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• How to create a cell array of k similar objects in Matlab?

  - by Reed Richards

  I want to create an 1,k cell of m,m matrices. I have some trouble trying to initialize it. My first idea was to do this myCell = cell{1,K}; for k = 1:K myCell{1,k} = eye(m); end But it seems like such ugly way to initialize it. There have to be a better way?

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• How to create a named temporary file in memory?

  - by conradlee

  I would like to use Python's tempfile module to create a temporary file that I will use for communication between processes (use of pipes is awkward). The documentation I've linked to above shows two functions that almost do what I want: tempfile.NamedTemporaryFile # For creating named tempfiles tempfile.SpooledTemporaryFile # For creating tempfiles in memory but actually I want a tempfile that is both named AND in memory. Any ideas?

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• Is there a function in Go to print all the current member names and values of an object?

  - by fuentesjr

  I'm looking for something like PHP's print_r or python's dict. Anybody know if this function exists, or its something that needs to be implemented?

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• How to create a simple c# http monitor/blocker?

  - by Click Ok

  I was reading that question (http://stackoverflow.com/questions/226784/how-to-create-a-simple-proxy-in-c) that is near of my wishes. I simply want develop a c# app that, by example, monitors Firefox, IE, etc and logs all navigated pages. Depending of the visited page, I want to block the site (like a parental filter). Code snippets/samples are good, but if you can just tell me some direction of that classes to use I will be grateful. :-)

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• Git: after preparing a real merge commit, how to create a simple commit?

  - by mklhmnn

  After invoking git merge --no-commit <commit>, performing a commit will result in a merge commit with two (or more) parents. What command to invoke to create a simple commit instead (without having to re-perform the merge command with the --squash option)?

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• Can I create class properties during __new__ or __init__?

  - by 007brendan

  I want to do something like this. The _print_attr function is designed to be called lazily, so I don't want to evaluate it in the init and set the value to attr. I would like to make attr a property that computes _print_attr only when accessed: class Base(object): def __init__(self): for attr in self._edl_uniform_attrs: setattr(self, attr, property(lambda self: self._print_attr(attr))) def _print_attr(self, attr): print attr class Child(Base): _edl_uniform_attrs = ['foo', 'bar'] me = Child() me.foo me.bar #output: #"foo" #"bar"

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• Can we Made an anchor tag autoclick in the success function of Ajax Script?

  - by SAHIL SINGLA

  Can we Made an anchor tag autoclick in the success function of Ajax Script? Does it Possible we Click an anchor tag through Ajax Script? if Yes then how?I am using Ajax in asp.net MVC?

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• Recursive function MultiThreading to perform one task at a time.

  - by Ajay

  Hi, I am writing a program to crawl the websites. The crawl function is a recursive one and may consume more time to complete, So I used Multi Threading to perform the crawl for multiple websites. What exactly I need is, after completion crawling one website it call next one (which should be in Queqe) instead multiple websites crawling at a time. I am using C# and ASP.NET.

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• Is there a way to set a handler function for when a set of events has happened?

  - by allyourcode

  eg I have two concurrent AJAX requests, and I need the result from both to compute a third result. I'm using the Prototype library, so it might look something like this: var r1 = new Ajax.Request(url1, ...); var r2 = new Ajax.Request(url2, ...); function on_both_requests_complete(resp1, resp2) { ... } One way would be to use polling, but I'm thinking there must be a better way.

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• Retain a list of objects and pass it to the create/edit view when validation fails in ASP.NET MVC 2

  - by brainnovative

  I am binding a Foreign key property in my model. I am passing a list of possible values for that property in my model. The model looks something like this: public class UserModel { public bool Email { get; set; } public bool Name { get; set; } public RoleModel Role { get; set; } public IList<RoleModel> Roles { get; set; } } public class RoleModel { public string RoleName { get; set; } } This is what I have in the controller: public ActionResult Create() { IList<RoleModel> roles = RoleModel.FromArray(_userService.GetAllRoles()); UserModel model = new UserModel() { Roles = roles }; return View(model); } In the view I have: <div class="editor-label"> <%= Html.LabelFor(model => model.Role) %> </div> <div class="editor-field"> <%= Html.DropDownListFor(model => model.Role, new SelectList(Model.Roles, "RoleName", "RoleName", Model.Role))%> <%= Html.ValidationMessageFor(model => model.Role)%> </div> What do I need to do to get the list of roles back to my controller to pass it again to the view when validation fails. This is what I need: [HttpPost] public ActionResult Create(UserModel model) { if (ModelState.IsValid) { // insert logic here } //the validation fails so I pass the model again to the view for user to update data but model.Roles is null :( return View(model); } As written in the comments above I need to pass the model with the list of roles again to my view but model.Roles is null. Currently I ask the service again for the roles (model.Roles = RoleModel.FromArray(_userService.GetAllRoles());) but I don't want to add an extra overhead of getting the list from DB when I have already done that.. Anyone knows how to do it?

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• Jython: is there a clean way to implement a Java interfaces with function references?

