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• Where does MSBuild store it's options, and how can I change them?

  - by Neil

  We have a large project at work, under source control, including an MSBuild file to run the build. Recently, the build has stopped working on my machine (I get errors saying that 'zzz' is ambiguous in the namespace 'yyy'). The same MSBuild file is working fine on both the build server and my co-workers machines. I have tried cloning a new copy of the project from the shared repository, but even with a clean copy, the build is failing for me. I think it must be a problem with the MSBuild settings on my machine, but I haven't been able to find anything that tells me where they are. Any help would be appreciated, since I'm starting to think my machine has just gone crazy.

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• WPF Dragging a window to the desktop

  - by pfaz

  I've seen some nice Adobe AIR demos where a component of the application is dragged outside of the application and dropped onto the desktop and then continues to run in a new window. This seems to be facilitated by the NativeDragManager class. Is there anything similar in WPF? How would you go about implementing this sort of functionality in WPF to allow a user control to be dragged to the desktop and then continue to run in a new window? This is great for multi-monitor scenarios and exactly what msft have added to vs2010. Regards pfaz

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• User Drawn Controls: the MSN chat window

  - by Tommy

  I'm wondering about the famous MSN chat clients conversation windows! I'm sure there must be alot of different aspects but I'd like to focus on those little sliding panes. For instance where the pictures of the people in the conversation is displayed. When you click the collapse button the pictures dissapear and the panel gracefully slides in, and when you click it again to expand, it slides out and the pictures are smoothly faded in. How would one go about customly drawing a control in WinForms that had simmilar behaviour?

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• Conditional value for ActiveRecord create method only

  - by Steve Wright

  I have a form where I have an administrator creating new users. The form uses the User model I created (login, password, first_name, etc...). For the last field on the form, I want to have a checkbox that doesn't need to be stored as part of the User record, but it is needed for the controller. This will control whether or not the newly created user will receive a welcome email or not. def create @user = User.new(params[:user]) if @user.save if @user.send_welcome_email UserMailer.welcome_email(@user).deliver end redirect_to(admin_users_url, :notice => "User #{@user.name} was successfully created.") else render :action => "new" end end In my view (haml) I am trying to access it like this: %p Send Welcome Email? = f.check_box :send_welcome_email I tried to make this an attr_accessible: :send_welcome_email but the controller does not recognize it. I get an undefined method 'send_welcome_email' for #&lt;User:0x00000100d080a8&gt; I would like it to look like this: What is the best way to get this working:

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• How to use JQuery to remove dynamic content?

  - by ed.talmadge

  I have an html page that is generated by a CMS. I cannot modify the page, but can add JavaScript. Each time the page loads, a JavaScript function (that I cannot modify) dynamically inserts a paragraph onto the page. How can I use JQuery to .remove() that paragraph whenever it is loaded? For example, when the page first loads, it look like this (blank): <div></div> Then, a few seconds later, a JavaScript function (that I have no control over) adds a paragraph to the page. The page then looks like this: <div><p id="foo">bar</p></div> How can I use JQuery to remove the paragraph with id=foo each time it is dynamically loaded onto the page?

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• C# : FieldInfo.GetValue returns null

  - by Florian

  Hi and Happy New year ! I've a problem to retrieve my control f2 in the variable o via Reflection : public partial class Form1 : Form { private Form2 f2; public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { Form2 f2 = new Form2(); f2.Show(); } private void button2_Click(object sender, EventArgs e) { Type controlType = this.GetType(); FieldInfo f = controlType.GetField("f2", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance); object o = f.GetValue(this); // o == null; } } Thank you for your help !

