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Articles indexed in April 2010

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  • Group By Multiple Columns - LINQ

    - by Nev_Rahd
    How can I do GroupBy Multiple Columns in LINQ Something as in SQL : SELECT * FROM <TableName> GROUP BY <Column1>,<Column2> How Can i convert below to LINQ QuantityBreakdown ( MaterialID int, ProductID int, Quantity float ) INSERT INTO @QuantityBreakdown (MaterialID, ProductID, Quantity) SELECT MaterialID, ProductID, SUM(Quantity) FROM @Transactions GROUP BY MaterialID, ProductID Thanks

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  • PHP Session when using desktop app

    - by Jonathan
    In this question I asked how to POST to a php file form a vb.net app: http://stackoverflow.com/questions/2615335/post-to-webpage-in-vb-net-win-forms-desktop-not-asp-net So now I've logged in the user user by posting their username and password to the php file, the php file then does security/checks they exist/etc and if both username and password are correct is stores the user ID in a session variable. Now if the vb.net app tries to download data off a page which needs the user to logged in, it checks this by doing: if (!isset($_SESSION['uid'])) { header("Location: index.php"); } However after having logged correctly in the app the session variable is not set. How does session work with a vb.net app like this? When the user logs in successfully should I download the user id and keep it in the vb.net app and then post it to each page that requires authentication?

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  • mysql PHP query question

    - by camran
    Ok, i have a problem here... I am sending values of drop down lists via ajax to this PHP file. Now I want to search a mysql database using these values, which I have managed to do, BUT, only if I set the values to something... Take a look: $query = "SELECT * FROM cars_db WHERE price BETWEEN '$cars_price_from' AND '$cars_price_to' AND year BETWEEN '$cars_year_from' AND '$cars_year_to' AND mileage BETWEEN '$cars_mileage_from' AND '$cars_mileage_to' AND gearbox = '$cars_gearbox' AND fuel = '$cars_fuel'"; now, what if the user doesnt select any "price_from" or "year_from"... The fields are only optional, so if the user doesnt enter any "price from" or "year from", then the user wants ALL cars to show... Do I have to write a query statement for each case or is there another way?

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  • Automatically insert Cell References from one Sheet into other Sheet in OOO Calc

    - by user123456
    I have a spreadsheet in Open Office 3.0 Calc. The spreadsheets consist of the first sheet and an arbitrary number of additional sheets, each collecting data for a specific month. The Month sheets have an identical structure. The first sheet is supposed to provide an overview to the most important numbers in the month sheets. What I would like to do is this: Whenever I add a Month sheet, I want it to appear automatically in the Overview sheet with the structure given below. So, for each Month sheet, copy or reference some of the cells into the Overview sheet: {Referenced Sheet Name} | Fixed Header1 | Fixed Header2 | Fixed Header3 Fixed Label 1 | {CellRef 1} | {CellRef 2} | {CellRef 3} Fixed Label 2 | {CellRef 4} | {CellRef 5} | {CellRef 6} I know how do to this for just one sheet by hand, but I have no clue how to make OOO do this automatically for me. Is it possible at all? Any help appreciated. Thanks.

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  • get data from to tables !

    - by mehdi
    i want to sort my users based on most viewed profile in my user list . i have these two tables but i don't know how to right correct query to make this happen . i used grouping like this : $sql ="select userid , count(*) form profile_visit group by userid " ; but it's not make sense to me , i don't think this query will help me at all . +-----------+---------------+------+-----+-------------------+----------------+ | Field | Type | Null | Key | Default | Extra | +-----------+---------------+------+-----+-------------------+----------------+ | userid | int(11) | NO | PRI | NULL | auto_increment | | username | varchar(128) | NO | | NULL | | | password | char(40) | NO | | NULL | | | email | varchar(128) | NO | | NULL | | | name | varchar(256) | NO | | NULL | | | lastname | varchar(256) | NO | | NULL | | | job | varchar(256) | NO | | NULL | | | birthdate | varchar(100) | NO | | NULL | | | address | varchar(1024) | NO | | NULL | | | website | varchar(100) | NO | | NULL | | | tel | varchar(100) | NO | | NULL | | | role | tinyint(1) | NO | | 0 | | | reg_date | timestamp | NO | | CURRENT_TIMESTAMP | | +-----------+---------------+------+-----+-------------------+----------------+ and profile_visit table like this +------------+-------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +------------+-------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | ip_address | varchar(70) | NO | | NULL | | | userid | int(11) | NO | | NULL | | +------------+-------------+------+-----+---------+----------------+

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  • Markdown heading regex

    - by Jorm
    I like markdowns clean "tags", put i dont want to use their huge class they got. I just want some simple tags like the heading regex but i cant find it in the file. Ive been playing around with http://gskinner.com/RegExr/ but its damn hard So I'm looking for a regex that will match '# text' and close it after a linebreak (instead of </blabla> in bbcode) Hi How you doing? Anyone got this?

