Search Results

Search found 10445 results on 418 pages for 'basic'.

Page 249/418 | < Previous Page | 245 246 247 248 249 250 251 252 253 254 255 256  | Next Page >

• Using Sessions in WCF Services called from Silverlight

  - by Torbjörn Josefsson

  (Using Visual Studio 2008, and Silverlight 3) -I've really looked around for this one, and now I'm just confused by all the solutions that simply won't work for me. I'm trying to call a WCF service from a Silverlight client, which is no problem, but I can't get the service to handle sessions (I want to remember a few things about the callee between calls) I've gathered that basicHttpBinding is no good for sessions, and I haven't managed to make wsHttpBinding work... what's the matter? I would have thought this was a pretty basic thing people would want in their WCF services, or am I just completely muddle-headed not to see how it can be done?

  Read the article

• Blackberry license screen agreement like Facebook

  - by Dachmt

  Hi, I have a "basic" license agreement screen for now, a Screen with a title set and vertical field containing a textfield, separatorfield and then 2 buttons (accept or decline). The license is pretty long, it's annoying going all the way down (except with the storm it's pretty easy) and I want a kind of popup screen showing the license and the 2 buttons at the bottom. To give you an example, the exact SAME as the Facebook or App World application's license screen agreement! When you scroll the text, it's going a lot faster and it's visualy great. Thank you!

  Read the article

• Using GWT to output XML, JSON and regular HTML

  - by Artem

  Sorry, this is a very basic question, as we are just getting started with exploring GWT. We would like to know if it's easy and possible to get GWT to "output" XML, JSON and regular HTML. I would like to know this because ideally we would port parts of our backends over slowly, and it would be nice to drop in GWT in place of AJAX wherever we need it during the transition period. Places that we would like to be able to use: 1) We have a pure XML page that we return to our client (mobile) app and right now this is handled through Spring MVC with a nice template. What's the best replacement for this? 2) We have a regular AJAX page that makes async requests and expects replies in JSON. Can we easily replace this backend? 3) We have some regular webpages where we use templates to output them, and we would like to first switch them over in the simplest possible way, without converting them to the regular GWT UI framework. Thanks!

  Read the article

• iphone refresh images UIImageView

  - by Rick

  I have a rather basic question. I have several(5) UIImageView images on my screen. When I click a button, I want to change each image to something else. I also want to play a sound as each image is changed. So I basically want a clicking sound as each image changes. The problem is, for some reason if I have say 5 images, the sound gets played 5 times first and then the images change. It's like the images only refresh when control goes back to the user for input. How can I "force" it to refresh the images as soon as i tell it what image to display? I'm new to the iphone/macworld, so go easy on me :-) Rick

  Read the article

• Where can I learn more about datastructure tricky questions?

  - by Sandbox

  I am relatively new to programming (around 1 year programming C#-winforms). Also, I come from a non CS background (no formal degree) Recently, while being interviewed for a job, I was asked about implementing a queue using a stack. I fumbled and wan't able to answer the question. After, the interview I could do it(had to spend some time). I have learnt (and think that I know it well) basic algorithms in datastructures using the book Data Structures: A Pseudocode Approach with C - Richard F. Gilberg (Author) . I want to know about sites/ books which have such questions along with answers. I think this will allow me to develop my CS specific problem solving skills. Any help is appreciated. BOUNTY: I am looking at some blog/website with datastructure and algorithms Q&A.

  Read the article

• iphone: Accessing Code for Elements Created in Interface Builder

  - by user362685

  I am attempting to create a basic tab-bar application using interface builder. I create a new project in Xcode selecting tab bar application. My question is how can I access the code that instantiates and pushes each of the views when the tab bar buttons are pressed? I would imagine that would be done by the tab bar controller, however when I write the class file from interface builder (filewrite class files), it just creates a blank generic TabBarController.h/TabBarController.m without the methods for pushing each of the views associated with the tab bar elements. I ask this because I would like to pass each view controller a reference to the data model when they are instantiated. Any help would be greatly appreciated, thanks.

