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• How does Linq-to-Xml convert objects to strings?

  - by Eamon Nerbonne

  Linq-to-Xml contains lots of methods that allow you to add arbitrary objects to an xml tree. These objects are converted to strings by some means, but I can't seem to find the specification of how this occurs. The conversion I'm referring to is mentioned (but not specified) in MSDN. I happen to need this for javascript interop, but that doesn't much matter to the question. Linq to Xml isn't just calling .ToString(). Firstly, it'll accept null elements, and secondly, it's doing things no .ToString() implementation does: For example: new XElement("elem",true).ToString() == "<elem>true</elem>" //but... true.ToString() == "True" //IIRC, this is culture invariant, but in any case... true.ToString(CultureInfo.InvariantCulture) == "True" Other basic data types are similarly specially treated. So, does anybody know what it's doing and where that's described?

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• Targetting DataTemplate for only on certain views

  - by huseyint

  I have a DataTemplate inside a global/shared ResourceDictionary like this which targets a DataType: <DataTemplate DataType="{x:Type foo:Bar}"> <!-- My DataTemplate visual tree goes here... --> </DataTemplate> This DataTemplate replaces my all foo:Bar types on all my Views (UserControls/Windows). What I want to do is to apply this template to only certain views, keeping the other views are not affected by this DataTemplate. I can copy this DataTemplate to Resources sections of each of these view, but I don't want to copy/paste the contents of the DataTemplate which would result in maintenance headaches.

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• Sharepoint - Navigation.QuickLaunch has missing items

  - by linqmonkey

  The following code generates an ASCII art tree view of a sharepoint site structure based on the items in the quick launch menu. But some are missing. From googling i've found suggestions that this may be because QuickLaunch only contains items that have been customised. Any idea how to fix this? I want to use the QuickLaunch items as many of the sites have subsites and pages that need to be displayed in a specific order. RecurseNavigation(SPWeb web) { depth++; foreach (SPNavigationNode node in web.Navigation.QuickLaunch) { Console.Write(new String('-', depth)); Console.WriteLine(node.Title + " ("+node.Url+")"); RecurseNavigation(root.OpenWeb(node.Url)); } depth--; }

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• Finding the FORM that an element belongs to in JavaScript

  - by Magnus Smith

  How can I find out which FORM an HTML element is contained within, using a simple/small bit of JavaScript? In the example below, if I have already got hold of the SPAN called 'message', how can I easily get to the FORM element? <form name="whatever"> <div> <span id="message"></span> </div> </form> The SPAN might be nested within other tables or DIVs, but it seems too long-winded to iterate around .parentElement and work my way up the tree. Is there a simpler and shorter way? If it wasn't a SPAN, but an INPUT element, would that be easier? Do they have a property which points back to the containing FORM? Google says no...

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• Overriding a function in Emacs Lisp

  - by scrapdog

  I would like to temporarily override the kill-new function. I have a way I want to reimplement kill-new that works in only in certain contexts, but I don't want to reimplement a special version of kill-region on top of that. (kill-new is called from kill-region) Since Emacs Lisp uses dynamic scoping, this should be possible, right? (On the other hand, it seems that this would be an unsafe thing to support, and it might make me a bit nervous knowing that it is possible...) I have experimented with using let and fset, but so far have found no way to get it to work as expected. So, hopefully someone can fill in the blank in the following pseudocode: (defun my-kill-new (string &optional replace yank-handler) (message "in my-kill-new!")) (defun foo () (some-form-that-binds-a-function (kill-new my-kill-new) (kill-region (point) (mark)))) What should some-form-that-binds-a-function be? Or am I barking up the wrong tree?

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• IVR-style dialog system

  - by unbeli

  I need to build a dialog system similar to IVR used in call centers. My system is not phone-based, but the dialog is similar. Something like System: "Main menu: Enter [1] for menu1, [2] for menu2" User: [1] System: "menu1: enter [1] for apples, [2] for oranges, [3] for main menu" User: [7] System: "What??" System: "menu1: enter [1] for apples, [2] for oranges, [3] for main menu" User: [2] ... and so on I want to have a nice declarative description of all the possible options and a nice way to run through that tree, guided by user input. Already considered: ANTLR-generated lexer/parser (seems to be an overkill), SCXML-based state machine (seems like only transitions can be declared, the rest needs to be coded)

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• Route all requests through PageController except existing controllers (Zend Framework)