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  • (Fluent) NHibernate Security Exception - ReflectionPermission

    - by PeterEysermans
    I've upgraded an ASP.Net Web application to the latest build of Fluent NHibernate (1.0.0.636) and the newest version of NHibernate (v2.1.2.4000). I've checked a couple of times that the application is running in Full trust. But I keep getting the following error: Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [SecurityException: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.] System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0 System.Security.CodeAccessPermission.Demand() +54 System.Reflection.Emit.DynamicMethod.PerformSecurityCheck(Type owner, StackCrawlMark& stackMark, Boolean skipVisibility) +269 System.Reflection.Emit.DynamicMethod..ctor(String name, Type returnType, Type[] parameterTypes, Type owner, Boolean skipVisibility) +81 NHibernate.Bytecode.Lightweight.ReflectionOptimizer.CreateDynamicMethod(Type returnType, Type[] argumentTypes) +165 NHibernate.Bytecode.Lightweight.ReflectionOptimizer.GenerateGetPropertyValuesMethod(IGetter[] getters) +383 NHibernate.Bytecode.Lightweight.ReflectionOptimizer..ctor(Type mappedType, IGetter[] getters, ISetter[] setters) +108 NHibernate.Bytecode.Lightweight.BytecodeProviderImpl.GetReflectionOptimizer(Type mappedClass, IGetter[] getters, ISetter[] setters) +52 NHibernate.Tuple.Component.PocoComponentTuplizer..ctor(Component component) +231 NHibernate.Tuple.Component.ComponentEntityModeToTuplizerMapping..ctor(Component component) +420 NHibernate.Tuple.Component.ComponentMetamodel..ctor(Component component) +402 NHibernate.Mapping.Component.BuildType() +38 NHibernate.Mapping.Component.get_Type() +32 NHibernate.Mapping.SimpleValue.IsValid(IMapping mapping) +39 NHibernate.Mapping.RootClass.Validate(IMapping mapping) +61 NHibernate.Cfg.Configuration.ValidateEntities() +220 NHibernate.Cfg.Configuration.Validate() +16 NHibernate.Cfg.Configuration.BuildSessionFactory() +39 FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs:93 Anyone had a similar error? I've seach the web / stackoverflow / NHibernate forums but only found people who had a problem when running in medium trust mode, not full trust. I've been developing for several months on this application on this machine with previous versions of Fluent NHibernate and NHibernate. The machine I'm running this on is 64-bit, you never know that this is relevant.

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  • How to send KeyEvents trough an input method service to a Dialog, or a Spinner menu?

    - by shutdown11
    I'm trying to implement an input method service that receives intents sent by a remote client, and in response to those sends an appropriate KeyEvent. I'm using in the input method service this method private void keyDownUp(int keyEventCode) { getCurrentInputConnection().sendKeyEvent( new KeyEvent(KeyEvent.ACTION_DOWN, keyEventCode)); getCurrentInputConnection().sendKeyEvent( new KeyEvent(KeyEvent.ACTION_UP, keyEventCode)); } to send KeyEvents as in the Simple Sofykeyboard Sample, and it works in the home, in Activities... but it doesn't works when a Dialog or the menu of a Spinner is in foreground. The events is sent to the parent activity behind the Dialog. Is there any way to send keys and control the device like using the hardware keys from an input method?

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  • Does this mimic perfectly a function template specialization?

    - by zeroes00
    Since the function template in the following code is a member of a class template, it can't be specialized without specializing the enclosing class. But if the compiler's full optimizations are on (assume Visual Studio 2010), will the if-else-statement in the following code get optimized out? And if it does, wouldn't it mean that for all practical purposes this IS a function template specialization without any performance cost? template<typename T> struct Holder { T data; template<int Number> void saveReciprocalOf(); }; template<typename T> template<int Number> void Holder<T>::saveReciprocalOf() { //Will this if-else-statement get completely optimized out if(Number == 0) data = (T)0; else data = (T)1 / Number; } //----------------------------------- void main() { Holder<float> holder; holder.saveReciprocalOf<2>(); cout << holder.data << endl; }

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  • One url to image, few results