  Read the article

• Posting Documentation onto a Joomla Site

  - by Chris Spicer

  I would like to create some documentation and post it onto my Joomla website. This documentation would be something along the lines of the MSDN documentation: i.e. each page would follow a basic template. Intuitively I feel I have two ways of achieving this: 1) Creating each page of documentation as a separate article, and then linking them up. 2) Creating some kind of template and filling the information from a database. The second option being preferable in the long run. Unforunately I have no idea how to achieve what I'm looking for. I hoped that there would be a component out there that woud help me, but Googling for 'Joomla Documentation' just brings up the documentation for Joomla itself. Has anyone out there put documentation on their site, and how did they achieve it?

  Read the article

• View controller/NIB architecture for non-navigation application with transitions?

  - by Ben

  I'm tinkering with an app that doesn't use the UINavigation root view control system, so I don't have natural ownership for each app "view". I essentially have two basic views, a document list view, and a document edit view. I'm playing with UIView animation for getting from a selected document to the edit view. I also have a toolbar that exists in both "views". Because I don't have UINavigation running the show for me, I have a tendency to just throw more and more stuff into one NIB and one view controller that owns the whole container. But now I'm trying to figure out how to segue from the document list view to the edit view if the edit view lives inside a different NIB, preserving the toolbar too. Anyone have thoughts or experience on app structures like this? I find the docs lacking on best practices around code/UI structure for anything except trivial one-screen apps or full-on navigation apps. Thanks!

  Read the article

• how to use expressons as function parameters in powershell

  - by rmeador

  This is a very simple task in every language I have ever used, but I can't seem to figure it out in PowerShell. An example of what I'm talking about in C: abs(x + y) The expression x + y is evaluated, and the result passed to abs as the parameter... how do I do that in PowerShell? The only way I have figured out so far is to create a temporary variable to store the result of the expression, and pass that. PowerShell seems to have very strange grammar and parsing rules that are constantly catching me by surprise, just like this situation. Does anyone know of documentation or a tutorial that explains the basic underlying theory of the language? I can't believe these are all special cases, there must be some rhyme or reason that no tutorial I have yet read explains. And yes, I've read this question, and all of those tutorials are awful. I've pretty much been relegated to learning from existing code.

  Read the article

• Bitwise operators versus .NET abstractions for bit manipulation in C# prespective

  - by Leron

  I'm trying to get basic skills in working with bits using C#.NET. I posted an example yesterday with a simple problem that needs bit manipulation which led me to the fact that there are two main approaches - using bitwise operators or using .NET abstractions such as BitArray (Please let me know if there are more build-in tools for working with bits other than BitArray in .NET and how to find more info for them if there are?). I understand that bitwise operators work faster but using BitArray is something much more easier for me, but one thing I really try to avoid is learning bad practices. Even though my personal preferences are for the .NET abstraction(s) I want to know which i actually better to learn and use in a real program. Thinking about it I'm tempted to think that .NET abstractions are not that bad at, after all there must be reason to be there and maybe being a beginner it's more natural to learn the abstraction and later on improve my skills with low level operations, but this is just random thoughts.

  Read the article

• Alternatives to ASCX User Control without a server-side form?

  - by Andrew Murray

  I've got an ASP.NET 3.5 Web Forms application in which a large chunk of code needs to be duplicated between a few different pages. Sounds like the ideal candidate for a user-control right? Problem is, this cannot be contained within a <form runat="server"> because it contains a client-side form of it's own. There are no runat=server controls or postbacks or anything that really need that webform - think of it just as a chunk of HTML with a few basic <% %> tags. I'd just want to set a property on the control when it's loaded, so that it knows what to output. This is purely an exercise to make the code easier to maintain. Before I resort to using an oldskool <!--#include-->, is there some better way of doing this?

  Read the article

• Getting pixel averages of a vector sitting atop a bitmap...

  - by user346511

  I'm currently involved in a hardware project where I am mapping triangular shaped LED to traditional bitmap images. I'd like to overlay a triangle vector onto an image and get the average pixel data within the bounds of that vector. However, I'm unfamiliar with the math needed to calculate this. Does anyone have an algorithm or a link that could send me in the right direction? (I tagged this as Python, which is preferred, but I'd be happy with the general algorithm!) I've created a basic image of what I'm trying to capture here: http://imgur.com/Isjip.gif

  Read the article

• Simply display RSS feed in/on aspx page

  - by Louis van Tonder

  Maybe I am being a n00b here, but for the life of me, I cant find a simple drop in type solution for displaying an rss feed inside an aspx page? I am looking for a simple solution, as when Firefox gets pointed to an rss feed, it just plainly displays it, no thrills, no fuss. I don't want to get into the xml and format it extensively. I just want a basic feed, will style it with font and a:styles. Thats it. Any ideas? EDIT: I am attempting to show a worpress "feed" inside an aspx page...

