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• How to pass values between asp.net pages with gridviews

  - by iva123

  Hi, I enabled the selection on my gridview. The question is, I can pass values with buttons but it seems redundan, because I have selection linkbuttons. So how can I pass variables with them ?

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• What is the best method to remove duplicate image files from your computer

  - by BioGeek

  I have a lot of duplicate image files on my Windows computer, in different subfolders and with different filenames. What Python script or freeware program would you recommend for removing the duplictes? (I've read this similar question, but the poster there is asking about visual duplicates with differing filesizes. Mine are exact duplicates with different filenames.)

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• Is it possible to transfer files via ZModem over USB?

  - by Karl Perry

  And especially are there .NET libraries available for the purpose? Two hours of Google searches have turned up nothing so I'm not optimistic, but ... The big question: is it even possible to use ZModem over USB? TIA.

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• AJAX in Rails - doing simple looping to update information when available

  - by Acidburn2k

  I am trying to get put out a simple site, which would pool the database every few seconds and update the information on the page dynamicly, when theres something new inserted. I am farily new to ruby, but I understand the whole concept of RJS, link_to_function and soforth. The question is, what is the best way how to implement some kind of simple loop, which would run after the page is loaded and update the DOM if there is something new to display. Thanks in advance for any tips!

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• Testing in Scrum

  - by alex

  In Scrum it's a good idea to test frequently when iteration is finished at customer. But the question is what kind of test should I use when some of the prototype is done with customer? In my knowledge Acceptance test is ok when all the iteration is done - but not some part of it. Examples for the test plan would be helpful

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• What is the best way to flag some elements in MATLAB? using NaN or Inf? or something else?

  - by Kamran Bigdely Shamloo

  As you may know, in many occasions, there is a need to flag some elements of a matrix. For example when we have weighted adjacency matrix, and our graph is not fully connected, we have to flag some elements to show that there is no edge between those nodes. The question is how to do that? Is it better to put NaN or Inf on that elements in the matrix? or something elese(such as -1)?

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• c# bound Datagridview

  - by Jin

  I have a datagridview and it is bound to a stored procedure which returns a number of result columns. There is also a binding navigator with "Add New" button included. If I click "Add New" button, it creates a new row in datagridview automatically, and If I leave that new row by clicking a different row. datagridview invokes "commit" or something. so the question is How do I make datagridview not to commit adding a new row when I leave the cell?

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• Can I install Netbeans while I already installed jdk.1.6.xx on same machine?

  - by newLearner.java

  Hi, I just about to learn Java programming. I already have jdk on my computer. Then, I found this Netbeans is quite popular and come with all I needs. My question is, will there be any conflict if I install full version of Netbeans while I already have jdk installed on same machine(windows vista)? I will appreciate your answers and advices, thanks.

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• php regex - can't find the error

  - by peirix

  Just one simple, specific question: I've got the string {var1}12345{var2}, and I want to get the variable names used. if (preg_match("/{([a-zA-Z0-9]*)}/g", $url, $matches)) { print_r($matches); } If I remove the global flag, it works, but I only get the first variable, as expected. Why isn't it working with a global flag? It works when I'm testing it with the Regex Tester

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• spring security filter-chain regex pattern

  - by lewap

  In my application which uses spring security I want to define two different areas both using their own spring security filter-chain. My question is: is it possible to define two regex expressions as follows: every path starting with /foobar/* every other path not starting with /foobar The important part here is that the second path should also match if somewhere within it, but not in the beginning, it cotains the /foobar/ string. Thanks

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• What do you use to write Go

  - by LantisGaius

  I know its a bit too early, but I've been trying out Go (Google's Programming Language) and its kindof annoying to write code in gedit. So, my question: What do you use to experiment with Go?

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• Is there any way to reboot and execute the VFD without ghost client?

  - by Ankiov Spetsnaz

  I don't know if this is the appropriate place for me to ask this question, since it's more for system maintenance, but I'm having difficult time finding any answers on Google. but is there any way to reboot and execute VFD, virtual floppy disk, without ghost client??

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• Design Patterns: What is a type

  - by contactmatt

  A very basic question, but after reading the "Design Patterns: Elements of reusable OO Software" book, I'm a little confused. The book states, "An object's type only refers to its interface-the set of request to which it can respond. An object can have many types, and objects of different classes can have the same type." Could someone please better explain what a Type is? I also don't understand how one object can have multiple types...unless the book is speaking of polymorphism....

