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  • Asp.Net MVC ActionLink

    - by Pino
    Can anyone explain why the following happens? And how to resolve, Visual Studio 2010 and MVC2 <%= Html.ActionLink("Add New Option", "AddOption", "Product", new { @class = "lighbox" }, null)%> Results in /Product/AddOption?class=lightbox <%= Html.ActionLink("Add New Option", "AddOption", "Product", new { @class = "lighbox" })%> Results in /Product/AddOption?Length=7 Thanks

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  • Why must recursion be in a separate file in hugs?

    - by Casebash
    In Haskell in 5 steps the factorial function is defined as follows: let fac n = if n == 0 then 1 else n * fac (n-1) But for hugs, it says that fac needs to be in fac.h. Can anyone explain why this is the case - missing the ability to define recursion seems like a massive limitation for an interpreter.

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  • Is there a utility that can monitor open windows/ in .net winforms?

    - by Jules
    This is a general question, but I'll explain my specific need at the moment: I want to find the framework class that enables one to choose an image at design-time. I can find the editor that is used at run-time - its the Drawing.Design.ImageEditor. At design time, however, a different editor pops up which allows one to choose an image from resources. I'm guessing I could run some kind of program, then open up the image editor, from the property grid, and see what new windows/classes have been created? Thanks

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  • little oh notation as the limit of n goes to infinity

    - by Tony
    Hi all, I'm just trying to understand how in little o notation this is true: f(n)/g(n) as n goes to infinity = infinity? Can someone explain that to me? I do get the idea that f(n) = o(g(n)) means that f(n) grows no faster then cg(n) for all constants c 0. I just don't get the bit in bold above.

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  • Programming Related Songs

    - by Jim McKeeth
    One song per answer please! We have discussed music you listen to while coding, but I looking for music related to coding and coders. It can be eclectic or mainstream, and even a bit of a stretch (just explain the connection). Vote for your favorite song or add it if it isn't already here. Link to lyrics, band, music, video, etc., when possible.

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  • how get the date and time of the last modified particular TYPE file in that directory in c#

    - by Arunachalam
    how get the date and time of the last modified particular TYPE file in that directory let me explain with an example there are many files in directory say y:\tempfiles now i want to get the date and time of last modified file of txt format files like 9-03-2010 11.35 arun.reo 9-03-2010 11.31 arun1.reo 9-03-2010 11.31 arun.txt 9-03-2010 11.31 arun.avi now i want the out put as 9-03-2010 11.35 which is last modified file for reo type files .

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  • unknown error in shell

    - by lego69
    can somebody explain me what does this error mean: > ./rank lines.in 'nknown option: `- Usage: tcsh [ -bcdefilmnqstvVxX ] [ argument ... ]. this is my script rank: #! /bin/tcsh -f set line = `cat ${1}` echo $line I think that the problem I have is with first row #! /bin/tcsh -f I'm working on Windows! but after I wrote script on windows editor, I converted it using dos2unix rank, what can be the problem, thanks in advance for any help

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  • Python enumerate built-in error when using the start parameter

    - by TheJuice
    I'm modifying some code that calls enumerate on a list declared via a list comprehension e.g. self.groups = [Groups(self, idx) for idx in range(n_groups)] then later: for idx, group in enumerate(self.groups): # do some stuff but when I change the enumerate call to start at the 2nd list element via the start parameter e.g. for idx, group in enumerate(self.groups[1]): I get an exception: exceptions.TypeError: 'Group' object is not iterable Could someone explain why this is?

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  • subquery factoring questions.

    - by Sujee
    Hi, Please explain. a) is "subquery factoring" used to replace a non-correlated subquery? What about correlated subquery? b) if it is true, are "subquery" and "subquery factoring" executed exactly once? c) "subquery" vs "subquery factoring" which one is better Thank you.

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  • JSP/Servlet CRUD form with special input field based on join table relationship

    - by user1701467
    There's database with a bunch of tables that are joined with join tables. E.g. Members and Division are joined with MembersDivisions table. JSP/Servlet login functionality has been developed, but now the CRUD functionality needs to be implemented and I was unable to find any tutorials about it, especially involving the join table(when creating new division you can add members to it, or add more to the existing one). Maybe someone could, theoretically, explain how to do the Division part of the CRUD web form?

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  • [Toplink] How to add c3p0 or DBCP Connection pool?

    - by Jean N.T.
    Hello, Could you please explain to me how to add a standalone c3pO or DBCP connection pool to my toplink-based JPA project? I have a persistence.xml file, and everytime I want to query the database, I'm doing this: EntityManagerFactory emf = this.getEntityManagerFactory(); // Surely using persistence.xml to set up the factory EntityManager em = emf.createEntityManager(); ... Where do I build the bridge between my external connection pool manager and Toplink? Any ideas or links are welcomed. Regards, Jean

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  • PHP OOP question about reference

    - by Starmaster
    Can one please explain with example what does $obj-$a()-$b mean? I've used PHP OOP quite a long time and have seen in some places this structure and not just this $obj-$a(); In what cases should I use it? Thanks in advance!

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  • Explanation of this SQL sanitization code

    - by Derek
    I got this from for a login form tutorial: function clean($str) { $str = @trim($str); if(get_magic_quotes_gpc()) { $str = stripslashes($str); } return mysql_real_escape_string($str); } Could some one explain exactly what this does? I know that the 'clean' var is called up afterwards to sanitize the fields; I.e. $email = clean($_POST['email']);

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  • Bitwise Operations -- Arithmetic Operations..

    - by RBA
    Hi, Can you please explain the below lines, with some good examples. A left arithmetic shift by n is equivalent to multiplying by 2n (provided the value does not overflow), while a right arithmetic shift by n of a two's complement value is equivalent to dividing by 2n(2 to the power n) and rounding toward negative infinity. If the binary number is treated as ones' complement, then the same right-shift operation results in division by 2n and rounding toward zero. Thankx..

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  • Prolog instantiation error?

    - by KP65
    Hello guys, I'm stuck with some sort of error which i don't really understand in prolog. I get this error when calling a rule(which seems to work sometimes?) : error(instantiation_error,Var0) Can anyone explain to me what this means? Thanks

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