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• Google Gears hangs when capturing (unmanaged resource store)

  - by Gus

  Our code was written based on the example from Google Gears' own docs. We're using an unmanaged resource store. So we declare the files in an array, create the store, and capture all the files. Trouble is, the capturing process hangs. It always hangs on a random file (no discernible pattern has emerged), and when you reload the page, it always successfully captures. We're capturing 48 files. It seems to have nothing to do with the files themselves, as it hangs on every file type. I've seen it hang on the 6th file or the 47th. Windows and Mac. FF, IE, and Safari. We are not using a WorkerPool, and I'm thinking this may be necessary. Any other ideas why it would hang?

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• JQUERY common function library create script errors. How to avoid?

  - by Cesar Lopez

  Hi all, I am building a common function library but the functions inside need to reference different jquery files, which they may need to be referenced in some pages but not in others. When I called this common function library in one web page which is only going to use one function, and I don't reference the files need it for the other function, then it will create a script error. My question is if it would be possible to stop this script errors like... //This if statement is what I was thinking to stop going through if ($(".objectdate") != null){ //This is the function that is calling other jquery files and creates error. $(document).ready(function() { $(".objectdate").datepicker({ //Code inside. }); }); } Thanks.

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• Tool that auto-generate a code for accesing a xml-file

  - by alex

  My application have a configuration xml-file. That file contains more than 50 program settings. At the present time I read and save each program setting separately. I guess It is not effi?iently for such tasks. I need something that can auto-generate a code for load and save my program settings using predefined xml-schema. I found a dataset in Add New Item dialog. Unfortunately, i cannot add new code to dataset1 such as events in set-accessors of properties because of this // Changes to this file may cause incorrect behavior and will be lost if // the code is regenerated. Maybe, there is a tool that allows a user to generate a wrapper for accesing a xml-file ? Such as DataSet1, but with availability to add events.

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• Which tool should I use for finding out my memory allocation in Perl?

  - by Colin Newell

  I've slurped in a big file using File::Slurp but given the size of the file I can see that I must have it in memory twice or perhaps it's getting inflated by being turned into 16 bit unicode. How can I best diagnose that sort of a problem in Perl? The file I pulled in is 800mb in size and my perl process that's analysing that data has roughly 1.6gb allocated at runtime. I realise that I may be wrong about my reason for the problem but I'm not sure the most efficient way to prove/disprove my theory.

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• What alternatives are there to Google App Engine?

  - by Chris Marasti-Georg

  What alternatives are there to GAE, given that I already have a good bit of code working that I would like to keep. In other words, I'm digging python. However, my use case is more of a low number of requests, higher CPU usage type use case, and I'm worried that I may not be able to stay with App Engine forever. I have heard a lot of people talking about Amazon Web Services and other sorts of cloud providers, but I am having a hard time seeing where most of these other offerings provide the range of services (data querying, user authentication, automatic scaling) that App Engine provides. What are my options here?

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• small string optimization for vector?

  - by BuschnicK

  I know several (all?) STL implementations implement a "small string" optimization where instead of storing the usual 3 pointers for begin, end and capacity a string will store the actual character data in the memory used for the pointers if sizeof(characters) <= sizeof(pointers). I am in a situation where I have lots of small vectors with an element size <= sizeof(pointer). I cannot use fixed size arrays, since the vectors need to be able to resize dynamically and may potentially grow quite large. However, the median (not mean) size of the vectors will only be 4-12 bytes. So a "small string" optimization adapted to vectors would be quite useful to me. Does such a thing exist? I'm thinking about rolling my own by simply brute force converting a vector to a string, i.e. providing a vector interface to a string. Good idea?