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• Controlling QR Code Scanning Actions

  - by Elijah

  I am looking to create a QR code that does the following: When scanned from inside an application, it dislpays a custom alert, (Ex. "You won $5") When scanned with a different QR code reader (non app) it goes to a mobile web page that directs the user to download the application. My main question is: Can you control what happens when a QR code is scanned by a reader that is not your own? (A 'default' action, if you will)

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• How to bind the Command property of the ItemTemplate CheckBox to ViewModel object's property?

  - by 123Developer

  Let me ask this question with a pseudo code: Where "Contacts" the ViewModel object set as the DataContext for the window. "Contacts" has "PersonCollection" , public ICommand PersonSelectedCommand properties. "PersonCollection" is List "Person" has Name, Age properties Currently this is not working as CheckBox is trying to find and bind the ICommand "PersonSelectedCommand" property of object "person", which does not exists! How will bind the CheckBox to the ICommand "PersonSelectedCommand" property of object "Contact" Thanks and regards 123Deveopler

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• Is there any performance difference between a SQL "IN" statement versus using "OR"?

  - by Mark Kadlec

  Thought I would ask the knowledgeable StackOverflow community a question that was on my mind today and I can't seem to find an answer. Is there any performance difference or advantage between an "IN" or using "OR"? Ie. Is SELECT type FROM types WHERE typecat IN ('abc', 'def') better than SELECT type FROM types WHERE typecat = 'abc' OR typecat = 'def'

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• Where should configuration be placed?

  - by James P.

  I have an application structured as follows: dao domain main services utils I've made a class that reads the application configuration from an XML file. The question is where should it be placed? In the utilities package?

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• Call trace in Android

  - by DenMark

  I want to know how to do method tracing for Android applications. I mean, a sequence of calls on each object, not a stack trace. It's very similar to this question (Call trace in java), but on different platforms (jvm-PC vs dvm-Android). I have no control over the start arguments of dalvik, thus I cannot specify a java agent (or am I wrong here?). Is there another way to do method tracing? Thanks!

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• Does anyone know what happens if you do not implement iequtalable when using generic collections?

  - by ChloeRadshaw

  I asked a question here : http://stackoverflow.com/questions/2476793/when-to-use-iequatable-and-why about using Iequatable. From the msdn: The IEquatable(T) interface is used by generic collection objects such as Dictionary(TKey, TValue), List(T), and LinkedList(T) when testing for equality in such methods as Contains, IndexOf, LastIndexOf, and Remove. If you dont implement that interface what exactly happens?? Exception / default object equals / ref equals?

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• How-To handle AutoExpiring Shopping Carts

  - by Yoann. B

  Hi, I'm currently developping a online shopping store and the question of expiring carts comes. Should i use event based self timed cart entity, or should i make kind of polling task to cleanup old empty carts ? Thanks

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• How to get visible size of DisplayObject with perspective projection

  - by Ain

  The following is entirely a math question. As we know, PerspectiveProjection delivers perspective transformations in 3D represented by the interdependent values of fieldOfView and focalLength according to the following formula: focalLength = stageWidth/2 * (cos(fieldOfView/2) / sin(fieldOfView/2) Bjørn Gunnar Staal has prepared a good image to illustrate the situation. Q: How to get the visible on-screen size of the DisplayObject (Cube on the above-linked image) to which PerspectiveProjection has been applied?

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• Python named print?

  - by Mark

  I know it's a really simple question, but I have no idea how to google it. how can I do print '<a href="%s">%s</a>' % (my_url) So that my_url is used twice? I assume I have to "name" the %s and then use a dict in the params, but I'm not sure of the proper syntax? just FYI, I'm aware I can just use my_url twice in the params, but that's not the point :)

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• Cannot have a qualifier in the select list while performing a JOIN w/ USING keyword.

  - by JuiceBerry123

  I am looking at a practice test that doesn't have explanations about the correct answers. The question I'm confused about basically asks why the following SQL statement can never work: SELECT oi.order_id, product_jd, order_date FROM order_items oi JOIN orders o USING(order_id); The answer it gave was: "The statement would not execute because the column part of the USING clause cannot have a qualifier in the SELECT list" Can someone elaborate on this? I am pretty stumped.

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• asp.net path problem when deploying

  - by Daok

  We have moved a lot of images and javascript file that was inside class to external Javascript file. In development (Debug inside Visual Studio), everything look nice, all images show, all javascript works and all CSS display perfectly. When we do a package and install everything with IIS all images from Javascript or CSS doesn't display and. Question is : Since we cannot use the tilde (~) in javascript or in CSS what is the way to display those resources?

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• Implementation of GNU Scientific Library?

  - by anon

  Does anyone know a collection of articles or books that describes the implementation of the GNU Scientific Library? This question is not about using the GSL; it's about how the GSL is implemented, their design decisions / tradeoffs. Thanks!

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