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• What is the advantage of using constraints on C# Generics

  - by user313197

  Can someone tell me what the difference is between the following public class CarCollection:List where T:Car { } and public class CarCollection:List { } To me they seem to do the same thing, create type-safe collection of "Car" objects.

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• Is there any open source/freeware TSO/ISP clone for PC?

  - by mawg

  Free as in beer. I can live without the source code. About 10 years ago I saw a commercial product. Is there anything free now? I found Gispf on SourceFOrge, but there are no downloads. Otherwise I Can't find a thing. Edit: I'd prefer something approaching the whole system, but could manage to live with the editor Edit" TSI is "the old Time-Sharing Option on IBM mainframes"

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• access forms: forcing UCASE in a textbox

  - by every_answer_gets_a_point

  i would like to force the textbox to immediately change the text to UCASE as soon as the user moves away from the field. is this possible? the important thing is that this text will be used in a SQL query to update a table.

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• alternative to rescue in ruby ?

  - by wefwgeweg

  it seems like i have begin rescue end statements everywhere in my code. this doesn't seem like the correct thing to do. i am learning process, can anyone suggest how can i catch any exceptions without having to place everything inside begin,rescue, end. anyway to just tell ruby to shut up and just keep going even if exception is raised ?

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• Wordpress Widget Redirect Page

  - by Ajith

  I already created a wordpress widget for adding some featured from admin panel.I need to redirect to another page from this widget.But,when i am try to use header() method which shows a warning some thing like header already send by output....an do on.Is there any other method to redirect from wordpress widget?Please help me

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• what does this ADO OPEN Method do?

  - by every_answer_gets_a_point

  in plain english can you explain to me what happens here: rs.Open "batchinfo", oConn, adOpenKeyset, adLockOptimistic, adCmdTable what i need to do is to be able to insert values into a table called batchinfo. would this be the best way to do an OPEN? the only thing i would be doing is inserting values.

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• Is this possible to make as a option dialog in Java?

  - by Raptrex

  I'm wondering how I could make this into a popup dialog. I designed this with Netbeans gui editor. I looked at option dialog, but all the examples only had a textfield or a combobox, not more than one thing like I have. So what would be the best way to make this in Java.

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• What is the pythonic way to setattr() for a module?

  - by John Mulder

  In a class method, I can add attributes using the built-in function: setattr(self, "var_name", value). If I want to do the same thing within a module, I can do something like: globals()["var_name"] = value Is this the best way to do this, or is there a more pythonic solution?

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• Change the Target Framework for all my projects in a Visual Studio 2010 Solution to 3.5 (or 4.0)

  - by Ezombort

  This is kind of a continuation of this question. The thing is that I have to change all the projects target framework. I have many solutions with hundreds of projects. Anything new here or do I have to change every single project?

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• How to remove part of the string starting from special char (or word) in ActionScript?

  - by Ole Jak

  so I have a string "bla dla dla vre bla 54312" I want to turn it into "bla dla dla " by saying something like function(string, "vre"); how to do such thing?

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• Removing [nid:n] in nodereference autocomplete

  - by AK

  Using the autocomplete field for a cck nodereference always displays the node id as a cryptic bracketed extension: Page Title [nid:23] I understand that this ensures that selections are unique in case nodes have the same title, but obviously this is a nasty thing to expose to the user. Has anyone had any success in removing these brackets, or adding a different unique identifier?

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• Do Silverlight and AJAX play complementary roles or will one replace the other?

  - by davemackey

  AJAX is the big thing...but it seems (to me) that with Silverlight 4 Microsoft has offered a really robust method for creating UI interfaces for the web. I'm wondering - what is the future of AJAX? Do AJAX and Silverlight complement each other or will Silverlight replace AJAX, etc.?

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• What gems/plugins can be used for Unsubscribe support in Rails?

  - by user550575

  What gems/plugins that make it easy to add a tamper-resistant unsubscribe link to the bottom of the email a user can click to prevent receiving email those types of emails? The only thing I could find was http://kevinlochner.com/handling-unsubscribe-requests-in-ruby-on-rail which works but is somewhat unsophisticated and lacks features such as which type of emails to unsubscribe from. It also doesnt include the mechanism for users to unsubscribe. We using ActionMailer.

