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  • CSS precedence order? My lecture slides are correct or not?

    - by Michael Mao
    Hi all: I've noticed that there are a couple of similar questions and answers at SO already, but let me clarify my specific question here first: I've got lecture slides which states like this: To be frank, I haven't heard of this rule of css precedence myself, and I googled to find something with similar topic but not quite like that : here To have a test myself, I've made a test page on my own server here After running it on FireFox 3.6.3, I am sure it does not show the way as it should be, according to the statement in lecture slides: imported stylesheet ? am I doing it wrong? I cannot see its effect using FireBug it says that embedded stylesheet has a higher precedence over linked/imported stylesheets, however, it doesn't work, if I put the linked/imported tag AFTER that. inline style vs html attributes ? I've got an image where I firstly set its inline style to control the width and height, then use direct html attributes width/height to try modifying that, but failed... Below is the source code : <html> <head> <style type="text/css"> #target { border : 2px solid green; color : green; } </style> <link rel="stylesheet" href="./linked.css" type="text/css" media="screen" /> </head> <body> <div id="target">A targeted div tag on page.</div> <img src="cat.jpg" alt="" style="width : 102px; height : 110px;" width="204px" height="220px" /> </body> </html> Can any experienced CSS guys help me figure out if the slide is correct or not? Frankly speaking, I am puzzled myself, as I can clearly see some other "incorrect" statements here and there amongst the slides, such as JavaScript is on client-side (how about server-side JavaScript?) and "Embedded styles are in the head section of a web page "(what the heck? I am not allowed to put it inside the body tag?) Sorry about this silly question, the exam is on TOMORROW, and I now see a lot of things to think about :)

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  • Arguments for moving from LINQtoSQL to Nhibernate?

    - by sah302
    Backstory: Hi all, I just spent a lot of time reading many of the LINQ vs Nhibernate threads here and on other sites. I work in a small development team of 4 people and we don't even have really any super experienced developers. We work for a small company that has a lot of technical needs but not enough developers to implement them (and hiring more is out of the question right now). Typically our projects (which individually are fairly small) have been coded separately and weren't really layered in anyway, code wasn't re-used, no class libraries, and we just use the LINQtoSQL .dbml files for our pojects, we really don't even use objects but pass around values and stuff, the only time we use objects is when inserting to a database (heck not even querying since you don't need to assign it to a type and can just bind to gridview). Despite all this as I said our company has a lot of technical needs, no one could come to us for a year and we would have plenty of work to implement requested features. Well I have decided to change that a bit first by creating class libraries and actually adding layers to our applications. I am trying to meet these guys halfway by still using LINQtoSQL as the ORM yet and still use VB as the language. However I am finding it a b***h of a time dealing with so many thing in LINQtoSQL that I found easy in Nhibernate (automatic handling of the session, criteria creation easier than expression trees, generic an dynamic querying easier etc.) So... Question: How can I convince my lead developers and other senior programmers that switching to Nhibernate is a good thing? That being in control of our domain objects is a good thing? That being able to implement interfaces is a good? I've tried exlpaining the advantages of this before but it's not understood by them because they've never programmed in a true OO & layered way. Also one of the counter arguments to this I can see is sqlMetal generates those classes automatically and therefore it saves a lot of time. I can't really counter that other than saying spending more time on infrastructure to make it more scalable and flexible is good, but they can't see how. Again, I know the features and advantages (somewhat enough I believe) of each, but I need arguments applicable to my context, hence why I provided the context. I just am not a very good arguer I guess. (Caveat: For all the LINQtoSQL lovers, I may just not be super proficient as LINQ, but I find it very cumbersome that you are required to download some extra library for dynamic queries which don't by default support guid comparisons, and I also find the way of updating entitites to be cumbersome as well in terms of data context managing, so it could just be that I suck hehe.)

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  • ASP.NET MVC CookieTempDataProvider: any experience?

    - by Igor Brejc
    UPDATE: looks like I've misunderstood what TempData is for and what it isn't. It definitively shouldn't be used to "keep certain session-wide data" as I asked initially (see ASP.NET MVC TempData Is Really RedirectData why). I've modified the question accordingly. Has anyone used CookieTempDataProvider for TempData storage? Are there any caveats to watch out for (apart from keeping the session storage small)? Any issues with using it on Web farms?

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  • breakdown c++ code size

    - by Evan Rogers
    I'm looking for a nice stackoverflow-style answer to the first question in this old blog post, which I'll repeat below: "I’d really like some tool (ideally, g++ based) that shows me what parts of compiled/linked code are generated from what parts of C++ source code. For instance, to see whether a particular template is being instantiated for hundreds of different types (fixable via a template specialization) or whether code is being inlined excessively, or whether particular functions are larger than expected."

