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  • How do I set a ComboBox default *not in the drop down* when a list item begins with the same text as a drop down item?

    - by John Conrad
    Using C#, say you have a ComboBox that has a DropDownStyle set to DropDown (there are items in the drop down but the user can manually enter a value as well). How do you set a default value for the ComboBox that is not in the list of values in the drop down, but begins with text from a possible selection? Normally setting ComboBox.Text works fine, but if there is an item in the drop down that begins with the text you want as the default, it automatically selects the first item in the list that starts with the text. For example: Values in the drop down: c:\program files\ c:\windows\ d:\media\ Default Value Assignment myComboBox.Text = "C:\"; Result Initial value of ComboBox when the form opens is "c:\program files\". So what am I doing wrong? How do I correctly set a default value of an item not in the drop down list that begins with a possible selection?

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  • How to overide the behavior of Input type="file" Browse button

    - by jay sean
    Hi All, I need to change the locale/language of the browse button in input type="file" We have a special function to change the locale of any text to the browser language such as en-US es-MX etc. Say changeLang("Test"); //This will display test in spanish if the browser locale is es-MX What I need to do is to change the language of the browse button. Since it is not displayed, I can't code it like changeLang("Browse..."); That's why I need to get the code of this input type and overide so that I can apply my funtion to Browse text. It will be appreciated if you can give a solution for this. Thanks! Jay...

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  • Core Data Relationship List

    - by Dylan Copeland
    I'm not sure whether or not this is the appropriate way of doing this, but I was wondering what's the best way to approach a relationship to a value in a list with Core Data? For example, say you have a 'person' entity. Each person can have a different 'hair color'. I'm trying to basically define the hair colors in my data model and allow the 'person' entity to have a relationship to their given 'hair color. Is this possible? Good idea or bad? Thanks in advance.

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  • Preventing $.POST hijack

    - by Jamie
    I'm currently building a facebook application. Lets say I have a variable $uid that identifies the user so I can store this in my database along with their submitted data. I pass $uid and $data via json encoded values using $.post. However, this doesn't prevent someone changing $uid to save data as someone else. I have been thinking about how to overcome this, so far I haven't found a solution apart from: create database with $uid $secretkey on first page load. When $.post send $secretkey with the post and then retrieve the $uid from the database. Would this be the correct approach to use?

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  • How to execute T-SQL for several databases which names are stored on a table

    - by emzero
    Hey guys, so here's the deal. I have several databases (SqlServer 2005) on the same server with the same schema but different data. I have one extra database which has one table storing the names of the mentioned databases. So what I need to do is to iterate over those databases name and actually "switch" to each one (use [dbname]) and execute a T-SQL script. Am I clear? Let me give you an example (simplified from the real one): CREATE TABLE DatabaseNames ( Id int, Name varchar(50) ) INSERT INTO DatabaseNames SELECT 'DatabaseA' INSERT INTO DatabaseNames SELECT 'DatabaseB' INSERT INTO DatabaseNames SELECT 'DatabaseC' Assume that DatabaseA, DatabaseB and DatabaseC are real existing databases. So let's say I need to create a new SP on those DBs. I need some script that loops over those databases and executes the T-SQL script I specify (maybe stored on a varchar variable or wherever). Any ideas? Thanks!

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  • Combining Hg Commits Before Pushing?

    - by Rob
    Let's say I am working on a feature branch cloned from an hg repository - I make some commits and then push the changes back to the repository as expected. However, is there any way to combine multiple commits into a single changeset for the push? For example, today I committed some changes and then remembered I hadn't updated the README file - which meant a 'single' set of changes actually consisted of 2 commits to my local repository. When I pushed these changes back to the original repository it would of been useful to combine the two as a single entity to save cluttering up the repository history.

