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• Control to Control Binding in WPF/Silverlight

  - by psheriff

  In the past if you had two controls that you needed to work together, you would have to write code. For example, if you want a label control to display any text a user typed into a text box you would write code to do that. If you want turn off a set of controls when a user checks a check box, you would also have to write code. However, with XAML, these operations become very easy to do. Bind Text Box to Text Block As a basic example of this functionality, let’s bind a TextBlock control to a TextBox. When the user types into a TextBox the value typed in will show up in the TextBlock control as well. To try this out, create a new Silverlight or WPF application in Visual Studio. On the main window or user control type in the following XAML. <StackPanel>  <TextBox Margin="10" x:Name="txtData" />  <TextBlock Margin="10"              Text="{Binding ElementName=txtData,                             Path=Text}" /></StackPanel> Now run the application and type into the TextBox control. As you type you will see the data you type also appear in the TextBlock control. The {Binding} markup extension is responsible for this behavior. You set the ElementName attribute of the Binding markup to the name of the control that you wish to bind to. You then set the Path attribute to the name of the property of that control you wish to bind to. That’s all there is to it! Bind the IsEnabled Property Now let’s apply this concept to something that you might use in a business application. Consider the following two screen shots. The idea is that if the Add Benefits check box is un-checked, then the IsEnabled property of the three “Benefits” check boxes will be set to false (Figure 1). If the Add Benefits check box is checked, then the IsEnabled property of the “Benefits” check boxes will be set to true (Figure 2). Figure 1: Uncheck Add Benefits and the Benefits will be disabled. Figure 2: Check Add Benefits and the Benefits will be enabled. To accomplish this, you would write XAML to bind to each of the check boxes in the “Benefits To Add” section to the check box named chkBenefits. Below is a fragment of the XAML code that would be used. <CheckBox x:Name="chkBenefits" /> <CheckBox Content="401k"           IsEnabled="{Binding ElementName=chkBenefits,                               Path=IsChecked}" /> Since the IsEnabled property is a boolean type and the IsChecked property is also a boolean type, you can bind these two together. If they were different types, or if you needed them to set the IsEnabled property to the inverse of the IsChecked property then you would need to use a ValueConverter class. SummaryOnce you understand the basics of data binding in XAML, you can eliminate a lot code. Connecting controls together is as easy as just setting the ElementName and Path properties of the Binding markup extension. NOTE: You can download the complete sample code at my website. http://www.pdsa.com/downloads. Choose Tips & Tricks, then "SL – Basic Control Binding" from the drop-down. Good Luck with your Coding,Paul Sheriff ** SPECIAL OFFER FOR MY BLOG READERS **Visit http://www.pdsa.com/Event/Blog for a free eBook on "Fundamentals of N-Tier".

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• Shadow copy referencing invalid volume from symboliclink

  - by ccook

  I recently replaced my motherboard after the last one failed (was shorting and causing random reboots). I'm sure this was not healthy for the machine, and that a clean install would do wonders, but I'd like to fix the current install. That aside, I've been tracking down a pair of errors in the application log. Volume Shadow Copy Service error: Error calling a routine on a Shadow Copy Provider {b5946137-7b9f-4925-af80-51abd60b20d5}. Routine details IVssSnapshotProvider::QueryVolumesSupportedForSnapshots(ProviderId,29,...) [hr = 0x80042302, A Volume Shadow Copy Service component encountered an unexpected error. Check the Application event log for more information. ]. Operation: Query volumes supported by this provider Context: Provider ID: {b5946137-7b9f-4925-af80-51abd60b20d5} Snapshot Context: 29 Followed by Volume Shadow Copy Service error: Unexpected error calling routine Error calling CreateFile on volume '\?\Volume{f4bda86e-049d-11e1-9255-bcaec56690a1}\'. hr = 0x80070020, The process cannot access the file because it is being used by another process. This error is reproducible at command line, creating the two event log entries C:\Windows\system32>vssadmin list volumes vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool (C) Copyright 2001-2005 Microsoft Corp. Error: The shadow copy provider had an unexpected error while trying to process the specified command. Using WinObj from Sysinternals, I have tracked down the global object. '\?\Volume{f4bda86e-049d-11e1-9255-bcaec56690a1}\' - SymbolicLink - '\Device\HarddiskVolume8' Running DISKPART, and running the command "list volume" within it lists volumes 0 through 6, there is not a HarddiskVolume8. How can I remove this reference to HarddiskVolume8, and get shadow copy up and running?

