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• Ask How-To Geek: Learning the Office Ribbon, Booting to USB with an Old BIOS, and Snapping Windows

  - by Jason Fitzpatrick

  You’ve got questions and we’ve got answers. Today we highlight how to master the new Office interface, USB boot a computer with outdated BIOS, and snap windows to preset locations. Learning the New Office Ribbon Dear How-To Geek, I feel silly asking this (in light of how long the new Office interface has been out) but my company finally got around to upgrading from Windows XP and Office 2000 so the new interface it totally new to me. Can you recommend any resources for quickly learning the Office ribbon and the new changes? I feel completely lost after two decades of the old Office interface. Help! Sincerely, Where the Hell is Everything? Dear Where the Hell, We think most people were with you at some point in the last few years. “Where the hell is…” could possibly be the slogan for the new ribbon interface. You could browse through some of the dry tutorials online or even get a weighty book on the topic but the best way to learn something new is to get hands on. Ribbon Hero turns learning the new Office features and ribbon layout into a game. It’s no vigorous round of Team Fortress mind you, but it’s significantly more fun than reading a training document. Check out how to install and configure Ribbon Hero here. You’ll be teaching your coworkers new tricks in no time. Boot via USB with an Old BIOS Dear How-To Geek, I’m trying to repurpose some old computers by updating them with lightweight Linux distros but the BIOS on most of the machines is ancient and creaky. How ancient? It doesn’t even support booting from a USB device! I have a large flash drive that I’ve turned into a master installation tool for jobs like this but I can’t use it. The computers in question have USB ports; they just aren’t recognized during the boot process. What can I do? USB Bootin’ in Boise Dear USB Bootin’, It’s great you’re working to breathe life into old hardware! You’ve run into one of the limitations of older BIOSes, USB was around but nobody was thinking about booting off of it. Fortunately if you have a computer old enough to have that kind of BIOS it’s likely to also has a floppy drive or a CDROM drive. While you could make a bootable CDROM for your application we understand that you want to keep using the master USB installer you’ve made. In light of that we recommend PLoP Boot Manager. Think of it like a boot manager for your boot manager. Using it you can create a bootable floppy or CDROM that will enable USB booting of your master USB drive. Make a CD and a floppy version and you’ll have everything in your toolkit you need for future computer refurbishing projects. Read up on creating bootable media with PLoP Boot Manager here. Snapping Windows to Preset Coordinates Dear How-To Geek, Once upon a time I had a company laptop that came with a little utility that snapped windows to preset areas of the screen. This was long before the snap-to-side features in Windows 7. You could essentially configure your screen into a grid pattern of your choosing and then windows would neatly snap into those grids. I have no idea what it was called or if was anymore than a gimmick from the computer manufacturer, but I’d really like to have it on my new computer! Bend and Snap in San Francisco, Dear Bend and Snap, If we had to guess, we’d guess your company must have had a set of laptops from Acer as the program you’re describing sounds exactly like Acer GridVista. Fortunately for you the application was extremely popular and Acer released it independently of their hardware. If, by chance, you’ve since upgraded to a multiple monitor setup the app even supports multiple monitors—many of the configurations are handy for arranging IM windows and other auxiliary communication tools. Check out our guide to installing and configuring Acer GridVista here for more information. Have a question you want to put before the How-To Geek staff? Shoot us an email at [email protected] and then keep an eye out for a solution in the Ask How-To Geek column. Latest Features How-To Geek ETC How to Upgrade Windows 7 Easily (And Understand Whether You Should) The How-To Geek Guide to Audio Editing: Basic Noise Removal Install a Wii Game Loader for Easy Backups and Fast Load Times The Best of CES (Consumer Electronics Show) in 2011 The Worst of CES (Consumer Electronics Show) in 2011 HTG Projects: How to Create Your Own Custom Papercraft Toy Download the New Year in Japan Windows 7 Theme from Microsoft Once More Unto the Breach – Facebook Apps Can Now Access Your Address and Phone Number Dial Zero Speeds You Through Annoying Customer Service Menus Complete Dropquest 2011 and Receive Free Dropbox Storage Desktop Computer versus Laptop Wallpaper The Kids Have No Idea What Old Tech Is [Video]

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• Using Unity – Part 3

  - by nmarun

  The previous blog was about registering and invoking different types dynamically. In this one I’d like to show how Unity manages/disposes the instances – say hello to Lifetime Managers. When a type gets registered, either through the config file or when RegisterType method is explicitly called, the default behavior is that the container uses a transient lifetime manager. In other words, the unity container creates a new instance of the type when Resolve or ResolveAll method is called. Whereas, when you register an existing object using the RegisterInstance method, the container uses a container controlled lifetime manager - a singleton pattern. It does this by storing the reference of the object and that means so as long as the container is ‘alive’, your registered instance does not go out of scope and will be disposed only after the container either goes out of scope or when the code explicitly disposes the container. Let’s see how we can use these and test if something is a singleton or a transient instance. Continuing on the same solution used in the previous blogs, I have made the following changes: First is to add typeAlias elements for TransientLifetimeManager type: 1: <typeAlias alias="transient" type="Microsoft.Practices.Unity.TransientLifetimeManager, Microsoft.Practices.Unity"/> You then need to tell what type(s) you want to be transient by nature: 1: <type type="IProduct" mapTo="Product2"> 2: <lifetime type="transient" /> 3: </type> 4: <!--<type type="IProduct" mapTo="Product2" />--> The lifetime element’s type attribute matches with the alias attribute of the typeAlias element. Now since ‘transient’ is the default behavior, you can have a concise version of the same as line 4 shows. Also note that I’ve changed the mapTo attribute from ‘Product’ to ‘Product2’. I’ve done this to help understand the transient nature of the instance of the type Product2. By making this change, you are basically saying when a type of IProduct needs to be resolved, Unity should create an instance of Product2 by default. 1: public string WriteProductDetails() 2: { 3: return string.Format("Name: {0}<br/>Category: {1}<br/>Mfg Date: {2}<br/>Hash Code: {3}", 4: Name, Category, MfgDate.ToString("MM/dd/yyyy hh:mm:ss tt"), GetHashCode()); 5: } Again, the above change is purely for the purpose of making the example more clear to understand. The display will show the full date and also displays the hash code of the current instance. The GetHashCode() method returns an integer when an instance gets created – a new integer for every instance. When you run the application, you’ll see something like the below: Now when you click on the ‘Get Product2 Instance’ button, you’ll see that the Mfg Date (which is set in the constructor) and the Hash Code are different from the one created on page load. This proves to us that a new instance is created every single time. To make this a singleton, we need to add a type alias for the ContainerControlledLifetimeManager class and then change the type attribute of the lifetime element to singleton. 1: <typeAlias alias="singleton" type="Microsoft.Practices.Unity.ContainerControlledLifetimeManager, Microsoft.Practices.Unity"/> 2: ... 3: <type type="IProduct" mapTo="Product2"> 4: <lifetime type="singleton" /> 5: </type> Running the application now gets me the following output: Click on the button below and you’ll see that the Mfg Date and the Hash code remain unchanged => the unity container is storing the reference the first time it is created and then returns the same instance every time the type needs to be resolved. Digging more deeper into this, Unity provides more than the two lifetime managers. ExternallyControlledLifetimeManager – maintains a weak reference to type mappings and instances. Unity returns the same instance as long as the some code is holding a strong reference to this instance. For this, you need: 1: <typeAlias alias="external" type="Microsoft.Practices.Unity.ExternallyControlledLifetimeManager, Microsoft.Practices.Unity"/> 2: ... 3: <type type="IProduct" mapTo="Product2"> 4: <lifetime type="external" /> 5: </type> PerThreadLifetimeManager – Unity returns a unique instance of an object for each thread – so this effectively is a singleton behavior on a  per-thread basis. 1: <typeAlias alias="perThread" type="Microsoft.Practices.Unity.PerThreadLifetimeManager, Microsoft.Practices.Unity"/> 2: ... 3: <type type="IProduct" mapTo="Product2"> 4: <lifetime type="perThread" /> 5: </type> One thing to note about this is that if you use RegisterInstance method to register an existing object, this instance will be returned for every thread, making this a purely singleton behavior. Needless to say, this type of lifetime management is useful in multi-threaded applications (duh!!). I hope this blog provided some basics on lifetime management of objects resolved in Unity and in the next blog, I’ll talk about Injection. Please see the code used here.