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• encryption problem for wlan profile

  - by Jassi

  i am trying to encrypt keyMaterial element from wireless profile. so I want to convert byte array into OLECHAR but it is giving me wrong output not key sea the below code you may know the solution... DATA_BLOB in; DATA_BLOB out; BYTE pin=(BYTE)"FIPL2"; DWORD din=strlen((char*)pin)+1; in.pbData = pin; in.cbData = din; if(CryptProtectData(&in,L"what is it",NULL,NULL,NULL,0,&out)) { BYTE *b=out.pbData; USES_CONVERSION; bstr=SysAllocString(W2BSTR((const WCHAR *)b)); HRCALL(peSubS222->put_text(bstr), ""); SysFreeString(bstr); bstr=NULL; } else { cout<<"NOOOOOOOOOOOOOOOO :("; } what is missing please help me out

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• MySQL 5 in MySQL 4 compatible mode for one database?

  - by Horace Ho

  In a recent project, I have to maintain some PHP code. I set up a development server and installed MySQL, Apache, PHP, ..etc. The program is terminated with an error: Unknown column _ _ _ in 'on clause' Cannot select .... Google shows that it's a change of syntax around JOINs, parentheses are needed. As you may imagine, fixing all that PHP SQL strings will be the last resort. _< Is is possible to config MySQL 5 to run at MySQL 4 compatible mode? Or even better, for only one database? Thanks! p.s. Since we are going to host the code on a new production server (MySQL 5 on a CentOS box), the chance to install MySQL 4 on the new server might be slim.

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• Java, How to Instance HttpCookie from a String, any convenient ways?

  - by user435657

  Hi all, I have got a cookie string from HTTP response header like the following line: name=value; path=/; domain=.g.cn; expire=... I can parse the above line to key-value pairs, and, also it's easy to set the name and value to HttpCookie instance as this pair comes the first. But how to set the other pairs since I don't know which set-method corresponds to the name of the next name-value pair. Traverse all possible keys a cookie may contian and call the matched set-method, like below snippet? if (key.equalsIgnoreCase("path")) cookie.setPath(value); else if (key.equalsIgnoreCase("domain")) cookie.setDomain(value); That's foolish, any convenient ways? Thanks in advance.

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• htaccess redirect conditions

  - by user271619

  I figured out how to redirect someone, if they happen across one particular filename: Redirect /index.php http://www.website.com/#myaccount As you can see, I'm pretty much redirecting that visitor to the same page, which doesn't work. It's an endless look, regardless of the slight/minuscule change. I want to force someone to see a part of the page, by adding the hash. (it's a little weird, I know) I'm guessing this may be a time to use regex in the htaccess file. But I thought I'd ask if there's a simpler way to do this from the htaccess file.

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• SQL Server 2000, how to automate import data from excel

  - by Stan

  Say the source data comes in excel format, below is how I import the data. Converting to csv format via MS Excel Roughly find bad rows/columns by inspecting backup the table that needs to be updated in SQL Query Analyzer truncate the table (may need to drop foreign key constraint as well) import data from the revised csv file in SQL Server Enterprise Manager If there's an error like duplicate columns, I need to check the original csv and remove them I was wondering how to make this procedure more effecient in every step? I have some idea but not complete. For step 2&6, using scripts that can check automatically and print out all error row/column data. So it's easier to remove all errors once. For step 3&5, is there any way to automatically update the table without manually go through the importing steps? Could the community advise, please? Thanks.

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• How to delay shutdown of an application when user logs off or shuts down Windows?

  - by badpanda

  I am writing an application that runs in the background from startup to shutdown, and in some circumstances I need the application to display a dialogue for the user to choose whether or not to continue shutting down. This application will only be running on Windows, but may be running on any version from 2000 onward. While I have certainly done some research on the topic, the information regarding the way that windows handles application shut down (http://msdn.microsoft.com/en-us/library/ms700677(VS.85).aspx) seems to be a bit scattered. If anyone has an example of the best way to handle this, or additional knowledge regarding the topic, I would very much appreciate it (I have very little experience with C#). Thanks!! badPanda

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• Sqlite + Java: table not updating

  - by Ben L

  I'm using a Java wrapper for SQLite called SQLiteJDBC - this may have some bearing on any answers... I have a table which I've displayed in a GUI, within that UI I have a button for the fields for an individual row of that table. When I save my changes I do this... Statement stmt = connection.createStatement(); stmt.execute("update 'tableName' set 'fieldName'=1 where userid=1"); int updateCount = stmt.getUpdateCount(); My connection is valid, I get no exceptions thrown and getUpdateCount() returns '1' indicating that one row has been updated. However my table is not updated. I've spent the last few hours trying to work out what's going on but I'm not having any luck. Help!!

