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Articles indexed in March 2010

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  • Collaborative text editing in a web application

    - by UmYeah
    I have a group of writers around the world all trying to work on one story. I want them to be able to work with each other like they would on google documents, but from within our application. Specifically, being able to see who else is working on the document and what they are changing in real time. Something like an embedded etherpad. Are there any good solutions out in the wild? Im sure building something like this would be a significant project.

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  • ASP.NET Loading a User Control in a Repeater

    - by user70192
    Hello, I have a Repeater control that loads instances of a custom control I have built. This repeater looks like this: <asp:Repeater ID="myRepeater" runat="server" OnLoad="myRepeater_Load"> <HeaderTemplate> <table border="0" cellpadding="0" cellspacing="0"> </HeaderTemplate> <ItemTemplate> <tr><td><my:CustomControl ID="myControl" runat="server" OnLoad="myControl_Load" /> </td></tr> </ItemTemplate> <FooterTemplate> </table> </FooterTemplate> </asp:Repeater> I bind to the Repeater through the myRepeater_Load event handler. My custom control is used to render an item within the Repeater. Because of this, I am trying to set properties on the custom control during the myControl_Load event handler. However, I do not know how to access the current item during the myControl_Load event. Is there a way I can pass along the current item or access the current item during the myControl_Load event? If so, how? Thank you,

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  • How to save value of an element selected by the array style in jQuery ?

    - by Devyn
    Let's say we have following this: <p class="first">This is paragraph 1.</p> <p class="second">This is paragraph 2.</p> <p id="third">This is paragraph 3.</p> <p>This is paragraph 4.</p> We can save the value of an element in value variable and show like this. var value = $('p').slice(3,4); value.text(); // result --> This is paragraph 4 Above way has no problem if we know the number of element but we'll get problem if we have a lot of elements and we want to do with looping. why I get error if I do like this? $('p')[3].text(); What should I do if I want to loop and get values?

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  • Javascript to encode cookie contents into a get or post?

    - by beeky
    I want to pass cookie contents from one domain to another. I don't want to get involved with actual cross-domain cookies. I was thinking of reading the cookie on the domain that sets it and then sending it as an encrypted JSON object to the domain that wants to use it. Is there an accepted way of doing this and/or a toolkit that handles this sort of thing? Thanks for any help or advice, -=b

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  • trying to delete a song from a list UITableView sigbart error - addMusic Example

    - by Pavan
    hi im trying to implement a delete feature into the addmusic example this is the code ive added it doesnt work, i cant get my head around whats wrong. can someone please tell me whats wrong and what i need to do to make sure it works. - (void)tableView:(UITableView*)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath { } - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { // If row is deleted, remove it from the list. if (editingStyle == UITableViewCellEditingStyleDelete) { MainViewController *mainViewController = (MainViewController *) self.delegate; NSUInteger index = [indexPath row]; MPMediaItem *itemToDelete = [mainViewController.userMediaItemCollection mediaItemAtIndex:index]; if ([itemToDelete isEqual:mainViewController.musicPlayer.nowPlayingItem]) { [mainViewController.musicPlayer skipToNextItem]; } MPMediaItemCollection *newCollection = [mainViewController.userMediaItemCollection collectionByDeletingMediaItemAtIndex:index]; mainViewController.userMediaItemCollection = newCollection; NSUInteger indices[] = {0, index}; NSIndexPath *deletePath = [NSIndexPath indexPathWithIndexes:indices length:2]; [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:deletePath] withRowAnimation:UITableViewRowAnimationFade]; I also get these warnings when i compile the program and run it: heres the image: http://www.freeimagehosting.net/uploads/6e42f166b9.png Any ideas and help appreciated.

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  • JQuery form submit Question?

