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• How to use Visual Studio debugger visualizers built against a different framework version?

  - by michielvoo

  I compiled the ExpressionTreeVisualizer project found in the Visual Studio 2010 samples but when I try to use it in a .NET 3.5 project I get the exception below: Could not load file or assembly 'file:///C:\Program Files (x86)\Microsoft\Visual Studio 2010\Common7\Packages\Debugger\Visualizers\ExpressionTreeVisualizer.dll' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. The sample project had the TargetFrameworkVersion set to v4.0 and after changing it to v3.5 and building it now works in my project. I changed the source code and project file and rebuilt it so that I now have two expression tree visualizers, one for v3.5 projects and one for v4.0 projects. Is there a better way? Thanks!

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• Capturing a NSParseErrorException

  - by Martin

  Could someone tell me how I can capture a NSParseErrorException? The Situation: my app downloads a small .plist file. I convert this into dictionary using the string method -propertylist. This normally works fine. I check for a connection before going to retrieve the file, so it works fine if I've got a connection to the internet, and works fine when I don't. However, I discovered a use case that crashes. If I'm at location that requires authetication before connecting to the internet (at Starbucks, say) what's being returned by the app isn't a plist and the attempt to parse it causes the application to crash. So is there a way to transform my code so that the NSParseErrorException is caught and rather than crashing the program I can just skip over this piece of code? NSDictionary *temp = [myDownloadString propertyList]; I tried doing this if ([myDownloadString propertyList]==NSParseErrorException){ //do something } but that didn't work.

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• Google Vizualization with CSV data

  - by Shlomo Shmai

  Hi, I have a URL that returns data in CSV format. I would like to use Google Vizualization to create an interactive chart of the data. I've looked at several examples on Google Chart and Vizualization web page but I'm a bit confused as I'm not familiar with JavaScript or web programming in general. Question: Do I have to use JavaScript to parse the CSV string myself and manually construct the DataTable with addColumn() and addRows()? Or, is there a way to simply pass the CSV url to the charting function? I'm hoping to do something like this: var csv_data = get_data_from_url('http://...') var data = new google.visualization.DataTable(csv_data); var chart = new google.visualization.PieChart(document.getElementById('chart_div')); chart.draw(data, ...); Can someone please help me out? Thanks.

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• Issue on passing a checkbox set to an AppEngine script through jQuery Ajax/Json

  - by Jorge

  I have a set of checkboxes with multiple choice allowed. I parse the set this way: if ($("input[name='route_day']:checked").length > 0) { $("input[name='route_day']:checked").each(function(){ if(this.value != null) route_days_hook.push(this.value); }); dataTrap.route_days = $.JSON.encode(route_days_hook); } ...and pull the whole dataTrap to an AppEngine Python script via jQuery ajax. However, the Python script just bugs. If i change dataTrap.route_days value to a string instead of the JSON encoded object, everything works fine. My question is: how can i pass a checkbox set to the script using Ajax and still be able to iterate over it on the script?

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• Weird behaviour of a deserialized class

  - by orloffm

  I've got a huge XML file that's being deserialized by XmlSerializer in an XSD-generated class structure. Everything used to work just fine, but now a weird thing started happening. Sometimes (50% of runs) a field of a certain object of a class that's deep in the class tree just changes to a certain value of the same field of a different object of the same class. It happens when entering some function, when debugger steps from opening "{" to the first line of code. I understand that it's stupid question, but maybe someone have any thoughts?

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• How can I determine file encodings on Windows / IIS ?

  - by Dylan Beattie

  From the answers to this question it appears there's a file somewhere on our server that's been saved with the wrong encoding. I've seen this happen before - most often when pasting from Word into Visual Studio, when "smart quotes" can interfere with Visual Studio's encoding settings when saving the file. Thing is - the problem I'm having involves 20-30 different script files, include files and so on (hey, that was how we kept it modular back in the day...) and I really don't want to open every one of them in Visual Studio and check the file encodings individually. Is there any way I can analyze a folder tree full of files and spit out a list of each filename along with the text encoding used to save the file? (Or - if encodings aren't clearly specified - work out what encoding Microsoft IIS thinks was used to save the file?)