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  • Mapping Absolute / Relative (Local) Paths to Absolute URLs

    - by Alix Axel
    I need a fast and reliable way to map an absolute or relative local path (say ./images/Mafalda.jpg) to it's corresponding absolute URL, so far I've managed to come up with this: function Path($path) { if (file_exists($path) === true) { return rtrim(str_replace('\\', '/', realpath($path)), '/') . (is_dir($path) ? '/' : ''); } return false; } function URL($path) { $path = Path($path); if ($path !== false) { return str_replace($_SERVER['DOCUMENT_ROOT'], getservbyport($_SERVER['SERVER_PORT'], 'tcp') . '://' . $_SERVER['HTTP_HOST'], $path); } return false; } URL('./images/Mafalda.jpg'); // http://domain.com/images/Mafalda.jpg Seems to be working as expected, but since this is a critical feature to my app I want to ask if anyone can spot any problem that I might have missed and optimizations are also welcome since I'm going to use this function several times per each request.

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  • PHP - CSRF - How to make it works in all tabs?

    - by Erik Persson
    Hi there, I have readed about how to prevent CSRF-attacks in the last days. I am going to update the token in every pageload, save the token in the session and make a check when submitting a form. But what if the user has, lets say 3 tabs open with my website, and I just store the last token in the session? This will overwrite the token with another token, and some post-action is going to fail. Do I need to store all tokens in the session, or is there a better solution to get this working? Best regards, Erik Persson

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  • Reduce lines of code

    - by coffeeaddict
    I'm not a JavaScript guru (yet). I am trying to figure out a way to cut down the number of lines below...are there any shortcuts for lets say the if statements? function showDialog(divID) { var dialogDiv = $("#" + divID); var height = 500; var width = 400; var resizable = false; if (dialogDiv.attr("height") != "") { height = parseInt(dialogDiv.attr("height")); } if (dialogDiv.attr("width") != "") { width = parseInt(dialogDiv.attr("width")); } if (dialogDiv.attr("resizable") != "") { resizable = dialogDiv.attr("resizable"); } dialogDiv.dialog ( { resizable: resizable, width: width, height: height, bgiframe: true, modal: true, autoOpen: false, show: 'blind' } ) dialogDiv.dialog("open"); }

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  • in which namespace / package to put exceptions

    - by Fabiano
    Hi What is the common or best practice to structure the location of your exception classes? Let's say you have the packages/namespaces myproject.person (models and DAOs for persons) and myproject.order (models and DAOs for orders) and the exceptions PersonException and OrderException. Should I put the exceptions in their corresponding packages or in a separate package for exceptions (e.g. myproject.exceptions)? The first approach seems more reasonable (because it's sorted by functionality). But there the question arises where you should put exceptions that are related to both? e.g. a ConstraintViolationException Thanks

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  • Limit the file inputs cloned in a form with Jquery

    - by Philip
    Hi, i use this Jquery function to clone the file input fields in my form, $(function() { var scntDiv = $('#clone'); var i = $('#clone p').size() + 1; $('#addImg').live('click', function() { $('<p><label for="attach"><input type="file" name="attachment_'+ i +'" /> <a href="#" id="remImg">Remove</a></label></p>').appendTo(scntDiv); i++; return false; }); $('#remImg').live('click', function() { if( i > 2 ) { $(this).parents('p').remove(); i--; } return false; }); }); is it possible to limit the fields that can be cloned? lets say a number of 4 fields? thanks a lot, Philip

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  • Performance Testing Versus Unit Testing

    - by Mystagogue
    I'm reading Osherove's "The Art of Unit Testing," and though I've not yet seen him say anything about performance testing, two thoughts still cross my mind: Performance tests generally can't be unit tests, because performance tests generally need to run for long periods of time. Performance tests generally can't be unit tests, because performance issues too often manifest at an integration or system level (or at least the logic of a single unit test needed to re-create the performance of the integration environment would be too involved to be a unit test). Particularly for the first reason stated above, I doubt it makes sense for performance tests to be handled by a unit testing framework (such as NUnit). My question is: do my findings / leanings correspond with the thoughts of the community?

