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• Simplest way to create a wrapper class around some strings for a WPF DataGrid?

  - by Joel

  I'm building a simple hex editor in C#, and I've decided to use each cell in a DataGrid to display a byte*. I know that DataGrid will take a list and display each object in the list as a row, and each of that object's properties as columns. I want to display rows of 16 bytes each, which will require a wrapper with 16 string properties. While doable, it's not the most elegant solution. Is there an easier way? I've already tried creating a wrapper around a public string array of size 16, but that doesn't seem to work. Thanks *The rational for this is that I can have spaces between each byte without having to strip them all out when I want to save my edited file. Also it seems like it'll be easier to label the rows and columns.

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• Determining the number of objects in an NSArray

  - by Viral

  Hi friends, I am making a book application. To move to the next topic I am using a button. The Button works as it moves to the next topic, but at the end of the file my application gets the message obj_fatal and it crashes. If I knew how many objects there are in my NSArray then the problem will be solved. I am getting the details from a .plist file and storing it in to a array. So if any one knows how, please let me know. Thanks in advance. Viral.

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• Implementing a runtime Look Up Table in C#

  - by Yarok

  Hey all, I'm currently working on a robot interface GUI, using C#. The robot has two sensors, and two powered wheels. I need to let the user the option to load a Look Up Table (LUT) during runtime, one for each sensor, that will tell the robot what to do according to the sensor's reading. I think the best way to do it is using a .csv file, formatted like so: index , right wheel order, left wheel order the index is an int between 0-1023 and is actually the sensor's reading. the orders for the right and left wheel are integers, between -500 - 500. Example - left sensor's readings: 1,10,20 meaning: sensor reads 1 -- left wheel 10 rpm right wheel 20 rpm So my question is this: what is the best way to implement it? using a dataset?(if so, how?) using an array? (if so, how do I load it during runtime?) Any help would be much appreciated, Yarok

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• Undefined method 'total_entries' after upgrading Rails 2.2.2 to 2.3.5

  - by Trevor

  I am upgrading a Rails application from 2.2.2 to 2.3.5. The only remaining error is when I invoke total_entries for creating a jqgrid. Error: NoMethodError (undefined method `total_entries' for #<Array:0xbbe9ab0>) Code snippet: @route = Route.find( :all, :conditions => "id in (#{params[:id]})" ) { if params[:page].present? then paginate :page => params[:page], :per_page => params[:rows] order_by "#{params[:sidx]} #{params[:sord]}" end } respond_to do |format| format.html # show.html.erb format.xml { render :xml => @route } format.json { render :json => @route } format.jgrid { render :json => @route.to_jqgrid_json( [ :id, :name ], params[:page], params[:rows], @route.total_entries ) } end Any ideas? Thanks!

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• Python universal feedparser xml

  - by timg

  I am trying to read an xml feed with the python feedparser, but cannot seem to navigate the elements. Here is what I am trying: import feedparser d = feedparser.parse('http://www.website.com/feed') text= d.status.test and here is the xml: <?xml version="1.0" encoding="UTF-8"?> <statuses type="array"> <status> <created>Tue Dec 21 14:16:12 +0000 2010</created> <id>123</id> <text>Hello</text> </status> </statuses>

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• Why is $file empty in custom symfony file validator?

  - by codecowboy

  I am setting a custom file validator for a file input field in Symfony 1.4 (Doctrine) $this-setValidator('filename', new sfValidatorFile(array( 'mime_types' = 'web_images', 'path' = sfConfig::get('sf_upload_dir').'/animals', 'validated_file_class' = 'CustomValidatedFile', 'required' =false ))); I then want to override the save method to generate some thumbnails: class CustomValidatedFile extends sfValidatedFile { private $savedFilename; // Override sfValidatedFile's save method public function save($file = null, $fileMode = 0666, $create = true, $dirMode = 0777) { $this-savedFilename = $this-generateFilename(); // This makes sure we use only one savedFilename (it will be the first) if ($this-savedFilename === null ) { $this-savedFilename = $file; } $thumbnail = new sfThumbnail(150,150); $thumbnail-loadFile($this-getTempName()); $thumbnail-save(sfConfig::get('sf_upload_dir').'/thumbnails/thumb_'.$this-savedFilename); // Let the original save method do its magic :) return parent::save($this->savedFilename, $fileMode, $create, $dirMode); } } This fails with the error "The file "" is not readable." This is coming from sfThumbnailPlugin because the value of $file is null. My question is why is $file null?