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• How to get object properties of specific class in SPARQL

  - by udayalkonline

  hi, I have some ontology(campus.owl).There are tree classes(Student,Sport,Lecturer).Student class is joined with Lecturer class using "has" object property and Student class joined with Sport class with "isPlay" object property. problem I want to get the object property between Student and Lecturer using some SPARQL query. PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema# PREFIX rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# PREFIX my: http://www.semanticweb.org/ontologies/2010/5/Ontology1275975684120.owl# SELECT ?prop WHERE { ?prop ..........??? } Any Idea..?? Thank in advance!

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• How can Perl interact with an ajax form

  - by Jeff

  I'm writing a perl program that was doing a simple get command to retrieve results and process them. But the site has been updated and now has a java component that handles the results (so the actual data is not in the source code anymore). This is the site: http://wro.westchesterclerk.com/legalsearch.aspx Try putting in: Index Number: 11103 Year: 2009 I want to be able to pro grammatically enter the "index number" and "year" at the bottom of the form where it says "search by number" and then retrieve the results listed next to it. I've written many programs in Perl that simply pass variables via the URL and the results are listed in the source code, so it's easy to parse. (Using LWP:Simple) Like: $html = get("http://www.url.com?id=$somenum&year=$someyear") But this is totally new to me and I don't know where to begin. I'm somewhat familiar with LWP:UserAgent and Mechanize. I'd really appreciate any help. Thanks!

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• Huge file in Clojure and Java heap space error

  - by trzewiczek

  I posted before on a huge XML file - it's a 287GB XML with Wikipedia dump I want ot put into CSV file (revisions authors and timestamps). I managed to do that till some point. Before I got the StackOverflow Error, but now after solving the first problem I get: java.lang.OutOfMemoryError: Java heap space error. My code (partly taken from Justin Kramer answer) looks like that: (defn process-pages [page] (let [title (article-title page) revisions (filter #(= :revision (:tag %)) (:content page))] (for [revision revisions] (let [user (revision-user revision) time (revision-timestamp revision)] (spit "files/data.csv" (str "\"" time "\";\"" user "\";\"" title "\"\n" ) :append true))))) (defn open-file [file-name] (let [rdr (BufferedReader. (FileReader. file-name))] (->> (:content (data.xml/parse rdr :coalescing false)) (filter #(= :page (:tag %))) (map process-pages)))) I don't show article-title, revision-user and revision-title functions, because they just simply take data from a specific place in the page or revision hash. Anyone could help me with this - I'm really new in Clojure and don't get the problem.

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• Programmatically access document properties

  - by ngm

  Is there a way in which I can programmatically access the document properties of a Word 2007 document? I am open to using any language for this, but ideally it might be via a PowerShell script. My overall aim is to traverse the documents somewhere on a filesystem, parse some document properties from these documents, and then collate all of these properties back together into a new Word document. (I essentially want to automatically create a document which is a list of all documents beneath a certain folder of the filesystem; and this list would contain such things as the Title, Abstract and Author document properties; the CreateDate field; etc. for each document)

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• commons-exec: Executing a program on the system PATH?

  - by Stefan Kendall

  I'm trying to execute a program (convert from ImageMagick, to be specific) whose parent folder exists on the path. Ergo, when I run convert from the command line, it runs the command. The following, however, fails: String command = "convert" CommandLine commandLine = CommandLine.parse(command); commandLine.addArgument(...) ... int exitValue = executor.execute(commandLine); If I specify the full path of the convert executable (C:\Program files\...) then this code works. If I don't do this, I get an exception thrown with exit value 4. How do I get commons-exec to recognize the system path?

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• NSString: EOL and rangeOfString issues

  - by carloe

  Could someone please tell me if I am missing something here... I am trying to parse individual JSON objects out of a data stream. The data stream is buffered in a regular NSString, and the individual JSON objects are delineated by a EOL marker. if([dataBuffer rangeOfString:@"\n"].location != NSNotFound) { NSString *tmp = [dataBuffer stringByReplacingOccurrencesOfString:@"\n" withString:@"NEWLINE"]; NSLog(@"%@", tmp); } The code above outputs "...}NEWLINE{..." as expected. But if I change the @"\n" in the if-statement above to @"}\n", I get nothing.