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• C#: split a string into runs of characters, numbers and delimited strings and process it

  - by nrkn

  OK my regex is a bit rusty and I've been struggling with this particular problem... I need to split and process a string containing any number of the following, in any order: Chars (lowercase letters only) Quote delimited strings Ints The strings are pretty weird (I don't have control over them). When there's more than one number in a row in the string they're seperated by a comma. They need to be processed in the same order that they appeared in the original string. For example, a string might look like: abc20a"Hi""OK"100,20b With this particular string the resulting call stack would look a bit like: ProcessLetters( new[] { 'a', 'b', 'c' } ); ProcessInts( 20 ); ProcessLetters( 'a' ); ProcessStrings( new[] { "Hi", "OK" } ); ProcessInts( new[] { 100, 20 } ); ProcessLetters( 'b' ); What I could do is treat it a bit like CSV, where you build tokens by processing the characters one at a time, but I think it could be more easily done with a regex?

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• Does anyone else think instance variables are problematic in database-backed applications?

  - by Ben Aston

  It occurs to me that state control in languages like C# is not well supported. By this, I mean, it is left upto the programmer to manage the state of in-memory objects. A common use-case is that instance variables in the domain-model are copies of information residing in persistent storage (i.e. the database). Clearly this violates the single point of authority principle, and "synchronisation" has to be managed by the developer. I envisage a system where instead of instance variables, we have simple public access/mutator methods marked with attributes that link them to the database, and where reads and writes are mediated by a framework that decides whether to hit the database. Does such a system exist? Am I completely missing the point, or is there some truth to this idea?

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• My website crashes Firefox. What do I do?

  - by Jason Prado

  My website doesn't use Flash or any plugins; just javascript (jQuery, Google Maps). It doesn't crash FF 3.6 all the time, but it usually does after a few minutes. It can happen on lots of different pages. Sometimes it crashes when I'm scrolling the page, sometimes when I'm interacting with a control. Where do I even start debugging? Should I go through the hassle of attaching gdb to Firefox and getting a stack trace, then praying that it sheds some light on the offending code?

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• When to rewrite vs. upgrade?

  - by MrGumbe

  All custom legacy software needs changing, or so say our users. Sometimes they want a feature or two added and all that is necessary to change a bit of code, add a control, or some other minor upgrade task. Sometimes they want to ditch their error-prone VB5 desktop solution and rewrite the whole thing as a rich Web 2.0 ASP.NET MVC application. More often, however, the scope of changes to legacy functionality lies somewhere between these two extremes. What rules of thumb to you use to decide whether you should upgrade an existing application or start from scratch?

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• Accessing "current class" from WPF custom MarkupExtension

  - by chaiguy

  I'm attempting to write a custom MarkupExtension to make my life easier by giving me a better way to specify bindings in XAML. However I would like to know if there is any way I can access the object that represents the file the MarkupExtension is used in. In other words, suppose I have a UserControl that defines a particular rendition of a data model of my program. This control has lots of visual stuff like grids, borders and general layout. If I use my MarkupExtension on a particular property of some element in this UserControl, I want to access the instance of the UserControl, without knowing what type it is (I plan on using reflection). Is this at all possible?

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• Generate MySQL data dump in SQL from PHP

  - by Álvaro G. Vicario

  I'm writing a PHP script to generate SQL dumps from my database for version control purposes. It already dumps the data structure by means of running the appropriate SHOW CREATE .... query. Now I want to dump data itself but I'm unsure about the best method. My requirements are: I need a record per row Rows must be sorted by primary key SQL must be valid and exact no matter the data type (integers, strings, binary data...) Dumps should be identical when data has not changed I can detect and run mysqldump as external command but that adds an extra system requirement and I need to parse the output in order to remove headers and footers with dump information I don't need (such as server version or dump date). I'd love to keep my script as simple as I can so it can be hold in an standalone file. What are my alternatives?

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• asp.net mvc 2 multiple partial view

  - by 303

  Hey Guys, I have a contoller that renders 3 different views. But I also have a common part (div) for every view. I thought that I can create an UserControl with own controller and include that control on my views (New controller and view as controll). How should I use that UserControl? Should it be a partial view? Or different approach - can I have multiple partial views on one page? I've been searching the web for the last view days and haven't found working solution that suits me. Also I want to use Strongly Typed views/data. Cheers

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• Asp.Net gridview customization

  - by Kunal

  Hi If you go to http://ifdefined.com/btnet/bugs.aspx you will see a long list of sample data in an asp.net gridview control. What I need to do is something similar. I need to implement the filtering system by placing dropdown controls with dynamic values on the headers and then filter the record according to them. If you look carefully they are filtering the data based on multiple drodown selections as well. Kindly help me out. Any kind of input is highly appreciated. Thanks in advance for your time.

