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• apache cxf: c error

  - by robinmag

  I tried to deploy the sample application from this tutorial: http://united-coders.com/phillip-steffensen/developing-a-simple-soap-webservice-using-spring-30-apache-cxf-226-and-maven-2 In eclipse everything works fine, but i went to troubles when deploying the service. The cxf-java2ws-plugin throws a ClassNotFoundException for org.springframework.core.NestedRuntimeException. Here is my maven pom build plugin (copy from the example) <plugin> <groupId>org.apache.cxf</groupId> <artifactId>cxf-java2ws-plugin</artifactId> <version>${cxf.version}</version> <dependencies> <dependency> <groupId>org.apache.cxf</groupId> <artifactId>cxf-rt-frontend-jaxws</artifactId> <version>${cxf.version}</version> </dependency> <dependency> <groupId>org.apache.cxf</groupId> <artifactId>cxf-rt-frontend-simple</artifactId> <version>${cxf.version}</version> </dependency> </dependencies> <executions> <execution> <id>process-classes</id> <phase>process-classes</phase> <configuration> <className>vn.vdconline.ws.sso.PersonService</className> <genWsdl>true</genWsdl> <verbose>true</verbose> </configuration> <goals> <goal>java2ws</goal> </goals> </execution> </executions> </plugin> Please tell me if i missed any thing. Thank you!

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• AT91SAM7X512's SPI peripheral gets disabled on write to SPI_TDR

  - by Dor

  My AT91SAM7X512's SPI peripheral gets disabled on the X time (X varies) that I write to SPI_TDR. As a result, the processor hangs on the while loop that checks the TDRE flag in SPI_SR. This while loop is located in the function SPI_Write() that belongs to the software package/library provided by ATMEL. The problem occurs arbitrarily - sometimes everything works OK and sometimes it fails on repeated attempts (attemp = downloading the same binary to the MCU and running the program). Configurations are (defined in the order of writing): SPI_MR: MSTR = 1 PS = 0 PCSDEC = 0 PCS = 0111 DLYBCS = 0 SPI_CSR[3]: CPOL = 0 NCPHA = 1 CSAAT = 0 BITS = 0000 SCBR = 20 DLYBS = 0 DLYBCT = 0 SPI_CR: SPIEN = 1 After setting the configurations, the code verifies that the SPI is enabled, by checking the SPIENS flag. I perform a transmission of bytes as follows: const short int dataSize = 5; // Filling array with random data unsigned char data[dataSize] = {0xA5, 0x34, 0x12, 0x00, 0xFF}; short int i = 0; volatile unsigned short dummyRead; SetCS3(); // NPCS3 == PIOA15 while(i-- < dataSize) { mySPI_Write(data[i]); while((AT91C_BASE_SPI0->SPI_SR & AT91C_SPI_TXEMPTY) == 0); dummyRead = SPI_Read(); // SPI_Read() from Atmel's library } ClearCS3(); /**********************************/ void mySPI_Write(unsigned char data) { while ((AT91C_BASE_SPI0->SPI_SR & AT91C_SPI_TXEMPTY) == 0); AT91C_BASE_SPI0->SPI_TDR = data; while ((AT91C_BASE_SPI0->SPI_SR & AT91C_SPI_TDRE) == 0); // <-- This is where // the processor hangs, because that the SPI peripheral is disabled // (SPIENS equals 0), which makes TDRE equal to 0 forever. } Questions: What's causing the SPI peripheral to become disabled on the write to SPI_TDR? Should I un-comment the line in SPI_Write() that reads the SPI_RDR register? Means, the 4th line in the following code: (The 4th line is originally marked as a comment) void SPI_Write(AT91S_SPI *spi, unsigned int npcs, unsigned short data) { // Discard contents of RDR register //volatile unsigned int discard = spi->SPI_RDR; /* Send data */ while ((spi->SPI_SR & AT91C_SPI_TXEMPTY) == 0); spi->SPI_TDR = data | SPI_PCS(npcs); while ((spi->SPI_SR & AT91C_SPI_TDRE) == 0); } Is there something wrong with the code above that transmits 5 bytes of data? Please note: The NPCS line num. 3 is a GPIO line (means, in PIO mode), and is not controlled by the SPI controller. I'm controlling this line by myself in the code, by de/asserting the ChipSelect#3 (NPCS3) pin when needed. The reason that I'm doing so is because that problems occurred while trying to let the SPI controller to control this pin. I didn't reset the SPI peripheral twice, because that the errata tells to reset it twice only if I perform a reset - which I don't do. Quoting the errata: If a software reset (SWRST in the SPI Control Register) is performed, the SPI may not work properly (the clock is enabled before the chip select.) Problem Fix/Workaround The SPI Control Register field, SWRST (Software Reset) needs to be written twice to be cor- rectly set. I noticed that sometimes, if I put a delay before the write to the SPI_TDR register (in SPI_Write()), then the code works perfectly and the communications succeeds. Useful links: AT91SAM7X Series Preliminary.pdf ATMEL software package/library spi.c from Atmel's library spi.h from Atmel's library An example of initializing the SPI and performing a transfer of 5 bytes is highly appreciated and helpful.

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• curl multipart/form-data help

  - by user253530

  Hi am trying to post some data on a website using CURL. The posting process has 3 steps. 1. enter a URL, submit and get to the 2nd step with some fields already completed 2. submit again, after you entered some more data and preview the form. 3. submit the final data. The problem is that after the second step, the form data looks like this POSTDATA =-----------------------------12249266671528 Content-Disposition: form-data; name="title" Filme 2010, filme 2009, filme noi, programe TV, program cinema, premiere cinema, trailere filme - CineMagia.ro -----------------------------12249266671528 Content-Disposition: form-data; name="category" 3 -----------------------------12249266671528 Content-Disposition: form-data; name="tags" filme, programe tv, program cinema -----------------------------12249266671528 Content-Disposition: form-data; name="bodytext" Filme 2010, filme 2009, filme noi, programe TV, program cinema, premiere cinema, trailere filme -----------------------------12249266671528 Content-Disposition: form-data; name="trackback" -----------------------------12249266671528 Content-Disposition: form-data; name="url" http://cinemagia.ro -----------------------------12249266671528 Content-Disposition: form-data; name="phase" 2 -----------------------------12249266671528 Content-Disposition: form-data; name="randkey" 9510520 -----------------------------12249266671528 Content-Disposition: form-data; name="id" 17753 -----------------------------12249266671528-- I am stuck trying to devise an algorithm that will generate this kind of POST data for the second step. Just to mention the URL of the form never changes. It is always: http://www.xxx.com/submit. There is only a hidden input called "phase" that changes according to the step i am currently on (phase = 1, phase = 2, phase = 3). Any help, be it either code, pseudo-code or just guidance would be greatly appreciated. My code so far: function postBlvsocialbookmarkingcom($curl,$vars) { extract($vars); $baseUrl = "http://www.blv-socialbookmarking.com/"; //step 1: login $curl->setRedirect(); $page = $curl->post ($baseUrl.'login.php?return=/index.php', array ('username' => $username, 'password' => $password, 'processlogin' => '1', 'return' => '/index.php')); if ($err = $curl->getError ()) { return $err; } //post step 1---- //get random key $page = $curl->post($baseUrl.'/submit', array()); $randomKey = explode('<input type="hidden" name="randkey" value="',$page); $randKey = explode('"',$randomKey[1]); //------------------------------------- $page = $curl->post($baseUrl.'/submit', array('url'=>$address,'phase'=>'1','randkey'=>$randKey[0],'id'=>'c_1')); if ($err = $curl->getError ()) { return $err; } //echo $page; // //post step 2 $page = $curl->post ($baseUrl.'/submit', array ('title' => $title, 'category'=>'1', 'tags' => $tags, 'bodytext' => $description, 'phase' => '2')); if ($err = $curl->getError ()) { return $err; } echo $page; //post step 3 $page = $curl->post ($baseUrl.'/submit', array ('phase' => '3')); if ($err = $curl->getError ()) { return $err; } echo $page; }