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• Developing web app, question for mobile developers

  - by Stephen Kellett

  I'm going to develop a web app that I expect some people will also end up wanting to view on their phones. The UI will be fairly straightforward (no frames, just CSS/HTML). May have a bit of Flash, but not for the first version. My question is, for testing viewing of the web app on mobile devices what devices would you recommend that I test on (and thus, most likely, have to purchase)? Windows Mobile iPhone Android Other? or can I use emulators for any/all of these? Note that I'm not developing a platform (android, iPhone) specific app, just a web application that I expect will also be accessed from a mobile phone. I apologise if this seems like a niave/stupid question, but this hobby project is totally away from my commercial experience and I just don't know the answers to these questions, hence asking here. Thanks for reading.

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• How can I set different Tooltip text for each item in a listbox?

  - by Michael Lang

  I have a listbox that is databound to a Collection of objects. The listbox is configured to display an identifier property of each object. I would like to show a tooltip with information specific to the item within the listbox that is being hovered over rather than one tooltip for the listbox as a whole. I am working within WinForms and thanks to some helpful blog posts put together a pretty nice solution, which I wanted to share. I'd be interested in seeing if there's any other elegant solutions to this problem, or how this may be done in WPF.

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• Seeking FOSS user admin code

  - by Mawg

  It must be a fairly standard wheel, so I'd rather not reinvent it. Create/modify/delete users. Ditto their passwords & maybe enforce password change every X days. Also, create groups, like "sales", "support", etc and add/remove users. The only unique part should be what they have permission to do (visit certain parts of the site after login, etc) And I'd like to store admin data in an ODBC compliant database (MySql to start with, but I may move on). Is this a new wheel? There doesn't seem to be much of anything on SourceForge, but if I could find something established and trusted I wouldn't even mind paying a few $100 as a trade of for the time needed to develop & test it.

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• Security of PHP script, embedded or otherwise

  - by typoknig

  Hi all, I am curious about the security of PHP on an HTML webpage where PHP code is embedded (a webpage that would exist on the server as "webpage.php") or on a PHP script that may be referenced by an HTML page (that is, a PHP script that is not actually part of a webpage that exists on the server as "something.php" and is referenced by "webpage.html"). Getting to the point, let us say that if the source code of my PHP script is known by anyone it would be a very big problem. I know that when you view the source of a PHP page in a browser the PHP script is not shown, but what if the PHP server failed and the HTML still loaded (is this even possible), would a user be able to see the PHP script? To be more general, is there ANY possible way that a user could access the source of a PHP script from a web browser, and if so, how do I prevent it?

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• Oracle 10g multiple DELETE statements

  - by bmw0128

  I'm building a dml file that first deletes records that may be in the table, then inserts records. Example: DELETE from foo where field1='bar'; DELETE from foo where fields1='bazz'; INSERT ALL INTO foo(field1, field2) values ('bar', 'x') INTO foo(field1, field2) values ('bazz', 'y') SELECT * from DUAL; When I run the insert statement by itself, it runs fine. When I run the deletes, only the last delete runs. Also, it seems to be necessary to end the multiple insert with the select, is that so? If so, why is that necessary? In the past, when using MySQL, I could just list multiple delete and insert statements, all individually ending with a semicolon, and it would run fine.

