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• Can I use Data URLs in Android 2.1's Webkit-based browser?

  - by Sven Haiges

  Hi all, I am writing a tutorial about the HTML5 Canvas for mobile and did some basic tests. While I can call the getDataURL() Method on an iPhone's HTML5 Canvas Element, it does not seem to return the data URL on Android 2.1 (Google Nexus One) and it's webkit-based default browser. Here is the sample: var dataURL = canvas.toDataURL(); var img = document.createElement('img'); img.setAttribute('src', dataURL); document.getElementById('box').appendChild(img); This will work on iPhone, it will add a new image element with the same content as the canvas. It does nothing or fails on Android 2.1. Has anyone ever gotten this to work? I am also wondering if anyone could help me with understanding the WebKit Build numbers and what it means with regards to what features I can expect. For the iphone, I see a build number of 528.18, on Android 2.1's Browser I see (from the user agent strign) a WebKit build 530.17. So it looks Android 2.1's webkit browser is more up to date, still some features work on iPhone's webkit but not on Android. Does this comparison just make no sense? Thanx all!

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• PRISM - Creating mouseoverbehavior causes a Silverlight library to not be visible in main Silverligh

  - by RHLopez

  Created a simple Silverlight 4 application (SimpleApp) then added a Silverlight 4 library (LibraryA). Added code to the library (LibraryA) to implement MouseOverBehavior by inheriting from CommandBaseBehavior along with the appropriate attached property class/methods. Added reference in SimpleApp to LibraryA and went to MainPage.xaml to add namespace reference but it does not show up with Intellisense. Typing the namespace manually and then adding the attached MouseOver command works as it should as far as intellisense showing my attached property name, i.e. ... commands:MouseOver.Command="{Binding MousedOver}". However when I try to run it I get a XAML parser error saying that the "Command" attached property does not exist in MouseOver. If I move my class definitions from LibraryA to SimpleApp then everything works. I removed everything from LibraryA and just put one class with this in it: public class MouseOverBehavior : CommandBehaviorBase<Control> { public MouseOverBehavior(Control element) : base(element) {} } With this simple class in LibraryA it will not show up in XAML intellisense in SimpleApp. XAML intellisense works with other libraries that I have written that don't use PRISM. Don't know what I am missing hopefully it's something simple. I am using the latest SL4 build for PRISM change set 42969. Visual Studio 2010 RTM Professional in Windows 7 Ultimate 64-bit.

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• Generating permutation in Python with specific rule

  - by twfx

  Let say a=[A, B, C, D], each element has a weight w, and is set to 1 if selected, 0 if otherwise. I'd like to generate permutation in the below order 1,1,1,1 1,1,1,0 1,1,0,1 1,1,0,0 1,0,1,1 1,0,1,0 1,0,0,1 1,0,0,0 Let's w=[1,2,3,4] for item A,B,C,D ... and max_weight = 4. For each permutation, if the accum weight has exceeded max_weight, stop calculation for that permutation, move to next permutation. For eg. 1,1,1 --> 6 > 4, exceeded, stop, move to next 1,1,1 --> 6 > 4, exceeded, stop, move to next 1,1,0,1 --> 7 > 4 finished, move to next 1,1,0,0 --> 3 finished, move to next 1,0,1,1 --> 8 > 4, finished, stop, move to next 1,0,1,0 --> 4 finished, move to next 1,0,0,1 --> 5 > 4 finished, move to next 1,0,0,0 --> 1 finished, move to next [1,0,1,0] is the best combination which does not exceeded max_weight 4 My questions are What's the algorithm which generate the required permutation? Or any suggestion I could generate the permutation? As the number of element can be up to 10000, and the calculation stop if the accum weight for the branch exceeds max_weight, it is not necessary to generate all permutation first before the calculation. How can the algo in (1) generate permutation on the fly?

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• Why not systematically attach event in WPF instead of using delegate ?