  Read the article

• Problem with displaying graphs on a Qt canvas

  - by Michal Nowotka

  Let's say I'm a Qt newbie. I want a good Qt library for displaying simple graphs. I've found the quanava library. But there is a problem. When I compiled a basic example it looks like graph edges are not painted properly when moving nodes. I don't have any idea where is a bug but this code seems to be rather simple. I think this is a problem with paint method in NodeItem class. Maybe someone has already solved this problem because this library is quite popular.

  Read the article

• dojo.gfx matrix transformation

  - by Linus

  Matrix transformations has got my head spinning. I've got a dojox.gfx.group which I want to be draggable with Mover and then be able to rotate it around a certain point on the surface. My basic code looks like this: this.m = dojox.gfx.matrix, . . . updateMatrix: function(){ var mtx = this.group._getRealMatrix(); var trans_m = this.m.translate(mtx.dx, mtx.dy); this.group.setTransform([this.m.rotateAt(this.rotation, 0, 0), trans_m]); } The rotation point is at (0,0) just to keep things simple. I don't seem to understand how the group is being rotated. Any reference to simplistic tutorial on matrix transformations would also help. The ones I've checked out haven't help too much.

  Read the article

• Is there a faster TList implementation ?

  - by dmauric.mp

  My application makes heavy use of TList, so I was wondering if there are any alternative implementations that are faster or optimized for particular use case. I know of RtlVCLOptimize.pas 2.77, which has optimized implementations of several TList methods. But I'd like to know if there is anything else out there. I also don't require it to be a TList descendant, I just need the TList functionality regardless of how it's implemented. It's entirely possible, given the rather basic functionality TList provides, that there is not much room for improvement, but would still like to verify that, hence this question.

  Read the article

• Drawing Sprites for iOS games on iPad

  - by TheGamingArt

  So, I'm quite new and confused on the way to tackle creating sprites/sprite sheets for iOS games. I own the full CS5 sweet and have been told that fireworks is the best way to go for creating these (although I don't have the slightest idea in how yet and would love some tutorials/books specifying sprite sheet creation). My thoughts directed me towards tablet drawing, as I am awful at drawing with a mouse and/or tablet without a screen on it (such as a basic wacom). I was thinking about getting an iPad, as this would provide me with an iPad for testing purposes and a tablet. Does anyone know if it's possible (or even a good idea) to draw out your sprites on the iPad. Is it possible to export them out into Fireworks and such?

  Read the article

• How can I use a single UIToolbar with multiple different UIViewControllers?

  - by Aeonaut

  I have a simple app with two basic screens, a UIMapView and a UITableView. I'd like to have a toolbar at the bottom with a couple of buttons and a UISegmentedControl with two segments: "Map" and "Table". (The layout is similar to the Google Maps app that ships with the iPhone.) How can I keep the same toolbar while presenting either the UIMapView (with a UIMapViewController) or the UITableView (with a UITableViewController) when the user switches back and forth on the segmented control? Of course, I can just create an identical toolbar for each of the two different views and display them separately, but is there a better way?

  Read the article

• Mvc Cocoa: How to get controller object for UIBarButtonItem target in view?

  - by plehoux

  I got a basic application where I want the action method of UIBarButtonItem to be in the parent controller. My view has been created programmatically, so I can't use IBAction. RootViewController - NavigationViewController - NavigationView - UIBarButtonItem Here's how have done it for the moment, it works for now... but it's not a really scalable technic (in NavigationView.m): BookAppDelegate *delegate = [[UIApplication sharedApplication] delegate]; UIBarButtonItem *soundEffects = [[UIBarButtonItem alloc] initWithTitle:@"Sound Effects" style:UIBarButtonItemStyleBordered target:[delegate.rootViewController navigationViewController] action:@selector(soundEffectsClicked:)]; What would be a better technic to get the NavigationViewController object?

