outcome, sometimes continue the link action (I like the whole transitions and ajax things), and sometimes don't. The important part is that I want to preserve the normal JQMobile transitions and stuff for the links, just sometimes prevent them (for example for validation and things like that). I've tried with: return false, preventDefault (and in combination with stopPropagation), and data-ajax="false", and none hav worked, they all redirect. Could somebody tell me the correct way to to this in JQMobile? Just in case it's important: I'm using anchor links, using this to test. Thank you in advance, Jennifer.

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