    - by SLAPme
    I'm kind of new to JQuery and was wondering how can I have the following text appear when the user submits there changes <p>Your changes have been saved.</p>? How do I fix my code so it displays this message? JQuery script. $(function() { $(".save-button").click(function() { $.post($("#contact-form").attr("action"), $("#contact-form").serialize(), function(html) { $("div.contact-info-form").html(html); }); return false; // prevent normal submit }); }); Here is the html. <div id="contact-info-form" class="form-content"> <h2>Contact Information</h2> <form method="post" action="index.php" id="contact-form"> <fieldset> <ul> <li><label for="address">Address 1: </label><input type="text" name="address" id="address" size="25" class="input-size" value="<?php if (isset($_POST['address'])) { echo $_POST['address']; } else if(!empty($address)) { echo $address; } ?>" /></li> <li><label for="address_two">Address 2: </label><input type="text" name="address_two" id="address_two" size="25" class="input-size" value="<?php if (isset($_POST['address_two'])) { echo $_POST['address_two']; } else if(!empty($address_two)) { echo $address_two; } ?>" /></li> <li><label for="city_town">City/Town: </label><input type="text" name="city_town" id="city_town" size="25" class="input-size" value="<?php if (isset($_POST['city_town'])) { echo $_POST['city_town']; } else if(!empty($city_town)) { echo $city_town; } ?>" /></li> <li><label for="state_province">State/Province: </label> <?php echo '<select name="state_province" id="state_province">' . "\n"; foreach($state_options as $option) { if ($option == $state_province) { echo '<option value="' . $option . '" selected="selected">' . $option . '</option>' . "\n"; } else { echo '<option value="'. $option . '">' . $option . '</option>'."\n"; } } echo '</select>'; ?> </li> <li><label for="zipcode">Zip/Post Code: </label><input type="text" name="zipcode" id="zipcode" size="5" class="input-size" value="<?php if (isset($_POST['zipcode'])) { echo $_POST['zipcode']; } else if(!empty($zipcode)) { echo $zipcode; } ?>" /></li> <li><label for="country">Country: </label> <?php echo '<select name="country" id="country">' . "\n"; foreach($countries as $option) { if ($option == $country) { echo '<option value="' . $option . '" selected="selected">' . $option . '</option>' . "\n"; } else if($option == "-------------") { echo '<option value="' . $option . '" disabled="disabled">' . $option . '</option>'; } else { echo '<option value="'. $option . '">' . $option . '</option>'."\n"; } } echo '</select>'; ?> </li> <li><label for="email">Email Address: </label><input type="text" name="email" id="email" size="25" class="input-size" value="<?php if (isset($_POST['email'])) { echo $_POST['email']; } else if(!empty($email)) { echo $email; } ?>" /><br /><span>We don't spam or share your email with third parties. We respect your privacy.</span></li> <li><p>Changes have been saved</p><input type="submit" name="submit" value="Save Changes" class="save-button" /> <input type="hidden" name="contact_info_submitted" value="true" /> <input type="submit" name="submit" value="Preview Changes" class="preview-changes-button" /></li> </ul> </fieldset> </form> </div>

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  • Invoke ngen from NSIS installer

    - by BlackStar
    I am using NSIS to deploy a .Net application. The installation/uninstallation process works fine, but I would like to add a final ngen step to improve startup performance. Unfortunately, Google didn't reveal any relevant material. It's unlikely that noone has ever done this before - maybe someone here has some idea? In the unlikely case that this is impossible to support without ugly hacks, I would be willing to use a different installer technology provided it can run on my Linux build server. (This rules out WiX, for example.) Any ideas?

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  • useing my own db info to replace parts of a url and open in a iframe

    - by Morpheus Lucid
    print ("http://maps.google.com/maps/api/staticmap?center=");echo $City;print (",");echo $City;print (","); echo $State;print ("&zoom=14&size=500x500&maptype=roadmap&markers=color:blue|label:S|"); echo $Latitude;print (",");echo $Longitude;print ("&sensor=false")"); when page is loaded it prints right but would like to take the results from this and put into a iframe so when page loads it shows the map of the entry

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  • accessing array values without square brackets in php

    - by amb
    In php how can I access an array's values without using square brackets around the key? My particular problem is that I want to access the elements of an array returned by a function. Say function(args) returns an array. Why is $var = function(args)[0]; yelling at me about the square brackets? Can I do something like $var = function(args).value(0); or am I missing something very basic?

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  • "Access 2002 vs SQL Server 200*" as DB for sharepoint

    - by Jake
    I work with a team that has a sharepoint site currently runnning and its lists are linked to an access DB. My question is really on the investment level, what would be the reasons to upgrade DB to sharepoint if only a few 100 users access this site. Is there a real benefit to replacing the DB with a version of SQL Server, escpecially if about to replace Access 2002 with 2007 some day. I know SQL Server can handle more memory and traffic for more users, but I'm looking for more reasons than that if there are any.