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• Read a file with 2048 bytes

  - by Suresh S

  Guys i have a file which has only one line. The file has no encoding it is a simple text file with single line. For every 2048 byte in a line , there is new record of 151 byte (totally 13*151 byte = 1945 records + 85 byte empty space). similarly for the next 2048 bytes. What is the best file i/o to use? i am thinking of reading 2048 bytes from file and storing it in an array . while (offset < fileLength &&(numRead=in.read(recordChunks, offset,alength)) >= 0) { } how can i get from the read statement only 2048 bytes at a time . i am getting IndexOutofBoundException.

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• How to check image during animation

  - by TomTom

  I have set up an animation in the following way (self is an UIImageView, myImages an Array of UIImages): self.animationImages = myImages; self.animationDuration = 50; self.animationRepeatCount = 0; [self startAnimating]; During the animation I'd like to check the current image. I tried it the following way if([self image]==[UIImage imageNamed:@"image1.png"]); but this does not work. Is there a straight forward way for this? Can I keep track of which image is shown during the animation?

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• how to use multiple $_name using extends Zend_Db_Table_Abstract in zend frame work.

  - by karthik

  we tried to give our tables(users,messages) like this in two different abstract classes but it is not working. This is included in a file childconnect1.php ,is there any relation between the file name(childconnect1.php) and the class(Application_Model_childconnect1). class Application_Model_childconnect1 extends Zend_Db_Table_Abstract { protected $_name = 'users'; public function loginvalidation($username,$pwd) { $row = $this->fetchRow('UserName = \'' . $username . '\'and UserPW = \''. $pwd . '\''); if (!$row) { $msg="invalid"; return $msg; } else { return $row->toArray(); } } } class Application_Model_childconnect2 extends Zend_Db_Table_Abstract { protected $_name = 'messages'; public function replymessage($message) { $data=array( 'MessageText'=>$message ); $this->insert($data); } }

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• C++ USB Programming

  - by JB_SO

  Hi, I am new to hardware programming(especially USB) so please bear with me and my questions. I am using C++ and I need to send/receive some data (a byte array) to/from a USB port on a microprocessor board. Now, I have done some serial port programming before and I know that for a serial port you have to open a port, setup, perform i/o and finally close the port. I am guessing to use a USB port, it is not as simple as what I mentioned above. I do know that I want to use Microsoft standard drivers and implement standard Windows IO commands to accomplish this, since I believe there are no drivers for the microprocessor board for me to interact with. If somebody can point me in the right direction as to the steps needed to "talk" to a USB port (open, setup, i/o) via standard Windows IO commands, I would truly and greatly appreciate it. Thanks you so much!!

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• Got a static var which is working, now need to get dynamic var which isnt working

  - by Ritz

  got this variable var zvmlist = { 'Huishoudelijke hulp': 'Huishoudelijke hulp', 'Verpleging thuis': 'Verpleging thuis', 'Verzorging thuis': 'Verzorging thuis', '24 uurs zorg': '24 uurs zorg', 'Ondersteunende begeleiding': 'Ondersteunende begeleiding', }; this var is used in a function to create a dropdownlist. $.each(zvmlist, function(key, value) { var selected=''; if(key==eventdata.title){var selected='selected' } $('<option value="'+key+'" '+selected+'>'+value+'</option>').appendTo($('#calendar_edit_entry_form_title')); }); which works lika a charm. Now i created a function to fetch the list from a mysql table. $.get('get_zorgvormen.php', function(data) { var zvmlist = '{'+data+'}'; //alert(zvmlist); }); when i enable the alert function it shows me the var(array). But i it wont act as a variable. How can i pass this data to my .each function? see it in action here: http://www.zorgzuster-zeeland.nl/site/static/calendar_test.php

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• Why do i get a 403 error when viewing a Drupal custom menu item via clean url?

  - by Chaulky

  Hi all, I've created a custom menu item in my Drupal 6 website by defining it in a custom module. This is an extremely simple MENU_NORMAL_ITEM menu item. The menu item is defined as /** * Implementation of hook_menu(). */ function menu_test_menu() { $items['menu_test'] = array( 'title' => 'Menu Test', 'page callback' => 'menu_test_hello', 'access callback' => TRUE, 'type' => MENU_NORMAL_ITEM, ); return $items; } Since I have clean URLs on, the path should be www.example.com/menu_test. That URL gives me a 403 error. But, if I enter www.example.com/?q=menu_test, everything works fine. Why am I getting the 403 error? The menu item is useless because it's always trying to go to the clean URL path, which should work but doesn't for some reason. Thanks for the help!