  - by user310291

  For a button to handle event, we can add a delegate to the click property of the button: this.button1.Click += new System.EventHandler(this.button1_Click); But in WPF contrary to Winform, you can also attach a handler http://msdn.microsoft.com/en-us/magazine/cc785480.aspx So why not do so for the button ? Is performance better in first case maybe ? Update: I mean this Attached Events In order to enable elements to handle events that are declared in a different element, WPF supports something called attached events. Attached events are routed events that support a hookup in XAML on elements other than the type on which the event is declared. For example, if you want the Grid element to listen for a Button.Click event to bubble past, you would simply hook it up like the following: <Grid Button.Click="myButton_Click"> <Button Name="myButton" >Click Me</Button> </Grid> The resulting code in the compile-time-generated partial class now looks like this: #line 5 "..\..\Window1.xaml" ((System.Windows.Controls.Grid)(target)).AddHandler( System.Windows.Controls.Primitives.ButtonBase.ClickEvent, new System.Windows.RoutedEventHandler(this.myButton_Click));

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• CSS semantics; selecting elements directly or via order

  - by Joshua Cody

  Perhaps this question has been asked elsewhere, but I'm unable to find it. With HTML5 and CSS3 modules inching closer, I'm getting interested in a discussion about the way we write CSS. Something like this where selection is done via element order and type is particularly fascinating. The big advantage to this method seems to be complete modularization of HTML and CSS to make tweaks and redesigns simpler. At the same time, semantic IDs and classes seem advantageous for sundry reasons. Particularly, direct linking, JS targeting, and shorter CSS selectors. Also, it seems selector length might be an issue. For instance, I just wrote the following, which would be admittedly easier using some semantic HTML5 elements: body>div:nth-child(2)>div:nth-child(2)>ul:nth-child(2)>li:last-child So what say you, Stack Overflow? Is the future of CSS writing focused on element order and type? Or are IDs and classes and the current ways here to stay? (I'm well aware the IDs and classes have their place, although I am interested to hear more ways you think they'll continue to be necessary. The discussion I'm interested in is bigger-picture and the ways writing CSS is changing.)

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• How to print a Perl 2-dimensional array?

  - by Matt Pascoe

  I am trying to write a simple Perl script that reads a *.csv, places the rows of the *.csv file in a two dimensional array, and then prints on item out of the array and then prints a row of the array. #!/usr/bin/perl use strict; use warnings; open(CSV, $ARGV[0]) || die("Cannot open the $ARGV[0] file: $!"); my @row; my @table; while(<CSV>) { @row = split(/\s*,\s*/, $_); push(@table, @row); } close CSV || die $!; foreach my $element ( @{ $table[0] } ) { print $element, "\n"; } print "$table[0][1]\n"; When I run this script I receive the following error and nothing prints: Can't use string ("1") as an ARRAY ref while "strict refs" in use at ./scripts.pl line 16. I have looked in a number of other forums and am still not sure how to fix this issue. Can anyone help me fix this script?

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• Adding database results to array

  - by Jason

  Hi all, I am having a mental blank here and cannot for the life of me figure out a solution. My scenario is that I am programming in PHP and MySQL. I have a database table returning the results for a specific orderid. The query can return a maximum of 4 rows per order and a minimum of 1 row. Here is an image of how I want to return the results. I have all the orderdetails (Name, address) ect stored in a table named "orders". I have all the packages for that order stored in a table named "packages". What I need to do is using a loop I need to have access to each specific element of the database results (IE package1, itemstype1, package2, itemtype2) ect I am using a query like this to try and get hold of just the "number of items: $sql = "SELECT * FROM bookings_onetime_packages WHERE orderid = '".$orderid."' ORDER BY packageid DESC"; $total = $db-database_num_rows($db-database_query($sql)); $query = $db-database_query($sql); $noitems = ''; while($info = $db-database_fetch_assoc($query)){ $numberitems = $info['numberofitems']; for($i=0; $i $noitems .= $numberitems[$i]; } } print $noitems; I need to have access to each specific element because I them need to create fill out a pdf template using "fpdf". I hope this makes sense. Any direction would be greatly appreciated.

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• Jquery: Create hidden attributes? I need to reduce tag bulkyness.