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• Problem with Keyboard hook proc

  - by Steve

  The background: My form has a TWebBrowser. I want to close the form with ESC but the TWebBrowser eats the keystrokes - so I decided to go with a keyboard hook. The problem is that the Form can be open in multiple instances at the same time. No matter what I do, in some situations, if there are two instances open of my form, closing one of them closes the other as well. I've attached some sample code. Any ideas on what causes the issue? var EmailDetailsForm: TEmailDetailsForm; KeyboardHook: HHook; implementation function KeyboardHookProc(Code: Integer; wParam, lParam: LongInt): LongInt; stdcall; var hWnd: THandle; I: Integer; F: TForm; begin if Code < 0 then Result := CallNextHookEx(KeyboardHook, Code, wParam, lParam) else begin case wParam of VK_ESCAPE: if (lParam and $80000000) <> $00000000 then begin hWnd := GetForegroundWindow; for I := 0 to Screen.FormCount - 1 do begin F := Screen.Forms[I]; if F.Handle = hWnd then if F is TEmailDetailsForm then begin PostMessage(hWnd, WM_CLOSE, 0, 0); Result := HC_SKIP; break; end; end; //for end; //if else Result := CallNextHookEx(KeyboardHook, Code, wParam, lParam); end; //case end; //if end; function TEmailDetailsForm.CheckInstance: Boolean; var I, J: Integer; F: TForm; begin Result := false; J := 0; for I := 0 to Screen.FormCount - 1 do begin F := Screen.Forms[I]; if F is TEmailDetailsForm then begin J := J + 1; if J = 2 then begin Result := true; break; end; end; end; end; procedure TEmailDetailsForm.FormCreate(Sender: TObject); begin if not CheckInstance then KeyboardHook := SetWindowsHookEx(WH_KEYBOARD, @KeyboardHookProc, 0, GetCurrentThreadId()); end; procedure TEmailDetailsForm.FormDestroy(Sender: TObject); begin if not CheckInstance then UnHookWindowsHookEx(KeyboardHook); end;

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• OSX, G/AWK, Bash - "illegal statement, unterminated string" and no file output.

  - by S1syphus

  I have a script that somebody from SO kindly provided to solve an issue I was having, However, I'm having some issues getting it to work on OSX. gawk --version GNU Awk 3.1.6 awk --version awk version 20100208 The original source is: awk -F, -vOFS=, -vc=1 ' NR == 1 { for (i=1; i<NF; i++) { if ($i != "") { g[c]=i; f[c++]=$i } } } NR>2 { for (i=1; i < c; i++) { print $1,$2, $g[i] > "output_"f[i]".csv } }' data.csv When I run the script it gives the following error: awk: syntax error at source line 12 context is print $1,$2, $g[i] > >>> "output_"f <<< [i]".csv awk: illegal statement at source line 13 From the look of it the variable of [i] isn't been amended to the output file, but I don't know why. If I change AWK to GAWK and run the original script here is the output: gawk: cmd. line:11: print $1,$2, $g[i] > "output_"f[i]".csv gawk: cmd. line:11: ^ unterminated string So I edit the relevant line to fix the unterminated string print $1,$2, $g[i] > "output_"f[i]".csv" Then it runs through fine produces no errors, but there is no output files. Any ideas? I spent the majority of last night and this morning pouring over this. A sample input file: ,,L1,,,L2,,,L3,,,L4,,,L5,,,L6,,,L7,,,L8,,,L9,,,L10,,,L11, Title,r/t,needed,actual,Inst,needed,actual,Inst,needed,actual,Inst,needed,actual,Inst,neede d,actual,Inst,needed,actual,Inst,needed,actual,Inst,needed,actual,Inst,needed,actual,Inst,needed,actual,Inst,needed,actual,Inst EXAMPLEfoo,60,6,6,6,0,0,0,0,0,0,6,6,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 EXAMPLEbar,30,6,6,12,6,7,14,6,6,12,6,6,12,6,8,16,6,7,14,6,7.5,15,6,6,12,6,8,16,6,0,0,6,7,14 EXAMPLE1,60,3,3,3,3,5,5,3,4,4,3,3,3,3,6,6,3,4,4,3,3,3,3,4,4,3,8,8,3,0,0,3,4,4 EXAMPLE2,120,6,6,3,0,0,0,6,8,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 EXAMPLE3,60,6,6,6,6,8,8,6,6,6,6,6,6,0,0,0,0,0,0,6,8,8,6,6,6,0,0,0,0,0,0,0,10,10 EXAMPLE4,30,6,6,12,6,7,14,6,6,12,6,6,12,3,5.5,11,6,7.5,15,6,6,12,6,0,0,6,9,18,6,0,0,6,6.5,13 And the example out put should be So for L1 an example out put would look like: EXAMPLEfoo,60,6 EXAMPLEbar,30,6 EXAMPLE1,60,3 EXAMPLE2,120,6 EXAMPLE3,60,6 EXAMPLE4,30,6 And for L2: EXAMPLEfoo,60,0 EXAMPLEbar,30,6 EXAMPLE1,60,3 EXAMPLE2,120,0 EXAMPLE3,60,6 EXAMPLE4,30,6

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• Fluent NHibernate Self Referencing Many To Many

  - by Jeremy

  I have an entity called Books that can have a list of more books called RelatedBooks. The abbreviated Book entity looks something likes this: public class Book { public virtual long Id { get; private set; } public virtual IList<Book> RelatedBooks { get; set; } } Here is what the mapping looks like for this relationship HasManyToMany(x => x.RelatedBooks) .ParentKeyColumn("BookId") .ChildKeyColumn("RelatedBookId") .Table("RelatedBooks") .Cascade.SaveUpdate(); Here is a sample of the data that is then generated in the RelatedBooks table: BookId RelatedBookId 1 2 1 3 The problem happens when I Try to delete a book. If I delete the book that has an ID of 1, everything works ok and the RelatedBooks table has the two corresponding records removed. However if I try to delete the book with an ID of 3, I get the error "The DELETE statement conflicted with the REFERENCE constraint "FK5B54405174BAB605". The conflict occurred in database "Test", table "dbo.RelatedBooks", column 'RelatedBookId'". Basically what is happening is the Book cannot be deleted because the record in the RelatedBooks table that has a RelatedBookId of 3 is never deleted. How do I get that record to be deleted when I delete a book? EDIT After changing the Cascade from SaveUpdate() to All(), the same problem still exists if I try to delete the Book with an ID of 3. Also with Cascade set to All(), if delete the Book with and ID of 1, then all 3 books (ID's: 1, 2 and 3) are deleted so that won't work either. Looking at the SQL that is executed when the Book.Delete() method is called when I delete the Book with an ID of 3, it looks like the SELECT statement is looking at the wrong column (which I assume means that the SQL DELETE statment would make the same mistake, therefore never removing that record). Here is the SQL for the RelatedBook SELECT relatedboo0_.BookId as BookId3_ , relatedboo0_.RelatedBookId as RelatedB2_3_ , book1_.Id as Id14_0_ FROM RelatedBooks relatedboo0_ left outer join [Book] book1_ on relatedboo0_.RelatedBookId=book1_.Id WHERE relatedboo0_.BookId=3 The WHERE statment should look something like this for thie particular case: WHERE relatedboo0_.RelatedBookId = 3 SOLUTION Here is what I had to do to get it working for all cases Mapping: HasManyToMany(x => x.RelatedBooks) .ParentKeyColumn("BookId") .ChildKeyColumn("RelatedBookId") .Table("RelatedBooks"); Code: var book = currentSession.Get<Book>(bookId); if (book != null) { //Remove all of the Related Books book.RelatedBooks.Clear(); //Get all other books that have this book as a related book var booksWithRelated = currentSession.CreateCriteria<Book>() .CreateAlias("RelatedBooks", "br") .Add(Restrictions.Eq("br.Id", book.Id)) .List<Book>(); //Remove this book as a Related Book for all other Books foreach (var tempBook in booksWithRelated) { tempBook.RelatedBooks.Remove(book); tempBook.Save(); } //Delete the book book.Delete(); }

