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  • Do you think its user unfriendly to show error message in tooltips ?

    - by msfanboy
    Hello, when my user enters data validated as wrong a red circle with a white exclamation mark is shown in the right part of the textbox with the wrong data. The error message is only shown when the user hovers the textbox with wrong data. Do you think that is a bad User experience ? I could show the red error message text to the right side of the textboxes if there would still be space...

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  • Hide Hashtags from the user's address bar

    - by user288082
    Does anyone know an easy way to hide hashtags in the user's address bar? I am using a image gallery plugin and the only way to control the start position is to use a hash tag. The problem is the hash tag gives away the relative path of the images folder and it looks bad. Without the hash tag it only loads thumbs and not start image so really it's unavoidable. Thanks!

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  • Is it OK to put a standard, pure C header #include directive inside a namespace?

    - by mic_e
    I've got a project with a class log in the global namespace (::log). So, naturally, after #include <cmath>, the compiler gives an error message each time I try to instantiate an object of my log class, because <cmath> pollutes the global namespace with lots of three-letter methods, one of them being the logarithm function log(). So there are three possible solutions, each having their unique ugly side-effects. Move the log class to it's own namespace and always access it with it's fully qualified name. I really want to avoid this because the logger should be as convenient as possible to use. Write a mathwrapper.cpp file which is the only file in the project that includes <cmath>, and makes all the required <cmath> functions available through wrappers in a namespace math. I don't want to use this approach because I have to write a wrapper for every single required math function, and it would add additional call penalty (cancelled out partially by the -flto compiler flag) The solution I'm currently considering: Replace #include <cmath> by namespace math { #include "math.h" } and then calculating the logarithm function via math::log(). I have tried it out and it does, indeed, compile, link and run as expected. It does, however, have multiple downsides: It's (obviously) impossible to use <cmath>, because the <cmath> code accesses the functions by their fully qualified names, and it's deprecated to use in C++. I've got a really, really bad feeling about it, like I'm gonna get attacked and eaten alive by raptors. So my question is: Is there any recommendation/convention/etc that forbid putting include directives in namespaces? Could anything go wrong with diferent C standard library implementations (I use glibc), different compilers (I use g++ 4.7, -std=c++11), linking? Have you ever tried doing this? Are there any alternate ways to banish the math functions from the global namespace? I've found several similar questions on stackoverflow, but most were about including other C++ headers, which obviously is a bad idea, and those that weren't made contradictory statements about linking behaviour for C libraries. Also, would it be beneficial to additionally put the #include <math.h> inside extern "C" {}?

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  • Why does my table values return nil when i clearly initialized them?

    - by user3717078
    players = {} function newPlayer(name) players[name]={x = 200, y = 100} --assign each player their x and y coordinates, which is x: 200 and y: 100 end function checkPosition(name?) -- Do i need a parameter? if players[name].x == 200 and players[name].y == 100 then --says players[name].x is a nil value print("good") else print("bad") end end Error: attempt to index ? (a nil value) Current Situation: The code above says players[name].x is a nil value, I would like to know why since i thought i assigned it in the function newPlayer.

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  • group member dropdown in visual studio 2008

    - by knittl
    in visual studio is the member dropdown, where you can select all members of the current type alphabetically ordered. is there an option which allows grouping of the members? i.e. all constructors before all methods before all properties before all events before all fields? if there is not, bad for me, i guess—it would really enhance productivity

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  • Using intermediate array for hashCode and equals

    - by Basilevs
    As its a pain to handle structural changes of the class in two places I often do: class A { private B bChild; private C cChild; private Object[] structure() { return new Object[]{bChild, cChild}; } int hashCode() { Arrays.hashCode(structure); } boolean equals(Object that) { return Arrays.equals(this.structure(), ((A)that).structure()); } } What's bad about this approach besides boxing of primitives? Can it be improved?

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  • Login screen delay in CentOS 5.4 x64

    - by user208728
    I was happily running my CentOS 5.4 before something bad happened that somehow corrupted the 'nautilus' package. It stopped me from using the default Gnome Desktop. Then I installed (using yum) the KDE and nautilus later on. Now, KDE is running perfectly with one exception that it takes around 10 minutes before showing up the Login Screen and only a blue screen with mouse pointer keeps showing during those 10 minutes. Thanks in Anticipation. Regards, Talal

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  • PHP Doctrine: filtering data which is already loaded?