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• android settings (provider)?

  - by lorenzoff

  Hello to all, i'd like to substitute the default preferences setting activity (vertical, icon-title pair list) with a grid view that better fit a large landscape display. About, let's say, the audio preferences, i add an icon to a GridView and, on item click event, i use this code startActivityForResult(new Intent(android.provider.Settings.ACTION_SOUND_SETTINGS), 0); Is it possible to get the default settings icon? If i could use an ipotetic getDrawable(android.R.drawable.default_icon_for_audio_preferences_settings), I would to maintain the default icon also in my preferences grid. A preferences provider exists? Looking at my development device preferences i can see Wireless, call, audio, display and so on. I have to add the same preferences to my grid because i know a priori about their existence or there is a provider that can supply me this array? Thanks in advance L.

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• R problem with apply + rbind

  - by Carl

  I cannot seem to get the following to work directory <- "./" files.15x16 <- c("15x16-70d.out", "15x16-71d.out") data.15x16<-rbind( lapply( as.array(paste(directory, files.15x16, sep="")), FUN=read.csv, sep=" ", header=F) ) What it should be doing is pretty straightforward - I have a directory name, some file names, and actual files of data. I paste the directory and file names together, read the data from the files in, and then rbind them all together into a single chunk of data. Except the result of the lapply has the data in [[]] - i.e., accessing it occurs via a[[1]], a[[2]], etc which rbind doesn't seem to accept. Suggestions?

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• Help with regex pulling XML data from response body in PHP

  - by spdaly

  I am working on a project that pulls data from JMS queue using PHP and Zend Framework. The HTTP client response is below. All I need is the XML string. I came up with /(.*)<\/RequestDetails/gs which tests ok on http://gskinner.com/RegExr/ but the preg_match call is returning an empty matches array. I'm going to continue to hunt around for a pattern, but thought I would post here as well. Thanks to all who read, etc... Steve UPDATE: I can't get the code to paste correctly. Here's a link to a pastbin: http://pastebin.com/rQxzcfSg

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• Read XML from an XDocument with silverlight

  - by user625310

  Hi I have managed to load an XDocument with xml data from this link http://go.yr.no/go/e/main/http://www.yr.no/place/Norway/Telemark/Sauherad/Gvarv/forecast.xml. I am using C# and .Net in Blend and producing a web app (ie some of the normal .Net functions is not included in the silverlight plugin). I have researched this a lot but can not figure out: how to put the "text" in the link node in a string variable and how to all put the "-11" from ? in a array and link it to the "time from"? I think i have to use LINQ, but the stuff on MSDN and other tutorials is confusing and to general. huge thank in advance Regards Arnt I am sorry to ask such novice questions, but i have searched a lot. Also please excuse the typos, English is not my first language. Huge thank in advance Arnt

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• Read from file into pointer to struct

  - by cla barzu

  I need help with pointers in C. I have to read from a file, and fill an array with pointers to struct rcftp_msg . Since now I did the next things: struct rcftp_msg { uint8_t version; uint8_t flags; uint16_t len; uint8_t buffer[512]; }; struct rcftp_msg *windows [10]; pfile = fopen(file,"r"); // Open the file I have to read from the file into the buffer, but I don't know how to do it. I tried the next: for (i = 0; i <10; i++){ leng=fread (**windows[i]->buffer**,sizeof(uint8_t),512,pfile); } I think windows[i]-buffer is bad, cuz that don't work. Sorry for my bad English :(

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• Manipulating both unicode and ASCII character set in C#

  - by Murlex

  I have this mapping in my C# application string [,] unicode2Ascii = { { "&#3001;", "\x86" } }; ஹ - is the unicode value for a tamil literal "ஹ". This is the raw hex literal for the unicode value saved by MS Word as a byte sequence. I am trying to map these unicode value "strings" to a hex value under 255 (so as to accommodate non-unicode supported systems). I trying to use string.replace like this: S = S.replace(unicode2Ascii[0,0], unicode2Ascii[0,1]); However the resultant ouput has a ? instead of the actual hex 0x86 stored. Any pointer on how I could set the encoding for the second element of that array to something like windows-1252? Or is there a better way to do this conversion? thanks in advance

