Search Results

Search found 33445 results on 1338 pages for 'single instance storage'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 608/1338 | < Previous Page | 604 605 606 607 608 609 610 611 612 613 614 615  | Next Page >

  • Using Constants in Perl

    - by David W.
    I am trying to define constants in Perl using the use Constant pragma: use Constant { FOO => "bar", BAR => "foo" }; I'm running into a bit of trouble, and hoping there's a standard way of handling it. First of all... I am defining a hook script for Subversion. To make things simple, I want to have a single file where the class (package) I'm using is in the same file as my actual script. Most of this package will have constants involved in it: print "This is my program"; package "MyClass"; use constant { FOO => "bar" }; sub new { yaddah, yaddah, yaddah. I would like my constant FOO to be accessible to my main program. I would like to do this without having to refer to it as MyClass::FOO. Normally, when the package is a separate file, I could do this in my main program: use MyClass qw(FOO); but, since my class and program are a single file, I can't do that. What would be the best way for my main program to be able to access my constants defined in my class? The second issue... I would like to use the constant values as hash keys: $myHash{FOO} = "bar"; The problem is that %myHash has the literal string FOO as the key and not the value of the constant. This causes problems when I do things like this: if (defined($myHash{FOO})) { print "Key " . FOO . " does exist!\n"; } I could force the context: if (defined("" . FOO . "")) { I could add parentheses: if (defined(FOO())) { Or, I could use a temporary variable: my $foo = FOO; if (defined($foo)) { None of these are really nice ways of handling this issue. So, what is the best way? Is there one way I'm missing? By the way, I don't want to use Readonly::Scalar because it is 1). slow, and 2). not part of the standard Perl package. I want to define my hook not to require additional Perl packages and to be as simple as possible to work.

    Read the article

  • I Can Not Use Session In Page _Load And I Got Bellow Error

    - by LostLord
    hi my dear friends .... why i got this error : (Object reference not set to an instance of an object.) when i put this code in my page_load.: protected void Page_Load(object sender, EventArgs e) { BackEndUtils.OverallLoader(); string Teststr = Session["Co_ID"].ToString(); } ========================================================================== this session is made when user logins to my web site and this session works in other areas... thanks for your attention

    Read the article

  • HierarchicalDataTemplate Distinct leaves

    - by miguel
    I have a set of data that is structured like this: ItemA.GroupA ItemB.GroupA ItemC.GroupB ItemD.GroupC I need to present the data in a WPF Tree View like this: GroupA --- ItemA --- ItemB GroupB --- ItemC GroupC --- ItemD What XAML can I use to group the leaves by distinct value? For instance, there could be multple items in the collection which are GroupA.ItemA, however, I only want to present the node and leaf once.

    Read the article

  • Construct a Netflix Affiliate URL to a search result page?

    - by Felix
    I have a Netflix Affiliate account, but I don't want to direct users to the homepage for them to create an account, I want to direct them to a search result page. The reason for this is that on our site we have lots of titles but they can't be reliably linked to a single Netflix result programmatically, so we would prefer if we could direct users to a search page, and if the user signs up, get the revenue. Is this possible? I find the whole Netflix-Affiliate-but-Google-Affiliate scheme a bit daunting.

    Read the article

  • Build specific module in multi-module project

    - by Roman
    Hi I have a multi-module project. I thought I can compile only a single module from that multi module project by that line : mvn -amd -pl "module-name" Seems not to work , this command builds only the specific module. Its dependencies are not compiled yet so it fails. Any ideas how to solve that ? Thanks

    Read the article

  • does the object creating a sub appdomain get instantiated in that sub appdomain?

    - by Eric
    does the object creating a sub appdomain get instantiated in that sub appdomain? I have an object that is in the main AppDomain and it is creating another AppDomain and it requires the calling class to be serializable and is creating an instance of the calling class in the new sub AppDomain. I'm wondering if that is how it is, or if there is a way that I can create the sub appDomain but still hold on to the original instantiation of the calling object in the main appDomain

    Read the article

  • How can I use linq to initialize an array of repeated elements?

    - by Eric
    At present, I'm using something like this to build a list of 10 objects: myList = (from _ in Enumerable.Range(0, 9) select new MyObject {...}).toList() This is based off my python background, where I'd write: myList = [MyObject(...) for _ in range(10)] Note that I want my list to contain 10 instances of my object, not the same instance 10 times. Is this still a sensible way to do things in C#? Is there a cost to doing it this way over a simple for loop?

    Read the article

  • Is it bad to have multiple return statements?

    - by scot
    Hi, I have a code somethg like below: int method(string a ,int b , int c){ if(cond1) return -1; if(cond2 || cond3) return 3; if(cond1 && cond2) return 0; else return -999; } Does it perform badly when compared to having multiple if else and have single return?

    Read the article

  • Use database field maxlength as html layout input maxlength best practice. asp.net mvc

    - by Andrew Florko
    Hello everybody, There are string length limitations in database structure (email is declared as nvarchar[30] for instance) There are lots of html forms that has input textbox fields that should be limited in length for that reason. What is the best practice to synchronize database fields and html layout input fields length limitations ? Can it be done automatically (html layout input fields declared the same max length as database data they represent)? Thank you in advance.