  - by auramo

  I know that I can implement a Java interface with Jython like this: class MyListener (Listener): def foo(self, event): print(str(event)) Python has first-class functions so that seems like an overkill - especially for interfaces with one method. Is there a way to just pass a lambda or function which implements a single method in an interface instead?

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• How can I make the compiler create the default constructors in CPP?

  - by Itay Moav

  Is there a way to make the compiler create the default constructors even if I provide an explicit constructor of my own? As some times I find them very useful and find it a waste of time to write the copy constructor, especially for large classes.

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• Should I create private static final String = "Some exception message" or leave it inside the code?

  - by Artic

  Should I create private static final String = "Some exception message" or leave it inside the code? Is there any performance issues? I have a lot of exception cases. Texts are mostly different in any particular case. Wary about performance and memory issues

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• Can I stop Uri from unencoding a url in WebRequest.Create?

  - by Paul

  The code itself isn't complex, it's just not working properly: Uri uri = new Uri("https://www.google.com/webmasters/tools/feeds/sites/http%3A%2F%2Fwww.mydomain.co.uk%2F"); WebRequest.Create(uri); I get a "Bad Request" back from the server, and after much MUCH digging, discovered that the uri is being turned in to "https://www.google.com/webmasters/tools/feeds/sites/http%3A//www.mydomain.co.uk/" which is not what I asked for, and so it's having a whinge Is there a way to stop this?

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• How to create dynamic incrementing variable using "for" loop in php?

  - by Parth

  How to create dynamic incrementing variable using "for" loop in php? like wise: $track_1,$track_2,$track_3,$track_4..... so on....

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• Adding item to taxonomy menu vocabulary in the create content form?

  - by HorusKol

  I've implemented taxonomy menu in Drupal, and trying to set it up so that it is pretty easy for the user to add new items to the vocabulary from the create content form instead of having to administer the vocabulary itself. So far, all I can manage is the default behaviour of displaying the existing items.

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• How to create a System.Drawing.Color from its hexadecimal RGB string?

  - by Jader Dias

  I want to create a System.Drawing.Color from a value like #FF00FF or FF00FF without needing to write code for that. There is any .NET built-in parser for that?

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• If I create a transient property in the model, isn't this managed by core data then?

  - by mystify

  Just to grok this: If I had a transient property, lets say averagePrice, and I mark that as "transient" in the data modeler: This will not be persistet, and no column will be created in SQLite for that? And: If I make my own NSManagedObject subclass with an averagePrice property, does it make any sense to model that property in the xcdatamodel file? Would it make a difference if I would simply create a property in my subclass and not model that in the entity? (I think: yes, it doesn't matter at all ... but not sure)

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• Why am I unable to create a trigger using my SqlCommand?

  - by acidzombie24

  The line cmd.ExecuteNonQuery(); cmd.CommandText CREATE TRIGGER subscription_trig_0 ON subscription AFTER INSERT AS UPDATE user_data SET msg_count=msg_count+1 FROM user_data JOIN INSERTED ON user_data.id = INSERTED.recipient; The exception: Incorrect syntax near the keyword 'TRIGGER'. Then using VS 2010, connected to the very same file (a mdf file) I run the query above and I get a success message. WTF!

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• Eclipse: Should I create a workspace for each project ?

  - by Zombies

  I am simply wondering whether it is best to put all of my Eclipse projects into one workspace, or do a 1 workspace per 1 project. I am just a solo developer, for hobby more or less, but the apps I create do actually have production versions that are running on rather frequent cron jobs, so its almost like an amateur production environment. The only problems I have noticed so far is for exporting JARs, I have the potential to include source files from other projects which seems like it could get messy (maybe?).

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• Tips regarding how to create an Java Solitaire game.

  - by zo0mbie

  I got some question regarding the approach to create an solitaire game in java. What is the best way of handling the cards in Swing? How can I drag them, and what is the best way to snap them into their right positions?

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• Java API to create pdf with tables: any recommendations?

  - by jack

  I need to create a PDF containing some tables. When looking on google/stackoverflow the most frequent API seems to be iText but that's under the AGPL licence and thus not desirable for my purposes. I also frequently see apache pdfbox but that does not seem to have native support for tables (although a slightly hacky way was posted at Apache PDFBox Java library - Is there an API for creating tables? ) Does anyone have any recommendations?

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• How do you create a static class in C++?

  - by superjoe30

  How do you create a static class in C++? I should be able to do something like: cout << "bit 5 is " << BitParser::getBitAt(buffer, 5) << endl; Assuming I created the BitParser class. What would the BitParser class definition look like?

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• What is the simplest way (or simplest library) to create a truly secure php mail() function?

  - by Tchalvak

  The mail() function is bad, because it is so permissive with headers that you pretty much can't use it with any user input without subjecting yourself or others to spam. So what is the simplest substitute that can still ensure that it's use is secure? Ideally something that can be included in an external file.

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• TextMate can show definition of a function or a class easily?

  - by Jian Lin

  I am using TextMate on a Ruby on Rails project and wonder if you can put the mouse on link_to, and then press a key and it will show the definition of link_to, or does this for any other helper functions or Model definition? Or, click open a box and type in a function name and it will show you the definition?

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