    - by Misiur
    Hi! I'm trying to show programmers that some captchas are too weak, and i'm breaking them. Now i've got something like this: Function: <?php function cbreak($image) { $info = getimagesize($image); $width = $info[0]; $height = $info[1]; $img = imagecreatefromgif($image); $map = array(); for($y=0; $y<$height; $y++) { for($x=0; $x<$width; $x++) { $color = imagecolorsforindex($img, imagecolorat($img, $x, $y)); $map[$x][$y] = ($color['red'] + $color['blue'] + $color['green'] > 750) ? TRUE : FALSE; } } echo '<pre>'; for($y=0; $y<$height; $y++) { for($x=0; $x<$width; $x++) { echo ($map[$x][$y] == TRUE) ? 'X' : '-'; } echo '<br>'; } echo '</pre>'; $sum = ''; for($x=0; $x<$width; $x++) { $count = 0; for($y=0; $y<$height; $y++) { if($map[$x][$y] == TRUE) $count++; } $sum .= ($count == 0) ? 'X' : $count; } $sum = preg_replace('#X+#', 'X', $sum); $sum = trim($sum, 'X'); $letters = explode('X', $sum); $patterns = array( /* Still not here */ ); $token = ''; for($i=0; $i<count($letters); $i++) { $token .= $patterns[$letters[$i]]; } echo $token; } ?> Action: <?php $cl = curl_init("http://www.takeagift.pl/rejestracja"); curl_setopt($cl, CURLOPT_RETURNTRANSFER, 1); $r = curl_exec($cl); $pattern = "/src=[\"'].*[\"']?/i"; preg_match_all($pattern, $r, $images); $c = array(); for($i=0; $i<sizeof($images[0]); $i++) { if(strstr($images[0][$i], 'captcha') !== false) { $c = $images[0][$i]; } } $s1 = substr($c, 0, -8); echo $s1."<br />"; $s = substr($s1, 5, -1); echo $s."<br />"; curl_close($cl); ?> <img src="http://www.takeagift.pl/includes/modules/captcha.php?1270900968" /><br /> <img src="http://www.takeagift.pl/includes/modules/captcha.php?1270900968" /><br /> <img src="http://www.takeagift.pl/includes/modules/captcha.php?1270900968" /><br /> <img src="http://www.takeagift.pl/includes/modules/captcha.php?1270900968" /><br /> <img src="http://www.takeagift.pl/includes/modules/captcha.php?1270900968" /><br /> <?php include('cb.php'); cbreak("http://www.takeagift.pl/includes/modules/captcha.php?1270900968"); ?> Don't look at preg_match i still haven't learned regexp. So as You can see links are same: (captcha.php?1270900968), but the result - not. Help me, please (i'm not doing it to spam this portal)

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  • How to return a record from function, executed by INSERT/UPDATE rule (trigger)?

    - by seas
    Do the following scheme for my database: create sequence data_sequence; create table data_table { id integer primary key; field varchar(100); }; create view data_view as select id, field from data_table; create function data_insert(_new data_view) returns data_view as $$declare _id integer; _result data_view%rowtype; begin _id := nextval('data_sequence'); insert into data_table(id, field) values(_id, _new.field); select * into _result from data_view where id = _id; return _result; end; $$ language plpgsql; create rule insert as on insert to data_view do instead select data_insert(new); Then type in psql: insert into data_view(field) values('abc'); Would like to see something like: id | field ----+--------- 1 | abc Instead see: data_insert ------------- (1, "abc") Is it possible to fix this somehow? Thanks for any ideas. Ultimate idea is to use this in other functions, so that I could obtain id of just inserted record without selecting for it from scratch. Something like: insert into data_view(field) values('abc') returning id into my_variable would be nice but doesn't work with error: ERROR: cannot perform INSERT RETURNING on relation "data_view" HINT: You need an unconditional ON INSERT DO INSTEAD rule with a RETURNING clause. I don't really understand that HINT. I use PostgreSQL 8.4.

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  • Web based client for Amazon S3

    - by Dick Lebavo
    We are looking for a secure online solution to access our files stored on Amazon S3. We have about 3K files, mostly media and documents, that we need to make available to our employees on the move. We don't want to develop anything in-house if there is an existing solution. Please note that our employees are not technologically minded , so a simple web based upload/download GUI would work the best.

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  • Testing PayPal certificate on a different domain

    - by PHP thinker
    I have a PP-enabled site that needs to be tested. I've already tested it with Sandbox credentials and it works ok. The next step is to test it with live PayPal credentials on test server. Here I hit a wall, because using real credentials from liveserver.com on test.liveserver.com gives me error of "malformed url" (which as I read stands for "invalid credentials"). And here is the question: are PayPal credentials domain-bound? Can I get error message because I am using live api credentials on a subdomain(different domain)?

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  • Question About SQL Query

    - by Ameer
    I am using the below statement to generate age of a person in Oracle SQL and my question is below. SELECT TO_NUMBER(TO_CHAR(CURRENT_DATE,'YYYY'))-TO_NUMBER(TO_CHAR(BIRTH_DATE,'YYYY')) FROM NAME WHERE NAME_ID =NAME_ID This statement is only correct upto so far that I need a statement which could count months and even days in order to get the age.