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  • Testing Rails Metal/Rack with RSpec?

    - by Matt Darby
    Say I have a Metal class named Preview. How do I test it with RSpec? When I try: require 'spec_helper' describe Preview do it "should return the posted content" do post "/preview", :content => "*title*" response.body.should == "*title*" end end I get: undefined method `post' for #<ActiveSupport::TestCase::Subclass_1:0x1058b3098> It seems that RSpec doesn't load up the :post method if the test isn't explicitly for a Controller. I've tried specifying :type => :controller to no avail.

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  • Git - tidying up a repo

    - by Simon Woods
    Hi I have got my repo into a bit of a state and want to be able to work my way out of it The repo looks a bit like this (A1, B1, C1 etc are obviously commits) A1 ---- A2 ---- A3 ---- A4 ---- A5 ---- A6 ---- A7 ---- A8 / (from a remote repo) B1 ---- B2 --------------------------------- | \ \ C1 ---------------------------------C2 \ / D1 --- D2 --- D3 --- D4 --- D5 --- D6 Ideally I'd like to be able to remove all the revisions (with rebase?) on the B, C and D lines (I'm loathed to say branches simply because there are now no local branches on these lines except ref branches to the remote repo) and try to merge in the remote repo again, perhaps in a better way. I'd be grateful of any suggestions as to how to get rid of all these commits. Could I ask that any answers use revision SHA1s rather than branch names. I thought that somehow I'd be able to revert the merge into A7 but can't quite work out how to do it I hope that is sufficient information. Many thx Simon

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  • Objective C / iPhone comparing 2 CLLocations /GPS coordinates help

    - by user289503
    Ok , so thanks to Claus Broch I made some progress with comparing two GPS locations. I need to be able to say "IF currentlocation IS EQUAL TO (any GPS position from a list ) THEN do something My code at the moment is : CLLocationCoordinate2D bonusOne; bonusOne.latitude = 37.331689; bonusOne.longitude = -122.030731; Which is the simulators GPS location at Infinite Loop CLLocation *loc1 = [[CLLocation alloc] initWithLatitude:bonusOne.latitude longitude:bonusOne.longitude]; double distance = [loc1 getDistanceFrom:newLocation]; if(distance <= 10000000) { Then do something } Any number under 10000000 and it assumes that there is no match. Any ideas ? Thanks is advance.

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  • Seeking Functional Programming Lexicon

    - by Randall Schulz
    Hi, Knowing the argot of a field helps me a lot, especially since it allows me to converse intelligently with those who know a lot more than I, so I would like to find a good lexicon of Functional Programming terms. E.g., I repeatedly encounter these: Functor, Arrow, Category, Kleisli, Monad, Monoid, a veritable zoo of Morphisms, etc. I also notice many of these appear with prefixes such as "covariant", "co-", "endo-" etc. Of these, I can say I actually understand Monoid and Covariant and sort of get Monad, but the rest are still gibberish to me. (Note that I don't mean this list as exhaustive and I'm not looking to have these defined or described for me here, I'm looking for learning resources.) Can someone point me towards an FP lexicon? It need not be on-line, as long as it's possible to find it (and it's not a rare volume for which I'd have to pay many tens of dollars).

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  • In Rails/ActiveRecord 3, how do I change the default primary key type for MySQL?

    - by jfarmer
    In Rails 3, how do you change the default primary key type to, say, BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY In my case I'm only interested in MySQL. For Rails 2, you can see the answer to "How do I use long IDs in Rails?"1 In Rails 3, however, this will throw an error. I'm not sure if that's because the class is no long used, or if the code needs to go in the same place. You can see in active_record/connection_adapters/mysql_adapter.rb that the NATIVE_DATABASE_TYPES constant is still defined. What's the correct way to achieve the same effect in Rails 3?