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• using APIs with oauth for single user

  - by Josh

  I'm trying to make use of various APIs including twitter, youtube, etc because we want to embed recent entries (tweets, videos) on our website. However, since I'm just retrieving my own data, I'm wondering how I can do this simpler than the multi-step process required by OAuth. Twitter provides me with my own access token I can use directly, so that kinda works, but I can't find any such token in the YouTube documentation. So how am I supposed to make use of the api if I just want to get a simple list of stuff? how exaclty am I supposed to authenticate my own website to use my own account? I think i might have things all wrong and if so please point me in the right direction. I tried using rss feeds but they don't give me as much control over what I retrieve as using the API directly... any insight or suggestions are appreciated!

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• Apache2 on Ubuntu Server w/ CGI, FastCGI, mod_php

  - by illegal3alien

  I've looked at various websites on configuring Apache with cgi and can't get mod_fcgid to work. It works fine using mod_php5, but I wanted to compare performance using cgi and fastcgi. I tried methods using FGCIWrapper among various other techniques and the only one that didn't result in an unlogged 403 or download of the file was using "Action application/x-httpd-php /usr/bin/php-cgi" When trying to configure mod_fcgid the file normally just started a download of an unprocessed file. I used wget to check headers and type was "application/x-httpd-php" At one point I was able to get to the page, but it resulted in a 403, which was listed in access.log, but not error.log (I was told it should be in there too) I tried to get it working on a fresh install of Ubuntu Server 10.04 LTS and 10.10 and had the same results on both, so I'm not doing something correctly in terms of configuration. I tried virtualmin and could only get mod_php to work. The page just prompted a download when selecting cgi or fcgi from the control panel.

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• How to force main Acivity to wait for subactivity in Android?

  - by rmaster

  hi, I am calling a subactivity from main activity. This subactivity should take few numbers from user (i'm using Edit text control to achieve this), save them to static variable in another class and terminate. I want main activity to wait for subactivity but both are just running simultaneously. Even doing sth like that doesn't help: Thread t = new Thread(new Runnable(){ public void run(){ Log.v("==================", "run "+new Date()); startActivityForResult(new Intent(ctx,myCustomSubactivity.class),1); } }); Log.v("==================", "calling run "+new Date()); t.start(); try { t.join(); } catch (InterruptedException e) {Log.v("==================", "can't join");} Log.v("==================", "back from activity "+new Date()); do you know how to force main activity to wait? Thread.wait() method is not supported in Android(program throws error).

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• Need help with displaying the message correctly in the pole display always starting at the beginning

  - by SA

  Hi, I am using an HP RS232 pole display with the following setting: Char type: USA/Europe (default) Command mode: EPSON (default) Baud rate: 9600, n , 8, 1 (default?) Passthru None (Default) Here's the code using System.IO.Ports; private SerialPort port; port = new SerialPort("COM2", 9600, Parity.None, 8, StopBits.One); port.Handshake = Handshake.None; Port.WriteLine("Welocome to something something"); It has 2 lines consisting of 20 characters each with a total of 40 characters. I have no control how and where the characters get displayed. I would like it to always begin on line 1 position 1 but as I said earlier how would I be able to do that. The same program if I run again and again it moves a character to the left. I have set it to accept ASCII char set and so I am able to type as is visble in the Writeline message

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• Slow first page load on asp.net site

  - by Tabloo Quijico

  Hi, Every now and then (always after a long period of idle-time, e.g. overnight) when I access a site built using asp.net - it takes around 15 seconds to load the page (15 seconds before I see any progress whatsoever, then the page comes up fast). Further pages on that site, or refreshes, are quick as usual - they are also fast on other machines, only the first one seems to take the 'hit'. Page tracing never through anything up (whole cycle was a fraction of a second) So my question is where else should I be looking? Perhaps IIS? Or could it still be my asp.net app and I'm just looking in the wrong place (the trace) for clues? As I don't have much control over the IIS server, anything I can check through asp.net would be more helpful, before I go ask that particular admin. cheers :D