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  • Why do I have to specify the -i switch with a backup extension when using ActivePerl?

    - by Zaid
    I cannot get in-place editing Perl one-liners running under ActivePerl to work unless I specify them with a backup extension: C:\> perl -i -ape "splice (@F, 2, 0, q(inserted text)); $_ = qq(@F\n);" file1.txt Can't do inplace edit without backup. The same command with -i.bak or -i.orig works a treat, but also creates an unwanted backup file in the process. Has anyone else faced similar issues? Is there a way around this?

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  • UITableView section index overlaps search bar

    - by Snej
    Hi: I want to display a section index in an UITableView with a search bar in the table view header (not section header). But the index strip is now overlapping the search bar. Is there an elegant solution to avoid this and let the index start below the table header?

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  • How do I pass data from a BroadcastReceiver through to an Activity being started?

    - by Tom Hume
    I've got an Android application which needs to be woken up sporadically throughout the day. To do this, I'm using the AlarmManager to set up a PendingIntent and have this trigger a BroadcastReceiver. This BroadcastReceiver then starts an Activity to bring the UI to the foreground. All of the above seems to work, in that the Activity launches itself correctly; but I'd like the BroadcastReceiver to notify the Activity that it was started by the alarm (as opposed to being started by the user). To do this I'm trying, from the onReceive() method of the BroadcastReceiver to set a variable in the extras bundle of the intent, thus: Intent i = new Intent(context, MyActivity.class); i.putExtra(wakeupKey, true); i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(i); In the onResume() method of my Activity, I then look for the existence of this boolean variable: protected void onResume() { super.onResume(); String wakeupKey = "blah"; if (getIntent()!=null && getIntent().getExtras()!=null) Log.d("app", "onResume at " + System.currentTimeMillis() + ":" + getIntent().getExtras().getBoolean(wakeupKey)); else Log.d("app", "onResume at " + System.currentTimeMillis() + ": null"); } The getIntent().getExtras() call in onResume() always returns null - I don't seem to be able to pass any extras through at all in this bundle. If I use the same method to bind extras to the PendingIntent which triggers the BroadcastReceiver however, the extras come through just fine. Can anyone tell me what's different about passing a bundle from a BroadcastReceiver to an Activity, as opposed to passing the bundle from an Activity to a BroadcastReceiver? I fear I may be doing something very very obvious wrong here...

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  • Type mismatch in expression in Delphi 7 on SQL append

    - by Demonick
    I have a code, that checks the current date when a form is loaded, performs a simple calculation, and appends a SQL in Delphi. It works on Windows 7 with Delphi 7, and on another computer with Xp, but doesn't on 3 other computers with Xp. When the form is loaded it shows a "Type mismatch in expression", and points to the line after the append. What could be the problem? procedure TfmJaunumi.FormCreate(Sender: TObject); var d1, d2: TDate; begin d1:= Date; d2:= Date-30; With qrJaunumi do begin Open; SQL.Append('WHERE Sanem_datums BETWEEN' + #39 + DateToStr(d1) + #39 + 'AND' + #39 + DateToStr(d2) + #39); Active := True; end; end;

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  • How would I create a silverlight control for tagging content similar to StackOverflow?

    - by Dan Ryan
    I am new to Silverlight. How would I go about creating a control for users to tag content. I would like it to work like it does it StackOverflow i.e. Autocomplete and when you press space it inserts the tag in a box with a remove button. I want the control to be bindable to a collection of strings. If someone can just point me in the right direction to get me started I would be very grateful.

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  • encodeURIComponent is really useful?

    - by Marco Demaio
    Something I still don't understand when perfoming an http-get request to the server is what the advantage is in using JS fucntion encodeURIcomponent to encode each component of the http-get. Doing some tests I saw the server (using PHP) gets the values of the http-get request properly also if I don't use encodeURIcomponent!!! Obviuosly I still need to encode at client level the special character & ? = / : otherwise an http-get value like this "peace&love=virtue" would be considered as new key value pair of the http-get request instead of a one single value. But why does encodeURIcompenent encodes also many other charcaters like 'è' for example wich is translated into %C3%A8 that must be decoded on a PHP server using the utf8_decode function. By using encodeURIcomponent all values of the http-get request are utf8 encoded, therefor when getting them in PHP I have to call each time the utf8_decode function on each $_GET value which is quite annoying. Why can't we just encode only the & ? = / : charcaters??? see also: http://stackoverflow.com/questions/2607946/js-encodeuricomponent-result-different-from-the-one-created-by-form It shows that encodeURIComponent does not even encode properly because a simple browser FORM GET encodes charactrs like '€', in different way. So I still wonder what does this encodeURIComponent is for?

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