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• Piping input to a Java app with Perl

  - by user319479

  I need to write a Perl script that pipes input into a Java program. This is related to this, but that didn't help me. My issue is that the Java app doesn't get the print statements until I close the handle. What I found online was that $| needs to be set to something greater than 0, in which case newline characters will flush the buffer. This still doesn't work. This is the script: #! /usr/bin/perl -w use strict; use File::Basename; $|=1; open(TP, "| java -jar test.jar") or die "fail"; sleep(2); print TP "this is test 1\n"; print TP "this is test 2\n"; print "tests printed, waiting 5s\n"; sleep(5); print "wait over. closing handle...\n"; close TP; print "closed.\n"; print "sleeping for 5s...\n"; sleep(5); print "script finished!\n"; exit And here is a sample Java app: import java.util.Scanner; public class test{ public static void main( String[] args ){ Scanner sc = new Scanner( System.in ); int crashcount = 0; while( true ){ try{ String input = sc.nextLine(); System.out.println( ":: INPUT: " + input ); if( "bananas".equals(input) ){ break; } } catch( Exception e ){ System.out.println( ":: EXCEPTION: " + e.toString() ); crashcount++; if( crashcount == 5 ){ System.out.println( ":: Looks like stdin is broke" ); break; } } } System.out.println( ":: IT'S OVER!" ); return; } } The Java app should respond to receiving the test prints immediately, but it doesn't until the close statement in the Perl script. What am I doing wrong? Note: the fix can only be in the Perl script. The Java app can't be changed. Also, File::Basename is there because I'm using it in the real script.

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• Update twitter profile image using OAuth

  - by sjobe

  I'm trying to get twitter update_profile_image to work using OAuth. I was using curl with regular authentication and everything was working fine, but I switched to OAuth using this library, and now everything except update_profile_image works. I read something about twitter OAuth having problems with multipart data, but that was a while ago and the plugin is supposed to have dealt with that issue. My working regular authentication with curl code $url = 'http://api.twitter.com/1/account/update_profile_image.xml'; $uname = $_POST['username']; $pword = $_POST['password']; $img_path = 'xxx'; $userpwd = $uname . ':' . $pword; $img_post = array('image' => '@' . $img_path . ';type=image/jpeg', 'tile' => 'true'); $format = 'xml'; //alternative: json $message = 'Test update with a random num'.rand(); $opts = array(CURLOPT_URL => $url, CURLOPT_FOLLOWLOCATION => true, CURLOPT_RETURNTRANSFER => true, CURLOPT_HEADER => true, CURLOPT_POST => true, CURLOPT_POSTFIELDS => $img_post, CURLOPT_HTTPAUTH => CURLAUTH_ANY, CURLOPT_USERPWD => $userpwd, CURLOPT_HTTPHEADER => array('Expect:'), CURLINFO_HEADER_OUT => true); $ch = curl_init(); curl_setopt_array($ch, $opts); $response = curl_exec($ch); $err = curl_error($ch); $info = curl_getinfo($ch); curl_close($ch); My current OAuth code [I had to cut it down, so do not minor look for syntax errors] include 'EpiCurl.php'; include 'EpiOAuth.php'; include 'EpiTwitter.php'; include 'secret.php'; $twitterObj = new EpiTwitter($consumer_key, $consumer_secret); $twitterObj->setToken($_GET['oauth_token']); $token = $twitterObj->getAccessToken(); $twitterObj->setToken($token->oauth_token, $token->oauth_token_secret); try{ $img_path = 'xxx'; //$twitterObj->post_accountUpdate_profile_image(array('@image' => "@".$img_path)); $twitterObj->post('/account/update_profile_image.json', array('@image' => "@".$img_path)); $twitterObj->post_statusesUpdate(array('status' => 'This is my new status:'.rand())); //This works $twitterInfo= $twitterObj->get_accountVerify_credentials(); echo $twitterInfo->responseText; }catch(Exception $e){ echo $e->getMessage(); } I've been trying to figure this out for a while, ANY help would be greatly appreciated. I'm not in any way tied to this library, so feel free to recommend others.

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• Problem with custom paging in ASP.NET

  - by JohnCC

  I'm trying to add custom paging to my site using the ObjectDataSource paging. I believe I've correctly added the stored procedures I need, and brought them up through the DAL and BLL. The problem I have is that when I try to use it on a page, I get an empty datagrid. <%@ Page Language="C#" AutoEventWireup="true" CodeFile="PageTest.aspx.cs" Inherits="developer_PageTest" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:ObjectDataSource ID="ObjectDataSource1" SelectMethod="GetMessagesPaged" EnablePaging="true" SelectCountMethod="GetMessagesCount" TypeName="MessageTable" runat="server" > <SelectParameters> <asp:Parameter Name="DeviceID" Type="Int32" DefaultValue="112" /> <asp:Parameter Name="StartDate" Type="DateTime" DefaultValue="" ConvertEmptyStringToNull="true"/> <asp:Parameter Name="EndDate" Type="DateTime" DefaultValue="" ConvertEmptyStringToNull="true"/> <asp:Parameter Name="BasicMatch" Type="Boolean" ConvertEmptyStringToNull="true" DefaultValue="" /> <asp:Parameter Name="ContainsPosition" Type="Boolean" ConvertEmptyStringToNull="true" DefaultValue="" /> <asp:Parameter Name="Decoded" Type="Boolean" ConvertEmptyStringToNull="true" DefaultValue="" /> <%-- <asp:Parameter Name="StartRowIndex" Type="Int32" DefaultValue="10" /> <asp:Parameter Name="MaximumRows" Type="Int32" DefaultValue="10" /> --%> </SelectParameters> </asp:ObjectDataSource> <asp:GridView ID="GridView1" runat="server" DataSourceID="ObjectDataSource1" AllowPaging="true" PageSize="10"></asp:GridView> <br /> <asp:Label runat="server" ID="lblCount"></asp:Label> </div> </form> </body> </html> When I set EnablePaging to false on the ODS, and add the commented out StartRowIndex and MaximumRows params in the markup, I get data so it really seems like the data layer is behaving as it should. There's code in code file to put the value of the GetMessagesCount call in the lblCount, and that always has a sensible value in it. I've tried breaking in the BLL and stepping through, and the backend is getting called, and it is returning what looks like the right information and data, but somehow between the ODS and the GridView it's vanishing. I created a mock data source which returned numbered rows of random numbers and attached it to this form, and the custom paging worked so I think my understanding of the technique is good. I just can't see why it fails here! Any help really appreciated. (EDIT .. here's the code behind). using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.ComponentModel; public partial class developer_PageTest : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { lblCount.Text = String.Format("Count = {0}", MessageTable.GetMessagesCount(112, null, null, null, null, null)) } }