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• Command /usr/bin/ codesign failed with exit code 1

  - by sarmenhba

  i was playing with the keychain certificates i wanted to remove them all and do it all again so that i learn how to do it. i have a simple app it worked perfectly before i started playing with the certificates so the code is fine. when i tried to compile my app to sent it to my iphone device it would give the error you see in the title. i looked at the log and here is what i see: Build Untitled of project Untitled with configuration Debug CodeSign build/Debug-iphoneos/Untitled.app cd /Users/sarmenhb/Desktop/myapp/Untitled setenv IGNORE_CODESIGN_ALLOCATE_RADAR_7181968 /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /usr/bin/codesign -f -s "iPhone Developer: sarm bo (2ZDTN5FTAL)" --resource-rules=/Users/sarmenhb/Desktop/myapp/Untitled/build/Debug-iphoneos/Untitled.app/ResourceRules.plist --entitlements /Users/sarmenhb/Desktop/myapp/Untitled/build/Untitled.build/Debug-iphoneos/Untitled.build/Untitled.xcent /Users/sarmenhb/Desktop/myapp/Untitled/build/Debug-iphoneos/Untitled.app iPhone Developer: sarm bo (2ZDTN5FTAL): no identity found Command /usr/bin/codesign failed with exit code 1 how do i fix this?

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• 1>Project : error PRJ0003 : Error spawning 'rc.exe'.

  - by user320950

  1Project : error PRJ0003 : Error spawning 'rc.exe'.. this is the error i get when i try to run this small practice program of reading and writing files which i cant do because of the reason of me not being able to get the files to open correctly. i use microsoft visual c++ 2008 and i have used the file path to try to open the file as well and i cant can someone help? #include <iostream> #include <fstream> using namespace std; int main () { ifstream infile; ofstream myfile; infile.open("ex.txt"); myfile.open ("example.txt"); myfile.close(); return 0; }

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• C# How to get the current project directory or the bin directory and move a few level up?

  - by melaos

  Hi there, I have an ASP.Net MVC app, and i have some xsl files inside of the Content directory. I've try a few methods to get directory dynamically buy keep on coming short. So how do i get the directory to point to the Content/xsl folder? the closest that i came to was with this: this.GetType().Assembly.CodeBase which only returns the project DLL, but i can't figure out how to move up a few levels from there or what .net library to use to navigate around the path. there's no ../.. :( Basically i want to navigate to the Content/xsl folder which is at the same level of the Bin directory. Any idea? thanks.

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• Parallelism in .NET – Part 12, More on Task Decomposition