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• vb.net master page needs to save data in session after calling pages change

  - by ferrre

  i have 1 master page with 5 dropdownlists on it. The thing is, the master page has href's to aspx pages that use this master page as pagebehind. now lets save i am in page1.aspx with master1.master as pagebehind. If i select couple of dropdownlists, and then click on an href, the whole master page reloads. how do i catch this in session before postback?

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• Why are there two slashes - forward and backward?

  - by Passionate programmer

  I'm totally confused which one to use and when, first thing I do when something goes wrong in code with a slash is replace the one with other so my test cases double with one for / and one for \ .Help me to get the logic behind slashes.

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• What is the difference between these usages: new SubElement() and SubElement()?

  - by pocoa

  Into a class constructor, I need to create some objects on the fly and add them to a vector. Here is my code: ContainerClass::ContainerClass() { for (int i = 0; i < limit; i++) elements.push_back(SubElement()); } Is this the same thing with new SubElement()? Do I still need to free those SubElement() objects into the ContainerClass destructor?

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• jquery content slider with prev , next problem

  - by moustafa

  i am will kill my self from 7 days iam tring to find a good slider but i did not found any thing i want content slider working in <div> and i can add next and prov buttons in any place in the html i will kill my self please help me

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• Problem with echoing my array data in PHP

  - by ggfan

  I want to create an array of numbers: 10, 9,8...to 1. But when I echo $numbers, I get "Array" as the output as to the numbers. There is probably a simple thing I missed, can you please tell me. thanks! $numbers=array(); for ($i=10; $i>0; $i--){ array_push($numbers, $i); } echo $numbers;

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• converting timestamp to nanoseconds

  - by kuki

  I have a certain value of date and time say 28-3-2012(date) - 10:36:45(time) . I wish to convert this whole timestamp to nanoseconds with the precision of nanoseconds. As in the user would input the time and date as shown but internally i have to be accurate upto nanoseconds and convert the whole thing to nanoseconds to form a unique key assigned to a specific object created at that particular time. Could some one please help me with the same..

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• jquery quering the database

  - by mazhar

  the thing is that there are number of items in the html select list,what i want to do is to click on any of the item, then query the database on the id of that item. retrieve the value and then display that in the textbox, how would i query the database? I would really appreciate that if someone provides the code sample for querying the database

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• Access error in Windows 7

  - by Sathish

  I am working on a windows appliciation in which i create a folder at runtime and save some xml files in the folder.... Every thing works fine in Windows XP but when i run this in Widows 7 / Vista i get the error saying Access to the path is denied.. i am creating the folder in C:\Programfiles\MyApplication\ Please help me in resolving this

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• javascript htmlDivElement problem

  - by Fearghal

  Hi guys, I have a htmlDivElement (with no id) - and I'm trying to access and change the style of it.. Problem is everything I try returns 'Undefined' when i try to alert it Eg: alert (htmldivelementobject.className) I've also tried getAttribute but it returns the same thing... Where am I going wrong? F

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• Why are scrollbars appearing on my site on mobile devices?

  - by kcgolden

  I'm trying to make a small project site that's responsive using twitter-bootstrap and ember.js. It looks great on desktop and mostly scales to mobile devices except for one thing: x and y scrollbars appear on my android phone for the page. I don't know if this is the case on iPhone because I don't have one available at the moment. My site is here Can anyone see anything obvious in the inspector?

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• How to find if string contains letters and spaces (php)?

  - by Ole Jak

  So I need to get value false or true if string contains not only letters of all european and east alphabets and " "(space) and "-" minus. How to do such thing with some $a string?

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• What kind of data type is this?

  - by mystify

  In an class header I have seen something like this: enum { kAudioSessionProperty_PreferredHardwareSampleRate = 'hwsr', // Float64 kAudioSessionProperty_PreferredHardwareIOBufferDuration = 'iobd' // Float32 }; Now I wonder what data type such an kAudioSessionProperty_PreferredHardwareSampleRate actually is? I mean this looks like plain old C, but in Objective-C I would write @"hwsr" if I wanted to make it a string. I want to pass such an "constant" or "enum thing" as argument to an method.

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