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• Config file format

  - by Felics

  Hello, does anyone knows a file format for configuration files easy to read by humans? I want to have something like tag = value where value may be: String Number(int or float) Boolean(true/false) Array(of String values, Number values, Boolean values) Another structure(it will be more clear what I mean in the fallowing example) Now I use something like this: IntTag=1 FloatTag=1.1 StringTag="a string" BoolTag=true ArrayTag1=[1 2 3] ArrayTag2=[1.1 2.1 3.1] ArrayTag3=["str1" "str2" "str3"] StructTag= { NestedTag1=1 NestedTag2="str1" } and so on. Parsing is easy but for large files I find it hard to read/edit in text editors. I don't like xml for the same reason, it's hard to read. INI does not support nesting and I want to be able to nest tags. I also don't want a complicated format because I will use limited kind of values as I mentioned above. Thanks for any help.

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• How to make <option selected="selected"> set by MySql and PHP?

  - by Binyamin

  How to make <option selected="selected"> set by MySql and PHP? My code: echo '<select>'; $tempholder = array(); $rs = mysql_query("SELECT * FROM id ORDER BY year"); $nr = mysql_num_rows($rs); for ($i=0; $i<$nr; $i++){ //if($year=$r["year"]){ $selected=' selected="selected"'; }//doesn't work so $r = mysql_fetch_array($rs); if (!in_array($r['year'], $tempholder)){ $tempholder[$i] = $r['year']; echo "<option>".$r["year"]."</option>";//<option$selected>... } } unset($tempholder); echo '</select>';

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• Gmail zend imap - latency when fetching messageids

  - by T.B Ygg

  i have this code to fetch emails from gmail using imap with the zend framework. i go back 2 days in my search (as i do not want all messages) all works well but it takes forever to load the messages and i need to do this for 5+ users, it seems like the search goes through the entire gmail message archive in getting the newest ones. my code looks like this: $dato = date('j-F-Y', strtotime($Date. ' - 2 days')); $dato = "SINCE ".$dato; $messageids = $imap->search(array($dato)); any ideas on how to make zend work faster?

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• Check the cumulative status of onLoadInit in a for statement

  - by jonobr1

  In a setup like this is it possible to check the cumulative status of all onLoadInit? for(var i:Number = 0; i < limit; i++) { var mcLoader:MovieClipLoader = new MovieClipLoader(); var mclListener:Object = new Object(); mclListener.onLoadInit = function(mc:MovieClip) { trace(i + " is finished loading!"); } mcLoader.addListener(mclListener); mcLoader.loadClip(some_image_path, someMovieClip); } Initially I was thinking that I could pass an array of Boolean's, but I'm not really sure where to add that checkpoint, because a flash frame doesn't keep looping. Would I have to add it to an onEnterFrame()?

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• How should I get the value contained in a particular field of a Drupal 7 custom node?

  - by Matt V.

  What is the "proper" way to get the value stored in a particular field within a custom Drupal node? I've created a custom module, with a custom node, with a custom URL field. The following works: $result = db_query("SELECT nid FROM {node} WHERE title = :title AND type = :type", array( ':title' => $title, ':type' => 'custom', ))->fetchField(); $node = node_load($result); $url = $node->url['und']['0']['value']; ...but is there a better way, maybe using the new Field API functions?

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• Zend Framework url redirect

  - by Uffo

  <?php class PI_Controller_Plugin_AssetGrabber extends Zend_Controller_Plugin_Abstract { public function dispatchLoopStartup(Zend_Controller_Request_Abstract $request) { /* The module name */ $moduleName = $request->getModuleName(); /* This modules requires the user to be loggedin in order to see the web pages! */ $loginRequiredModules = array('admin'); if (in_array($moduleName,$loginRequiredModules)) { $adminLogin = new Zend_Session_Namespace('adminLogin'); if (!isset($adminLogin->loggedin)) { /*-------------------------------------- Here I want to redirect the user */ $this->_redirect('/something'); } } } } I'm trying to do a redirect $this->_redirect('/something') but doesn't work! Do you know how can I do a redirect in this case? Best Regards,

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• Using system time directly to get random numbers

  - by Richard Mar.

  I had to return a random element from an array so I came up with this placeholder: return codes[(int) (System.currentTimeMillis() % codes.length - 1)]; Now than I think of it, I'm tempted to use it in real code. The Random() seeder uses system time as seed in most languages anyway, so why not use that time directly? As a bonus, I'm free from the worry of non-random lower bits of many RNGs. It this hack coming back to bite me? (The language is Java if that's relevant.)

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