    Read the article

  • Synthesized property of a protocol not seeing superclass' ivar

    - by hyn
    I have a situation where my subclass is not seeing the superclass' instance variable x. The ivar is obviously @protected by default, so why do I get a compiler error "x undeclared"? - (CGSize)hitSize { // Compiler error return size; } EDIT: hitSize is a property of a protocol my subclass is conforming to. The problem was that I had hitSize @synthesized, which was the culprit. The question then is why can't the synthesized getter see the ivar?

    Read the article

  • memory usage by objects in common lisp

    - by Farzad Bekran
    Is there a way to find out how much memory is used by an instance of a class or basic data types in general? I have a toy webframework in cl that creates and manages web pages with instances of classes that represent the html tags and their properties, and as they are supposed to make an html page, they have children in a slot called children. so I was thinking how much a user's session will cost the server if I take this approach. Thanks.

    Read the article

  • Indent or comment several text lines with VI

    - by Werner
    Hi, can vim or vim be used to comment or indent at the same time a number of lines? For instance: for item in Lista: ind = int(floor(1.0*(item-lmin)/width)) if ind==nintervals: ind=ind-1 print item,ind comment it to: #for item in Lista: #ind = int(floor(1.0*(item-lmin)/width)) #if ind==nintervals: #ind=ind-1 #print item,ind or indent it to: for item in Lista: ind = int(floor(1.0*(item-lmin)/width)) if ind==nintervals: ind=ind-1 print item,ind Thanks P.D. Is relevant the difference between VI and VIM?

    Read the article

  • How can I compose a WCF contract out of multiple interfaces?

    - by mafutrct
    I've got multiple interfaces. All of them should be inherited and exposed by a single contract interface. interface A { void X(); } interface B { void Y(); } interface C: A, B {} // this is the public contract How is this possible? I can't add ServiceContract to A and B because that would lead to multiple endpoints. And I don't want to new-override every method in C.

    Read the article

  • How to add a jar build by a project to the project in eclipse?

    - by Xetius
    I have a project which as part of the build process creates an XMLBeans jar file (stbSchemas.jar) which I want to include and reference in this project. Is this the best way to go about this (Single project) or should I have a child project which is built from the parent project? I am building this using Maven2 inside Eclipse. Is there a better way to do this so that I can maintain the integrity of the projects and stability of the builds.

    Read the article

  • Finding An image tag using the alt text

    - by MrJackV
    I would like to know if it was possible using Javascript to find an image tag by its alt text. For instance I have this tag: <img src="Myimage.jpg" alt="Myimage"> would there be a vay to abtain the tag by looking for the "Myimage" alt attribute?

    Read the article

  • Variable assignment in bash

    - by Werner
    Hi, this is probably a very stupid question; in a bash script, given the output of, for instance; awk '{print $7}' temp it gives 0.54546 I would like to give this to a variable, so I tried: read ENE <<< $(awk '{print $7}' temp) but I get Syntax error: redirection unexpected Could you tell me why, and what is the easiest way to do this assignment? Thanks

    Read the article

  • retriving python objects ...python newbie

    - by gizgok
    I have a Club class and Player Class.The player class has an attribute Fav.clubs which will have unique club values.So the user is suppose to enter various club names.Based on the club names I have to retrieve those club objects and establish the relationship that this particular player has this Fav.clubs.The attribute Fav.clubs in Player class should store the names of Club .Now what I have to do is,take input from user about fav.clubs.This will be a list.After that traverse each element in the list and acc to string name find the corresponding club object and then store that object instance in Player class.

    Read the article

  • interactive lua: command line arguments

    - by mr calendar
    I wish to do lua prog.lua arg1 arg2 from the command line Inside prog.lua, I want to say, for instance print (arg1, arg2, '\n') Lua doesn't seem to have argv[1] etc and the methods I've seen for dealing with command line arguments seem to be immature and / or cumbersome. Am I missing something?

    Read the article

  • How to set the correct Visual Studio version as JIT debugger?

    - by Lothar
    I have VS2003, VS2005 and VS2008 installed on my machine. The C++ application is compiled with VS2005 but when it crashs and i select debug the Just-In-Time Debugging dialog comes up and only offers me "New instance of Visual Studio .NET 2003". Debugging a 2005 compiled program with 2003 is not possible. If i attach the process to VS2005 then it works well, but this is very inconvenient. How do i set .NET 2005 vor JIT debugging?

    Read the article

  • Dynamically creating objects at runtime that inherit from a base class

    - by Homeliss
    I am writing a game editor, and have a lot of different "tool" objects. They all inherit from BTool and have the same constructor. I would like to dynamically populate a toolbox at runtime with buttons that correspond to these tools, and when clicked have them create an instance of that tool and set it as the current tool. Is this possible, and if so will it be better/easier than creating those buttons by hand?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 604 605 606 607 608 609 610 611 612 613 614 615  | Next Page >