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• Build a custom drawn control for .net compact framework

  - by Hinek

  I just started on the .net compact framework. I want to draw a Sudoku field on the screen. So I put down a PictureBox and defined a method for the Paint event: private void pictureBoxPlayfield_Paint(object sender, PaintEventArgs e) { // use e.Graphics to draw the grid, numbers and cursor } This works, but you can see as the grid is drawn. So my question is, what is the right/better way to create such a custom control? Is there maybe a way to enable double buffering?

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• Serialize ASP.NET Web Service HTTP POST request results

  - by nigative

  I am trying to serialize my webmethod output (rename XML element with results), So far [return: System.Xml.Serialization.SoapElementAttribute("results")] before method declaration works fine with soap requests, but I am looking for something that would work the same way with HTTP POST/GET requests as well (right now I get return class name as element name)

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• Get column name in jpa

  - by German

  Hi all, I have a query factory that takes a column name as an attribute in order to search for that column. Right now I'm passing the name of the column as a string, so it's kind of hardcoded. If the name of the column changes in the entity's annotation, that "hidden dependency" breaks up. Is there a way in jpa to retrieve the real name of the column and have it available at compile time, so I can use it in queries?

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• Missing Test Settings template in VS2010 Ultimate

  - by JustLoren

  I'm attempting to add a Test Settings file to my Unit Tests project in VS2010. All websites seem to simply say "Go to Add New Item Installed Templates Test Settings". However, I don't have Test Settings as an option in my Installed Templates (nor does searching for them online turn up any results). Can someone point me in the right direction for what I need to do?

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• Help me to find a better approach-Design Pattern

  - by DJay

  I am working on an ASP.Net web application in which several WCF services are being used. At client level, I am creating channel factory mechanism to invoke service operations. Right now, I have created an assembly having classes used for channel factory creation code for every service. As per my assumption this is some sort of facade pattern. Please help me to find a better approach or any design pattern, which I can use here.

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• Is it possible to write vertically in a textview in android?

  - by Sephy

  LEts say you have a normal textview, with "Stackoverflow" written in it, I would like to know if it it possible to rotate the textview about -90°, to have the S at the bottom and the W at the top of the screen? of course, i could write my text in an image, rotate it and use it that way, but im interested in text right now. thank you

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• Custom Visual Studio 2008 Designer

  - by Mick

  How do I create a custom Visual Studio 2008 UI designer for a C# file? For example, when you double click on a DataSet in the Solution Explorer, a UI screen appears that allows you to edit the DataSet, even though it is defined in XML/code (which you can right click and "View Code"). Usually this code is separated from user code in some way, either by region ("Windows Forms Designer Generated Code"), by codegen (".g.cs" for WPF XAML files), or some other means like partial classes.

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• How to get service instance's endpoint uri?

  - by Hoblaa

  Hi I'm working on a wcf service and I have the need for it to figure out it's own endpoint address (pref. in the constructor). Is this possible and if so, could anyone point me to the right direction? The service is hosted on IIS. Thanks.

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• Naming guidelines with C#.

  - by VansFannel

  Hello! I have this class: class DoSomething { private int timesDone; ... } Which is the right way to named variable 'timesDone'? Sometimes I see named as m_timesDone. Is this correct? Where I can find information about naming guidelines? Thank you!

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• Django admin - remove field if editing an object

  - by John McCollum

  I have a model which is accessible through the Django admin area, something like the following: # model class Foo(models.Model): field_a = models.CharField(max_length=100) field_b = models.CharField(max_length=100) # admin.py class FooAdmin(admin.ModelAdmin): pass Let's say that I want to show field_a and field_b if the user is adding an object, but only field_a if the user is editing an object. Is there a simple way to do this, perhaps using the fields attribute? If if comes to it, I could hack a JavaScript solution, but it doesn't feel right to do that at all!

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• Python style: if statements vs. boolean evaluation

  - by mkscrg

  One of the ideas of Python's design philosophy is "There should be one ... obvious way to do it." (PEP 20), but that can't always be true. I'm specifically referring to (simple) if statements versus boolean evaluation. Consider the following: if words: self.words = words else: self.words = {} versus self.words = words or {} With such a simple situation, which is preferable, stylistically speaking? With more complicated situations one would choose the if statement for readability, right?

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• How to filter SVN changes in Hudson's POLL SCM?

  - by Koert

  We're using Hudson on an SVN repository that hosts a number of projects. One of these projects takes a long time to build, even if no files were changed. Right now Hudson's "Poll SVN" detects that the subversion repository has changed and will try to build the project, even if that change was in a different project. Is there a way to set up "Poll SCM" to only respond to changes in a certain branch?

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• UITableViewCell similar to one in "Things" app

  - by Fiedorowski

  Hi im looking (but cant find) for sample app that will show me how to implement UITableView with custom UITableViewCell that is similar to one in the Things app, with smooth animation from read-only view (that hides empty cells) to editable view that shows only cells that can be edited, and custom cell with multiline input with small image. I would appreciate if someone could point me in the right direction. Im new to Cocoa/Objective-C programming but Im familiar with Object Oriented programing concepts.

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• How can I take any function as input for my Scala wrapper method?

  - by pr1001

  Let's say I want to make a little wrapper along the lines of: def wrapper(f: (Any) => Any): Any = { println("Executing now") val res = f println("Execution finished") res } wrapper { println("2") } Does this make sense? My wrapper method is obviously wrong, but I think the spirit of what I want to do is possible. Am I right in thinking so? If so, what's the solution? Thanks!

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• VS2010 Database Compare. How do you create a *.DBSchema extensioned file?

