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• C# Get Keys from a Dictionary<string, Stream>

  - by alex

  Suppose I have a Dictionary like so: Dictionary<string, Stream> How can I get a list (or IEnumerable or whatever) of JUST the Keys from this dictionary? Is this possible? I could enumerate the dictionary, and extract the keys one by one, but I was hoping to avoid this. In my instance, the Dictionary contains a list of filenames (file1.doc, filex.bmp etc...) and the stream content of the file from another part of the application.

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• Flex 4: Component move event

  - by alexey

  I have a CustomTextInput component based on TextInput (Spark) component. The instance of this class is placed on a popup window (TitleWindow). How can I capture the popup move (dragging the title) event inside CustomTextInput implementation? MoveEvent.MOVE event of the CustomTextInput itself doesn't work. Of course, I can't access the parent popup window inside the component implementation, because it's a common component that can be used not only on the popup windows.

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• Can I enable/diable groups of breakpoints in C++ Builder?

  - by mawg

  The title says it all. One specific instance, I want to set a BP on every switch(msg) handled in WndProc() - but not until my app has initialized and is 'stable'. Of course, it receives a lot of windows messages when it starts up. I can't see a way to toggle a group of breakpoints, or to save them for later, use other BPs then restore the first set.

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• Properties of mbox message in mbox module in Python

  - by Rajasankar

  I trying my luck to manage my mailbox with python. My example code is for eachmail in mailbox.mbox(mboxfile): print eachmail['From'] I got following by printing entire content. Delivered-To Subject To Content-Type MIME-Version Message-Id Is there any full document showing what are all the properties I can get from the mbox message instance? Python docs doesn't specify any of these http://docs.python.org/library/mailbox.html#mailbox.mbox

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• Python: saving and loading a class definition

  - by Peterstone

  Hi! I am interested in saving and load objects using the pickle module as you can read in a question I asked before: Python: Errors saving and loading objects with pickle module Someone commment: 1, In an other way: the error is raise because pickle wanted to load an instance of the class Fruits and search for the class definition where it was defined, but it didn't find it so it raise the error Now I want to save and load a class definition in order to solve the problem I describe in the question mentioned before. Thank you so much!

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• how to implement single sign on for asp.net,mysql websites

  - by kranthi

  Hi, I am using mysql database for my asp.net website.I need to implement to single sign on for multiple instances of my website.Currently to check if a user has logged in I am using a user control which checks for a "loggedin" cookie with single instance of the website.Now I need to extend the logic to achieve single signon for multiple instances of the same site. Could someone please help. Thanks.

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• How to fix error in a Mercurial changeset comment?

  - by Sly

  Is there a way to rewrite the hg commit message if the wrong information was entered? We always include our Bug ID when we commit a changeset. For instance: hg commit -m "Bug 14585: LastName field should be mandatory" But If I put the wrong bug ID, is there a way (through an extension maybe) to fix the comment once the changeset has been committed (and possibly pushed)?

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• Can the same DLL data be shared by 2 different processes ?

  - by Jelly Amma

  I have two different C# applications that are running at the same time. I would like both of them to be able to access the same "instance" of a DLL (also in C#). The DLL holds some data that I'd like to return to whichever of the two applications is asking for it. My DLL is thread-safe so I was hoping this would be possible but I'm not sure how. Any help or advice would be much appreciated.

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• Is there some trick to override a class dynamically in PHP?

  - by user198729

  I have two class named test in two different files,a.php and b.php for instance,the logic is like this: include('a.php'); $a = new test(); if($somcondition_is_met) { include('b.php'); $b = new test(); } Is there some trick to avoid Fatal error: Cannot redeclare class ?

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• Counting the amount of letters in all permutations of words in R

  - by Rhodo

  I have some words: shapes<- c("Square", "Triangle","Octagon","Hexagon") I want to arrange them in pairs: shapescount<-combn(shapes, 2) shapescount [,1] [,2] [,3] [,4] [,5] [,6] [1,] "Square" "Square" "Square" "Triangle" "Triangle" "Octagon" [2,] "Triangle" "Octagon" "Hexagon" "Octagon" "Hexagon" "Hexagon" I want to count each of the groupings of the letters in the pairs, for instance first pair is "6" for "Square" and "8" for "Triangle" giving me "14" for the first pair, and so on.

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• django forms overwrite data when saved

  - by dana

  If a have a form, with the data from a user, let's say a CV, and i save the data from the form into a database, but i don't want that a CV from the same user to be stored in the database more than once(when edited form instance) I want it to be overwritten every time it is saved by one same user. How can i do it? thanks a lot

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• Why this cache doesn't work using final as modifier

  - by Pentium10

  I have this code to get the Cursor once for this instance, and the Log shows it is called many times although I marked as final. What I am missing? private Cursor getAllContactsCached() { final Cursor c=this.getList(); return c; } getAllContactsCached method should retrieve list once, and the 2nd time it should reuse the final object for return

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• Window properties - how are they implemented?