  - by Dan

  I'm sure we've all done this before: <a id="232" rel="link_to_user" name="user_details" class="list hoverable clickable selectable"> USER #232 </a> But then we say, oh my, I need more ways to store tracking info about this div! <a id="232-343-22" rel="link_to_user:fotomeshed" name="user_details" class="groupcolor-45 elements-698 list hoverable clickable selectable"> User: John Doe </a> And the sickness keeps growing. We just keep on packing it inside that poor little element and it's attributes. All so we can keep track of who it is. So with my limited knowledge of JS, someone please tell me how to do something like this: <a id="33">USER #33</a> $(#33).attr({title:'User Record','username':'john', 'group_color':'green', 'element_num':78}); So here we just added what I would call invisible attributes, because we just played God and made those attributes up on the fly like it was no problem. The cool part is that these would be kept in their own little object somewhere in variable land. NOT in the tag itself. Then later on, in a code nested far far away, be able to say, oh, i wonder what group_color John is... user_group_color = $(table).find(a['username':'john']).attr('group_color'); THEN BAM!!!! POW!!!! alert(user_group_color + " is a bitchin color!"); You get to know his group color... all without adding a bunch of bloated element tracking nonsense into our tags. So does this sort of thing exist? If not, how do I make it?

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• calloc v/s malloc and time efficiency

  - by yCalleecharan

  Hi, I've read with interest the post "c difference between malloc and calloc". I'm using malloc in my code and would like to know what difference I'll have using calloc instead. My present (pseudo)code with malloc: Scenario 1 int main() { allocate large arrays with malloc INITIALIZE ALL ARRAY ELEMENTS TO ZERO for loop //say 1000 times do something and write results to arrays end for loop FREE ARRAYS with free command } //end main If I use calloc instead of malloc, then I'll have: Scenario2 int main() { for loop //say 1000 times ALLOCATION OF ARRAYS WITH CALLOC do something and write results to arrays FREE ARRAYS with free command end for loop } //end main I have three questions: Which of the scenarios is more efficient if the arrays are very large? Which of the scenarios will be more time efficient if the arrays are very large? In both scenarios,I'm just writing to arrays in the sense that for any given iteration in the for loop, I'm writing each array sequentially from the first element to the last element. The important question: If I'm using malloc as in scenario 1, then is it necessary that I initialize the elements to zero? Say with malloc I have array z = [garbage1, garbage2, garbage 3]. For each iteration, I'm writing elements sequentially i.e. in the first iteration I get z =[some_result, garbage2, garbage3], in the second iteration I get in the first iteration I get z =[some_result, another_result, garbage3] and so on, then do I need specifically to initialize my arrays after malloc?

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• jQuery problem with change event and IE8

  - by Marcus

  There is a bug in jQuery 1.4.2 that makes change event on select-element getting fired twice when using both DOM-event and a jQuery event, and this only on IE7/8. Here is the test code: <html> <head> <script src="http://code.jquery.com/jquery-1.4.2.js" type="text/javascript"></script> <script type="text/javascript"> jQuery(document).ready(function() { jQuery(".myDropDown").change(function() { }); }); </script> </head> <body> <select class="myDropDown" onchange="alert('hello');"> <option>1</option> <option>2</option> <option>3</option> <option>4</option> </select> </body> </html> Ticket to actual bug: http://dev.jquery.com/ticket/6593 This causes alot of trouble for us in our application cause we use both ASP.NET-events mixed with jQuery and once you hook up a change event on any element every select (dropdown) gets this double firing problem. Is there anyone who knows a way around this in the meantime until this issue is fixed?

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• Functional way to get a matrix from text

  - by Elazar Leibovich

  I'm trying to solve some Google Code Jam problems, where an input matrix is typically given in this form: 2 3 #matrix dimensions 1 2 3 4 5 6 7 8 9 # all 3 elements in the first row 2 3 4 5 6 7 8 9 0 # each element is composed of three integers where each element of the matrix is composed of, say, three integers. So this example should be converted to #!scala Array( Array(A(1,2,3),A(4,5,6),A(7,8,9), Array(A(2,3,4),A(5,6,7),A(8,9,0), ) An imperative solution would be of the form #!python input = """2 3 1 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 0 """ lines = input.split('\n') print lines[0] m,n = (int(x) for x in lines[0].split()) array = [] row = [] A = [] for line in lines[1:]: for elt in line.split(): A.append(elt) if len(A)== 3: row.append(A) A = [] array.append(row) row = [] from pprint import pprint pprint(array) A functional solution I've thought of is #!scala def splitList[A](l:List[A],i:Int):List[List[A]] = { if (l.isEmpty) return List[List[A]]() val (head,tail) = l.splitAt(i) return head :: splitList(tail,i) } def readMatrix(src:Iterator[String]):Array[Array[TrafficLight]] = { val Array(x,y) = src.next.split(" +").map(_.trim.toInt) val mat = src.take(x).toList.map(_.split(" "). map(_.trim.toInt)). map(a => splitList(a.toList,3). map(b => TrafficLight(b(0),b(1),b(2)) ).toArray ).toArray return mat } But I really feel it's the wrong way to go because: I'm using the functional List structure for each line, and then convert it to an array. The whole code seems much less efficeint I find it longer less elegant and much less readable than the python solution. It is harder to which of the map functions operates on what, as they all use the same semantics. What is the right functional way to do that?