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• Take Control Of Web Control ClientID Values in ASP.NET 4.0

  Each server-side Web control in an ASP.NET Web Forms application has an <code>ID</code> property that identifies the Web control and is name by which the Web control is accessed in the code-behind class. When rendered into HTML, the Web control turns its server-side <code>ID</code> value into a client-side <code>id</code> attribute. Ideally, there would be a one-to-one correspondence between the value of the server-side <code>ID</code> property and the generated client-side <code>id</code>, but in reality things aren't so simple. By default, the rendered client-side <code>id</code> is formed by taking the Web control's <code>ID</code> property and prefixed it with the <code>ID</code>

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• Ajax Control Toolkit and Superexpert

  - by Stephen Walther

  Microsoft has asked my company, Superexpert Consulting, to take ownership of the development and maintenance of the Ajax Control Toolkit moving forward. In this blog entry, I discuss our strategy for improving the Ajax Control Toolkit. Why the Ajax Control Toolkit? The Ajax Control Toolkit is one of the most popular projects on CodePlex. In fact, some have argued that it is among the most successful open-source projects of all time. It consistently receives over 3,500 downloads a day (not weekends -- workdays). A mind-boggling number of developers use the Ajax Control Toolkit in their ASP.NET Web Forms applications. Why does the Ajax Control Toolkit continue to be such a popular project? The Ajax Control Toolkit fills a strong need in the ASP.NET Web Forms world. The Toolkit enables Web Forms developers to build richly interactive JavaScript applications without writing any JavaScript. For example, by taking advantage of the Ajax Control Toolkit, a Web Forms developer can add modal dialogs, popup calendars, and client tabs to a web application simply by dragging web controls onto a page. The Ajax Control Toolkit is not for everyone. If you are comfortable writing JavaScript then I recommend that you investigate using jQuery plugins instead of the Ajax Control Toolkit. However, if you are a Web Forms developer and you don’t want to get your hands dirty writing JavaScript, then the Ajax Control Toolkit is a great solution. The Ajax Control Toolkit is Vast The Ajax Control Toolkit consists of 40 controls. That’s a lot of controls (For the sake of comparison, jQuery UI consists of only 8 controls – those slackers J). Furthermore, developers expect the Ajax Control Toolkit to work on browsers both old and new. For example, people expect the Ajax Control Toolkit to work with Internet Explorer 6 and Internet Explorer 9 and every version of Internet Explorer in between. People also expect the Ajax Control Toolkit to work on the latest versions of Mozilla Firefox, Apple Safari, and Google Chrome. And, people expect the Ajax Control Toolkit to work with different operating systems. Yikes, that is a lot of combinations. The biggest challenge which my company faces in supporting the Ajax Control Toolkit is ensuring that the Ajax Control Toolkit works across all of these different browsers and operating systems. Testing, Testing, Testing Because we wanted to ensure that we could easily test the Ajax Control Toolkit with different browsers, the very first thing that we did was to set up a dedicated testing server. The dedicated server -- named Schizo -- hosts 4 virtual machines so that we can run Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, and Internet Explorer 9 at the same time (We also use the virtual machines to host the latest versions of Firefox, Chrome, Opera, and Safari). The five developers on our team (plus me) can each publish to a separate FTP website on the testing server. That way, we can quickly test how changes to the Ajax Control Toolkit affect different browsers. QUnit Tests for the Ajax Control Toolkit Introducing regressions – introducing new bugs when trying to fix existing bugs – is the concern which prevents me from sleeping well at night. There are so many people using the Ajax Control Toolkit in so many unique scenarios, that it is difficult to make improvements to the Ajax Control Toolkit without introducing regressions. In order to avoid regressions, we decided early on that it was extremely important to build good test coverage for the 40 controls in the Ajax Control Toolkit. We’ve been focusing a lot of energy on building automated JavaScript unit tests which we can use to help us discover regressions. We decided to write the unit tests with the QUnit test framework. We picked QUnit because it is quickly becoming the standard unit testing framework in the JavaScript world. For example, it is the unit testing framework used by the jQuery team, the jQuery UI team, and many jQuery UI plugin developers. We had to make several enhancements to the QUnit framework in order to test the Ajax Control Toolkit. For example, QUnit does not support tests which include postbacks. We modified the QUnit framework so that it works with IFrames so we could perform postbacks in our automated tests. At this point, we have written hundreds of QUnit tests. For example, we have written 135 QUnit tests for the Accordion control. The QUnit tests are included with the Ajax Control Toolkit source code in a project named AjaxControlToolkit.Tests. You can run all of the QUnit tests contained in the project by opening the Default.aspx page. Automating the QUnit Tests across Multiple Browsers Automated tests are useless if no one ever runs them. In order for the QUnit tests to be useful, we needed an easy way to run the tests automatically against a matrix of browsers. We wanted to run the unit tests against Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, Internet Explorer 9, Firefox, Chrome, and Safari automatically. Expecting a developer to run QUnit tests against every browser after every check-in is just too much to expect. It takes 20 seconds to run the Accordion QUnit tests. We are testing against 8 browsers. That would require the developer to open 8 browsers and wait for the results after each change in code. Too much work. Therefore, we built a JavaScript Test Server. Our JavaScript Test Server project was inspired by John Resig’s TestSwarm project. The JavaScript Test Server runs our QUnit tests in a swarm of browsers (running on different operating systems) automatically. Here’s how the JavaScript Test Server works: 1. We created an ASP.NET page named RunTest.aspx that constantly polls the JavaScript Test Server for a new set of QUnit tests to run. After the RunTest.aspx page runs the QUnit tests, the RunTest.aspx records the test results back to the JavaScript Test Server. 2. We opened the RunTest.aspx page on instances of Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, Internet Explorer 9, FireFox, Chrome, Opera, Google, and Safari. Now that we have the JavaScript Test Server setup, we can run all of our QUnit tests against all of the browsers which we need to support with a single click of a button. A New Release of the Ajax Control Toolkit Each Month The Ajax Control Toolkit Issue Tracker contains over one thousand five hundred open issues and feature requests. So we have plenty of work on our plates J At CodePlex, anyone can vote for an issue to be fixed. Originally, we planned to fix issues in order of their votes. However, we quickly discovered that this approach was inefficient. Constantly switching back and forth between different controls was too time-consuming. It takes time to re-familiarize yourself with a control. Instead, we decided to focus on two or three controls each month and really focus on fixing the issues with those controls. This way, we can fix sets of related issues and avoid the randomization caused by context switching. Our team works in monthly sprints. We plan to do another release of the Ajax Control Toolkit each and every month. So far, we have competed one release of the Ajax Control Toolkit which was released on April 1, 2011. We plan to release a new version in early May. Conclusion Fortunately, I work with a team of smart developers. We currently have 5 developers working on the Ajax Control Toolkit (not full-time, they are also building two very cool ASP.NET MVC applications). All the developers who work on our team are required to have strong JavaScript, jQuery, and ASP.NET MVC skills. In the interest of being as transparent as possible about our work on the Ajax Control Toolkit, I plan to blog frequently about our team’s ongoing work. In my next blog entry, I plan to write about the two Ajax Control Toolkit controls which are the focus of our work for next release.