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• VBA/SQL recordsets

  - by intruesiive

  The project I'm asking about is for sending an email to teachers asking what books they're using for the classes they're teaching next semester, so that the books can be ordered. I have a query that compares the course number of this upcoming semester's classes to the course numbers of historical textbook orders, pulling out only those classes that are being taught this semester. That's where I get lost. I have a table that contains the following: -Professor -Course Number -Year -Book -Title The data looks like this: professor year course number title smith 13 1111 Pride and Prejudice smith 13 1111 The Fountainhead smith 13 1222 The Alchemist smith 12 1111 Pride and Prejudice smith 11 1222 Infinite Jest smith 10 1333 The Bible smith 13 1333 The Bible smith 12 1222 The Alchemist smith 10 1111 Moby Dick johnson 12 1222 The Tipping Point johnson 11 1333 Anna Kerenina johnson 10 1333 Everything is Illuminated johnson 12 1222 The Savage Detectives johnson 11 1333 In Search of Lost Time johnson 10 1333 Great Expectations johnson 9 1222 Proust on the Shore Here's what I need the code to do "on paper": Group the records by professor. Determine every unique course number in that group, and group records by course number. For each unique course number, determine the highest year associated. Then spit out every record with that professor+course number+year combination. With the sample data, the results would be: professor year course number title smith 13 1111 Pride and Prejudice smith 13 1111 The Fountainhead smith 13 1222 The Alchemist smith 13 1333 The Bible johnson 12 1222 The Tipping Point johnson 11 1333 Anna Kerenina johnson 12 1222 The Savage Detectives johnson 11 1333 In Search of Lost Time I'm thinking I should make a record set for each teacher, and within that, another record set for each course number. Within the course number record set, I need the system to determine what the highest year number is - maybe store that in a variable? Then pull out every associated record so that if the teacher ordered 3 books the last time they taught that class (whether it was in 2013 or 2012 and so on) all three books display. I'm not sure I'm thinking of record sets in the right way, though. My SQL so far is basic and clearly doesn't work: SELECT [All].Professor, [All].Course, Max([All].Year) FROM [All] GROUP BY [All].Professor, [All].Course; Thanks for your help.

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• Silverlight 3 - Creating Custom Objects inside a Merged ResourceDictionary

  - by Tony Heupel

  I have custom classes that I currently instantiate within App.xaml as resources. I want to move these custom objects into a Merged ResourceDictionary, where they are used within styles, and keep them close to where they are used. Here's an example of what I want, arbitrarily using fake converter objects, but they could be any custom object... App.xaml (namespace declarations ommitted): <Application.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Merged.xaml" /> </ResourceDictionary.MergedDictionaries> <Style x:Key="SomeStyle" TargetType="SomeControl"> ... </Style> ... </ResourceDictionary> And then in Merged.xaml (namespace declarations omitted): <ResourceDictionary> <cvt:VisibilityToBoolConverter x:Key="BoolToVisibility" Inverted="True"/> <cvt:VisibilityToBoolConverter x:Key="NotBoolToVisibility" Inverted="True" Not="True"/> <Style x:Key="SomethingThatUsesVisibilityToBoolConvertersStyle" TargetType="SomeOtherControl"> .... </Style> </ResourceDictionary> The issue I'm seeing is this: when I create the BoolToVisibility and NotBoolToVisibility objects (as well instantiating other objects that are instances of custom classes I have created) just as part Application.Resources, they are created and all the references work as expected; however, when I move these into a Merged Resource Dictionary (as I have in the sample above), I get a malformed Application exception when the Silverlight application loads. I belive this to be an issue with how objects are instantiated differently in Merged Resource Dictionaries (I belive it is more of a lazy-load approach), but I would expect it to work nonetheless. I am very much able to add Style objects, DataTemplates, ControlTemplates, and the like. But when I want to create instances of custom classes that are named or keyed using Xaml, it works great inside of App.xaml's Application.Resources directly and Application.Resources/ResourceDictionary as well. As soon as they are moved into a merged dictionary, it throws the exception. Is this by design? Any other ideas that work? Thanks in advance...

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• Does an ESEUTIL defrag of an Exchange store also perform an integrity check/repair on it?

  - by Bigbio2002

  Earlier this morning, store.exe fuzzled up in one way or another, which necessitated a restart of our Exchange server. It came back online with no errors or problems, all the transaction logs replayed successfully, and all the stores mounted as normal. To me, it was just one of those random crashes; however, our consultant suspects it was caused by corruption in one of the stores. Perhaps he's correct, since he has far more experience than me, but that's not the point. To fix the suspected errors, he's planinng to run an ESEUTIL defrag (via PerfectDisk) to fix them, which he claims will also fix any errors present. From what I understand, defrag, verify, and repair are 3 separate actions, and a defrag does not imply any kind of integrity check. Is this correct? Are there any dangers of running a straight-up defrag on a database that might be corrupt? Edit: Here's the first error in the event log, which indicated the start of the problems we were having. Anyone know what it might indicate? Event Type: Error Event Source: Microsoft Exchange Server Event Category: None Event ID: 1000 Date: 11/23/2011 Time: 8:15:47 AM User: N/A Computer: SERVER Description: Faulting application exsp.dll, version 6.5.7638.1, stamp 430e735b, faulting module kernel32.dll, version 5.2.3790.4480, stamp 49c51f0a, debug? 0, fault address 0x0000bef7. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 41 00 70 00 70 00 6c 00 A.p.p.l. 0008: 69 00 63 00 61 00 74 00 i.c.a.t. 0010: 69 00 6f 00 6e 00 20 00 i.o.n. . 0018: 46 00 61 00 69 00 6c 00 F.a.i.l. 0020: 75 00 72 00 65 00 20 00 u.r.e. . 0028: 20 00 65 00 78 00 73 00 .e.x.s. 0030: 70 00 2e 00 64 00 6c 00 p...d.l. 0038: 6c 00 20 00 36 00 2e 00 l. .6... 0040: 35 00 2e 00 37 00 36 00 5...7.6. 0048: 33 00 38 00 2e 00 31 00 3.8...1. 0050: 20 00 34 00 33 00 30 00 .4.3.0. 0058: 65 00 37 00 33 00 35 00 e.7.3.5. 0060: 62 00 20 00 69 00 6e 00 b. .i.n. 0068: 20 00 6b 00 65 00 72 00 .k.e.r. 0070: 6e 00 65 00 6c 00 33 00 n.e.l.3. 0078: 32 00 2e 00 64 00 6c 00 2...d.l. 0080: 6c 00 20 00 35 00 2e 00 l. .5... 0088: 32 00 2e 00 33 00 37 00 2...3.7. 0090: 39 00 30 00 2e 00 34 00 9.0...4. 0098: 34 00 38 00 30 00 20 00 4.8.0. . 00a0: 34 00 39 00 63 00 35 00 4.9.c.5. 00a8: 31 00 66 00 30 00 61 00 1.f.0.a. 00b0: 20 00 66 00 44 00 65 00 .f.D.e. 00b8: 62 00 75 00 67 00 20 00 b.u.g. . 00c0: 30 00 20 00 61 00 74 00 0. .a.t. 00c8: 20 00 6f 00 66 00 66 00 .o.f.f. 00d0: 73 00 65 00 74 00 20 00 s.e.t. . 00d8: 30 00 30 00 30 00 30 00 0.0.0.0. 00e0: 62 00 65 00 66 00 37 00 b.e.f.7. 00e8: 0d 00 0a 00 ....