  - by Reed

  Many tasks can be decomposed using a Data Decomposition approach, but often, this is not appropriate.  Frequently, decomposing the problem into distinctive tasks that must be performed is a more natural abstraction. However, as I mentioned in Part 1, Task Decomposition tends to be a bit more difficult than data decomposition, and can require a bit more effort.  Before we being parallelizing our algorithm based on the tasks being performed, we need to decompose our problem, and take special care of certain considerations such as ordering and grouping of tasks. Up to this point in this series, I’ve focused on parallelization techniques which are most appropriate when a problem space can be decomposed by data.  Using PLINQ and the Parallel class, I’ve shown how problem spaces where there is a collection of data, and each element needs to be processed, can potentially be parallelized. However, there are many other routines where this is not appropriate.  Often, instead of working on a collection of data, there is a single piece of data which must be processed using an algorithm or series of algorithms.  Here, there is no collection of data, but there may still be opportunities for parallelism. As I mentioned before, in cases like this, the approach is to look at your overall routine, and decompose your problem space based on tasks.  The idea here is to look for discrete “tasks,” individual pieces of work which can be conceptually thought of as a single operation. Let’s revisit the example I used in Part 1, an application startup path.  Say we want our program, at startup, to do a bunch of individual actions, or “tasks”.  The following is our list of duties we must perform right at startup: Display a splash screen Request a license from our license manager Check for an update to the software from our web server If an update is available, download it Setup our menu structure based on our current license Open and display our main, welcome Window Hide the splash screen The first step in Task Decomposition is breaking up the problem space into discrete tasks. This, naturally, can be abstracted as seven discrete tasks.  In the serial version of our program, if we were to diagram this, the general process would appear as: These tasks, obviously, provide some opportunities for parallelism.  Before we can parallelize this routine, we need to analyze these tasks, and find any dependencies between tasks.  In this case, our dependencies include: The splash screen must be displayed first, and as quickly as possible. We can’t download an update before we see whether one exists. Our menu structure depends on our license, so we must check for the license before setting up the menus. Since our welcome screen will notify the user of an update, we can’t show it until we’ve downloaded the update. Since our welcome screen includes menus that are customized based off the licensing, we can’t display it until we’ve received a license. We can’t hide the splash until our welcome screen is displayed. By listing our dependencies, we start to see the natural ordering that must occur for the tasks to be processed correctly. The second step in Task Decomposition is determining the dependencies between tasks, and ordering tasks based on their dependencies. Looking at these tasks, and looking at all the dependencies, we quickly see that even a simple decomposition such as this one can get quite complicated.  In order to simplify the problem of defining the dependencies, it’s often a useful practice to group our tasks into larger, discrete tasks.  The goal when grouping tasks is that you want to make each task “group” have as few dependencies as possible to other tasks or groups, and then work out the dependencies within that group.  Typically, this works best when any external dependency is based on the “last” task within the group when it’s ordered, although that is not a firm requirement.  This process is often called Grouping Tasks.  In our case, we can easily group together tasks, effectively turning this into four discrete task groups: 1. Show our splash screen – This needs to be left as its own task.  First, multiple things depend on this task, mainly because we want this to start before any other action, and start as quickly as possible. 2. Check for Update and Download the Update if it Exists - These two tasks logically group together.  We know we only download an update if the update exists, so that naturally follows.  This task has one dependency as an input, and other tasks only rely on the final task within this group. 3. Request a License, and then Setup the Menus – Here, we can group these two tasks together.  Although we mentioned that our welcome screen depends on the license returned, it also depends on setting up the menu, which is the final task here.  Setting up our menus cannot happen until after our license is requested.  By grouping these together, we further reduce our problem space. 4. Display welcome and hide splash - Finally, we can display our welcome window and hide our splash screen.  This task group depends on all three previous task groups – it cannot happen until all three of the previous groups have completed. By grouping the tasks together, we reduce our problem space, and can naturally see a pattern for how this process can be parallelized.  The diagram below shows one approach: The orange boxes show each task group, with each task represented within.  We can, now, effectively take these tasks, and run a large portion of this process in parallel, including the portions which may be the most time consuming.  We’ve now created two parallel paths which our process execution can follow, hopefully speeding up the application startup time dramatically. The main point to remember here is that, when decomposing your problem space by tasks, you need to: Define each discrete action as an individual Task Discover dependencies between your tasks Group tasks based on their dependencies Order the tasks and groups of tasks

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• WPF Combobox textbox not updating when binding changes.

  - by WillH

  I have a WPF CombBox as follows: <ComboBox ItemsSource="{Binding Source={StaticResource myList}}" SelectedItem="{Binding Path=mySelectedItem}" /> The problem I have is that when the bound value changes, the selected value in the combobox's textbox does not update. (Note - the values in the combobox list do update). I am using MVVM so I can detect in the view model when the binding changes and call a property changed event and this is updating the combobox, but not the value displayed within the textbox. I think this could be done in the template of the combobox - somehow make the textbox be bound to the selecteditem of the combobox, or always update when it updates? I don't know how to do this though so any advice would be most appreciated.

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• Distributing IronPython applications - how to detect the location of ipyw.exe

  - by Kragen

  I'm thinking of developing a small application using Iron python, however I want to distribute my app to non-techies and so ideally I want to be able to give them a standard shortcut to my application along with the instructions that they need to install IronPython first. If possible I even want my shortcut to detect if IronPython is not present and display a suitable warning if this is the case (which I can do using a simple VbScript) The trouble is that IronPython doesn't place itself in the %PATH% environment variable, and so if IronPython is installed to a nonstandard location my shortcut don't work. Now I could also tell my users "If you install IronPython to a different location you need to go and edit this shortcut and...", but this is all getting far too technical for my target audience. Is there any foolproof way of distributing my IronPython dependent app?

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• Using Simple XML and getting NoClassDefFoundError in Android

  - by Berat Onur Ersen

  I'm trying to use Simple XML to convert my java objects to XML format in my Android application. I'm getting NoClassDefFoundError at line Serializer serializer = new Persister(); java.lang.NoClassDefFoundError: org.simpleframework.xml.core.Persister I have simple-xml-2.6.1.jar in project class path and when I got NoClassDefFoundError I also put these 3 jars in classpath stax-1.2.0.jar stax-api-1.0.1.jar xpp3-1.1.3_8.jar but made no use. Still having NoClassDefFoundError. Any kind of help will be appreciated.Thank you.

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• Parallelism in .NET – Part 13, Introducing the Task class

  - by Reed

  Once we’ve used a task-based decomposition to decompose a problem, we need a clean abstraction usable to implement the resulting decomposition.  Given that task decomposition is founded upon defining discrete tasks, .NET 4 has introduced a new API for dealing with task related issues, the aptly named Task class. The Task class is a wrapper for a delegate representing a single, discrete task within your decomposition.  We will go into various methods of construction for tasks later, but, when reduced to its fundamentals, an instance of a Task is nothing more than a wrapper around a delegate with some utility functionality added.  In order to fully understand the Task class within the new Task Parallel Library, it is important to realize that a task really is just a delegate – nothing more.  In particular, note that I never mentioned threading or parallelism in my description of a Task.  Although the Task class exists in the new System.Threading.Tasks namespace: Tasks are not directly related to threads or multithreading. Of course, Task instances will typically be used in our implementation of concurrency within an application, but the Task class itself does not provide the concurrency used.  The Task API supports using Tasks in an entirely single threaded, synchronous manner. Tasks are very much like standard delegates.  You can execute a task synchronously via Task.RunSynchronously(), or you can use Task.Start() to schedule a task to run, typically asynchronously.  This is very similar to using delegate.Invoke to execute a delegate synchronously, or using delegate.BeginInvoke to execute it asynchronously. The Task class adds some nice functionality on top of a standard delegate which improves usability in both synchronous and multithreaded environments. The first addition provided by Task is a means of handling cancellation via the new unified cancellation mechanism of .NET 4.  If the wrapped delegate within a Task raises an OperationCanceledException during it’s operation, which is typically generated via calling ThrowIfCancellationRequested on a CancellationToken, or if the CancellationToken used to construct a Task instance is flagged as canceled, the Task’s IsCanceled property will be set to true automatically.  This provides a clean way to determine whether a Task has been canceled, often without requiring specific exception handling. Tasks also provide a clean API which can be used for waiting on a task.  Although the Task class explicitly implements IAsyncResult, Tasks provide a nicer usage model than the traditional .NET Asynchronous Programming Model.  Instead of needing to track an IAsyncResult handle, you can just directly call Task.Wait() to block until a Task has completed.  Overloads exist for providing a timeout, a CancellationToken, or both to prevent waiting indefinitely.  In addition, the Task class provides static methods for waiting on multiple tasks – Task.WaitAll and Task.WaitAny, again with overloads providing time out options.  This provides a very simple, clean API for waiting on single or multiple tasks. Finally, Tasks provide a much nicer model for Exception handling.  If the delegate wrapped within a Task raises an exception, the exception will automatically get wrapped into an AggregateException and exposed via the Task.Exception property.  This exception is stored with the Task directly, and does not tear down the application.  Later, when Task.Wait() (or Task.WaitAll or Task.WaitAny) is called on this task, an AggregateException will be raised at that point if any of the tasks raised an exception.  For example, suppose we have the following code: Task taskOne = new Task( () => { throw new ApplicationException("Random Exception!"); }); Task taskTwo = new Task( () => { throw new ArgumentException("Different exception here"); }); // Start the tasks taskOne.Start(); taskTwo.Start(); try { Task.WaitAll(new[] { taskOne, taskTwo }); } catch (AggregateException e) { Console.WriteLine(e.InnerExceptions.Count); foreach (var inner in e.InnerExceptions) Console.WriteLine(inner.Message); } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Here, our routine will print: 2 Different exception here Random Exception! Note that we had two separate tasks, each of which raised two distinctly different types of exceptions.  We can handle this cleanly, with very little code, in a much nicer manner than the Asynchronous Programming API.  We no longer need to handle TargetInvocationException or worry about implementing the Event-based Asynchronous Pattern properly by setting the AsyncCompletedEventArgs.Error property.  Instead, we just raise our exception as normal, and handle AggregateException in a single location in our calling code.