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• Dynamically create a text file from a C# program

  - by techstu

  Can I dynamically create a text file from a C# program, using data from a previously created xml file and text file, I have written half the code, but can't go any further please help using System; using System.IO; using System.Xml; namespace Task3 { class TextFileReader { static void Main(string[] args) { String strn=" ", strsn=String.Empty; XmlTextReader reader = new XmlTextReader("my.xml"); while (reader.Read()) { switch (reader.NodeType) { case XmlNodeType.Element: // The node is an element. if (reader.HasAttributes) { strn = reader.GetAttribute(0); strsn = reader.GetAttribute(1); int counter = 0; string line; // Read the file and display it line by line. System.IO.StreamReader file = new System.IO.StreamReader("read_file.txt"); string ch, ch1; while ((line = file.ReadLine()) != null) { if (line.Substring(0, 1).Equals("%")) { int a = line.IndexOf('%'); int b = line.LastIndexOf('%'); ch = line.Substring(a + 1, b - 1); ch1 = line.Substring(a, b+1); if (ch == "name") { string test = line.Replace(ch1, strn); Console.WriteLine(test); } else if (ch == "sirname") { string test = line.Replace(ch1, strsn); Console.WriteLine(test); } } else { Console.WriteLine(line); } counter++; } file.Close(); } break; } } // Suspend the screen. Console.ReadLine(); } } } the xml file from which i am reading is: <?xml version="1.0" encoding="utf-8" ?> - <Workflow> <User UserName="pqr" Sirname="sbd" /> <User UserName="abc" Sirname="xyz" /> </Workflow> and the text file is: hi this is me %sirname% %name% but this is not wat i want..please help

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• HP QTP 10: Web-app testing - SomeObj.FireEvent("OnCLick") works, SomeObj.Object.FireEvent("OnCLick") doesn't

  - by Vitaliy

  Hi all! I have rich web app btuil with ExtJS. It has multi-select list control (created with JS+CSS). I want to click on some item in that list using HP QuickTest Pro 10 with Internet Explorer 6. I added that item into Object repository and found that following code works - selects some item: Browser("blah").Page("blah").WebElement("SomeElem").Click next code also works: Browser("blah").Page("blah").WebElement("SomeElem").FireEvent("onMouseDown") Browser("blah").Page("blah").WebElement("SomeElem").FireEvent("onMouseUp") Browser("blah").Page("blah").WebElement("SomeElem").FireEvent("onClick") But I want to select several items using shift+click method. I don't know to do that :( So I have a few questions: How can perform click with mouse on several web elements with Shift key pressed? I tried to do that using CreateEventObject + shiftKey set to true, but the method (perform fireEvent on DOM object, not object from Object repository) doesn't work: Browser("blah").Page("blah").WebElement("SomeElem").Object.FireEvent("onClick") What the difference between WebElement("Element").FireEvent("OnClick") and WebElement("Element").Object.FireEvent("OnClick") ? Plsease, help someone, because I fought with that problem a lot, but had no result. Thanks!

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• jQuery offset() not working in some browsers, on some computers

  - by Peter Di Cecco

  I have a problem positioning an element in certain browsers. I'm using the jQuery autocomplete found here. The div containing autocomplete values should be directly under the text box, and line up perfectly. The code sets the css left property of the div by using the left property generated by $(textbox).offset(); After un-packing the code to try and fix my problem, I get this: var a = $(textbox).offset(); element.css({ width: typeof e.width == "string" || e.width > 0 ? e.width : $(textbox).width(), top: a.top + textbox.offsetHeight, left: a.left }).show(); This seems like it should work, and it does work in Firefox. It doesn't work in IE8, Chrome. The top position is always correct, but the sometimes the div is too far to the left, or too far to the right. On different computers (all with Windows XP), it works in IE8... how can this be? I've also tested it on my Mac, OS 10.5. It works in Firefox, but not Safari. I've disabled plug-ins, changed screen resolutions, re-sized windows... It just inconsistently works in some places sometimes. Can anyone think of something I'm missing?