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• How to Access a decendant object's internal method in C#

  - by Giovanni Galbo

  I'm trying to access a method that is marked as internal in the parent class (in its own assembly) in an object that inherits from the same parent. Let me explain what I'm trying to do... I want to create Service classes that return IEnumberable with an underlying List to non-Service classes (e.g. the UI) and optionally return an IEnumerable with an underlying IQueryable to other services. I wrote some sample code to demonstrate what I'm trying to accomplish, shown below. The example is not real life, so please remember that when commenting. All services would inherit from something like this (only relevant code shown): public class ServiceBase<T> { protected readonly ObjectContext _context; protected string _setName = String.Empty; public ServiceBase(ObjectContext context) { _context = context; } public IEnumerable<T> GetAll() { return GetAll(false); } //These are not the correct access modifiers.. I want something //that is accessible to children classes AND between descendant classes internal protected IEnumerable<T> GetAll(bool returnQueryable) { var query = _context.CreateQuery<T>(GetSetName()); if(returnQueryable) { return query; } else { return query.ToList(); } } private string GetSetName() { //Some code... return _setName; } } Inherited services would look like this: public class EmployeeService : ServiceBase<Employees> { public EmployeeService(ObjectContext context) : base(context) { } } public class DepartmentService : ServiceBase<Departments> { private readonly EmployeeService _employeeService; public DepartmentService(ObjectContext context, EmployeeService employeeService) : base(context) { _employeeService = employeeService; } public IList<Departments> DoSomethingWithEmployees(string lastName) { //won't work because method with this signature is not visible to this class var emps = _employeeService.GetAll(true); //more code... } } Because the parent class lives is reusable, it would live in a different assembly than the child services. With GetAll(bool returnQueryable) being marked internal, the children would not be able to see each other's GetAll(bool) method, just the public GetAll() method. I know that I can add a new internal GetAll method to each service (or perhaps an intermediary parent class within the same assembly) so that each child service within the assembly can see each other's method; but it seems unnecessary since the functionality is already available in the parent class. For example: internal IEnumerable<Employees> GetAll(bool returnIQueryable) { return base.GetAll(returnIQueryable); } Essentially what I want is for services to be able to access other service methods as IQueryable so that they can further refine the uncommitted results, while everyone else gets plain old lists. Any ideas?

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• WCF - Serialization Exception even after giving DataContract and DataMember

  - by Lijo

  Hi Team, I am getting the following exception eventhough I have specified the Datacontract and Datamember. Could you please help me to understand what the issue is? "Type 'MyServiceLibrary.CompanyLogo' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute." using System.ServiceModel; using System.ServiceModel.Dispatcher; using System.ServiceModel.Channels; using System.ServiceModel.Description; using System.Runtime.Serialization; using MyServiceLibrary; namespace MySelfHostConsoleApp { class Program { static void Main(string[] args) { System.ServiceModel.ServiceHost myHost = new ServiceHost(typeof(NameDecorator)); myHost.Open(); Console.ReadLine(); } } } //The Service is using System.ServiceModel; using System.Runtime.Serialization; namespace MyServiceLibrary { [ServiceContract(Namespace = "http://Lijo.Samples")] public interface IElementaryService { [OperationContract] CompanyLogo GetLogo(); } public class NameDecorator : IElementaryService { public CompanyLogo GetLogo() { Shape cirlce = new Shape(); CompanyLogo logo = new CompanyLogo(cirlce); return logo; } } [DataContract] public class Shape { public string SelfExplain() { return "sample"; } } [DataContract] public class CompanyLogo { private Shape m_shapeOfLogo; [DataMember] public Shape ShapeOfLogo { get { return m_shapeOfLogo; } set { m_shapeOfLogo = value; } } public CompanyLogo(Shape shape) { m_shapeOfLogo = shape; } } } //And the host config is <?xml version="1.0" encoding="utf-8" ?> <configuration> <system.serviceModel> <services> <service name="MyServiceLibrary.NameDecorator" behaviorConfiguration="WeatherServiceBehavior"> <host> <baseAddresses> <add baseAddress="http://localhost:8017/ServiceModelSamples/FreeServiceWorld"/> </baseAddresses> </host> <endpoint address="" binding="basicHttpBinding" contract="MyServiceLibrary.IElementaryService" /> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> </service> </services> <behaviors> <serviceBehaviors> <behavior name="WeatherServiceBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="False"/> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration> Thanks Lijo

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• Help with starting up my thin server with Sinatra

  - by enedi

  Hi All, I'm a newcomer trying to get my feet wet with Ruby and Sinatra. I followed the Slicehost articles in getting Ruby 1.9.1 setup along with Thin 1.2.7 with a reverse proxy to Nginx. Most things were going pretty smooth until I tried to start up my thin server. This is the output I get from my logs: $ sudo thin -C config.yml -R config.ru start /home/user/public_html/testapp/config.ru:9:in `block in <main>': undefined method `application' for Sinatra:Module (NoMethodError) from /var/lib/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:46:in `instance_eval' from /var/lib/gems/1.9.1/gems/rack-1.1.0/lib/rack/builder.rb:46:in `initialize' from /home/user/public_html/testapp/config.ru:1:in `new' from /home/user/public_html/testapp/config.ru:1:in `<main>' from /var/lib/gems/1.9.1/gems/thin-1.2.7/lib/rack/adapter/loader.rb:36:in `eval' from /var/lib/gems/1.9.1/gems/thin-1.2.7/lib/rack/adapter/loader.rb:36:in `load' from /var/lib/gems/1.9.1/gems/thin-1.2.7/lib/thin/controllers/controller.rb:175:in `load_rackup_config' from /var/lib/gems/1.9.1/gems/thin-1.2.7/lib/thin/controllers/controller.rb:65:in `start' from /var/lib/gems/1.9.1/gems/thin-1.2.7/lib/thin/runner.rb:177:in `run_command' from /var/lib/gems/1.9.1/gems/thin-1.2.7/lib/thin/runner.rb:143:in `run!' from /var/lib/gems/1.9.1/gems/thin-1.2.7/bin/thin:6:in `<top (required)>' from /usr/bin/thin:19:in `load' from /usr/bin/thin:19:in `<main>' I can post my config.yml, config.ru and myapp.rb, where my Sinatra code resides (it's basically the sample code ripped from the top of the Sinatra book), if anyone needs to see it, but if you have any ideas on what's going on based on that log itself, I'd appreciate it, as I couldn't find anything on the world wide Google. Also, is this still the preferred way of running Sinatra on thin? I can get the app working with just running it through Ruby itself: $ ruby myapp.rb == Sinatra/1.0 has taken the stage on 4567 for development with backup from Thin This allows me to see my pages in my sandbox. Thank you, all.