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• How to Install vaio-control-center from source?

  - by KasiyA

  I have a problem about turning off keyboard backlight that I asked here with no useful answers. After searching on internet I find a package for vaio control center and downloaded it from here, I don't know how to install it. This is the output of trying one solution: USER@XXXXpc:~/vaio-control-center-0.1$ ls compile Makefile run vaio-control-center vcc COPYING moc_main_window.cpp ui_main_window.h vaio-control-center.pro USER@XXXXpc:~/vaio-control-center-0.1$ ./compile make: *** No rule to make target `/usr/share/qt/mkspecs/linux-g++-64/qmake.conf', needed by `Makefile'. Stop. USER@XXXXpc:~/vaio-control-center-0.1$ ./run ./run: 3: ./run: ./vaio-control-center: not found USER@XXXXpc:~/vaio-control-center-0.1$ Updated I tried also with @pandya's suggestion from here. and the output is as follows: root@user-pc:/# cd /home/user/vaio-f11-linux.control-center root@user-pc:/home/user/vaio-f11-linux.control-center# ls compile COPYING resource.qrc run sony-acpid vaio-control-center.pro vcc root@user-pc:/home/user/vaio-f11-linux.control-center# ./compile -su: ./compile: Permission denied root@user-pc:/home/user/vaio-f11-linux.control-center# sudo ./compile sudo: ./compile: command not found root@user-pc:/home/user/vaio-f11-linux.control-center# gksudo ./compile root@user-pc:/home/user/vaio-f11-linux.control-center# <----- nothing happened here root@user-pc:/home/user/vaio-f11-linux.control-center# ./run -su: ./run: Permission denied root@user-pc:/home/user/vaio-f11-linux.control-center# sudo ./run sudo: ./run: command not found root@user-pc:/home/user/vaio-f11-linux.control-center# gksudo ./run root@user-pc:/home/user/vaio-f11-linux.control-center# <----- nothing happened here root@user-pc:/home/user/vaio-f11-linux.control-center# and after running that I didn't see any affect on keyboard backlight.