  - by Johann Gerell

  I'm curious if there is anyone around here that has inside information on the implementation details of window properties (SetProp, GetProp, etc.) in Windows. SetProp @ MSDN GetProp @ MSDN For instance, how are storage and lookups done?

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• Variable reference in a Groovy GString

  - by Maurits Rijk

  From the book "Groovy and Grails recipes" I'm using the following code snippet: String HelloLanguage = "def hello(language) {return \"Hello $language\"}" However, I get a compiler error "You attempted to reference a variable in the binding or an instance variable from a static context." because language can't be bound. What is wrong?

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• Binding In Binding with Templates(WPF)

  - by AKRamkumar

  I have a WPF UI Bound to a collection of AwesomeClass Now, AwesomeClass has a collection of AwesomeParts objects. How can I make my UI In such a way that (as an example) for each AwesomeClass instance, there is a Tab on a tab panel and then for each awesome part in that, there is an object on a listbox, on that tab. Basically: Awesomes-Tabs And Then : Awesome.Awesomeparts-Tabs.Listbox

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• How to subtract dates in YYYYMMDD format?

  - by NinjaBomb

  I have 2 integer fields that represent dates in the YYYYMMDD format. What is the best way to subtract 2 of these fields to get the correct # of days between them? For instance, if I take the difference between 20100511 and 20100428 I would like the result to be 13 and not 83. I know I need to convert the integer fields into date formats but everything I have tried either throws an exception or doesn't work correctly. What am I missing? Answers in vb.net please

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• Error when connecting to hello world yesod example on Windows 8

  - by reltone

  I start the executable (after building it with cabal) and it says "Application launched, listening on port 3000." Next I connect to it with my web browser and the console says "threadWaitRead requires -threaded on Windows, or use System.IO.hWaitForInput." The web browser never connects. Not sure what this is actually recommending I do to resolve the problem. {-# LANGUAGE TypeFamilies, QuasiQuotes, MultiParamTypeClasses, TemplateHaskell, OverloadedStrings #-} import Yesod data HelloWorld = HelloWorld mkYesod "HelloWorld" [parseRoutes| / HomeR GET |] instance Yesod HelloWorld getHomeR :: Handler RepHtml getHomeR = defaultLayout [whamlet|Hello World!|] main :: IO () main = warpDebug 3000 HelloWorld

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• Stateless singleton VS Static methods

  - by Sebastien Lorber

  Hey, Don't find any good answer to this simple question about helper/utils classes: Why would i create a singleton (stateless) rather than static methods? Why an object instance could be needed while the object has no state? Sometimes i really don't know what to use...

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• Why does every third party control set rewrite the basics of ASP.Net?

  - by Earlz

  Of the control sets I've seen for ASP.Net they all exhibit a strange property. They rewrite everything in the ASP.Net control set. For instance both DevExpress and Telerik have their own Panel, Label, and UpdatePanel controls among others. Why do vendors do this? Is it just to create a form of lock in or is it actually necessary?

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• How is location accuracy measured in Android?

  - by John Palmer

  Does anyone know the proper interpretation of the accuracy measurements returned by getAccuracy()? For instance, are they calculated as: Circular Error Probability (meaning, if i understand correctly, radius of a 50% confidence circle)? Radius of 95% confidence circle? something else? Many thanks for any advice you can give me.

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• Shopping Cart with multiple orders in ASP

  - by Joao Heleno

  I'm building an e-commerce website in ASP.Net/C# and I'm having some difficulties with my shopping cart... I want my costumers to be able to say "I want X boxes, and each box carries Y items". Let's say, for instance, my website sells flowers. A client logs in and then chooses X bouquets and then for each bouquet he adds flowers from the catalog. Can you point me out some links or tips in order to achieve this behaviour? Thanks

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• How to make Shell to allways be on top at runtime in SWT?

  - by parxier

  I'd like to implement "Always on top" configuration option in my application that takes effect immediately. I know that I can call Shell constructor with ON_TOP style. Is there a way to do that at runtime, that is after Shell instance has already been created?

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• Pointcut matching methods with annotated parameters

  - by Sinuhe

  I need to create an aspect with a pointcut matching a method if: - Is public - Its class is annotated with @Controller - One of its parameters (can have many) is annotated with @MyParamAnnotation. I think the first two conditions are easy, but I don't know if its possible to accomplish the third with Spring. If it is not, maybe I can change it into: - One of its parameters is an instance of type com.me.MyType (or implements some interface) Do you think it's possible to achieve this? And will performance be good? Thanks

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• Is there a way to force the JVM to run on a single processor or Core.

  - by richs

  In Java, is there a way to force a JVM instance to run on a single CPU/Core. Additionally is there a way for given thread to figure out what CPU it is running on?

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• Call panel.invalidate outside form class in C#

  - by Shaza

  Hey, I need to call "panel.invalidate" outside my form (WINform) class also I need to change some other controls as well, I read similar question here, and tried what they said, but it didn't work and I wasn't convinced at all. The answer I read was about exposing a public method like this: public void EnableButton(bool enable) { this.myButton.Enabled = enable; } Also I made a static instance in the other file static Form1 myForm = new Form1(); Any useful suggestions??

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