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  • An interesting case of delete and destructor (C++)

    - by Viet
    I have a piece of code where I can call destructor multiple times and access member functions even the destructor was called with member variables' values preserved. I was still able to access member functions after I called delete but the member variables were nullified (all to 0). And I can't double delete. Please kindly explain this. Thanks. #include <iostream> using namespace std; template <typename T> void destroy(T* ptr) { ptr->~T(); } class Testing { public: Testing() : test(20) { } ~Testing() { printf("Testing is being killed!\n"); } int getTest() const { return test; } private: int test; }; int main() { Testing *t = new Testing(); cout << "t->getTest() = " << t->getTest() << endl; destroy(t); cout << "t->getTest() = " << t->getTest() << endl; t->~Testing(); cout << "t->getTest() = " << t->getTest() << endl; delete t; cout << "t->getTest() = " << t->getTest() << endl; destroy(t); cout << "t->getTest() = " << t->getTest() << endl; t->~Testing(); cout << "t->getTest() = " << t->getTest() << endl; //delete t; // <======== Don't do it! Double free/delete! cout << "t->getTest() = " << t->getTest() << endl; return 0; }

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  • Quality gets worse

    - by Hopery
    I have bunch of flash videos and am adding my brand to all of them. The problem is quality gets worse. I am doing with this command: ffmpeg -i /input.flv -vhook "/usr/loca/vhook/drawtext.so -f /usr/share/fonts/somefont.ttf -x 5 -y 5 t MyBrand" -f flv -s 320x240 - | flvtools2 -U stdin /output.flv Please tell me what I am doing wrong. I need the same quality.

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  • Can I create class properties during __new__ or __init__?

    - by 007brendan
    I want to do something like this. The _print_attr function is designed to be called lazily, so I don't want to evaluate it in the init and set the value to attr. I would like to make attr a property that computes _print_attr only when accessed: class Base(object): def __init__(self): for attr in self._edl_uniform_attrs: setattr(self, attr, property(lambda self: self._print_attr(attr))) def _print_attr(self, attr): print attr class Child(Base): _edl_uniform_attrs = ['foo', 'bar'] me = Child() me.foo me.bar #output: #"foo" #"bar"

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  • Singleton pattern in C++

    - by skydoor
    I have a question about the singleton pattern. I saw two cases concerning the static member in the singleton class. First it is an object, like this class CMySingleton { public: static CMySingleton& Instance() { static CMySingleton singleton; return singleton; } // Other non-static member functions private: CMySingleton() {} // Private constructor ~CMySingleton() {} CMySingleton(const CMySingleton&); // Prevent copy-construction CMySingleton& operator=(const CMySingleton&); // Prevent assignment }; One is an pointer, like this class GlobalClass { int m_value; static GlobalClass *s_instance; GlobalClass(int v = 0) { m_value = v; } public: int get_value() { return m_value; } void set_value(int v) { m_value = v; } static GlobalClass *instance() { if (!s_instance) s_instance = new GlobalClass; return s_instance; } }; What's the difference between the two cases? Which one is correct?

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  • add/remove items in a list

    - by Jam
    I'm trying to create a player who can add and remove items from their inventory. I have everything working, I just have 1 small problem. Every time it prints the inventory, 'None' also appears. I've been messing with it to try and remove that, but no matter what I do, 'None' always appears in the program! I know I'm just missing something simple, but I can't figure it out for the life of me. class Player(object): def __init__(self, name, max_items, items): self.name=name self.max_items=max_items self.items=items def inventory(self): for item in self.items: print item def take(self, new_item): if len(self.items)<self.max_items: self.items.append(new_item) else: print "You can't carry any more items!" def drop(self, old_item): if old_item in self.items: self.items.remove(old_item) else: print "You don't have that item." def main(): player=Player("Jimmy", 5, ['sword', 'shield', 'ax']) print "Max items:", player.max_items print "Inventory:", player.inventory() choice=None while choice!="0": print \ """ Inventory Man 0 - Quit 1 - Add an item to inventory 2 - Remove an item from inventory """ choice=raw_input("Choice: ") print if choice=="0": print "Good-bye." elif choice=="1": new_item=raw_input("What item would you like to add to your inventory?") player.take(new_item) print "Inventory:", player.inventory() elif choice=="2": old_item=raw_input("What item would you like to remove from your inventory?") player.drop(old_item) print "Inventory:", player.inventory() else: print "\nSorry, but", choice, "isn't a valid choice." main() raw_input("Press enter to exit.")