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• Any option to change Windows XP default Copy Here naming from "Copy of {name}.{ext}" to "{name}.{ext

  - by scunliffe

  Is there an option or tool that will allow me to change the default naming convention for files copied into the same directory in Windows (XP) and above. e.g. from: Copy of {name}.{ext} to: {name}.{ext}.copy Currently: original_file.php Copy of original_file.php Desired: original_file.php original_file.php.copy This would make finding/working with duplicated files much easier (they auto-sort together) and the filetype (by extension) changes thus it can't accidentally "break" something (e.g. if it were a *.java file, upon compiling I would get errors)

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• How to setup Secure SemiPublic Revision Control System

  - by user24912

  I have a windows server with a project configured with a revision control system. Suppose it's GIT or SVN or .... Suppose there are 10 people around the globe working on this project. The first thing that comes in to mind is to secure the connection between these programmer and the server with SSH. but my problem is that the a hacker can destroy the server if he gets the SSH username and password user account (tell me if i'm wrong). So I need a secure way to let thoes programmers push their revision to the server. Any ideas would be lovely

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• How to access a named element in a control that inherits from a templated control

  - by Mrt

  Hello this is similar to http://stackoverflow.com/questions/2620165/how-to-access-a-named-element-of-a-derived-user-control-in-silverlight with the difference is inheriting from a templated control, not a user control. I have a templated control called MyBaseControl <Style TargetType="Problemo:MyBaseControl"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Problemo:MyBaseControl"> <Grid x:Name="LayoutRoot" Background="White"> <Border Name="HeaderControl" Background="Red" /> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> public class MyBaseControl : Control { public UIElement Header { get; set; } public MyBaseControl() { DefaultStyleKey = typeof(MyBaseControl); } public override void OnApplyTemplate() { base.OnApplyTemplate(); var headerControl = GetTemplateChild("HeaderControl") as ContentPresenter; if (headerControl != null) headerControl.Content = Header; } } I have another control called myControl which inherits from MyBaseControl Control <me:MyBaseControl x:Class="Problemo.MyControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" xmlns:me="clr-namespace:Problemo" d:DesignHeight="300" d:DesignWidth="400"> <me:MyBaseControl.Header> <TextBlock Name="xxx" /> </me:MyBaseControl.Header> </me:MyBaseControl> public partial class MyControl : MyBaseControl { public string Text { get; set; } public MyControl(string text) { InitializeComponent(); Text = text; Loaded += MyControl_Loaded; } void MyControl_Loaded(object sender, RoutedEventArgs e) { base.ApplyTemplate(); xxx.Text = Text; } } The issue is xxx is null. How do I access the xxx control in the code behind ?

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• Unable to restore from Shadow Copy due to long filename

  - by Spongeboy

  We have shadow copy enabled on our Windows SBS 2008 server. Attempting to restore a file from shadow copy gave the following error- The source file name(s) are larger than is supported by the file system. Try moving to a location which has a shorter path name, or try renaming to shorter name(s) before attempting this operation. The filename has 67 characters, and it's shadow copy path is 170 characters. These seem to be under the NTFS limits (260?). We tried- Copying to the shortest path possible (C:) Copying to the shortest path possible on both a client computer and the server itself Is it possible to rename files in a shadow copy, before doing the copy? Any idea why the error is appearing despite the filename size appearing to be within limits?