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• Getter and Setter vs. Builder strategy

  - by Extrakun

  I was reading a JavaWorld's article on Getter and Setter where the basic premise is that getters expose internal content of an object, hence tightening coupling, and go on to provide examples using builder objects. I was rather leery of abolishing getter/setter but on second reading of the article, see to quite like the idea. However, sometimes I just need one cruical element of an entity class, such as the user's id and writing one whole class just to extract that cruical element seems like overkill. It also implies that for different view, a different type of importer/exporter must be implemented (or the whole data of the class to be exported out, thus resulting in waste). Usually I tend towards filtering the result of a getter - for example, if I need to output the price of a product in different currency, I would code it as: return CurrencyOutput::convertTo($product->price(), 'USD'); This is with the understanding that the raw output of a getter is not necessary the final result to be pushed onto a screen or a database. Is getter/setter really as bad as it is protrayed to be? When should one adopt a builder strategy, or a 'get the result and filter it' approach? How do you avoid having a class needing to know about every other objects if you are not using getter/setter?

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• I need my BizTalk map to stop converting xml:lang to ns1:lang

  - by Jeremy Stein

  I have a map in BizTalk 2009 that is converting some data into an XML document to be sent on to another system. The target schema includes some elements with xml:lang attributes. BizTalk generates those as ns1:lang. The target system requires that the prefix xml be used. Here is a simplified example to show what BizTalk is doing: sample.xsd <xs:schema targetNamespace="http://example.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:import schemaLocation="common.xsd" namespace="http://www.w3.org/XML/1998/namespace" /> <xs:element name="example"> <xs:complexType> <xs:attribute ref="xml:lang" /> </xs:complexType> </xs:element> </xs:schema> common.xsd <?xml version="1.0" encoding="utf-16"?> <xs:schema xmlns:xml="http://www.w3.org/XML/1998/namespace" targetNamespace="http://www.w3.org/XML/1998/namespace" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:attribute name="lang" type="xs:language" /> </xs:schema> Example of map output <ns0:example xmlns:ns0="http://example.com/" xmlns:ns1="http://www.w3.org/XML/1998/namespace" ns1:lang="en-US" /> Is there some way to convince BizTalk to use the xml prefix?

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• c# webbrowser | pushed realtime quotes

  - by Eric

  Hi, I am programmer and share trader. Before I have written a day trading application. Until last week it was possible to fetch realtime quotes from http://aktien.boerse.de/aktien_startseite.php?view=2&order=name%20asc&liste=prime&page=0 . Every time the site was surfed the quotes had changed. The HTML contents could then be decoded with regular expressions (regex). Problem They have stopped this service by today. Now the quotes are not realtime when surfing on the page. The only way to get stock quotes now is to use pushed quotes "Push starten"-Button. However I do not know how to basically fetch them in C#. When I create a webbrowser element the only way which I know to get the push quotes out of it is to give the webbrowser element the focus send key ctrl+A and ctrl+C and insert the data some where for decoding. This is not desired since the control is moved away from the user and in case some other control is clicked during the process this may result in unexpected behaviour. Question So is there a proper way to decode push stock quotes in C#? Thanks a lot in advance, --eric

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• Best practices for Java logging from multiple threads?

  - by Jason S

  I want to have a diagnostic log that is produced by several tasks managing data. These tasks may be in multiple threads. Each task needs to write an element (possibly with subelements) to the log; get in and get out quickly. If this were a single-task situation I'd use XMLStreamWriter as it seems like the best match for simplicity/functionality without having to hold a ballooning XML document in memory. But it's not a single-task situation, and I'm not sure how to best make sure this is "threadsafe", where "threadsafe" in this application means that each log element should be written to the log correctly and serially (one after the other and not interleaved in any way). Any suggestions? I have a vague intuition that the way to go is to use a queue of log elements (with each one able to be produced quickly: my application is busy doing real work that's performance-sensitive), and have a separate thread which handles the log elements and sends them to a file so the logging doesn't interrupt the producers. The logging doesn't necessarily have to be XML, but I do want it to be structured and machine-readable. edit: I put "threadsafe" in quotes. Log4j seems to be the obvious choice (new to me but old to the community), why reinvent the wheel...