  - by ChrisRamakers

  For a new CMS i've developed a Pages module that allows me to manage the site's tree structure. Each page is reachable from the url http://www.example.com/pageslug/ where pageslug identifies the page being called. What I want to achieve now is a route that allows me to route all incoming requests to a single PagesController unless it's a request to an existing controller (like images for example). It's easy enough to catch all requests to the Pages Controller but how to exclude existing controllers? This is my module bootstrap. How can i achieve this in the most preferrable way <?php class Default_Bootstrap extends Zend_Application_Module_Bootstrap { protected function _initRoute() { $this->bootstrap('frontController'); /* @var $frontcontroller Zend_Controller_Front */ $frontcontroller = $this->getResource('frontController'); $router = $frontcontroller->getRouter(); $router->addRoute( 'all', new Zend_Controller_Router_Route('*', array('controller' => 'pages', 'action' => 'view') ) ); } }

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• trigger jquery click

  - by dio

  Hello everyone, I use jquery to build treeview via ajax which has refreshed automatically every 5 second. And I want after building the tree, one of the branches to be selected automatically. But when I use $('#treeview li span.Running').click(); nothing happen. I catch the click event using $('#treeview li span').live('click',function(){ .... }); I try with jQuery instead of $ and it was unsuccessful. Thank you in advance. BR.

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• Counting number of children in hierarchical SQL data

  - by moontear

  for a simple data structure such as so: ID parentID Text Price 1 Root 2 1 Flowers 3 1 Electro 4 2 Rose 10 5 2 Violet 5 6 4 Red Rose 12 7 3 Television 100 8 3 Radio 70 9 8 Webradio 90 For reference, the hierarchy tree looks like this: ID Text Price 1 Root |2 Flowers |-4 Rose 10 | |-6 Red Rose 12 |-5 Violet 5 |3 Electro |-7 Television 100 |-8 Radio 70 |-9 Webradio 90 I'd like to count the number of children per level. So I would get a new column "NoOfChildren" like so: ID parentID Text Price NoOfChildren 1 Root 8 2 1 Flowers 3 3 1 Electro 3 4 2 Rose 10 1 5 2 Violet 5 0 6 4 Red Rose 12 0 7 3 Television 100 0 8 3 Radio 70 1 9 8 Webradio 90 0 I read a few things about hierarchical data, but I somehow get stuck on the multiple inner joins on the parentIDs. Maybe someone could help me out here. moon

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• best way to parse plain text file with a nested information structure

  - by Beffa

  The text file has hundreds of these entries (format is MT940 bank statement) {1:F01AHHBCH110XXX0000000000}{2:I940X N2}{3:{108:XBS/091502}}{4: :20:XBS/091202/0001 :25:5887/507004-50 :28C:140/1 :60F:C0914CHF7789, :61:0912021202D36,80NTRFNONREF//0887-1202-29-941 04392579-0 LUTHY + xxx, ZUR :86:6034?60LUTHY + xxxx, ZUR vom 01.12.09 um 16:28 Karten-Nr. 2232 2579-0 :62F:C091202CHF52,2 :64:C091302CHF52,2 -} This should go into an Array of Hashes like [{"1"=>"F01AHHBCH110XXX0000000000"}, "2"=>"I940X N2", 3 => {108=>"XBS/091502"} etc. } ] I tried it with tree top, but it seemed not to be the right way, because it's more for something you want to do calculations on, and I just want the information. grammar Mt940 rule document part1:string spaces [:|/] spaces part2:document { def eval(env={}) return part1.eval, part2.eval end } / string / '{' spaces document spaces '}' spaces { def eval(env={}) return [document.eval] end } end end I also tried with a regular expression matches = str.scan(/\A[{]?([0-9]+)[:]?([^}]*)[}]?\Z/i) but it's difficult with recursion ... How can I solve this problem?

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• authlogic auto_register feature using my options

  - by holden

  I have auto registration working with authlogic using gaizka's version of authlogic_openid which I found on Github since pelle's original addition of the feature seemed to cause issues. http://github.com/gaizka/authlogic%5Fopenid http://stackoverflow.com/questions/1476953/using-authlogic-to-auto-create-users-bypassing-explicit-user-registeration This one works fine however when using the auto_register feature it ignores my options for authlogic such as retrieving the email from the openid provider... any ideas what I'm doing wrong? Hhere's the example: http://big-glow-mama.heroku.com/ http://github.com/holden/authlogic_openid_selector_example/tree/with-facebook/ You can see the difference if you register vs. login... #user.rb class User < ActiveRecord::Base acts_as_authentic do |c| c.validate_login_field = false # optional, but if a user registers by openid, he should at least share his email-address with the app c.validate_email_field = false # fetch email by ax c.openid_required_fields = [:email,"http://axschema.org/contact/email"] #c.required_fields = ["http://axschema.org/contact/email"] # fetch email by sreg #c.optional_fields = ["email"] end #private method to deal with emails goes here end #UserSession.rb class UserSession < Authlogic::Session::Base auto_register logout_on_timeout true end

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• Mouse interaction in ListBoxItem children (WPF)