  - by George

  I'd like to take a snapshot of my database, make some changes and then use the db compare functionality to identify the changes, and who knows, maybe even generate scripts to make the change. I'd like to avoid having to backup the current db and restore it as a separate db just to have a "before" snapshot. I'm guessing I shouldn't have to. Obsviously, I'm clueless about db projects and am looking to be pointed in the right direction. ty!

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• Rails model without database

  - by FlipFlop

  I want to create a Rails (2.1 and 2.2) model with ActiveRecord validations, but without a database table. What is the most widely used approach? I've found some plugins that claim to offer this functionality, but many of them don't appear to be widely used or maintained. What does the community recommend I do? Right now I am leaning toward coming up with my own solution based on this blog post.

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• Get values from *.resx files in XAML

  - by nihi_l_ist

  Is it possible to add some value from resource file right into the XAML markup? Or for localization we always have to make something like this in *.cs file: txtMessage.Text = Messages.WarningUserMessage; Where Messages is resource, and txtMessage is TextBlock.

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• Which one has a faster runtime performance: WPF or Winforms?

  - by Joan Venge

  I know WPF is more complex an flexible so could be thought to do more calculations. But since the rendering is done on the GPU, wouldn't it be faster than Winforms for the same application (functionally and visually)? I mean when you are not running any games or heavy 3d rendering, the GPU isn't doing heavy work, right? Whereas the CPU is always busy. Is this a valid assumption or is the GPU utilization of WPF a very minor operation in its pipeline?

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• PHP's form bracket trick is to Django's ___?

  - by Matt

  In PHP you can create form elements with names like: category[1] category[2] or even category[junk] category[test] When the form is posted, category is automatically turned into a nice dictionary like: category[1] => "the input value", category[2] => "the other input value" Is there a way to do that in Django? request.POST.getlist isn't quite right, because it simply returns a list, not a dictionary. I need the keys too.

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• GDB disas question about address values

  - by user324994

  I'm working with a binary file that I disas'd in gdb. Right now I'm just examining the return value of a function. 0x08048604 <playGame+78>: ret Is the address shown the address where ret is stored in the function? Or is it just the address of the instruction to return the ret value?

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• How to dock an application in the Windows desktop?

  - by Sacha

  I would like to develop a small notifications application for Windows in .NET that docks on the right/left side of the screen (not consuming more than 300px), should always be visible and force the rest of windows to not overlap this application (something like the old Office taskbar or Vista's Sidebar). I have no idea where to start. Can it be done using XAML/WPF? Since I haven't even started coding any option is valid at this point. Thanks!

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• Big Oh Notation - formal definition.

  - by aloh

  I'm reading a textbook right now for my Java III class. We're reading about Big-Oh and I'm a little confused by its formal definition. Formal Definition: "A function f(n) is of order at most g(n) - that is, f(n) = O(g(n)) - if a positive real number c and positive integer N exist such that f(n) <= c g(n) for all n = N. That is, c g(n) is an upper bound on f(n) when n is sufficiently large." Ok, that makes sense. But hold on, keep reading...the book gave me this example: "In segment 9.14, we said that an algorithm that uses 5n + 3 operations is O(n). We now can show that 5n + 3 = O(n) by using the formal definition of Big Oh. When n = 3, 5n + 3 <= 5n + n = 6n. Thus, if we let f(n) = 5n + 3, g(n) = n, c = 6, N = 3, we have shown that f(n) <= 6 g(n) for n = 3, or 5n + 3 = O(n). That is, if an algorithm requires time directly proportional to 5n + 3, it is O(n)." Ok, this kind of makes sense to me. They're saying that if n = 3 or greater, 5n + 3 takes less time than if n was less than 3 - thus 5n + n = 6n - right? Makes sense, since if n was 2, 5n + 3 = 13 while 6n = 12 but when n is 3 or greater 5n + 3 will always be less than or equal to 6n. Here's where I get confused. They give me another example: Example 2: "Let's show that 4n^2 + 50n - 10 = O(n^2). It is easy to see that: 4n^2 + 50n - 10 <= 4n^2 + 50n for any n. Since 50n <= 50n^2 for n = 50, 4n^2 + 50n - 10 <= 4n^2 + 50n^2 = 54n^2 for n = 50. Thus, with c = 54 and N = 50, we have shown that 4n^2 + 50n - 10 = O(n^2)." This statement doesn't make sense: 50n <= 50n^2 for n = 50. Isn't any n going to make the 50n less than 50n^2? Not just greater than or equal to 50? Why did they even mention that 50n <= 50n^2? What does that have to do with the problem? Also, 4n^2 + 50n - 10 <= 4n^2 + 50n^2 = 54n^2 for n = 50 is going to be true no matter what n is. And how in the world does picking numbers show that f(n) = O(g(n))? Please help me understand! :(

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• Selecte and retrieve file path to image using dialog box

  - by Steven

  I'm expanding Wordpress to function more like a CMS. This includes relating image to a post. Currently I have a text field where I paste an image path. Now I want to click a button which opens a dialog box, then I navigate to the right folder and select a file to "open" (from server side). The file path is returned. How can I go about accomplishing this?

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• python on the web, does it compile down to bytecode or is it more like php?

  - by Blankman

  Does python compile down to some byte code or is it rendered on the fly each time like php/asp? From my readings I read it has its own byte code format, so i figured it was like java/.net where it compiles into a intermediate language/byte code. so it is more effecient in that respect that php right?

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• Detecting html textarea's change

  - by Colby77

  Hi, I'd like to monitor my textarea's changes with jQuery. I can do this with the keyup event and it works perfectly. But what event I can get when a user click on the textarea (right mouse click), then choose paste? Click event occur only when the user click with the left mouse button on the textarea. How can I handle this situation?

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