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• Does JAXWS client make difference between an empty collection and a null collection value as returne

  - by snowflake

  Since JAX-WS rely on JAXB, and since I observed the code that unpack the XML bean in JAX-B Reference Implementation, I guess the difference is not made and that a JAXWS client always return an empty collection, even the webservice result was a null element: public T startPacking(BeanT bean, Accessor<BeanT, T> acc) throws AccessorException { T collection = acc.get(bean); if(collection==null) { collection = ClassFactory.create(implClass); if(!acc.isAdapted()) acc.set(bean,collection); } collection.clear(); return collection; } I agree that for best interoperability service contracts should be non ambiguous and avoid such differences, but it seems that the JAX-WS service I'm invoking (hosted on a Jboss server with Jbossws implementation) is returning as expected either null either empty collection (tested with SoapUI). I used for my test code generated by wsimport. Return element is defined as: @XmlElement(name = "return", nillable = true) protected List<String> _return; I even tested to change the Response class getReturn method from : public List<String> getReturn() { if (_return == null) { _return = new ArrayList<String>(); } return this._return; } to public List<String> getReturn() { return this._return; } but without success. Any helpful information/comment regarding this problem is welcome !

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• Problem with z-index

  - by ripper234

  I'm trying to use z-index to layer a button and a div. The button appears behind the div, while according to z-index it should be in front of it. Here is the style elements associated with the button & div as captured by Firebug: Button button { position:relative; z-index:2; } Site.css (line 356) Inherited fromdiv#note19.sticky .sticky { text-align:center; } Site.css (line 360) Inherited fromtd.taskcell .taskcell { text-align:center; } Site.css (line 345) Inherited fromtable.tasksgrid table { border-collapse:collapse; } Site.css (line 221) Inherited frombody element.style { cursor:auto; } body { color:#696969; font-family:Verdana,Helvetica,Sans-Serif; font-size:0.75em; } Div .sticky .edit { height:100px; position:relative; vertical-align:middle; width:150px; z-index:1; } Site.css (line 371) Inherited fromdiv#note18.sticky .sticky { text-align:center; } Site.css (line 360) Inherited fromtd.taskcell .taskcell { text-align:center; } Site.css (line 345) Inherited fromtable.tasksgrid table { border-collapse:collapse; } Site.css (line 221) Inherited frombody element.style { cursor:auto; } body { color:#696969; font-family:Verdana,Helvetica,Sans-Serif; font-size:0.75em; } Note that the button has a z-index of 2, the div has a z-index of 1, and both are position:relative. Edit - full HTML is in this pastebin.

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• average case running time of linear search algorithm

  - by Brahadeesh

  Hi all. I am trying to derive the average case running time for deterministic linear search algorithm. The algorithm searches an element x in an unsorted array A in the order A[1], A[2], A[3]...A[n]. It stops when it finds the element x or proceeds until it reaches the end of the array. I searched on wikipedia and the answer given was (n+1)/(k+1) where k is the number of times x is present in the array. I approached in another way and am getting a different answer. Can anyone please give me the correct proof and also let me know whats wrong with my method? E(T)= 1*P(1) + 2*P(2) + 3*P(3) ....+ n*P(n) where P(i) is the probability that the algorithm runs for 'i' time (i.e. compares 'i' elements). P(i)= (n-i)C(k-1) * (n-k)! / n! Here, (n-i)C(k-1) is (n-i) Choose (k-1). As the algorithm has reached the ith step, the rest of k-1 x's must be in the last n-i elements. Hence (n-i)C(k-i). (n-k)! is the total number of ways of arranging the rest non x numbers, and n! is the total number of ways of arranging the n elements in the array. I am not getting (n+1)/(k+1) on simplifying.

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• C# : changing listbox row color?