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• Unable to attach "AdventureWorks2008" Sample Database to a named Instance in SQL Server 2008

  - by uzorick

  First of all "Northwind" and "AdventureWorksDW2008" databases attached without problem, but "AdventureWorks2008" fails with the following error. // Msg 5120, Level 16, State 105, Line 1 Unable to open the physical file "C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\DATA\Documents". Operating system error 2: "2(The system cannot find the file specified.)". Msg 5105, Level 16, State 14, Line 1 A file activation error occurred. The physical file name 'C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\DATA\Documents' may be incorrect. Diagnose and correct additional errors, and retry the operation. Msg 1813, Level 16, State 2, Line 1 Could not open new database 'AdventureWorks2008'. CREATE DATABASE is aborted. // PS: I did not use the default database instance "MSSQLSERVER" during install, so Where is it finding this path "C:...\MSSQL10.MSSQLSERVER...\Documents"?

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• Android "application stopped unexpectedly" - google Hello MapView Tutoria

  - by Cookie

  Hi, I'm trying the Hello MapView Tutorial at the moment. Whe I launch the program in the emulator, I get a huge number of errors (none of the exceptions seems to be related with lines in my code). The emulator window tells the program "stopped unexpectedly". Can anybody tell me which is the key line in the error output? What do I have to change? 05-02 15:04:57.195: ERROR/vold(26): Error opening switch name path '/sys/class/switch/test2' (No such file or directory) 05-02 15:04:57.195: ERROR/vold(26): Error bootstrapping switch '/sys/class/switch/test2' (No such file or directory) 05-02 15:04:57.195: ERROR/vold(26): Error opening switch name path '/sys/class/switch/test' (No such file or directory) 05-02 15:04:57.195: ERROR/vold(26): Error bootstrapping switch '/sys/class/switch/test' (No such file or directory) 05-02 15:05:10.659: ERROR/MemoryHeapBase(51): error opening /dev/pmem: No such file or directory 05-02 15:05:10.659: ERROR/SurfaceFlinger(51): Couldn't open /sys/power/wait_for_fb_sleep or /sys/power/wait_for_fb_wake 05-02 15:05:10.699: ERROR/libEGL(51): couldn't load <libhgl.so> library (Cannot load library: load_library[984]: Library 'libhgl.so' not found) 05-02 15:05:11.403: ERROR/libEGL(62): couldn't load <libhgl.so> library (Cannot load library: load_library[984]: Library 'libhgl.so' not found) 05-02 15:05:14.775: ERROR/BatteryService(51): Could not open '/sys/class/power_supply/usb/online' 05-02 15:05:14.775: ERROR/BatteryService(51): Could not open '/sys/class/power_supply/battery/batt_vol' 05-02 15:05:14.775: ERROR/BatteryService(51): Could not open '/sys/class/power_supply/battery/batt_temp' 05-02 15:05:15.148: ERROR/EventHub(51): could not get driver version for /dev/input/mouse0, Not a typewriter 05-02 15:05:15.148: ERROR/EventHub(51): could not get driver version for /dev/input/mice, Not a typewriter 05-02 15:05:15.282: ERROR/System(51): Failure starting core service 05-02 15:05:15.282: ERROR/System(51): java.lang.SecurityException 05-02 15:05:15.282: ERROR/System(51): at android.os.BinderProxy.transact(Native Method) 05-02 15:05:15.282: ERROR/System(51): at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146) 05-02 15:05:15.282: ERROR/System(51): at android.os.ServiceManager.addService(ServiceManager.java:72) 05-02 15:05:15.282: ERROR/System(51): at com.android.server.ServerThread.run(SystemServer.java:162) 05-02 15:05:15.302: ERROR/AndroidRuntime(51): Crash logging skipped, no checkin service 05-02 15:05:17.012: ERROR/LockPatternKeyguardView(51): Failed to bind to GLS while checking for account 05-02 15:05:21.795: ERROR/ActivityThread(100): Failed to find provider info for com.google.settings 05-02 15:05:21.819: ERROR/ActivityThread(100): Failed to find provider info for com.google.settings 05-02 15:05:25.872: ERROR/ApplicationContext(51): Couldn't create directory for SharedPreferences file shared_prefs/wallpaper-hints.xml 05-02 15:05:28.923: ERROR/vold(26): Cannot start volume '/sdcard' (volume is not bound) 05-02 15:05:26.879: ERROR/ActivityThread(97): Failed to find provider info for android.server.checkin 05-02 15:05:30.211: ERROR/ActivityThread(97): Failed to find provider info for android.server.checkin 05-02 15:05:30.430: ERROR/ActivityThread(97): Failed to find provider info for android.server.checkin 05-02 15:05:32.463: ERROR/MediaPlayerService(30): Couldn't open fd for content://settings/system/notification_sound 05-02 15:05:32.489: ERROR/MediaPlayer(51): Unable to to create media player 05-02 15:05:34.783: ERROR/ActivityThread(51): Failed to find provider info for com.google.settings 05-02 15:05:34.783: ERROR/ActivityThread(51): Failed to find provider info for com.google.settings 05-02 15:05:35.359: ERROR/AndroidRuntime(201): Uncaught handler: thread main exiting due to uncaught exception 05-02 15:05:35.395: ERROR/AndroidRuntime(201): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{org.diretto.client.smartphone.android/org.diretto.client.smartphone.android.ShowMap}: java.lang.ClassNotFoundException: org.diretto.client.smartphone.android.ShowMap in loader dalvik.system.PathClassLoader@4376af90 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2324) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.os.Handler.dispatchMessage(Handler.java:99) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.os.Looper.loop(Looper.java:123) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.main(ActivityThread.java:4203) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at java.lang.reflect.Method.invokeNative(Native Method) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at java.lang.reflect.Method.invoke(Method.java:521) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at dalvik.system.NativeStart.main(Native Method) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): Caused by: java.lang.ClassNotFoundException: org.diretto.client.smartphone.android.ShowMap in loader dalvik.system.PathClassLoader@4376af90 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at java.lang.ClassLoader.loadClass(ClassLoader.java:573) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at java.lang.ClassLoader.loadClass(ClassLoader.java:532) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.Instrumentation.newActivity(Instrumentation.java:1097) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2316) 05-02 15:05:35.395: ERROR/AndroidRuntime(201): ... 11 more 05-02 15:05:35.527: ERROR/dalvikvm(201): Unable to open stack trace file '/data/anr/traces.txt': Permission denied