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• Lexing partial SQL in C#

  - by Chris T

  I'd need to parse partial SQL queries (it's for a SQL injection auditing tool). For example '1' AND 1=1-- Should break down into tokens like [0] => [SQL_STRING, '1'] [1] => [SQL_AND] [2] => [SQL_INT, 1] [3] => [SQL_AND] [4] => [SQL_INT, 1] [5] => [SQL_COMMENT] [6] => [SQL_QUERY_END] Are their any at least lexers for SQL that I base mine off of or any good tools like bison for C# (though I'd rather not write my own grammar as I need to support most if not all the grammar of MySQL 5)

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• git: programmatically know by how much the branch is ahead/behind a remote branch

  - by Olivier

  I would like to extract the information that is printed after a github status, which looks like: # On branch master # Your branch is ahead of 'origin/master' by 2 commits. Of course I can parse the output of git status but this is not recommended since this human readable output is liable to change. There are two problems: How to know the remote tracked branch? It is often origin/branch but need not be. How to get the numbers? How to know whether it is ahead/behind? By how many commits? And what about the diverged branch case?

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• xsl with javascript

  - by Vignesh

  I've a file with xml data. And I want to generate a report out of it. I tried to integrate xsl with java script, but can I get a handle of individual data elements in xsl and pass it on to a java script function. Lets say <value>true</value> is in the xml and I want to pass it on to a javascript function while doing something like this in xsl. <xsl:for-each select="/valgroup"> <xsl:value-of select="value"/> </xsl:for-each> The alternative is to parse the xml in java script and get the values, I've got little idea of how to integrate it with xsl. Are there any java script libraries. I've seen my libraries that run on servers(AJAXSLT), but I need something that runs locally. I'm a new to xslt, so consider this a worthy question.

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• Android Lightweight HTML Template Engine

  - by Anthoni Gardner

  Hello, I am after a very lightweight template engine that supports / can be embedded inside Android programs. I've looked at the MiniTemplator (I think that is how you spell it) and that looks great but it loads in only from file and I need to load templates from string and I am not fully confident in changing that code lol. Can anyone recommend a very lightweight (preferably no jars, single source files etc) that I can use ? I do not need it to parse XML or anything like, just normal HTML files with keywords embedded into them betwee %% tags etc. Regards Anthoni

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• Injecting an XML fragment into the current document from an external file

  - by makenai

  I'm currently parsing an XML file using REXML and trying to come up with a way of inserting an XML fragment from an internal file. Currently, I'm using some logic like the following: doc.elements.each('//include') do |element| handleInclude( element ) end def handleInclude( element ) if filename = element.attributes['file'] data = File.open( filename ).read doc = REXML::Document.new( data ) element.parent.replace_child( element, doc ) end end Where my XML looks like the following: <include file="test.xml" /> But this seems a little bit clunky, and I'm worried that REXML might not always parse XML fragments correctly due to absence of a proper root node in some cases. Is there a better way of doing this? Concern #2: REXML seems not to pick up my changes after I replace elements. For example, after making a change: doc.elements.each('rootNode/*') do |element| end ..picks up neither the original element I replaced, nor the one I replaced it with. Is there some trick to getting REXML to rescan its' tree?

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• friendly url in categories

  - by ntan

  Hi to all, i am trying to use friendly url for my categories. Example Database cat_id | parent_id | name | url 1 0 cat1 cat1 2 1 cat2 cat2 My approach to do is to pass the parameter cat with url value for example show.php?cat=cat1 and in .htaccess i must rewrite to /cat1 BUT what about when i want to access cat2. I want to rewrite as cat1/cat2 so the parameter is show.php?cat=cat1/cat2 and then parse the value to secure that cat2 belong to cat1. And so on. I am not using MVC so i have to do it on my own. Please if any other solutions is better please advice or suggest me reading Thank in advance.

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• Reliable way to get the "ancestor" of an object with a specific classname, using jQuery

  - by Matt Dawdy

  I've got a javascript function that gets called on change event of a select form element. So, the "this" variable in js refers to the select element. This select element is in a td tag, in a tr tag. The tr tag has a classname of "FilterDetailsRow". Now, I've tested, and if I use this syntax: var filterRow = $(this).parent().parent(); it gets me what I want. However, is there a better way to tell jQuery, "starting with "this" can you please go up my tree of parents until you find one with a classname of "FilterDetailsRow"? Here's what I came up with, but I want to make sure I"m not reinventing the wheel. function GetFilterDetailsRowOfObject(o) { if (o) { if (o.parent()[0].className.indexOf("FilterDetailsRow") != -1) return o; else return GetFilterDetailsRowOfObject(o.parent()); } else { return null; } } Thanks for any advice.