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  • Entitiy Framework: "Update Database from Model" instead of "Generate Database from Model"

    - by David
    Hey everyone, I have created a Entity Framework 4 model with Visual Studio 2010 and generated a database from it. Now I found myself adding new properties (with default values), changing documentation of columns, changing names of columns, changing types of columns several times. All tasks that do not require much "extra work" in order not to be possible to be achieved automatically (in my humble opinion). Everytime I did "Generate Database from Model" and lost of course the table data. Is there a way just to update the database's architecture so to say - leaving the table data untouched? Maybe with some user interaction especially when changing types etc.? Or would this functionality be simply too difficult to be realized to work in a reliable way? Thanks in advance! Cheers, David

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  • How to Use an Environment Variable as an Environment Variable Name

    - by Synetech inc.
    Hi, In my pursuit of a solution to another environment-variable/batch-file related problem, I have once again come across a problem I have visited before (but cannot for the life of me remember how, or even if I solved it). Say you have two BAT files (or one batch file and the command line). How can one pass an environment variable name to the other so that it can read the variable? The following example does not work: A.BAT: @call b.bat path B.BAT: @echo %%1% > A.BAT > %1 > B.BAT path > %1 It is easy enough to pass the environment variable name, but the callee cannot seem to use it. (I don’t remember if or how I dealt with this the last time it came up, but I suspect it required the less-than-ideal use of redirecting temporary BAT files and calling them and such.) Any ideas? Thanks.

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  • PHP voting system with sessions?

    - by pingu
    Hi guys, I've been reading up on stackoverflow about creating voting systems in PHP that minimize abuse/multiple voting from the same user, but I haven't come across the answer to my question. I've got an application where users don't need to register to vote or "like" an entry. Obviously, I want to minimize abuse and I don't want to limit votes per IP address because some organisations (mine included) use shared IP addresses. I've never used sessions in a non-authenticated system before, but since this application is centered around entry votes I was wondering if this approach would work and whether there were any disadvantages such as performance implications, and whether it's even possible to use sessions in this way: start a session when the website is loaded allow one vote per item per session If this is a bad idea, my alternative options would be to allow a reasonable number of votes per IP address (say 25), or put a time limit between votes from the same IP address. What do you guys recommend?

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  • Why is VB so popular? [closed]

    - by aaaidan
    To me, Visual Basic seems clumsy, ugly, error-prone, and difficult to read. I'll let others explain why. While VB.net has clearly been a huge leap forward for the language in terms of features, I still don't understand why anyone would choose to code in VB over, say, C#. However, I still see (what seems to be) the vast majority of commercial web apps from "MS shops" are built in VB. I could stand corrected on this, but VB still seems more popular than it deserves. Can anyone help answer any (or all) of these questions: Am I missing something with VB? Is it easier to learn, or "friendlier" than C#? Are there features I don't know about? Why is VB/VB.net so frequently used today, especially in web projects?

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  • GpsSatellite.getSnr() - What is the value range?

    - by rflexor
    I'm building a Sat-View that draws a small bar-chart for available satellites and their signal strength (or better: their signal-to-noise-ratio / SNR). The javadoc doesn't say what value-range to expect for the SNR. The NMEA-Standard says 0-99, but even in best conditions my G1 doesn't reach that value. I also read that different manufacturers use different value-ranges for the SNR, so is that true for android-devices, too? Or is there a unified value range on that plattform and if so, what is it? The lack of information in the docs leads me to suspect I just get the "raw" SNR from the driver, in which case I'd like to know: What do you think is the best approach to visualize that unknown value-range in a bar-chart?