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• WPF DataGrid DataGridHyperlinkColumn bound to Uri

  - by MicMit

  No problem when binding to a property of string type ( "http://something.com" ). However , I seem to have seen in old examples direct binding to Uri property. <dg:DataGridHyperlinkColumn IsReadOnly="True" Header="Uri" Binding="{Binding Path=NavigURI}" /> NavigURI is Uri . More recent docs seem to require a converter <DataGridHyperlinkColumn Header="Email" Binding="{Binding Email}" ContentBinding="{Binding Email, Converter={StaticResource EmailConverter}}" /> I tried with a converter also, but in both cases with or without converter column is empty. Debugging showed that value passed to "Convert" method is always null. My question : if for any reason I want binding to Uri property , is it feasible for the latest DataGrid from Codeplex ?

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• Fancy dynamic list in Android: TableLayout vs ListView

  - by Ralkie

  There is a requirement to have not-so-trivial dynamic list, each record of which consists of several columns (texts, buttons). It should look something like: Text11 Text12 Button1 Button2 Text21 Text22 Button1 Button2 ... At first obvious way to accomplish that seemed to be TableLayout. I was expecting to have layout/styling data specified in res/layout/*.xml and to populate it with some dataset from java code (as with ListView, for which its possible to specify TextView of item in *.xml and bind it to some array using ArrayAdapter). But after playing for a while, all I found to be possible is fully populating TableLayout programatically. Still, creating TableRow by TableRow and setting layout attributes directly in java code doesn't seem elegant enough. So the questions are: Am I at the right path? Is TableLayout really best View to accomplish that? Maybe it's more appropriate to extend ListView or something else to meet such requirements? Is it possible to have TableLayout/TableRow template specified in *.xml and data bound to this template in java side?

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• MSBuild cannot find SGen when compiling a solution

  - by Jaxidian

  I've looked at several other SGen-related questions on here and either their answers don't apply or their answers don't fix this for me. I have installed several SDKs to fix this issue with no luck. Reference types should not be changed since this is the only place this is a problem. Once suggestion is to put SGen.exe into the C:\Windows\Microsoft.NET\Framework\v3.5 folder, but that's not been done on the box where this is not a problem. In this scenario, SGen.exe actually exists and is right where it's supposed to be, but MSBuild still is having issues with finding it for some reason! Background: We have a NAnt script that automates our builds. In this scenario, NAnt is calling MSBuild and MSBuild is generating the error claiming to be unable to find SGen. The project is .NET 3.5-based. I have my primary dev environment (64-bit Vista Ultimate) where the script works perfectly and I am attempting to duplicate it in a VM (64-bit Win 7 Ultimate). I THINK I have everything to the point where I should be good-to-go but this fails on the Win7 box (works perfectly on the Vista box). I have done some comparisons between the two boxes and they both look identical in this regard, but it still fails. For example, the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework's sdkInstallRootv2.0 value is set to C:\Program Files\Microsoft.NET\SDK\v2.0 64bit\ on both machines. In both machines, SGen.exe is in that path's bin subdirectory. NAnt Script: <target name="report-installer" depends="fail-if-environment-not-set"> <exec program="MSBuild.exe" basedir="${framework35.directory}"> <arg value="${tools.directory.current}\ReportInstaller\ReportInstaller.sln" /> <arg value="/p:Configuration=${buildconfiguration.current}" /> </exec> </target> The error message I get is this: report-installer: [exec] Microsoft (R) Build Engine Version 3.5.30729.4926 [exec] [Microsoft .NET Framework, Version 2.0.50727.4927] [exec] Copyright (C) Microsoft Corporation 2007. All rights reserved. [exec] [exec] Build started 4/8/2010 11:28:23 AM. [exec] Project "C:\Projects\Production\Tools\ReportInstaller\ReportInstaller.sln" on node 0 (default targets). [exec] Building solution configuration "Release|Any CPU". [exec] Project "C:\Projects\Production\Tools\ReportInstaller\ReportInstaller.sln" (1) is building "C:\Projects\Production\Tools\ReportInstaller\ReportInstaller.csproj" (2) on node 0 (default targets). [exec] Could not locate the .NET Framework SDK. The task is looking for the path to the .NET Framework SDK at the location specified in the SDKInstallRootv2.0 value of the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework. You may be able to solve the problem by doing one of the following: 1.) Install the .NET Framework SDK. 2.) Manually set the above registry key to the correct location. [exec] CoreCompile: [exec] Skipping target "CoreCompile" because all output files are up-to-date with respect to the input files. [exec] C:\Windows\Microsoft.NET\Framework\v2.0.50727\Microsoft.Common.targets(1902,9): error MSB3091: Task failed because "sgen.exe" was not found, or the .NET Framework SDK v2.0 is not installed. The task is looking for "sgen.exe" in the "bin" subdirectory beneath the location specified in the SDKInstallRootv2.0 value of the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework. You may be able to solve the problem by doing one of the following: 1.) Install the .NET Framework SDK v2.0. 2.) Manually set the above registry key to the correct location. 3.) Pass the correct location into the "ToolPath" parameter of the task. [exec] Done Building Project "C:\Projects\Production\Tools\ReportInstaller\ReportInstaller.csproj" (default targets) -- FAILED. [exec] Done Building Project "C:\Projects\Production\Tools\ReportInstaller\ReportInstaller.sln" (default targets) -- FAILED. [exec] [exec] Build FAILED. [exec] [exec] "C:\Projects\Production\Tools\ReportInstaller\ReportInstaller.sln" (default target) (1) -> [exec] "C:\Projects\Production\Tools\ReportInstaller\ReportInstaller.csproj" (default target) (2) -> [exec] (GenerateSerializationAssemblies target) -> [exec] C:\Windows\Microsoft.NET\Framework\v2.0.50727\Microsoft.Common.targets(1902,9): error MSB3091: Task failed because "sgen.exe" was not found, or the .NET Framework SDK v2.0 is not installed. The task is looking for "sgen.exe" in the "bin" subdirectory beneath the location specified in the SDKInstallRootv2.0 value of the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework. You may be able to solve the problem by doing one of the following: 1.) Install the .NET Framework SDK v2.0. 2.) Manually set the above registry key to the correct location. 3.) Pass the correct location into the "ToolPath" parameter of the task. [exec] [exec] 0 Warning(s) [exec] 1 Error(s) [exec] [exec] Time Elapsed 00:00:00.24 [call] C:\Projects\Production\Source\reports.build(15,4): [call] External Program Failed: C:\Windows\Microsoft.NET\Framework\v3.5\MSBuild.exe (return code was 1) What am I doing wrong here that is causing MSBuild to STILL be unable to find SGen?