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• WPF ItemsControl - how to know when the items finished loading, so that I can focus the first one?

  - by Tomáš Kafka

  Hi everyone, I have an ItemsControl in my View, that is bound to an ObservableCollection from ViewModel. The collection is filled, and afterwards an event from VM to view is raised (think search results and SearchFinished event). I would like to move keyboard focus to the first item in an ItemsControl, but when I do it in View's code-behind when handling SearchFinished, the items are not yet rendered (the collection is filled already, but wpf's rendering is asynchronous and didn't happen yet), so there is nothing to focus (Focus() needs to have the items' visual tree already constructed). I wanted to do (myItemsControl.ItemContainerGenerator.ContainerFromIndex(0) as UIElement).Focus();, but as the 0th item is not yet loaded, ContainerFromIndex(0) returns null. I tried delaying it with Dispatcher.BeginInvoke... with low priority, but that is dependent on exact timing and usually doesn't work. How can I wait until the first item in ItemsControl is Loaded?

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• Rails CSV import, adding to a related table

  - by Jack

  Hi, I have a csv importing system on my app (used locally only) which parses the csv file line by line and adds the data to the database table. This is based on a tutorial here. require 'csv' def csv_import @parsed_file=CSV::Reader.parse(params[:dump][:file]) n = 0 @parsed_file.each_with_index do |row, i| next if i == 0 #ignore the first row course = Course.new course.title = row[0] course.unit_code = row[1] course.course_type = row[2] course.value = row[3] course.pass_mark = row[4] if course.save n = n+1 GC.start if n%50==0 end flash.now[:message] = "CSV Import Successful, #{n} new courses added to the database." end redirect_to(courses_url) end This is all in the courses controller and works fine. There is a relationship that courses HABTM years and years HABTM courses. In the csv file (effectively in row[5] to row[8]) are the year_id s. Is there a way that I can add this within the method above. I am confused as to how to loop over the 4 items and add them to the courses_years table. Thank you Jack

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• Grouping search results with thinking_sphinx plugin for rails

  - by Shagymoe

  I can use the following to group results, but it only returns one result per group. @results = Model.search params[:search_query], :group_by => 'created_at', :group_function => :day, :page => params[:page], :per_page => 50 So, if I display the results by day, I only get one result per day. <% @results.each_with_groupby do |result, group| %> <div class="group"><%= group %></div> <ul class="result"> <li><%= result.name %></li> </ul> <% end %> Do I have to parse the @results array and group them by date manually or am I missing something? Here is the line from the sphinx docs: http://sphinxsearch.com/docs/current.html#clustering "The final search result set then contains one best match per group."

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• Colouring JTree's TreeNodes

  - by Amadan

  I have a JTree which I give objects that implement the TreeNode interface, and a custom TreeModel to display them (not using DefaultMutableTreeNode). I would like to change the text colour of some nodes. I can't find anything in the docs, except javax.swing.tree.DefaultTreeCellRenderer.setTextNonSelectionColor(Color newColor), but it will change everything indiscriminately, and I only need it for some nodes (specifically, broken links, i.e. nodes whose corresponding files can't be found on the disk, should be greyed out, the rest should be default). Can it be done, and how?

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• help with linq query

  - by Luis

  Hi, i am trying to get some data, but i dont know how can i do a if in linq, this is how i am trying to do from so in db.Operations where ((opType!= "0" ? so.Operation == int.Parse(opType) : false) && (idState!=0 ? so.State == idState : false) && (start != null ? so.StartDate == start : false) && (end !=null ? so.EndDate == end : false)) select so the optype is a Int, the idState is a Int, end is a datetime, start is a datime what i am trying to do is, if those aren't null they add to the query function, so i can get all data together

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• How do you assign a variable with the result of a if..else block?

  - by Pierre Olivier Martel

  I had an argument with a colleague about the best way to assign a variable in an if..else block. His orignal code was : @products = if params[:category] Category.find(params[:category]).products else Product.all end I rewrote it this way : if params[:category] @products = Category.find(params[:category]).products else @products = Product.all end This could also be rewritten with a one-liner using a ternery operator (? :) but let's pretend that product assignment was longer than a 100 character and couldn't fit in one line. Which of the two is clearer to you? The first solution takes a little less space but I thought that declaring a variable and assigning it three lines after can be more error prone. I also like to see my if and else aligned, makes it easier for my brain to parse it!

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