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  • other way to add item to List<>

    - by netmajor
    In my other question You can see code of my arr structure and PriorityQueue collection. I normally add items to this collection like that: arr.PriorityQueue.Add(new element((value(item, endPoint) + value(startPoint, item)),item)); I am curious that is other way to do this (add element(which is struct) object to List) ? In lambda way for example ? I just eager for knowledge :)

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  • Removing the transparency from image while keeping the actual image

    - by KPL
    Hello people, I have three images,and , they are not square or rectangular in shape. They are just like face of anyone. So, basically, my images are in the size 196x196 or anything like that, but complete square or rectangle with the face in the middle and transperant background in the rest of the portion. Now, I want to remove the transperant background too and just keep the faces. Don't know if this is possible and mind you, this isn't a programming question.

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  • How to set up my belongs_to and has_many reference

    - by dagda1
    Hi, I have an ExpenseType object that I have created with the following migration: class CreateExpenseTypes < ActiveRecord::Migration def self.up create_table :expense_types do |t| t.column :name, :string, :null => false t.timestamps end end I can see the table name is the pluralised expense_types. My question is, how do I reference this type in a belongs_to relationship? Is it: belongs_to :expensetype or is it belongs_to :expense_type I do not seem able to set it up correctly. Cheers

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  • Random loading swf files into main swf with countdown timer

    - by Plugger
    ok guys a question, can this be done or has it already been done, or can someone point me in the right direction (be aware i an a total newbie with action script) i have a main swf movie about 600px x 400 px what i want is this to run for say 30 seconds, then i want a countdown timer in the bottom corner for say 10 seconds, after this i want it to randomly load another swf file over the top of the original, and then the timer repeats for 10 seconds and repates the random loading of another swf file over the top etc, etc, etc so whats the best way around this

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  • Grabbing current URL and setting it to Textbox in the HTML frame using Google Chrome extension.

    - by devdreamers
    Hi all, Question says it all, dividing it into two parts: 1- Grabbing url when chrome extension is clicked, of current tab(on focus) - CHROME SPECIFIC. 2- Setting the same in a Textbox value, in one of frames of web page.Which means, the textbox resides in a.html where on webpage it's <frame src="a.html"> -CHROME/JAVASCRIPT/HTML specific. Please help, with either/both parts. Thanks so much.Appreciate it.

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  • SyntaxError: Parse Error only happens in safari

    - by Josh Crowder
    Im getting SyntaxError: Parse Error, only on safari. Here is the code in question. <script type="text/javascript"> // I am using transloadit a jquery plugin. which works on every other page and is loading fine on safari by the looks of it. The errors is on line 44 which is export: { Can anyone see anything wrong with that page?

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  • Which should be created first ER Diagram OR Class Diagram?

    - by isthatacode
    The very first step i created a DFD. Then i moved on to create a Class Diagram. And while doing that i felt that i should create the ER diagram first. As there were many details which could not be captured in a Class diagram. So, my question should i create ERD first OR Class Diagrams ? your valuable inputs are appreciated guys!!! thanks for reading

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  • How to set a key binding to make Emacs as transparent/opaque as I want?

    - by Vivi
    I want to have a command in Emacs to make it as opaque/transparent as I want (refer to the fabulous question that pointed out that transparency is possible in Emacs, and the EmacsWiki page linked there which has the code I am using below). The EmacsWiki code sets "C-c t" to toggle the previously set transparency on and off: ;;(set-frame-parameter (selected-frame) 'alpha '(<active> [<inactive>])) (set-frame-parameter (selected-frame) 'alpha '(85 50)) (add-to-list 'default-frame-alist '(alpha 85 50)) enter code here(eval-when-compile (require 'cl)) (defun toggle-transparency () (interactive) (if (/= (cadr (find 'alpha (frame-parameters nil) :key #'car)) 100) (set-frame-parameter nil 'alpha '(100 100)) (set-frame-parameter nil 'alpha '(85 60)))) (global-set-key (kbd "C-c t") 'toggle-transparency) What I would like to do is to be able to choose the % transparency when I am in Emacs. If possible, I would like a command where I type for example "C-c t N" (where N is the % opaqueness) for the active frame, and then "M-c t N" for the inactive window. If that can't be done like that, then maybe a command where if I type "C-c t" it asks me for the number which gives the opaqueness of the active window (and the same for the inactive window using "M-c t"). Thanks in advance for your time :) Below are just some comments that are not important to answer the question if you are not interested: I really want this because when I told my supervisor I was learning Emacs he said TexShop is much better and that I am using software from the 80's. I told him about the wonders of Emacs and he said TexShop has all of it and more. I matched everything he showed me except for the transparency (though he couldn't match the preview inside Emacs from preview-latex). I found the transparency thing by chance, and now I want to show him Emacs rules! I imagine this will be a piece of cake for some of you, and even though I could get it done if I spent enough time trying to learn lisp or reading around, I am not a programmer and I have only been using Emacs and a mac for a week. I am lost already as it is! So thanks in advance for your time and help - I will learn lisp eventually!