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  • .gitignore for Visual Studio Projects and Solutions

    - by Martin Aatmaa
    Which files should I include in .gitignore when using Git in conjunction with Visual Studio Solutions (.sln) and Projects? Community Wiki: #OS junk files Thumbs.db *.DS_Store #Visual Studio files *.obj *.exe *.pdb *.user *.aps *.pch *.vspscc *.vssscc *_i.c *_p.c *.ncb *.suo *.tlb *.tlh *.bak *.cache *.ilk *.log *.lib *.sbr *.sdf ipch/ obj/ [Bb]in [Dd]ebug*/ [Rr]elease*/ #Tooling _ReSharper*/ [Tt]est[Rr]esult* #Project files [Bb]uild/

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  • Decent simple SQL Server client

    - by John
    Hi, does anyone know of a very simple SQL Server client tool - that does the same basic functions as Management Studio (i.e. choose a database and run a query - doesn't need an Object Explorer, or anything fancy)? Ideally it would be great to have a single exe or zip file version that I could take around on a USB key - anything to avoid installing the full set of SQL Server client tools all the time! Thanks, John

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  • Python.expat can't parse XML file with bad symbols. How to go around?

    - by culebrón
    I'm trying to parse an XML file with expat, and here's the line where I get bad token exception: <tag k="name" v="???????????????????????????????????????????????????????????????????" /> xml.parsers.expat.ExpatError: not well-formed (invalid token): line 610127, column 37 The symbols in hex look like: \xd1? Seems like someone wrote this string (Russian alfabet) hitting backspace a few times. I set parser.returns_unicode = True, but this didn't help. The 1st line is <?xml version="1.0" encoding="UTF-8"?>. I work with a bz2 file. (bz2.BZ2File) How can I parse the file?

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  • How dangerous can javascript be?

    - by CrazyJugglerDrummer
    I have recently started using noscript (in addition to ABP). It took a little while to get used to it and can occasionally require some clicking when visiting a new site to investigate why the site's not working and where I need to allow javascript from. Is the extra security worth it? Some of the controversy is discussed here. I suppose it boils down to a matter of whether javascript is a genuine threat to your computer or not. Any thoughts on this?

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  • How to use Windows live contacts api to allow users to import contacts

    - by AlfaTeK
    I can't find a good, simple tutorial on how to achieve this in PHP / Javascript. Basically the same thing FB has where the users specifies their hotmail account and then gives permission to FB to access their contacts. As the API seems to have changed most tutorials simply don't work like: http://livecontactsphp.codeplex.com/ which doesn't get the contacts (but authenticates and gets permission from user)

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  • Need MySQL RLIKE expression to exclude certain strings ending in particular characters...

    - by user299508
    So I've been working with RLIKE to pull some data in a new application and mostly enjoying it. To date I've been using RLIKE queries to return 3 types of results (files, directories and everything). The queries (and example results) follow: **All**: SELECT * FROM public WHERE obj_owner_id='test' AND obj_namespace RLIKE '^user/test/public/[-0-9a-z_./]+$' ORDER BY obj_namespace user/test/public/a-test/.comment user/test/public/a-test/.delete user/test/public/directory/ user/test/public/directory/image.jpg user/test/public/index user/test/public/site-rip user/test/public/site-rip2 user/test/public/test-a user/test/public/widget-test **Files**: SELECT * FROM public WHERE obj_owner_id='test' AND obj_namespace RLIKE '^user/test/public/[-0-9a-z_./]+[-0-9a-z_.]+$' ORDER BY obj_namespace user/test/public/a-test/.comment user/test/public/a-test/.delete user/test/public/directory/image.jpg user/test/public/index user/test/public/site-rip user/test/public/site-rip2 user/test/public/test-a user/test/public/widget-test **Directories**: SELECT * FROM public WHERE obj_owner_id='test' AND obj_namespace RLIKE '^user/test/public/[-0-9a-z_./]+/$' ORDER BY obj_namespace user/test/public/directory/ This works well for the above 3 basic scenarios but under certain situations I'll be including special 'suffixes' I'd like to be excluded from the results of queries (without having to resort to PHP functions to do it). A good example of such a string would be: user/test/public/a-test/.delete That data (there are more rows then just obj_namespace) is considered deleted and in the Files and All type queries I'd like it to be omitted within the expression if possible. Same goes for the /.comments and all such meta data will always be in the same format: /.[sometext] I'd hoped to use this feature extensively throughout my application, so I'm hoping there might be a very simple answer. (crosses fingers) Anyway, thanks as always for any/all responses and feedback.

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