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• SQL Server 2008 to SQL Server 2008

  - by Sakhawat Ali

  I have an MDF and LDF file of SQL Server 2005. i attached it with SQL Server 2008 and did some change in data. now when i attached it back to sql server 2005 Express Edition it gives version error. The database 'E:\DB\JOBPERS.MDF' cannot be opened because it is version 655. This server supports version 612 and earlier. A downgrade path is not supported. Could not open new database 'E:\DB\JOBPERS.MDF'. CREATE DATABASE is aborted. An attempt to attach an auto-named database for file E:\DB\Jobpers.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.

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• Database model for keeping track of likes/shares/comments on blog posts over time

  - by gage

  My goal is to keep track of the popular posts on different blog sites based on social network activity at any given time. The goal is not to simply get the most popular now, but instead find posts that are popular compared to other posts on the same blog. For example, I follow a tech blog, a sports blog, and a gossip blog. The tech blog gets waaay more readership than the other two blogs, so in raw numbers every post on the tech blog will always out number views on the other two. So lets say the average tech blog post gets 500 facebook likes and the other two get an average of 50 likes per post. Then when there is a sports blog post that has 200 fb likes and a gossip blog post with 300 while the tech blog posts today have 500 likes I want to highlight the sports and gossip blog posts (more likes than average vs tech blog with more # of likes but just average for the blog) The approach I am thinking of taking is to make an entry in a database for each blog post. Every x minutes (say every 15 minutes) I will check how many likes/shares/comments an entry has received on all the social networks (facebook, twitter, google+, linkeIn). So over time there will be a history of likes for each blog post, i.e post 1234 after 15 min: 10 fb likes, 4 tweets, 6 g+ after 30 min: 15 fb likes, 15 tweets, 10 g+ ... ... after 48 hours: 200 fb likes, 25 tweets, 15 g+ By keeping a history like this for each blog post I can know the average number of likes/shares/tweets at any give time interval. So for example the average number of fb likes for all blog posts 48hrs after posting is 50, and a particular post has 200 I can mark that as a popular post and feature/highlight it. A consideration in the design is to be able to easily query the values (likes/shares) for a specific time-frame, i.e. fb likes after 30min or tweets after 24 hrs in-order to compute averages with which to compare against (or should averages be stored in it's own table?) If this approach is flawed or could use improvement please let me know, but it is not my main question. My main question is what should a database scheme for storing this info look like? Assuming that the above approach is taken I am trying to figure out what a database schema for storing the likes over time would look like. I am brand new to databases, in doing some basic reading I see that it is advisable to make a 3NF database. I have come up with the following possible schema. Schema 1 DB Popular Posts Table: Post post_id ( primary key(pk) ) url title Table: Social Activity activity_id (pk) url (fk) type (i.e. facebook,twitter,g+) value timestamp This was my initial instinct (base on my very limited db knowledge). As far as I under stand this schema would be 3NF? I searched for designs of similar database model, and found this question on stackoverflow, http://stackoverflow.com/questions/11216080/data-structure-for-storing-height-and-weight-etc-over-time-for-multiple-users . The scenario in that question is similar (recording weight/height of users overtime). Taking the accepted answer for that question and applying it to my model results in something like: Schema 2 (same as above, but break down the social activity into 2 tables) DB Popular Posts Table: Post post_id (pk) url title Table: Social Measurement measurement_id (pk) post_id (fk) timestamp Table: Social stat stat_id (pk) measurement_id (fk) type (i.e. facebook,twitter,g+) value The advantage I see in schema 2 is that I will likely want to access all the values for a given time, i.e. when making a measurement at 30min after a post is published I will simultaneous check number of fb likes, fb shares, fb comments, tweets, g+, linkedIn. So with this schema it may be easier get get all stats for a measurement_id corresponding to a certain time, i.e. all social stats for post 1234 at time x. Another thought I had is since it doesn't make sense to compare number of fb likes with number of tweets or g+ shares, maybe it makes sense to separate each social measurement into it's own table? Schema 3 DB Popular Posts Table: Post post_id (pk) url title Table: fb_likes fb_like_id (pk) post_id (fk) timestamp value Table: fb_shares fb_shares_id (pk) post_id (fk) timestamp value Table: tweets tweets__id (pk) post_id (fk) timestamp value Table: google_plus google_plus_id (pk) post_id (fk) timestamp value As you can see I am generally lost/unsure of what approach to take. I'm sure this typical type of database problem (storing measurements overtime, i.e temperature statistic) that must have a common solution. Is there a design pattern/model for this, does it have a name? I tried searching for "database periodic data collection" or "database measurements over time" but didn't find anything specific. What would be an appropriate model to solve the needs of this problem?