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• iPhone - UIScrollView is scrolling before UIDatePicker that is placed inside it

  - by Oliver

  Hello, I have a UIDatePicker inside a UIScrollView. But the UIDatePicker does not respond to scroll touches. It's the scrollview that is scrolling. Reading some docs on the net, I've set "Delay Content Touches" to NO, an now I see the datepicker starting a slight scroll, but it's still the scrollview that take the final word. I have some place on the screen where the user can touch to scroll the view. So how may I separate the two kind of scrolls ans make the datepicker scroll in a normal way ? Thank you for your help

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• Why does cisco IOS require domain-name to be set before SSH keys can be generated?

  - by Daniel Papasian

  Is there a technical reason why IOS requires the device's domain-name to be set (via ip domain-name) before an SSH key can be generated? Is the domain-name used in any way in the generation of the key? Is there any way to force the generation of a key before the domain name is set? UPDATE: Myself (before I posted this question) and others in your answer seem to think it may be used as either a salt or a source of entropy for the key. Wouldn't the domain-name be very predictable? This doesn't seem like a suitable source of entropy.

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• What to return when making an Ajax request

  - by Russell

  When we return data from an Ajax call, is it better to return a document containing HTML to display on the page or return an Xml/json data which can be processed? I know different circumstances may determine what 'better' means, but I really want to know which will be more appropriate for different circumstances. I am working on the framework for a large ASP .Net application, using jQuery Ajax (forms plugin). My initial thought was to return the data as Xml, then process accordingly. Then this increases processing required in Javascript, to populate the page. I am trying to balance flexible, clear and simple. Thanks in advance for your knowledge and information.

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• Is the last digit of a phone number random?

  - by sehugg

  I have a telephony app which has a prompt which requires user choice. I made the app select one of 10 different phone prompts based on the last digit of the caller's phone number. Then I measure whether the user responds to the prompt (accept) or decides to skip to the next step (reject). I thought this would work well enough as a random selection, but I think I may be wrong. What I'm finding is that the exact same prompt has a dramatically different response rate (25% vs 35%) for two different last digits. Now I'm curious why this is. Does anyone know how phone numbers are assigned and why the last digit would be significant?

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• How to inflate one view with an layout

  - by Michal Dymel

  Hi, I have a layout defined in XML. It contains also: <RelativeLayout android:id="@+id/item" android:layout_width="fill_parent" android:layout_height="wrap_content" /> I would like to inflate this RelativeView with other XML layout file. I may use different layouts depending on a situation. How should I do it? I was trying different variations of RelativeLayout item = (RelativeLayout) findViewById(R.id.item); item.inflate(...) But none of them worked fine. Heeelp ;)

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• Looking for ideas on automatically arranging a set of objects (furniture) in a virtual room in AS3

  - by raf

  First of all, I don't want to visually arrange 3D models dragging them with the mouse, all I want is: Given a room of certain dimensions (L,W,H) and given a set of elements like beds, chairs, etc (with L,W,H dimensions, of course) I want to automatically arrange those elements to take advantage of the space as much as I can. So I want to be able to put as much furniture as I can in a given room. At the end I need to represent the arranged items visually, inside the room. My first thought was to use an array of items and sorting it with array.sortOn(["l","w","h"] Array.NUMERIC) and then define a gap between the objects and make the maths to put the objects one next to another, etc. but that isn't a good approach because some items may be placed on top of another ones (boxes of the same size, boxes on top of tables, etc). I really don't have experience on 3D programming, that's why I'm asking for help. Thanks in advance.

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• Suppress error with @ operator in PHP

  - by Mez

  In your opinion, is it ever valid to use the @ operator to suppress an error/warning in PHP whereas you may be handling the error? If so, in what circumstances would you use this? Code examples are welcome. Edit: Note to repliers. I'm not looking to turn error reporting off, but, for example, common practice is to use @fopen($file); and then check afterwards... but you can get rid of the @ by doing if (file_exists($file)) { fopen($file); } else { die('File not found'); } or similar. I guess the question is - is there anywhere that @ HAS to be used to supress an error, that CANNOT be handled in any other manner?

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