  - by Meko

  HI. I am trying to changing backround colorof some rows on listbox.I have 2 list that one has all names and it shown on listbox.And second list has some same value with first list.I want to show that when clicking button it will search in listbox and in second list then will change color where found value. I may search in list box like for (int i = 0; i < listBox1.Items.Count; i++) { for (int j = 0; j < students.Count; j++) if (listBox1.Items[i].ToString().Contains(students[j].ToString())) { } } But I don't know which method to change appearances of row.Any help? *EDIT: * HI I made my code like private void ListBox1_DrawItem(object sender, DrawItemEventArgs e) { e.DrawBackground(); Graphics g = e.Graphics; Brush myBrush = Brushes.Black; Brush myBrush2 = Brushes.Red; g.FillRectangle(new SolidBrush(Color.Silver), e.Bounds); e.Graphics.DrawString(listBox1.Items[e.Index].ToString(), e.Font, myBrush, e.Bounds, StringFormat.GenericDefault); for (int i = 0; i < listBox1.Items.Count; i++) { for (int j = 0; j < existingStudents.Count; j++) if (listBox1.Items[i].ToString().Contains(existingStudents[j])) { e.Graphics.DrawString(listBox1.Items[i].ToString(), e.Font, myBrush2, e.Bounds, StringFormat.GenericDefault); } } e.DrawFocusRectangle(); } Now it draws my list on listbox.But when I click button first it shows only student that in list with red color but when I click on listbox it again draws all elements.I want that it will show all element ,when I click button it will show all elements and founded element in list with red color.Whre is my mistake?

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• jQuery, unable to store data returned by $.get function.

  - by Deepak Prasanna

  I am trying to turn div#sidebar into a sidebar in my app. My code looks like the one below. $('#sidebar').userProfile(); jQuery.fn.userProfile = function() { $.get('/users/profile', function(data){ $(this).html(data); }); }; It didnt work because, I found the this (inside the $.get function) here contexts to the get request and not $('#sidebar'). Then I tried something like below. $('#sidebar').userProfile(); #This doesnot work jQuery.fn.userProfile = function() { var side_bar = null; $.get('/users/profile', function(data){ side_bar = data; }); $(this).html(side_bar); console.log(side_bar); }; This doesnt work either. In firebug console I see Null which I am setting on top when I am declaring the variable.Atlast I made it work by changing my code to something like below by hardcoding the selector. #This works, but I cannot turn any element to a sidebar which is sick. jQuery.fn.userProfile = function() { $.get('/users/profile', function(data){ $('#sidebar').html(data); }); }; But this is not I wanted because I wanted to turn any element to a sidebar. Where am I goin wrong or which is the correct way of doing it?

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• Unable to display Google Map through API in Flex SDK

  - by Spero.ShiroPetto

  Hello, I am using the mxmlc to compile the examples from google to get started in using Google Maps API in Flex 4. But after compiling the swf file the map does not load. I've registered for an API key Downloaded and included the Maps SDK in the xml config file used at compile time C:\sdk\flex4\frameworks\flex-config.xml <external-library-path> <path-element>libs/google/maps/lib/map_flex_1_18.swc</path-element> </external-library-path> Foo.mxml <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <maps:Map xmlns:maps="com.google.maps.*" id="map" mapevent_mapready="onMapReady(event)" width="100%" height="100%" key="{KEY}"/> <mx:Script> <![CDATA[ import com.google.maps.LatLng; import com.google.maps.Map; import com.google.maps.MapEvent; import com.google.maps.MapType; private function onMapReady(event:Event):void { this.map.setCenter(new LatLng(40.736072,-73.992062), 14, MapType.NORMAL_MAP_TYPE); } ]]> </mx:Script> </mx:Application> Any tips on where to go from here? I can compile a basic flex project without problem and displays the components I put in so i'd imagine it's something to do with the API Key? Thanks for the help

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• Time complexity of a certain program

  - by HokageSama

  In a discussion with my friend i am not able to predict correct and tight time complexity of a program. Program is as below. /* This Function reads input array "input" and update array "output" in such a way that B[i] = index value of nearest greater value from A[i], A[i+1] ... A[n], for all i belongs to [1, n] Time Complexity: ?? **/ void createNearestRightSidedLargestArr(int* input, int size, int* output){ if(!input || size < 1) return; //last element of output will always be zero, since no element is present on its right. output[size-1] = -1; int curr = size - 2; int trav; while(curr >= 0){ if(input[curr] < input[curr + 1]){ output[curr] = curr + 1; curr--; continue; } trav = curr + 1; while( input[ output [trav] ] < input[curr] && output [trav] != -1) trav = output[trav]; output[curr--] = output[trav]; } } I said time complexity is O(n^2) but my friend insists that this is not correct. What is the actual time complexity?

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