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• Flash Player 10.1 crash on shared object access

  - by Simon

  Hi all, since updating my Flash Player plugin from 10 to 10.1, I'm seeing a weird crash when accessing shared objects. Flex Builder's debugger pops up and prints a stack trace like this: undefined at flash.net::SharedObject$/getLocal() at my.code::MyClass$/load()[/my/path/to/my/MyClass.as:27] (...) This happens when calling SharedObject.getLocal("someString") for the second time for the same string, though it doesn't always crash. When using another browser on the same machine (not configured as the preferred debugging browser in Flex Builder), Flash Player remains silent. The code is wrapped in a try/catch(Error) block which does not catch this error. I'm using Flex SDK 3.5 and Flex Builder 3 on Mac OS X 10.6.3. Has anyone else seen this? Thanks, Simon

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• OBJC_CLASS_$_MTSCRA", referenced from

  - by user1078841

  I was trying to make a sample code run download by the link http://www.magtek.com/support/software/downloads/sw/99510108.zip This is a card reader api ,here is a sample code.When I run this code I got the error: ld: warning: ignoring file /Users/gaurav.garg/Downloads/99510108/SampleCode/Lib/libMTSCRA.a, missing required architecture i386 in file Undefined symbols for architecture i386: "_OBJC_CLASS_$_MTSCRA", referenced from: objc-class-ref in MagTekDemoAppDelegate.o ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation) The class MTSCRA is only a header file,And the solution that I have cheked That we have to add the .m file in compiled source path of build build phase of target...but unfortunately I don't have the MTSCRA.m file.MTscra.h have the AudioToolBox and externalAccesory framework.

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• Optimized Image Loading in a UIScrollView

  - by Michael Gaylord

  I have a UIScrollView that has a set of images loaded side-by-side inside it. You can see an example of my app here: http://www.42restaurants.com. My problem comes in with memory usage. I want to lazy load the images as they are about to appear on the screen and unload images that aren't on screen. As you can see in the code I work out at a minimum which image I need to load and then assign the loading portion to an NSOperation and place it on an NSOperationQueue. Everything works great apart from a jerky scrolling experience. I don't know if anyone has any ideas as to how I can make this even more optimized, so that the loading time of each image is minimized or so that the scrolling is less jerky. - (void)scrollViewDidScroll:(UIScrollView *)scrollView{ [self manageThumbs]; } - (void) manageThumbs{ int centerIndex = [self centerThumbIndex]; if(lastCenterIndex == centerIndex){ return; } if(centerIndex >= totalThumbs){ return; } NSRange unloadRange; NSRange loadRange; int totalChange = lastCenterIndex - centerIndex; if(totalChange > 0){ //scrolling backwards loadRange.length = fabsf(totalChange); loadRange.location = centerIndex - 5; unloadRange.length = fabsf(totalChange); unloadRange.location = centerIndex + 6; }else if(totalChange < 0){ //scrolling forwards unloadRange.length = fabsf(totalChange); unloadRange.location = centerIndex - 6; loadRange.length = fabsf(totalChange); loadRange.location = centerIndex + 5; } [self unloadImages:unloadRange]; [self loadImages:loadRange]; lastCenterIndex = centerIndex; return; } - (void) unloadImages:(NSRange)range{ UIScrollView *scrollView = (UIScrollView *)[[self.view subviews] objectAtIndex:0]; for(int i = 0; i < range.length && range.location + i < [scrollView.subviews count]; i++){ UIView *subview = [scrollView.subviews objectAtIndex:(range.location + i)]; if(subview != nil && [subview isKindOfClass:[ThumbnailView class]]){ ThumbnailView *thumbView = (ThumbnailView *)subview; if(thumbView.loaded){ UnloadImageOperation *unloadOperation = [[UnloadImageOperation alloc] initWithOperableImage:thumbView]; [queue addOperation:unloadOperation]; [unloadOperation release]; } } } } - (void) loadImages:(NSRange)range{ UIScrollView *scrollView = (UIScrollView *)[[self.view subviews] objectAtIndex:0]; for(int i = 0; i < range.length && range.location + i < [scrollView.subviews count]; i++){ UIView *subview = [scrollView.subviews objectAtIndex:(range.location + i)]; if(subview != nil && [subview isKindOfClass:[ThumbnailView class]]){ ThumbnailView *thumbView = (ThumbnailView *)subview; if(!thumbView.loaded){ LoadImageOperation *loadOperation = [[LoadImageOperation alloc] initWithOperableImage:thumbView]; [queue addOperation:loadOperation]; [loadOperation release]; } } } } EDIT: Thanks for the really great responses. Here is my NSOperation code and ThumbnailView code. I tried a couple of things over the weekend but I only managed to improve performance by suspending the operation queue during scrolling and resuming it when scrolling is finished. Here are my code snippets: //In the init method queue = [[NSOperationQueue alloc] init]; [queue setMaxConcurrentOperationCount:4]; //In the thumbnail view the loadImage and unloadImage methods - (void) loadImage{ if(!loaded){ NSString *filename = [NSString stringWithFormat:@"%03d-cover-front", recipe.identifier, recipe.identifier]; NSString *directory = [NSString stringWithFormat:@"RestaurantContent/%03d", recipe.identifier]; NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:@"png" inDirectory:directory]; UIImage *image = [UIImage imageWithContentsOfFile:path]; imageView = [[ImageView alloc] initWithImage:image andFrame:CGRectMake(0.0f, 0.0f, 176.0f, 262.0f)]; [self addSubview:imageView]; [self sendSubviewToBack:imageView]; [imageView release]; loaded = YES; } } - (void) unloadImage{ if(loaded){ [imageView removeFromSuperview]; imageView = nil; loaded = NO; } } Then my load and unload operations: - (id) initWithOperableImage:(id<OperableImage>) anOperableImage{ self = [super init]; if (self != nil) { self.image = anOperableImage; } return self; } //This is the main method in the load image operation - (void)main { [image loadImage]; } //This is the main method in the unload image operation - (void)main { [image unloadImage]; }

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• visual studio 2010: The Breakpoint will not currently be hit: No symbols have been loaded for this d

  - by Grayson Mitchell

  I am using VS2010, and Silverlight 4. When I run my code the debugging does not work (I get the above error on my breakpoints. When I clean my solution a warning comes up saying that the system cannot find the file specified (a project dll). It is looking in the right path (..\debug), but there is no dll present. I started a new Silverlight 4 project, and get the same error. Sometime's the debugging does work (I am not sure if/what anything changed, but on one occasion I was surprised that my breakpoints worked. After changing one thing the breakpoints stopped working)

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• XCOPY to remote server

  - by Max

  In order to improve the deployment / build process of my ASP.NET app, I would like to make a .bat that builds the current solution in release mode xcopy the files to a remote server Creating a release build via command line is easy. But how can I xcopy the files to the remote server? I think I have to map the remote destination to a network drive (?). However I could not connect to the remote server, although I have enabled file sharing for the folder on the server. Maybe the firewall is blocking the request? Which port should I open? Or is there another solution? EDIT Thanks for all the answers so far, but I probably need a step by step guide on how to set up the folder sharing on the server. I shared the folder, I opened up port 445 so that I can connect to the server but still, I cant connect from my local machine to the server in order to map the network path to a system drive.