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• Debian based OS: Show system notification on clipboard copy/paste events

  - by ifischer

  When working with Linux (Debian based), I often experience problems in relation to the copy paste commands: I copy something with Ctrl+C or by selecting it with the mouse, but when I try to paste it somewhere else, the clipboard is empty and nothing happens - whatever reason caused this. This annoys me, as I have to switch to the source application again and again copy the text. So to really be sure if something was copied into the clipboard I would like it if the window manager (be it Gnome, KDE, etc) would show a Desktop Notification (for example powered by libnotify) as soon as anything is copied into the clipboard, showing the content that has been copied into the clipboard. Is that possible by using one of the many clipboard managers out there (glippy, clipit, ...)? If not, can I write a (DBus?)-hook, which is triggered during copy-to-clipboard-actions, showing the content which is to copy inside the Desktop Notification? (The latter approach would be more interesting, since I'm interested in hooking into system events in general)

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• What is the difference between Skip and Don't Copy buttons in Copy File dialog?

  - by Vadim

  This is a silly question. In Windows 7/Vista when a user trying to copy multiple file, it looks like he has five options: Copy and Replace Don't Copy Copy, but keep both files Skip Cancel the operation. It looks to me that option 2 (Don't Copy) is the same as 4 (Skip). However, it's kind of strange for Microsoft to put two buttons that perform the same action. I probably miss something. Could you please tell me what I'm missing?

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• Can't copy paste on the first try

  - by Sunny88

  When I try to copy and paste something from firefox to say notepad or word, it doesn't work on the first try. That is I go to firefox, select text, right click, select copy, then switch to notepad, right click, select paste, but it pastes not the thing which I copied just now, but whatever was in the clipboard before I copied. If after this I go back to firefox and copy that text again, and then go back to notepad, then it will paste correctly. So in order to copy paste something it takes me 2 tries. This doesn't always happen this way, but only sometimes. So sometimes I can paste on first try, but sometimes it takes me two tries. I am using firefox 7.0.1 and windows 7. Also it is not only with firefox, sometimes the same thing happens when I copy paste from other programs. What could be the reason, and how can I fix this?

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• Batch copy gives errors, xcopy works fine

  - by ndm13

  I am writing a general file backup program. It searches the drive for files matching a set of types and then writes them to a folder on the desktop. I wrote it using xcopy on Windows XP but upon learning that xcopy was deprecated in favor of robocopy in Vista and newer, still wanting to maintain compatibility I decided to switch to the non-deprecated copy. This is where the problems begin. I'm trying to fix the copy routine. I thought I had everything sorted out, but it doesn't copy anything. My output is zero files copied for every iteration. Original Code using xcopy: for /r %%a in (*.bmp *.dds *.gif *.jpg *.jpeg *.png *.psd *.pspimage *.tga *.thm *.tif *.tiff) do ( echo f | xcopy "%%a" "%HOMEDRIVE%%HOMEPATH%\Desktop\LDR\Images\Bitmap\%%~nxa" /q /y /g /c ) Revised (broken) Code using copy: for /r %%a in (*.bmp *.dds *.gif *.jpg *.jpeg *.png *.psd *.pspimage *.tga *.thm *.tif *.tiff) do ( copy "%%a" "%HOMEDRIVE%%HOMEPATH%\Desktop\LDR\Images\Bitmap\%%~nxa" /d /y /z ) Output: The system cannot find the path specified. 0 files copied. I know that it seems everyone uses either xcopy or robocopy but can anyone help with copy? Note: I'm using Batch to keep it very lightweight and command-line accessible.

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• Slow File Copy observed copying 40GB files across network to iSCSI device

  - by Rick

  Here's a curious ones for the gurus: Setup: Source Machine: Windows Server 2003 R2 machine with local hard drive. VHD file of 40GB. 1 x 1Gbps network card, Cat6 cable, switch. Target Machine: Windows Server 2008 R2 machine with iSCSI connection to iSCSI target on separate machine (1TB, RAID5). 1 x 1Gbps network card, Cat6 cable, connected to same switch as for Source Machine. Second 1Gbps network card, Cat6 cable, connected via isolated switch to the iSCSI target. Switches are Netgear JGS524 model (web managed). If I copy from the Win2003R2 machine to Win2008R2 machine local drive I get 40GB in 45 minutes, 36 seconds. If I copy from the Win2008R2 machine to the iSCSI target (local drive to iSCSI target) I get 40GB in 37 minutes 56 seconds. If I copy from the Win2003R2 machine to the iSCSI target via the Win2008R2 machine I get 40GB in 3 hours, 50 minutes, 24 seconds. All copies were done via the following command issued on the Win2008R2 box: XCOPY <source> <target> /J XCOPY /J - Copies using unbuffered I/O. Recommended for very large files. So, what's the bit I'm missing here? Why does a back-to-back copy take in total 1 hour, 23 minutes, 32 seconds when a "straight through" copy take almost 3 times as long? Switches show no errors, network hovers around the 3% utilisation mark for the duration of the copy (whereas the "back-to-back" copies are around the 25% utilisation mark). What have I missed?