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• Geolocation SQL query not finding exact location

  - by Iridium52

  I have been testing my geolocation query for some time now and I haven't found any issues with it until now. I am trying to search for all cities within a given radius, often times I'm searching for cities surrounding a city using that city's coords, but recently I tried searching around a city and found that the city itself was not returned. I have these cities as an excerpt in my database: city latitude longitude Saint-Mathieu 45.316708 -73.516253 Saint-Édouard 45.233374 -73.516254 Saint-Michel 45.233374 -73.566256 Saint-Rémi 45.266708 -73.616257 But when I run my query around the city of Saint-Rémi, with the following query... SELECT tblcity.city, tblcity.latitude, tblcity.longitude, truncate((degrees(acos( sin(radians(tblcity.latitude)) * sin(radians(45.266708)) + cos(radians(tblcity.latitude)) * cos(radians(45.266708)) * cos(radians(tblcity.longitude - -73.616257) ) ) ) * 69.09*1.6),1) as distance FROM tblcity HAVING distance < 10 ORDER BY distance desc I get these results: city latitude longitude distance Saint-Mathieu 45.316708 -73.516253 9.5 Saint-Édouard 45.233374 -73.516254 8.6 Saint-Michel 45.233374 -73.566256 5.3 The town of Saint-Rémi is missing from the search. So I tried a modified query hoping to get a better result: SELECT tblcity.city, tblcity.latitude, tblcity.longitude, truncate(( 6371 * acos( cos( radians( 45.266708 ) ) * cos( radians( tblcity.latitude ) ) * cos( radians( tblcity.longitude ) - radians( -73.616257 ) ) + sin( radians( 45.266708 ) ) * sin( radians( tblcity.latitude ) ) ) ),1) AS distance FROM tblcity HAVING distance < 10 ORDER BY distance desc But I get the same result... However, if I modify Saint-Rémi's coords slighly by changing the last digit of the lat or long by 1, both queries will return Saint-Rémi. Also, if I center the query on any of the other cities above, the searched city is returned in the results. Can anyone shed some light on what may be causing my queries above to not display the searched city of Saint-Rémi? I have added a sample of the table (with extra fields removed) below. I'm using MySQL 5.0.45, thanks in advance. CREATE TABLE `tblcity` ( `IDCity` int(1) NOT NULL auto_increment, `City` varchar(155) NOT NULL default '', `Latitude` decimal(9,6) NOT NULL default '0.000000', `Longitude` decimal(9,6) NOT NULL default '0.000000', PRIMARY KEY (`IDCity`) ) ENGINE=MyISAM AUTO_INCREMENT=52743 DEFAULT CHARSET=latin1 AUTO_INCREMENT=52743; INSERT INTO `tblcity` (`city`, `latitude`, `longitude`) VALUES ('Saint-Mathieu', 45.316708, -73.516253), ('Saint-Édouard', 45.233374, -73.516254), ('Saint-Michel', 45.233374, -73.566256), ('Saint-Rémi', 45.266708, -73.616257);

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• Capture Highlighted Text from any window using C#

  - by dineshrekula

  How to read the highlighted/Selected Text from any window using c#. i tried 2 approaches. Send "^c" whenever user selects some thing. But in this case my clipboard is flooded with lots of unnecessary data. Sometime it copied passwords also. so i switched my approach to 2nd method, send message method. see this sample code [DllImport("user32.dll")] static extern int GetFocus(); [DllImport("user32.dll")] static extern bool AttachThreadInput(uint idAttach, uint idAttachTo, bool fAttach); [DllImport("kernel32.dll")] static extern uint GetCurrentThreadId(); [DllImport("user32.dll")] static extern uint GetWindowThreadProcessId(int hWnd, int ProcessId); [DllImport("user32.dll") ] static extern int GetForegroundWindow(); [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = false)] static extern int SendMessage(int hWnd, int Msg, int wParam, StringBuilder lParam); // second overload of SendMessage [DllImport("user32.dll")] private static extern int SendMessage(IntPtr hWnd, uint Msg, out int wParam, out int lParam); const int WM_SETTEXT = 12; const int WM_GETTEXT = 13; private string PerformCopy() { try { //Wait 5 seconds to give us a chance to give focus to some edit window, //notepad for example System.Threading.Thread.Sleep(5000); StringBuilder builder = new StringBuilder(500); int foregroundWindowHandle = GetForegroundWindow(); uint remoteThreadId = GetWindowThreadProcessId(foregroundWindowHandle, 0); uint currentThreadId = GetCurrentThreadId(); //AttachTrheadInput is needed so we can get the handle of a focused window in another app AttachThreadInput(remoteThreadId, currentThreadId, true); //Get the handle of a focused window int focused = GetFocus(); //Now detach since we got the focused handle AttachThreadInput(remoteThreadId, currentThreadId, false); //Get the text from the active window into the stringbuilder SendMessage(focused, WM_GETTEXT, builder.Capacity, builder); return builder.ToString(); } catch (System.Exception oException) { throw oException; } } this code working fine in Notepad. But if i try to capture from another applications like Mozilla firefox, or Visual Studio IDE, it's not returning the text. Can anybody please help me, where i am doing wrong? First of all, i have chosen the right approach?

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• jquery sortable item cached? #sortable items: '.class1' filter is not working when class is changed

  - by liz

  hello everyone, i came across a weird problem today: i created a sortable list of divs. each div has a class="class1" and items is set to 'class1' (see below simplified code). each div has an a href link that calls a function toggleLock. this function replaces class="class1" with class="locked" for that div. for example: will become the problem is: even though #sortable is set to "make" only items with class="class1" sortable, replacing the class still allows to be sortable. seems like item class is cached at some point. i've tried to refresh #sortable ($('#sortable').sortable("refreshPosition") and $('#sortable').sortable("");), but that didn't work. i've tried both ways of replacing the class: attr('class','lock') and removeClass(), then addClass(). still is sortable. if class is not changed dynamically, but loads into DOM as , then it's not sortable as expected. why wouldn't replacement of the class from class1 to locked prevent that div from being sortable? am i missing something? sample code: <div id="sortable"> <div class="class1" id="1"> <div class="sortHandle">....</div> <href="javascript:void(null);" onclick="toggleLock($(this).attr('id').replace('R',''));" id="R1">lock</a> <p>This is item 1</p> </div> <div class="class1" id="2"> <div class="sortHandle"></div> <href="javascript:void(null);" onclick="toggleLock($(this).attr('id').replace('R',''));" id="R2">lock</a> <p>This is item 2</p> </div> <div class="class1" id="3"> <div class="sortHandle"></div> <href="javascript:void(null);" onclick="toggleLock($(this).attr('id').replace('R',''));" id="R3">lock</a> <p>This is item 3</p> </div> </div> js: $(function() { $("#sortable").sortable({ items: '.class1', handle: '.sortHandle', cursor: 'move', start: function(e,ui) { el = e.target; startPos = ui.item.prevAll().length+1; }, update: function(event, ui) { data = $('.class1').sortable('toArray'); newPos = ui.item.prevAll().length+1; alert("position: "+startPos+"; newposition: "+newPos); } }).disableSelection(); });

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• Enable real fixed positioning on Samsung Android browsers

  - by Mr. Shiny and New ??