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  • update/validate embedded forms before saving in symfony

    - by Stanislav Palatnik
    I would like to validate an embedded form field before it gets saved in the database. Currently it will save an empty value into the database if the form field is empty. I'm allowing empty fields, but I want nothing inserted if the form field is empty. Also quick question, how to alter field values before validating/saving an embedded form field? $this-form-getObject works in the action, but $this-embeddedForm-getObject says object not found

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  • Hide list Sharepoint Temprarly Javascript

    - by lerac
    Back again with a javascript question within sharepoint. I would like to hide a list temporarly while my javascript code is running. So lets say I have a to do list. Hide the list I run my javascript code (doesn't matter what it is, so plz don't ask). Show the list I know how to do it with a calendarview but not listview yet: HIDE CALENDAR--$(".ms-cal-gempty").hide();

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  • Conditionals in WPF.

    - by Carlos
    I have the following question: I have a Boolean variable in a configuration file. If it is true I want a property in textbox control to be setup according to the value of that variable. Try the solution above but it does not work. What am I doing wrong? This is a fragment code: bool isKeyboardAvtive = true; //read from configuration file .... .....

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  • How to extract substrings with PHP

    - by shin
    PHP beginner's question. I need to keep image paths as following in the database for the admin backend. ../../../../assets/images/subfolder/myimage.jpg However I need image paths as follows for the front-end. assets/images/subfolder/myimage.jpg What is the best way to change this by PHP? I thought about substr(), but I am wondering if there is better ways. Thanks in advance.

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  • can i add FLVplayback to .fla file -- in adobe flash

    - by necker
    so the question is can i add the FLV playback to my .fla file and how? i am not able to add .fla as a source to the FLVPlayback once dragging it into my timeline. how can i add the ability to stop pause and play my animation? (its .fla file and i opened actionsctipt3). i would super appreciate any answers.

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  • How to get a list of installed android applications and pick one to run

    - by Jon
    I asked a similar question to this earlier this week but I'm still not understanding how to get a list of all installed applications and then pick one to run. I've tried: Intent intent = new Intent(ACTION_MAIN); intent.addCategory(CATEGORY_LAUNCHER); and this only shows application that are preinstalled or can run the ACTION_MAIN Intent type. I also know I can use PackageManager to get all the installed applications, but how do I use this to run a specific application? Thanks

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  • Is Pharo just a repackaging/rebranding of Squeak?

    - by number5
    I'm trying to learn some Smalltalk. Fisrt found was Squeak, but since it has been removed from Gentoo ebuild tree because of security problem, so I decided to find an alternative. Then I found Pharo through Seaside project, after I downloaded Pharo 1.0 package, there are actually a SqueakVM inside! So, my question is: Is Pharo just a repackaging/rebranding of Squeak? And are those security problem of Squeak (bundle unsecure libs) still applied to Pharo? Thanks!

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  • Best XML Parser for RSS Feeds in Objective C ?

    - by Ansari
    Hi all, I am going to develop an application which will parse the RSS feeds and display the items in my custom cell.(Cell containing the image, label, description, etc). The most popular way of parsing is using the NSXMLParser. But this is bit of a lengthy way. So is there any other way to do this. Or my question will be, which is the best xml parser for objective-c ?

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  • Accidental Complexity in OpenSSL HMAC functions

    - by Hassan Syed
    SSL Documentation Analaysis This question is pertaining the usage of the HMAC routines in OpenSSL. Since Openssl documentation is a tad on the weak side in certain areas, profiling has revealed that using the: unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len, const unsigned char *d, int n, unsigned char *md, unsigned int *md_len); From here, shows 40% of my library runtime is devoted to creating and taking down **HMAC_CTX's behind the scenes. There are also two additional function to create and destroy a HMAC_CTX explicetly: HMAC_CTX_init() initialises a HMAC_CTX before first use. It must be called. HMAC_CTX_cleanup() erases the key and other data from the HMAC_CTX and releases any associated resources. It must be called when an HMAC_CTX is no longer required. These two function calls are prefixed with: The following functions may be used if the message is not completely stored in memory My data fits entirely in memory, so I choose the HMAC function -- the one whose signature is shown above. The context, as described by the man page, is made use of by using the following two functions: HMAC_Update() can be called repeatedly with chunks of the message to be authenticated (len bytes at data). HMAC_Final() places the message authentication code in md, which must have space for the hash function output. The Scope of the Application My application generates a authentic (HMAC, which is also used a nonce), CBC-BF encrypted protocol buffer string. The code will be interfaced with various web-servers and frameworks Windows / Linux as OS, nginx, Apache and IIS as webservers and Python / .NET and C++ web-server filters. The description above should clarify that the library needs to be thread safe, and potentially have resumeable processing state -- i.e., lightweight threads sharing a OS thread (which might leave thread local memory out of the picture). The Question How do I get rid of the 40% overhead on each invocation in a (1) thread-safe / (2) resume-able state way ? (2) is optional since I have all of the source-data present in one go, and can make sure a digest is created in place without relinquishing control of the thread mid-digest-creation. So, (1) can probably be done using thread local memory -- but how do I resuse the CTX's ? does the HMAC_final() call make the CTX reusable ?. (2) optional: in this case I would have to create a pool of CTX's. (3) how does the HMAC function do this ? does it create a CTX in the scope of the function call and destroy it ? Psuedocode and commentary will be useful.

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