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• Development processes, the use of version control, and unit-testing

  - by ct01

  Preface I've worked at quite a few "flat" organizations in my time. Most of the version control policy/process has been "only commit after it's been tested". We were constantly committing at each place to "trunk" (cvs/svn). The same was true with unit-testing - it's always been a "we need to do this" mentality but it never really materializes in a substantive form b/c there is no institutional knowledge base to do it - no mentorship. Version Control The emphasis for version control management at one place was a very strict protocol for commit messages (format & content). The other places let employees just do "whatever". The branching, tagging, committing, rolling back, and merging aspect of things was always ill defined and almost never used. This sort of seems to leave the version control system in the position of being a fancy file-storage mechanism with a meta-data component that never really gets accessed/utilized. (The same was true for unit testing and committing code to the source tree) Unit tests It seems there's a prevailing "we must/should do this" mentality in most places I've worked. As a policy or standard operating procedure it never gets implemented because there seems to be a very ill-defined understanding about what that means, what is going to be tested, and how to do it. Summary It seems most places I've been to think version control and unit testing is "important" b/c the trendy trade journals say it is but, if there's very little mentorship to use these tools or any real business policies, then the full power of version control/unit testing is never really expressed. So grunts, like myself, never really have a complete understanding of the point beyond that "it's a good thing" and "we should do it". Question I was wondering if there are blogs, books, white-papers, or online journals about what one could call the business process or "standard operating procedures" or uses cases for version control and unit testing? I want to know more than the trade journals tell me and get serious about doing these things. PS: @Henrik Hansen had a great comment about the lack of definition for the question. I'm not interested in a specific unit-testing/versioning product or methodology (like, XP) - my interest is more about work-flow at the individual team/developer level than evangelism. This is more-or-less a by product of the management situation I've operated under more than a lack of reading software engineering books or magazines about development processes. A lot of what I've seen/read is more marketing oriented material than any specifically enumerated description of "well, this is how our shop operates".

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• Stairway to Database Source Control Level 2: Getting a Database into Source Control

  In this level, we're going to continue the philosophy of learning by example, and get a database into our SVN repository. We will also consider our overall approach to source control for databases, and the manner in which our team will develop these databases, concurrently. 24% of devs don’t use database source control – make sure you aren’t one of themVersion control is standard for application code, but databases haven’t caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out…

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• Is "watermarking" code with random trailing whitespace a good way to detect plagiarism?

  - by paperjam

  Consider this: int f(int x) { return 2 * x * x; } and this int squareAndDouble(int y) { return 2*y*y; } If you found these in independent bodies of code, you might give the two programmers the benefit of the doubt and assume they came up with more-or-less the same function independently. But look at the whitespace at the end of each line of code. Same pattern in both. Surely evidence of copying. On a larger piece of code, correlation of random whitespace at line ends would be irrefutable evidence of a shared origin. Now aside from the obvious weaknesses: e.g. visible or obvious in some editors, easily removed, I was wondering if it was worth deploying something like this in my open source project. My industry has a history of companies ripping off open source projects.

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• SVN: Working with branches using the same working copy

  - by uXuf

  We've just moved to SVN from CVS. We have a small team and everyone checks in code on the trunk and we have never ever used branches for development. We each have directories on a remote dev server with the codebase checked out. Each developer works on their own sandbox with an associated URL to pull up the app in a browser (something like the setup here: Trade-offs of local vs remote development workflows for a web development team). I've decided that for my current project, I'll use a branch because it would span multiple releases. I've already cut a branch out, but I am using the same directory as the one originally checked out (i.e. for the trunk). Since it's the same directory (or working copy) for both the branch and the trunk, if for e.g. a bug pops up in the app I switch to the trunk and commit the change there, and then switch back to my branch for my project development. My questions are: Is this a sane way to work with branches? Are there any pitfalls that I need to be aware of? What would be the optimal way to work with branches if separate working copies are out of the question? I haven't had issues yet as I have just started doing this way but all the tutorials/books/blog posts I have seen about branching with SVN imply working with different working copies (or perhaps I haven't come across an explanation of mixed working copies in plain English). I just don't want to be sorry three months down the road when its time to integrate the branch back to the trunk.