  The Android browser, since 2.2, supports fixed positioning, at least under certain circumstances such as when scaling is turned off. I have a simple HTML file with no JS, but the fixed positioning on three Samsung phones I've tried is simply wrong. Instead of true fixed positioning, the header scrolls out of view then pops back into place after the scrolling is done. This doesn't happen on the Android SDK emulator for any configuration I've tested (2.2, 2.3, 2.3 x86, 4.0.4). It also doesn't happen when using the WebView in an app on the Samsung phones: in those cases the positioning works as expected. Is there a way to make the Samsung Android "stock" browser use real fixed positioning? I've tested: 1. Samsung Galaxy 551, Android 2.2 2. Samsung Galaxy S, Android 2.3 3. Samsung Galaxy S II, Android 2.3 Sample code: <html> <head> <meta name="viewport" content="initial-scale=1.0,maximum-scale=1.0,user-scalable=no,width=device-width,height=device-height"> <style> h1 { position: fixed; top: 0; left: 0; height: 32px; background-color: #CDCDCD; color: black; font-size: 32px; line-height: 32px; padding: 2px; width: 100%; margin: 0;} p { margin-top: 36px; } </style> </head> <body> <h1>Header</h1> <p>Long text goes here</p> </body> </html> The expected behaviour is that the grey header fills the top of the screen and stays put no matter how much you scroll. On Samsung Android browsers it seems to scroll out of view then pop back into place once the scrolling is done, as if the fixed-positioning is being simulated using Javascript, which it isn't. Edit Judging by the comments and "answers" it seems that maybe I wasn't clear on what I need. I am looking for a meta tag or css rule/hack or javascript toggle which turns off Samsung's broken fixed-positioning and turns on the Android browser's working fixed-positioning. I am not looking for a Javascript solution that adds broken fixed-positioning to a browser that has no support whatsoever; the Samsung fixed-positioning does that already, it just looks stupid.

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• EXT-GWT Portal: How to get all Portlets?

  - by Lars

  Hi all this is my first Question here! Im just making my first steps with (Ext-) GWT. I´m testing the Ext-GWT libraries and really: These are absolute great! Now my question: Is it possible to make a kind of "clear-Portal" or "hide all portles" for a defined Portal? Or have i always manually clear the portal like in my example code above? My sample code looks like this: //define the Portal, 2 columns, each 50% auf width, with borders and Backgroundcolor portal = new Portal(2); portal.setBorders(true); portal.setStyleAttribute("backgroundColor", "white"); portal.setColumnWidth(0, .50); portal.setColumnWidth(1, .50); //define a Portlet for showing all Users portletUser = new Portlet(); portletUser.setHeading("Benutzer"); configPanel(portletUser); portletUser.setLayout(new FitLayout()); CompUserList compUserList = new CompUserList(); portletUser.add(compUserList); portletUser.setHeight(250); //define a Portlet for showing all Vehicles portletVehicles = new Portlet(); portletVehicles.setHeading("Fahrzeuge"); configPanel(portletVehicles); portletVehicles.setLayout(new FitLayout()); CompVehicleList compVehicleList = new CompVehicleList(); portletVehicles.add(compVehicleList); portletVehicles.setHeight(250); //define a portlet for showing all countries portletCountries = new Portlet(); portletCountries.setHeading("Länder"); configPanel(portletCountries); portletCountries.setLayout(new FitLayout()); CompCountryList compCountryList = new CompCountryList(); portletCountries.add(compCountryList); portletCountries.setHeight(250); //add both Portlets to Portal portal.add(portletUser, 0); portal.add(portletVehicles, 1); So first of all this works fine and looks great :-) Now i have a a button in a accordeon menu. The Listener on this button should hide all portlets in the portal (at this time its the portletUser and portletVehicles) and then add another portlet (for example the portletCountries): portletUser.hide(); portletVehicles.hide(); portal.add(portletCountries, 0) Question from above again ;-) Is it possible to make a kind of "clear-Portal" or "hide all portles" for a defined Portal? Or have i always manually clear the portal like in my example code above? What is the best practice for this functionallity? Thanks all for your tips! Lars.

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• Web Safe Area (optimal resolution) for web app design

  - by M.A.X

  I'm in the process of designing a new web app and I'm wondering for what 'web safe area' should I optimize the app layout and design. I did some investigation and thinking on my own but wanted to share this to see what the general opinion is. Here is what I found: Optimal Display Resolution: w3schools web stats seems to be the most referenced source (however they state that these are results from their site and is biased towards tech savvy users) http://www.w3counter.com/globalstats.php (aggregate data from something like 15,000 different sites that use their tracking services) StatCounter Global Stats Display Resolution (Stats are based on aggregate data collected by StatCounter on a sample exceeding 15 billion pageviews per month collected from across the StatCounter network of more than 3 million websites) NetMarketShare Screen Resolutions (marketshare.hitslink.com) (a web analytics consulting firm, they get data from browsers of site visitors to their on-demand network of live stats customers. The data is compiled from approximately 160 million visitors per month) Display Resolution Summary: There is a bit of variation between the above sources but in general as of Jan 2011 looks like 1024x768 is about 20%, while ~85% have a higher resolution of at least 1280x768 (1280x800 is the most common of these with 15-20% of total web, depending on the source; 1280x1024 and 1366x768 follow behind with 9-14% of the share). My guess would be that the higher resolution values will be even more common if we filter on North America, and even higher if we filter on N.American corporate users (unfortunately I couldn't find any free geographically filtered statistics). Another point to note is that the 1024x768 desktop user population is likely lower than the aforementioned 20%, seeing as the iPad (1024x768 native display) is likely propping up those number. My recommendation would be to optimize around the 1280x768 constraint (*note: 1280x768 is actually a relatively rare resolution, but I think it's a valid constraint range considering that 1366x768 is relatively common and 1280 is the most common horizontal resolution). Browser + OS Constraints: To further add to the constraints we have to subtract the space taken up by the browser (assuming IE, which is the most space consuming) and the OS (assuming WinXP-Win7): Win7 has the biggest taskbar footprint at a height of 40px (XP's and Vista's is 30px) The default IE8 view uses up 25px at the bottom of the screen with the status bar and a further 120px at the top of the screen with the windows title bar and the browser UI (assuming the default 'favorites' toolbar is present, it would instead be 91px without the favorites toolbar). Assuming no scrollbar, we also loose a total of 4px horizontally for the window outline. This means that we are left with 583px of vertical space and 1276px of horizontal. In other words, a Web Safe Area of 1276 x 583 Is this a correct line of thinking? I tried to Google some design best practices but most still talk about designing around 1024x768 which seems to be quickly disappearing. Any help on this would be greatly appreciated! Thanks.

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• Java Threading Concept Understanding

  - by Nirmal

  Hello All... Recently I have gone through with one simple threading program, which leads me some issues for the related concepts... My sample program code looks like : class NewThread implements Runnable { Thread t; NewThread() { t = new Thread(this, "Demo Thread"); System.out.println("Child thread: " + t); t.start(); // Start the thread } public void run() { try { for (int i = 5; i > 0; i--) { System.out.println("Child Thread: " + i); Thread.sleep(500); } } catch (InterruptedException e) { System.out.println("Child interrupted."); } System.out.println("Exiting child thread."); } } class ThreadDemo { public static void main(String args[]) { new NewThread(); // create a new thread try { for (int i = 5; i > 0; i--) { System.out.println("Main Thread: " + i); Thread.sleep(1000); } } catch (InterruptedException e) { System.out.println("Main thread interrupted."); } System.out.println("Main thread exiting."); } } Now this program giving me the output as follows : Child thread: Thread[Demo Thread,5,main] Main Thread: 5 Child Thread: 5 Child Thread: 4 Main Thread: 4 Child Thread: 3 Child Thread: 2 Main Thread: 3 Child Thread: 1 Exiting child thread. Main Thread: 2 Main Thread: 1 Main thread exiting. So, that's very much clear to me. But as soon as I am replacing the object creation code (calling of a NewThread class constructor) to as follows : NewThread nt = new NewThread(); // create a new thread the output becomes a bit varied like as follows : Child thread: Thread[Demo Thread,5,main] Main Thread: 5 Child Thread: 5 Child Thread: 4 Child Thread: 3 Main Thread: 4 Child Thread: 2 Child Thread: 1 Main Thread: 3 Exiting child thread. Main Thread: 2 Main Thread: 1 Main thread exiting. And some times it's giving me same output in both the cases. So, i am not getting the exact change in both the scenario. I would like to know that you the variation in the output is coming here ? Thanks in advance...