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• Using C# 4.0’s DynamicObject as a Stored Procedure Wrapper

  - by EltonStoneman

  [Source: http://geekswithblogs.net/EltonStoneman] Overview Ignoring the fashion, I still make a lot of use of DALs – typically when inheriting a codebase with an established database schema which is full of tried and trusted stored procedures. In the DAL a collection of base classes have all the scaffolding, so the usual pattern is to create a wrapper class for each stored procedure, giving typesafe access to parameter values and output. DAL calls then looks like instantiate wrapper-populate parameters-execute call:       using (var sp = new uspGetManagerEmployees())     {         sp.ManagerID = 16;         using (var reader = sp.Execute())         {             //map entities from the output         }     }   Or rolling it all into a fluent DAL call – which is nicer to read and implicitly disposes the resources:   This is fine, the wrapper classes are very simple to handwrite or generate. But as the codebase grows, you end up with a proliferation of very small wrapper classes: The wrappers don't add much other than encapsulating the stored procedure call and giving you typesafety for the parameters. With the dynamic extension in .NET 4.0 you have the option to build a single wrapper class, and get rid of the one-to-one stored procedure to wrapper class mapping. In the dynamic version, the call looks like this:       dynamic getUser = new DynamicSqlStoredProcedure("uspGetManagerEmployees", Database.AdventureWorks);     getUser.ManagerID = 16;       var employees = Fluently.Load<List<Employee>>()                             .With<EmployeeMap>()                             .From(getUser);   The important difference is that the ManagerId property doesn't exist in the DynamicSqlStoredProcedure class. Declaring the getUser object with the dynamic keyword allows you to dynamically add properties, and the DynamicSqlStoredProcedure class intercepts when properties are added and builds them as stored procedure parameters. When getUser.ManagerId = 16 is executed, the base class adds a parameter call (using the convention that parameter name is the property name prefixed by "@"), specifying the correct SQL Server data type (mapping it from the type of the value the property is set to), and setting the parameter value. Code Sample This is worked through in a sample project on github – Dynamic Stored Procedure Sample – which also includes a static version of the wrapper for comparison. (I'll upload this to the MSDN Code Gallery once my account has been resurrected). Points worth noting are: DynamicSP.Data – database-independent DAL that has all the data plumbing code. DynamicSP.Data.SqlServer – SQL Server DAL, thin layer on top of the generic DAL which adds SQL Server specific classes. Includes the DynamicSqlStoredProcedure base class. DynamicSqlStoredProcedure.TrySetMember. Invoked when a dynamic member is added. Assumes the property is a parameter named after the SP parameter name and infers the SqlDbType from the framework type. Adds a parameter to the internal stored procedure wrapper and sets its value. uspGetManagerEmployees – the static version of the wrapper. uspGetManagerEmployeesTest – test fixture which shows usage of the static and dynamic stored procedure wrappers. The sample uses stored procedures from the AdventureWorks database in the SQL Server 2008 Sample Databases. Discussion For this scenario, the dynamic option is very favourable. Assuming your DAL is itself wrapped by a higher layer, the stored procedure wrapper classes have very little reuse. Even if you're codegening the classes and test fixtures, it's still additional effort for very little value. The main consideration with dynamic classes is that the compiler ignores all the members you use, and evaluation only happens at runtime. In this case where scope is strictly limited that's not an issue – but you're relying on automated tests rather than the compiler to find errors, but that should just encourage better test coverage. Also you can codegen the dynamic calls at a higher level. Performance may be a consideration, as there is a first-time-use overhead when the dynamic members of an object are bound. For a single run, the dynamic wrapper took 0.2 seconds longer than the static wrapper. The framework does a good job of caching the effort though, so for 1,000 calls the dynamc version still only takes 0.2 seconds longer than the static: You don't get IntelliSense on dynamic objects, even for the declared members of the base class, and if you've been using class names as keys for configuration settings, you'll lose that option if you move to dynamics. The approach may make code more difficult to read, as you can't navigate through dynamic members, but you do still get full debugging support.     var employees = Fluently.Load<List<Employee>>()                             .With<EmployeeMap>()                             .From<uspGetManagerEmployees>                             (                                 i => i.ManagerID = 16,                                 x => x.Execute()                             );

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• How to Delete a Virtual Directory from an FTP Site in IIS 7 and IIS 7.5 using C#/VB.Net and WMI?

  - by Steve Johnson

  Hi all. I hope everybody is doing fine. I try to delete a virtual directory using WMi (Server Manager Class) and recreate with different values. The problem i am facing is that the virtual directory is not getting deleted. Please help. Here is my code. Try Using mgr As New ServerManager() Dim site As Site = mgr.Sites(DomainName) Dim app As Application = site.Applications("/") '.CreateElement() '("/" & VirDirName) Dim VirDir As VirtualDirectory = app.VirtualDirectories.CreateElement() For Each VirDir In app.VirtualDirectories If VirDir("path") = "/" & VirDirName Then app.VirtualDirectories.Remove(VirDir) Exit For End If Next mgr.CommitChanges() End Using Catch Err As Exception Ex = Err Throw New Exception(Err.Message, Ex) End Try

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• Create shortcut from vb.net on Windows 7 box (64 bit)

  - by Matt

  I am trying to create a desktop shortcut from vb.net code on a Windows 7 box (64 bit). The following code works on XP, but when run on Win7 I just get a message stating the App has stopped working: Imports IWshRuntimeLibrary Dim WshShell As WshShellClass = New WshShellClass Dim MyShortcut As IWshRuntimeLibrary.IWshShortcut ' The shortcut will be created on the desktop 'Win 7 MyShortcut = CType(WshShell.CreateShortcut("C:\Users\Public\Desktop\iexplore.lnk"), IWshRuntimeLibrary.IWshShortcut) 'MyShortcut = CType(WshShell.CreateShortcut("C:\Documents and Settings\All Users\Desktop\iexplore.lnk"), IWshRuntimeLibrary.IWshShortcut) MyShortcut.TargetPath = "C:\Program Files\Internet Explorer\iexplore.exe" 'Specify target app full path MyShortcut.Description = "IE" MyShortcut.Save() Any thoughts or better ways to create a shorcut from code on a Win7 box?

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