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• making control in user control visible=false on mouse over

  - by Mohan

  Hi Everybody, More I have this datalist in a user control i want when i keep mouse over "More", it should be invisible. it is working on .aspx page not on user control. How to do this. This control is placed on master page. Plz Help.

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• [Update] RedGate SQL Source Control and TFSPreview

  - by andyleonard

  31 Oct 2012 Update: SQL Source Control 3.1 is available! - Andy 12 Oct 2012 Update: The SQL Source Control 3.1 update is currently unavailable. I will provide additional updates when this version is re-released. - Andy I am excited that RedGate ’s SQL Source Control now supports connectivity to TFSPreview , Microsoft ’s cloud-based Application Life Cycle Management portal. Buck Woody ( Blog | @buckwoody ) and I have written about TFSPreview at SQLBlog already: Team Foundation Server (TFS) in the...(read more)

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• A design pattern for data binding an object (with subclasses) to asp.net user control

  - by Rohith Nair

  I have an abstract class called Address and I am deriving three classes ; HomeAddress, Work Address, NextOfKin address. My idea is to bind this to a usercontrol and based on the type of Address it should bind properly to the ASP.NET user control. My idea is the user control doesn't know which address it is going to present and based on the type it will parse accordingly. How can I design such a setup, based on the fact that, the user control can take any type of address and bind accordingly. I know of one method like :- Declare class objects for all the three types (Home,Work,NextOfKin). Declare an enum to hold these types and based on the type of this enum passed to user control, instantiate the appropriate object based on setter injection. As a part of my generic design, I just created a class structure like this :- I know I am missing a lot of pieces in design. Can anybody give me an idea of how to approach this in proper way.

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• Database source control

  - by Bojan Skrchevski

  Should database files(scripts etc.) be on source control? If so, what is the best method to keep it and update it there? Is there even a need for database files to be on source control since we can put it on a development server where everyone can use it and make changes to it if needed. But, then we can't get it back if someone messes it up. What approach is best used for databases on source-control?

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• What version control system can manage all aspects?

  - by Andy Canfield

  A few months ago I dug into Subversion and GIT and was disappointed. They handle SOURCE CODE fine but not other aspects. For example, a web site under version control needs to manage file/directory ownership, file/directory read & write access, Access Control Lists, timestamps, database contents. and external links. Is there a version control system that can do as perfect a reversion as reloading from a month-old backup?

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• Are There Realistic/Useful Solutions for Source Control for Ladder Logic Programs

  - by Steven A. Lowe

  Version control for ladder logic (LL) programs for programmable logic controllers (PLCs) seems to be virtually non-existent. It may be because LL is a visual language and tends to be stored in binary files, or it may be because source code control hasn't "caught on" in process control engineering circles - or perhaps my Google-Fu is weak tonight. Do you know of any realistic and useful solutions for version control for such systems? Definitions: realistic = changes to the programs are tracked by user and subject to reversion and merges useful = the system integrates with visual LL designers, is not limited to LL from a single PLC manufacturer, and does not cost a ridiculous amount of money? Note: I have heard of people using SVN or Mercurial et al to track the binary files, but I don't think the diff/merge capabilities would display readable differences.

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• Choosing the right version control system for .NET projects [closed]

  - by madxpol

  I'm getting ready for my first "bigger" .NET project (ASP.NET MVC 3/4) on which I'm going to lead another 2 programmers and right now I'm choosing the right version control system for the job (plus I'm gonna use it for my future development too). My problem is that I did't use any version control system before, so I would like it to have as fast learning curve and intuitive merging as possible. So far I quickly looked at VisualSVN (I like the Visual Studio integration in it), but I'm reading everywhere how Git is awesome and dunno which one to choose (not limited to these two).. Maybe I'm ovethinking this but I like when everything goes smoothly:) I'd like to hear some opinions from people who used multiple version control systems (preferably on VS projects) what do you think is the less complicated and effective version control system for such a use (one to 5 man projects)?

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