  Read the article

• Running The JVM From Within An MXML Component

  - by Joshua

  Thinking outside of the box here... What possible basic approaches could be taken in an effort to create a Flex component that could run Java? I know I can easily use flex to browse to or launch a Java app, but there are things I can only do if I can run the Java from WITHIN an MXML Component. I the strictest sense, I know it's not impossible (ie: if you had all the source code for flex and for the jvm), but what's the least impractical means to this end? Showcase your creativity.

  Read the article

• correct way to store an exception in a variable

  - by Evan Teran

  I have an API which internally has some exceptions for error reporting. The basic structure is that it has a root exception object which inherits from std::exception, then it will throw some subclass of that. Since catching an exception thrown in one library and catching it in another can lead to undefined behavior (at least Qt complains about it and disallows it in many contexts). I would like to wrap the library calls in functions which will return a status code, and if an exception occurred, a copy of the exception object. What is the best way to store an exception (with it's polymorphic behavior) for later use? I believe that the c++0x futures API makes use of something like this. So what is the best approach? The best I can think of is to have a clone() method in each exception class which will return a pointer to an exception of the same type. But that's not very generic and doesn't deal with standard exceptions at all. Any thoughts?

  Read the article

• get last 5 character vb.net

  - by Chocho

  i want to get the last 5 digits/strings from a strings of words. eg: "I will be going to school in 2011!" i am using visual studio.net 2008 and using vb.net. i will like to get "2011!" note, my strings changes, and the last 5 characters can be anything! any ideas. i know visual basic have Right(string, 5); this didn't work for me gave me an error. thanks

  Read the article

• Reading web-service information from assembly app.config file

  - by Benjamin Ortuzar

  I have a plugin architecture solution written in .NET C# 3.5, where each plug-in is an assembly loaded by the main project. Each plug-in connects to a different web-service, so I would like to have the configuration of that plugin in its own plugin.dll.config file instead of having it in the app.config of the main project. I have been looking around and I saw that i could load from each class its own config file: // Get the application configuration file. System.Configuration.Configuration config = ConfigurationManager.OpenMappedExeConfiguration(fileMap,userLevel) I see how that would help me get the basic settings from the appSettings section, but I cant see a way to read the web-service information stored in the plugin.dll.config file. Any help on how to approach this situation is very welcome.

  Read the article

• Should I use implicit conversions to enforce preconditions?

  - by Malvolio

  It occurs to me that I could use use implicit conversions to both announce and enforce preconditions. Consider this: object NonNegativeDouble { implicit def int2nnd(d : Double) : NonNegativeDouble = new NonNegativeDouble(d) implicit def nnd2int(d : NonNegativeDouble) : Double = d.v def sqrt(n : NonNegativeDouble) : NonNegativeDouble = scala.math.sqrt(n) } class NonNegativeDouble(val v : Double ) { if (v < 0) { throw new IllegalArgumentException("negative value") } } object Test { def t1 = { val d : Double = NonNegativeDouble.sqrt(3.0); printf("%f\n", d); val n : Double = NonNegativeDouble.sqrt(-3.0); } } Ignore for the moment the actual vacuity of the example: my point is, the subclass NonNegativeDouble expresses the notion that a function only takes a subset of the entire range of the class's values. First is this: A good idea, a bad idea, or an obvious idea everybody else already knows about Second, this would be most useful with basic types, like Int and String. Those classes are final, of course, so is there a good way to not only use the restricted type in functions (that's what the second implicit is for) but also delegate to all methods on the underlying value (short of hand-implementing every delegation)?

  Read the article

• How to set different colors to the bars in stacked bar chart in ireport ?

  - by Purushotham

  Hi, I need to set a unique color to each bar in the stacked bar chart. Whatever the color I see in one bar it shouldn't be repeated in any other bar or any other stack. For example: I have 5 bars in the report. Each bar has 3 different stacks. I want to apply a red related colors to the first bar and its stacks. Second bar should have blue related colors. etc.. It is showed in the attached image. The image shows a very basic requirement what we want. Just created using a normal ms paint. Stacked Bar MS Paint Image

  Read the article

< Previous Page | 245 246 247 248 249 250 251 252 253 254 255 256  | Next Page >