  - by absence

  I have a ListBox with an ItemTemplate that contains a control that interacts with the mouse. This interfers with the selection functionality of the ListBox, i.e. clicking a control does not select the item. This is because ListBoxItem sets the Handled property of the mouse event to true in OnMouseLeftButtonDown. I tried the following protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e) { base.OnMouseLeftButtonDown(e); e.Handled = false; } but the ListBoxItem “takes over” the mouse and prevents the control from doing its own interaction. Then I had another idea protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e) { base.OnMouseLeftButtonDown(e); ((ListBoxItem)VisualTreeHelper.GetParent(VisualTreeHelper.GetParent(VisualTreeHelper.GetParent(this)))).IsSelected = true; } which actually works, but feels more like an ugly kludge than an elegant solution. Are there any better solutions that don't rely on the exact contents of the visual tree?

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• Move million records from MEMORY table to MYISAM table.

  - by Prashant

  Hi, I am looking for a fast way to move records from a MEMORY table to MYISAM table. MEMORY table has around 0.5 million records. Both tables have exactly the same structure (same number of columns, data types etc.). But the MYISAM table is indexed (B-TREE) on a few columns. There are around 25 columns most of which are unsigned integers. I have already tried using "INSERT INTO SELECT * FROM " query. But is there any faster way to do this? Appreciate your help. Prashant

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• Embed Javascript Module within Flex application

  - by Crimson

  I have a large module written in JS which uses Canvas to draw and animate trees. This module was written for a product which is now being migrated to flex. Is there a way in flex to embed this JS module as is? Or would I have to rewrite the whole module in AS3 (shudder)? Further, if embedding is possible, would user interactions (mouse clicks) etc. work seamlessly? An example of the tree structure I am talking about can be found here - http://thejit.org

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• Plz Help! How to maintain status of gridview checkbox

  - by Royson

  Hi, On my form on left side i have tree-view with check-boxes and on right side grid-view with check-box column. Treeview shows all folders. if user clicked on treenode their files all displayed in gridview. If user checked some files and selects another node and return back it should display checked files as it is. How do i maintain grid-view checked-box column status..? One more query If i checked specific node it should checked all rows of a gridview.

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• shell script fun! how to perform an action on each subdirectory from a given path??

  - by pocketfullofcheese

  I am writing a shell script (which I suck at) and I need some help. Its a script that is moving things from git to CVS (not important). The thing is, i a file path: controllers/listbuilder/setup/SubmissionRolesListbuilderHandler.inc.php and I need to be able to do: cvs add controllers; cvs add controllers/listbuilder; cvs add controllers/listbuilder/setup; cvs add controllers/listbuilder/setup/SubmissionRolesListbuilderHandler.inc.php Can someone help me out? The best I've come up with so far is to recursively add ALL files in my working tree, but that seems overly inefficient.

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• How do I allow inline images with data urls on .NET 4 without triggering request validation?

  - by Johan Driessen

  I'm using the jQuery jstree plugin (http://jstree.com) in a ASP.NET MVC 2 project on .NET 4 RC. It comes with some stylesheets with inline images with data urls, like this: .tree-checkbox ul { background-image:url(data:image/gif;base64,R0lGODlhAgACAIAAAB4dGf///yH5BAEAAAEALAAAAAACAAIAAAICRF4AOw==); } Now, the url for the background image contains a colon, which .NET 4 thinks is an unsafe character, so I get this error message: A potentially dangerous Request.Path value was detected from the client (:). According to the documentation, I am supposed to be able to prevent this by adding <pages validateRequest="false" /> to my Web.config, but that doesn't seem to help. I have tried adding it to the main Web.config for the application, as well as to a special Web.config in the /config folder, but to no avail. Is there any way to get .NET to allow this?

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• Programatically Create Controller in Rails

  - by Trey Bean

  What's the best way to dynamically create a controller in Rails. I've got a class that needs to generate a bunch of controller that inherit from it. I could just create a bunch of files in /app/controllers, but they'd all be basically empty files. There's got to be a way to generate these classes dynamically and have them treated like other controllers in Rails, e.g. reloaded correctly in dev mode. I tried putting this in a config/initializer: FL.contact_types.each do |contact_type| controller_name = "#{contact_type.pluralize}Controller" Object.const_set(controller_name.to_sym, Class.new(ContactsController)) unless Object.const_defined?(controller_name.to_sym) end This worked, but I run into the dependency/reload problem and get “A copy of AuthenticatedSystem has been removed from the module tree but is still active” since the ContactsController inherits from ApplicationController which includes AuthenticatedSystem. Is creating a bunch of empty files really the best solution?