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  • Simple XML variable returns "0"

    - by Warren Haskins
    Ok, so im working with tumblr's API and im using SimpleXMLElement with php and ive run into a problem. Basically, when I call on a variable it just prints a zero. for instance : <?php echo $data->posts->post[0]->photo-url[5]; ?> This just breaks the page, and when I leave out the [5] it just prints zero I want to echo the photo-url with the number [5] but I cant get my head around this and its killing me. I just dont understand why it wont work. Heres a sample of the simpleXMLElement print-out : SimpleXMLElement Object ( [@attributes] = Array ( [version] = 1.0 ) [posts] => SimpleXMLElement Object ( [@attributes] => Array ( [type] => photo ) [post] => Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 574166180 [url] => http://young-n-reckless.tumblr.com/post/574166180 [url-with-slug] => http://young-n-reckless.tumblr.com/post/574166180 [type] => photo [date-gmt] => 2010-05-05 19:52:46 GMT [date] => Wed, 05 May 2010 15:52:46 [unix-timestamp] => 1273089166 [format] => html [reblog-key] => vc9EfT7d [slug] => [tumblelog] => young-n-reckless [bookmarklet] => true ) [tumblelog] => SimpleXMLElement Object ( [@attributes] => Array ( [title] => Young & Reckless [name] => young-n-reckless [url] => http://young-n-reckless.tumblr.com/ [timezone] => US/Eastern [avatar-url-16] => http://24.media.tumblr.com/avatar_424f776dd55c_16.png [avatar-url-24] => http://24.media.tumblr.com/avatar_424f776dd55c_24.png [avatar-url-30] => http://24.media.tumblr.com/avatar_424f776dd55c_30.png [avatar-url-40] => http://25.media.tumblr.com/avatar_424f776dd55c_40.png [avatar-url-48] => http://24.media.tumblr.com/avatar_424f776dd55c_48.png [avatar-url-64] => http://26.media.tumblr.com/avatar_424f776dd55c_64.png [avatar-url-96] => http://25.media.tumblr.com/avatar_424f776dd55c_96.png [avatar-url-128] => http://24.media.tumblr.com/avatar_424f776dd55c_128.png [avatar-url-512] => http://29.media.tumblr.com/avatar_424f776dd55c_512.png ) ) [photo-link-url] => http://www.flickr.com/photos/katiemabey/3429588812/ [photo-url] => Array ( [0] => http://30.media.tumblr.com/tumblr_l1w1qd7Zcg1qatgoto1_500.jpg [1] => http://30.media.tumblr.com/tumblr_l1w1qd7Zcg1qatgoto1_500.jpg [2] => http://25.media.tumblr.com/tumblr_l1w1qd7Zcg1qatgoto1_400.jpg [3] => http://28.media.tumblr.com/tumblr_l1w1qd7Zcg1qatgoto1_250.jpg [4] => http://30.media.tumblr.com/tumblr_l1w1qd7Zcg1qatgoto1_100.jpg [5] => http://30.media.tumblr.com/tumblr_l1w1qd7Zcg1qatgoto1_75sq.jpg ) ) Any help would be greatly appreciated, and thanks in advance. Warren

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  • Javas Math.sin() produces NaN all the time

    - by milan1612
    Forgive me if this is a dumb beginners problem, but I really don't get it. I have a member variable declared like so: public Double Value; When I assign 3.14159265 to Value and try to compute the sine of it, this happens: system.out.println(Value.toString()); //outputs 3.14159265 Value = Math.sin(Value); system.out.println(Value.toString()); //outputs NaN In fact, this happens with every single value I tried - even with 0! Math.sin() seems to always produce NaN as a result, regardless of the arguments value. The docs say: If the argument is NaN or an infinity, then the result is NaN. But my argument is clearly not NaN or infinity! What the heck is happening there?

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  • php selecting hash using wildcards

    - by tipu
    Say I have a hashmap, $hash = array('fox' => 'some value', 'fort' => 'some value 2', 'fork' => 'some value again); I am trying to accomplish an autocomplete feature. When the user types 'fo', I would like to retrieve, via ajax, the 3 keys from $hash. When the user types 'for', I would like to only retrieve the keys fort and fork. Is this possible? What I was thinking was using binary search to isolate the keys with 'f', instead of brute-force searching. Then continue eliminating the indexes as the user types out their query. Is there a more efficient solution to this?

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