    - by ropstah
    I'm new to Doctrine and ActiveRecord. How should I filter a table after it has been loaded? (i suppose this is preferred over sending multiple queries?) Is this 'good' or 'bad'? class UserTable extends Doctrine_Table { function filterByGroup($group) { $ut = new UserTable(); foreach($this as $u) { if($u->group = $group) $ut->add($u); } return $ut; } }

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  • Remove short tag in html 4 validation using aspx

    - by iPhone Fun
    hi all, I am new to HTML 4 validations, in that if I put HEAD runat="server" tag I am getting this error - Error Line 6, Column 82: character data is not allowed here …lesheet" type="text/css" media="all" / In the head tag I have called css files. So if any one know about thin can help me,how to solve this error? Thanks in advance. and sorry for my bad english...

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  • Passing Request Object into Service Layer

    - by SpringTrickery
    In a spring mvc + spring core app, we have have a view layers, a facade, a service layer, a dao layer and a stored-proc based persistance layer. The service layer is unaware of the clients that utilitize its methods. Is it fine to propagate raw http requests into the service layer? Or is it bad practice and a violation of the loose coupling principles? If it is, then what's a clean workaround?

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  • Is there better documentation then the original OpenAL docs? [closed]

    - by mystify
    OpenAL is such a huge thing, and the documentation doesn't tell what values are acceptable for properties. That's really bad. I'm using the document: "OpenAL_Programmers_Guide.pdf" Whenever I look up a property I'm left in the dark what value might be ok. For example, take AL_PITCH. What value? Maybe someone wrote a better one? Or is there something like a wiki place with more details?

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  • ajax security ?

    - by Tony
    When I look back my codes that written earlier time, I found something terribly bad. Whenever I want to delete a record in the database, I did like this : $.post("deleteAction.do",{recordId:10}); I cannot prevent a malicious user visit my database operation url directly : deleteAction.do?recordId=10 What's the solution for this kind of problem ?

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  • Ruby: How to 'next' an external loop?

    - by Zombies
    file.each_line do |line| #skip the first one/not a user 3.times { next } if first == 1 first = 2 end How can I get the 'next' to well, "next" the iteration of the each_line, instead of the 3.times iteration? Also, how can I write this to look better (ie: first == 1 looks bad)

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  • can i make my google analytics result public ?

    - by vfix
    Hi everyone, I work in a small company and we - as many others = use google analytics to monitor how well/bad our site is doing. To access this information we put the google account's details (username and pwd) and off we go. I now want to share this information with one of my clients but I don't want to give him my google account. can anybody suggest the best way or the best practices to achieve this ? Many Thanks Lp

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  • A way to share the return value of fsockopen() between multiple pages?

    - by Chilln
    Hey, im using a connection to a server in my php script, opened with fsockopen() and i want it to share between different pages so i serialized it and saved it in a session variable but it seems that that ia a bad idea because when i do this nothing happens... Not even an error. The problem is that this connection requires a handshake so i cant reconnect everytime Another question, whats the timeout of fsockopen or does the connection stay alive if the. original php script which called it is closed?

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  • Aborting a merge in git

    - by user18666
    I've done 'git pull', and received a merge conflict. I know that the other version of the file is good, and that mine is bad (all my changes should be abandoned). How do I do this? unmerged: _widget.html.erb You are in the middle of a conflicted merge.

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  • C++ shared objects

    - by Klaus
    Hello, I have got four classes A, B, C and D. Class A has a member b of class B. Class B has a member c of class C. A has a member D* dpointer; This hierarchy has to be preserved (in fact this is a GUI with app, window, panel as A, B and C). Now B and C must use a method from *dpointer. Is there something more elegant than giving dpointer as a member of B and C ? Is it bad ?

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  • How to return a const QString reference in case of failure?

    - by moala
    Hi, consider the following code: const QString& MyClass::getID(int index) const { if (i < myArraySize && myArray[i]) { return myArray[i]->id; // id is a QString } else { return my_global_empty_qstring; // is a global empty QString } } How can I avoid to have an empty QString without changing the return type of the method? (It seems that returning an empty QString allocated on the stack is a bad idea) Thanks.

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  • get metadata from jpg, dng and arw raw files

    - by Daniel
    I was wondering if anyone new how to get access the metadata (the date in particular) from jpg, arw and dng files. I've recently lost the folder structure after a merge operation gone-bad and would like to rename the recovered files according to the metadata. I'm planning on creating a little C++ app to dig into each file and get the metadata. any input is appreciated. ( alternatively, if you know of an app that already does this I'd like to know :)

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  • Do you say No to C# Regions?

    - by LittleBoy
    The idea behind the question is - Just say No! to C# Regions It is said that "the reason to use #region tags because all the things they are hiding is just really bad code." How do you use regions effectively?

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