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• Manual hunk editing in git interactive mode

  - by kRON

  In manual hunk edit mode, the docs say this: # To remove '-' lines, make them ' ' lines (context). # To remove '+' lines, delete them. # Lines starting with # will be removed. What I don't understand is how to remove '-' lines. Say if I had had this bit of code: Alfa Bejta And I've edited it in my working tree to: Alpha Beta The diff is: - Alfa - Bejta + Alpha + Beta How do I edit the hunk to only commit the modifications to the first line? I've tried these: - Alfa Bejta + Alpha - Alfa + Alpha Bejta to no avail.

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• Subversion roadmap

  - by gbjbaanb

  Recently there was a post to the subversion dev mailing list suggesting a vision and roadmap for the future of Subversion. As a result, I'm posting this to elicit some suggestions and contributions from the users of Subversion. Any comments are welcome, and I shall feedback a synopsis with a link to this question to the dev mailing list. On the post, several ideas were suggested as being "very nice to have" and are offered as the starting point of a future roadmap. These are: Obliterate Shelve/Checkpoint Repository-dictated Configuration Rename Tracking Improved Merging Improved Tree Conflict Handling Enterprise Authentication Mechanisms Forward History Searching Log Message Templates So given all the above, what features in subversion, or missing from subversion, do you think could be improved or added?

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• Git: delete files in a branch, what happens when a merge takes place

  - by Josh

  I'm relatively new to source control (at least complex source control). If I'm developing a set of features in a branch, and I happen to delete some cruft out of the source tree in this branch, what happens when I merge? Are the files properly deleted in the trunk/master? Is there anything I should avoid doing that is typically problematic when developing in a branch? This is a 2-3 developer system, so we're not talking about massive changes to source. I'm told you should pull from the trunk often to avoid tangled manual merge situations, and this makes sense. Thanks, Josh

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• rails: include statement with two ON conditions

  - by Markus

  Hi, I have tree tables books bookmarks users where there is a n to m relation from books to users trough bookmarks. Im looking for a query, where I get all the books of a certain user including the bookmarks. If no bookmarks are there, there should be a null included... my sql statement looks like: SELECT * FROM `books` LEFT OUTER JOIN `bookmarks ` ON bookmarks.book_id = books.id AND bookmarks.user_id = ? In rails I only know the :include statement, but how can I add the second bookmarks.user_id = ? statement in the ON section of this query? if I put it in the :conditions part, no null results would get returned! Thanks! Markus

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• setup.py install dependency too?

  - by Jason Sundram

  I have a python source distribution, and it depends on some other modules that I've also made. The directory tree looks like this. I've written a setup.py file for one of those modules (pydirac225, for those of you who are following along at home), and I want to have that setup.py called from the main setup.py? Another module dependency (pysoundtouch14) has a setup.py file, but the contents of it are basically pasted into the main setup.py script. It seems more modular to allow each of these components to specify how they are set up, and allow the main setup file to invoke their setup scripts individually. Is there a standard way to deal with this issue? To recap: I have some code that depends on other modules: should the other module's setup code go in the main setup.py, or is there a way to have my code's setup.py invoke their setup.py files?

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• Installing JavaFX 2.0 in Eclipse Juno for Mac

  - by Josh

  I'm running Mac OS X 10.6.x (Snow Leopard) right now, so I'm pretty sure that there could be some issues with supported systems, but I'm trying to install JavaFX 2.0 (or 2.1.x) in Eclipse Juno for Java EE (version 3.8). I have already installed the e(fx)clipse plugin, but I'm not sure if I'm downloading the right JavaFX .zip file from the Oracle website. I downloaded the JavaFX 2.2 beta release because it seemed to be the only release available for OS X, but I could be wrong. Once I download this archive, I'm not exactly what to do with it/where to place it so that Eclipse recognizes it as the JavaFX 2.2 SDK. I know that I have to go into preferences and set the location of the SDK file, but there doesn't seem to be any selectable .jar file or folder to set it to. Am I doing something wrong here? Any help is appreciated. Edit: I worked around the issue by setting the SDK location to the location of the downloaded JavaFX 2.2 SDK in the JavaFX section in the preferences tree.

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• Confusion on using django socialauth

  - by Fedor

  http://github.com/uswaretech/Django-Socialauth/tree/master/socialauth/ I'm a bit confused on how I should use this. Of course, I read the notes at the bottom but I'm a Django novice so I'll need a little hand holding. The structure of this looks like a project structure since it contains a urls.py but I'm also aware that applications can also have that. It also has a manage.py which leads me to believe it's a project ( plus the subdirectories ). So should I just be integrating portions of this into my existing project? This isn't an application, right? The README also mentions grabbing API Keys. So if I want a standard interface where you click on a google/yahoo logo and it forwards itself via Javascript to the authentication page where you login if you already aren't logged in, kicks you back to your own page, would I need API keys? Any other special tips are appreciated.

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