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• Get result from mysql orderd by IN clause

  - by SchlaWiener

  I have the following query SELECT * FROM invoice WHERE invoice_id IN (13, 15, 9, 27) My result is: invoice_id | invoice_number | ... ------------------------------------ 9 | 201006003 | 13 | 201006020 | 15 | 201006022 | 27 | 201006035 | which is the result set I want except that is ordered by the invoice_id (which is an autoincrement value). Now I want the result in the order I specified in my query (13, 15, ...). Is there a way to achive that? The background is that I have a DataTable bound to a DataGridView. The user can filter and sort the result but if he want's to print the result I don't use the DataTable for printing because it only contains the most important columns and instead I pull the whole records from the database and pass it to my printing control. I also tried to extend the existing DataTable with the missing results but that seems to slower than using the IN (...) query.

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• Implementing a class for the functionality of theme managing :

  - by Malcolm

  I have a class library silverlight project , so thee is no app xaml in it. I am defining all my styles in one ResourceDictionary xaml(So that every style i defined inside my project be globel). Now if i want to apply a style to a custom control which don't have its xaml ..only .cs : Then i can do it with the help of some class which will have the functionality to apply the style defined in the resource dictionary. But I dont know hoe this functionality will be achieved, so any help will be gratefull. Thanks in advance.

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• What would be the simplest way to deal with a text file using JSP?

  - by Nano Taboada

  First and foremost I should acknowledge that I have no experience at all using Java ServerPages, but I'm positive about achieving this task if you guys help me out a bit since it doesn't seem like something difficult for a seasoned JSP programmer. Anyway the thing is, there's an actual running JSP application within a *NIX box which I somewhat administer with kind of good permissions. The idea is to create a new but dead simple JSP page to control some Korn Shell scripts I've got running there. So the goal is to make some sort of HTML form that will be writing some kind of scriptStatus.on / scriptStatus.off file: #!usr/bin/ksh # coolScript.sh # This is my cool script that is being launched by cron every 10 minutes. if [ -e scriptStatus.off ] then # monitor disabled else # monitor enabled fi which then can be checked for existence within the running script, therefore allowing to easily activate / deactivate it without actually have do deal with cron. Please let me know if all this does make any sense and don't hesitate to ask as much questions as needed. Thanks much in advance!

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• Avoiding try/catch hell in my web pages

  - by Shaun_web

  I am writing an ASP.NET website, which is a new framework for me. I find that I have a try/catch block in literally every method of my codebehind. All these try/catch blocks do is catch the exception and then pop-up an error message to the user. Isn't there some sort of global error handler in ASP.NET? It's worth noting that my error handling is within control (ASCX) pages, and I would like a way to simply get each ASCX to handle its own errors without forcing all error handling just to a single master page or a redirect...

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• Where does the data model go in a Prism app?

  - by HawkeyeJoeS

  I'm having trouble where to put our data model in our Prism app. Most, if not all or our data will be coming from web services and the web services are unique for each module. Unfortunately, there will be objects that need to be shared (such as a person/user object). I'm really torn about whether to add these services directly to the module, so that each is truly independent, or create a separate project to house the web service proxies and business entities. The modules are being built by different teams, but will all live in the same solution (and source control, of course).

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• Can you use Win32 GUI in a browser plugin?

  - by John

  Of course it would mean you're plugin is not cross-platform but let's focus on the technical side... Is a browser plugin (like done in NPAPI) restricted in what it can do? Or do you get fairly free reign to access the PC and the render-window you're given? For instance can you create Win32/MFC controls in your browser this way? A side question - is your browser plugin conceptually akin to a .DLL, which is therefore just arbitrary compiled code implementing a specific interface for browser control/communication?

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