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• SVN: Create a dump file of a folder

  - by DarkJaff

  I'm trying to create a dump file of a folder in my SVN repository.(My goal is to import this dump on another repository, but that's another story). I've read like 20 pages about this and they all tell me to use svndumpfilter but I can't seem to make it work. Here is my command: C:\>svnadmin dump d:/SvnData/TestingSVN/ | svndumpfilter include /TestingSVN/Trunk/Fms/ > d:\FMS.txt The output in the command line is this strange thing: Including prefixes: '/TestingSVN/Trunk/Fms' * Dumped revision 0. Revision 0 com*m iDtutmepde da sr e0v.isi n 1. Revision 1 committed as 1. * Dumped revision 2. Revision 2 committed a*s D2u.mpe revision 3. Revisio*n D3u mcpoemdm irtetveids iaosn 34.. Revision* 4D ucmopmemdi trteevdi saiso n4 .5. Revision 5 com*m iDtutmepde da sr e5v.isi n 6. Revision 6 commi*t tDeudm paesd 6r.evi ion 7. Revisio*n D7u mcpoemdm irtetveids iaosn 78.. Revision *8 Dcuommpmeidt treedv iassi o8n. 9. Revision 9* cDoummmpietdt erde vaiss i9o.n 1 . Revisi*o nD u1m0p ecdo mrmeivtitseido na s1 11.0 . Revision 11 *c oDmummiptetde dr eavsi s1i1o.n 1 . Revision 12 committed* aDsu m1p2e.d r vision 13. Revision 13 committ*e dD uamsp e1d3 .rev sion 14. Revision 14 commit*t eDdu mapse d1 4r.evi ion 15. Revision 15 committed as 15. * Dumped revision 16. Revision 16 committed as 16. Dropped 83 nodes: '/Branches' '/Branches/305' '/Branches/305/New Text Document.txt' '/Fms' '/Fms/ADPropertySheet.cpp'** etc. for 83 nodes... Also, the dump file itself is only 3 kb and contain no real data, only things like that (this is not the complete dump, just a sample) SVN-fs-dump-format-version: 2 UUID: 592fc9f0-5994-e841-a4dc-653714c95216 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2009-06-19T15:05:52.001352Z PROPS-END Revision-number: 1 Prop-content-length: 112 Content-length: 112 K 7 svn:log V 38 This is an empty revision for padding. K 8 svn:date V 27 2009-06-19T15:11:29.378511Z PROPS-END Can anybody help me sort this out?

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• How to limit JTextArea max Rows and Coloums?

  - by Billbo bug

  I am using JTextArea in JScrollPane I want to limit the maximum number of lines possible and the maximum chars in each line. I need that the string will be exactly like on the screen, each line will end with '\n' (if there another line after it) and the user will be able to insert only X lines and Y chars in each line. I tried to limit the lines but i don't know exactly how many lines do i have because of the line wrapping, The line wrapping is starting new line visualy on the screen(because of the width of the JTextArea) but in the string of the component it is really the same line with no '\n' to indicate new line. I do not have an idea how to limit the max chars in each line while typing. There are 2 stages: The typing of the string- keep that the user will not be able to type more then X lines and Y chars in each line. (even if the line wrap only visualy or the user typed '/n') Insert the string to the DB- after cliking 'OK' convert the string that every line will end with "/n" even if the user did not typed it and the line was wrapped only visualy. There are few problems if i will count the chars in the line and insert '/n' in the end of the line, thats why i decided to do it in two stages. In the first stage ehile the user is typing i would rather only limit it visualy and force line wrpping or something similar. Only in the second stage when i save string i will add the '/n' even if the user did not typed it in the end of the lines! Does anyone have an idea? I know that i will have to use DocumentFilter OR StyledDocument. Here is sample code that limit only the lines to 3:(but not the chars in row to 19) private JTextArea textArea ; textArea = new JTextArea(3,19); textArea .setLineWrap(true); textArea .setDocument(new LimitedStyledDocument(3)); JScrollPane scrollPane = new JScrollPane(textArea public class LimitedStyledDocument extends DefaultStyledDocument /** Field maxCharacters */ int maxLines; public LimitedStyledDocument(int maxLines) { maxCharacters = maxLines; } public void insertString(int offs, String str, AttributeSet attribute) throws BadLocationException { Element root = this.getDefaultRootElement(); int lineCount = getLineCount(str); if (lineCount + root.getElementCount() <= maxLines){ super.insertString(offs, str, attribute); } else { Toolkit.getDefaultToolkit().beep(); } } /** * get Line Count * * @param str * @return the count of '\n' in the String */ private int getLineCount(String str){ String tempStr = new String(str); int index; int lineCount = 0; while (tempStr.length() > 0){ index = tempStr.indexOf("\n"); if(index != -1){ lineCount++; tempStr = tempStr.substring(index+1); } else{ break; } } return lineCount; } }

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• Three ways of ataching to events with dojo. What exactly is the difference?

  - by Mark

  Is the difference here just various syntactical sugars or is there a reason to use one approach over the other? They all work, and to be a little more confusing what is the difference between this and evt.currentTarget? the CSS #reportDetails table tr:hover td, #reportDetails table tr.hover td { background: #aae4e2; color: #333333; } Sample html <div id="reportDetails"> <table> <tr> <td> something</td> <td> soemthing else</td> </tr> <tr> <td> something2</td> <td> soemthing else2</td> </tr> </table> </div> dojo.behavior script dojo.require("dojo.behavior"); if (dojo.isIE <= 6) { dojo.behavior.add({ '#reportDetails tr': { onmouseover: function(evt){ dojo.addClass(evt.currentTarget, "hover");}, onmouseout: function(evt){dojo.removeClass(evt.currentTarget, "hover"); } } }); } dojo.behavior.apply(); dojo.query forEach script if (dojo.isIE <= 6) { dojo.addOnLoad(function() { dojo.query("tr", "reportDetails").forEach(function(node){ node.onmouseover=function(){dojo.addClass(node,"hover");} node.onmouseout=function() {dojo.removeClass(node,"hover");} } }); }); } dojo.query ataching straight to the events if (dojo.isIE <= 6) { dojo.addOnLoad(function(){ dojo.query("tr", "reportDetails") .onmouseover(function(evt){dojo.addClass(evt.currentTarget, "hover");}) .onmouseout(function(evt){dojo.removeClass(evt.currentTarget, "hover");}); }); } I am assuming that evt.currentTarget and node could all be replaced with this and still work. I believe there is no real difference between 2 and 3 but the first one might actually use a different approach.

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