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  • What is the equivalent of OnRender in Silverlight?

    - by John Weldon
    I'm working on porting an app from WPF to Silverlight. The app uses custom types derived from FrameworkElement (in WPF) to describe shapes, and text to be rendered on a Canvas. The WPF app root node overrides OnRender() to iterate through a collection of 'child' nodes, calling Render on each child node to build the Visual Tree. Silverlight doesn't expose OnRender, but there are hints that the same effect can be achieved using ControlTemplate. Is this the way to go, and are there any good examples of using this method available? I've done some googling (binging?) and found nothing really conclusive.

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  • Good examples of MVVM Template

    - by jwarzech
    I am currently working with the Microsoft MVVM template and find the lack of detailed examples frustrating. The included ContactBook example shows very little Command handling and the only other example I've found is from an MSDN Magazine article where the concepts are similar but uses a slightly different approach and still lack in any complexity. Are there any decent MVVM examples that at least show basic CRUD operations and dialog/content switching? Everyone's suggestions were really useful and I will start compiling a list of good resources Frameworks/Templates WPF Model-View-ViewModel Toolkit MVVM Light Toolkit Prism Caliburn Cinch Useful Articles Data Validation in .NET 3.5 Using a ViewModel to Provide Meaningful Validation Error Messages Action based ViewModel and Model validation Dialogs Command Bindings in MVVM More than just MVC for WPF MVVM + Mediator Example Application Additional Libraries WPF Disciples' improved Mediator Pattern implementation(I highly recommend this for applications that have more complex navigation)

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  • WPF: Once I set a property in code, it ignores XAML binding forever more... how do I prevent that?

    - by Timothy Khouri
    I have a button that has a datatrigger that is used to disable the button if a certain property is not set to true: <Button Name="ExtendButton" Click="ExtendButton_Click" Margin="0,0,0,8"> <Button.Style> <Style> <Style.Triggers> <DataTrigger Binding="{Binding IsConnected}" Value="False"> <Setter Property="Button.IsEnabled" Value="False" /> </DataTrigger> </Style.Triggers> </Style> </Button.Style> That's some very simple binding, and it works perfectly. I can set "IsConnected" true and false and true and false and true and false, and I love to see my button just auto-magically become disabled, then enabled, etc. etc. However, in my Button_Click event... I want to: Disable the button (by using ExtendButton.IsEnabled = false;) Run some asynchronous code (that hits a server... takes about 1 second). Re-enable the button (by using ExtendButton.IsEnabled = true;) The problem is, the very instant that I manually set IsEnabled to either true or false... my XAML binding will never fire again. This makes me very sad :( I wish that IsEnabled was tri-state... and that true meant true, false meant false and null meant inherit. But that is not the case, so what do I do?

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  • Visual Artifacts in Visual Studio 2010

    - by Simon Chadwick
    I'm using VS 2010 on Windows Server 2003, running on a Dell Inspiron 9400 laptop. VS 2010 runs fine, except for persistent and random screen re-drawing issues. Samples of these are here. These artifacts occur as the mouse moves over items that highlight on a mouse-over event, while scrolling, and when switching tabs. VS 2008 has non of these issues, so I assume that it is related to VS 2010's use of WPF. Could it be that my video card or driver is not up to the task of rendering WPF? Some other WPF applications (not Silverlight) also have some of these screen repainting problems. I have tried a variety of settings in System Properties--Advanced--Performance Options--Visual Effects, and in the related "Advanced" tab, Processor Scheduling is adjusted for best performance of programs. Many thanks for any suggestions!

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  • Parent and child model interaction

    - by jminarik
    Hi, is it possible set something like wpf window owner in caliburn.micro ? I have PARENT VIEW MODEL, from this model I open CHILD SCREEN {VIEW MODEL} with this method: public IEnumerable<IResult> Open() { yield return new ShowWindow("ChatScreen") .InitializeWith(_service .DetailData(Account, _selectedFriend.Value.Nick), AvatarImage); } This method create a new WPF WINDOW - CHILD SCREEN and initialize CHILD VIEW MODEL with some variables. I would like set something like this CHILD_SCREEN.PARENT = PARENT_VIEW_MODEL. I would like achieve if I close PARENT VIEW MODEL that it close also all CHILD MODELS. Also it exist way how can I check if screen, in my situation WPF window, is active/inactive from MAIN VIEW MODEL?

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  • Memory is leaked only in some machines.

    - by Jorge Córdoba
    We've got a situation where our application is leaking memory while doing some periodic action. The test scenario is composed of a series of processes across two relatively complex WPF windows. The weird thing about the situation is that memory only gets leaked on SOME machines, while others, having exactly the same hardware, can be working for really long times (repeating the process every minute) having their memory almost unchanged (once the GC gets rid of used memory, etc). This is .NET + WPF. Any ideas about where to start looking? What can cause leaks in only some machines? (we're talking about a 30 machine test scenario). I have few experience with WPF, could the graphic card had anything to do with it?

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  • Hide users from Mac OS X Snow Leopard logon screen.

    - by googletorp
    Somehow, I managed to set a passwd for my _postgres user on my OS instead of setting it on the postgres role I have as my superuser / root. Anyways since this, I've been struggling with that user showing up in the account section and login screen, which I really would like to avoid. I've read through some docs about this, and setting the password to * should be all that is needed to fix this. But after several attempts doing this with and without dscl to no avail, I'm gotten to a point where I don't know what to do anymore. I didn't think it would be even hard doing this, but clearly I'm missing something, so how do you do this?

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  • sharepoint 2007 access denied when accessing user profiles via ssp

    - by user22215
    Guys I have a really strange problem in regards to sharepoint mysites today I go into user profiles and properties in order to setup a property all of a sudden I get access denied. First off I know that I'm logged in with the correct account after the access denied I decided to click on personalization services and permissions I than get An unhandled exception occurred in the user interface.Exception Information: Cannot complete this action. I'm not seeing anything in the server application logs either. So have any of you guys seen this before is there some kind of way to grant a user account the manage profiles right permission using stsadm. BTW all other fucntions of the ssp are working fine so my question is if the user profiles and my sites of a ssp tanks how do you repair that portion of the ssp? BTW the user accounts that I'm using are site collection owners and also they have full control at the web application level. I actually ran across this interesting post but this does not really help my problem. http://blog.tylerholmes.com/2008/09/access-denied-for-site-collection.html

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  • Connecting a limited user to win server 2003 through LogMeIn

    - by Jeff
    Logmein support can't help me, maybe someone here can. I have a user on a windows 2003 server (non administrator). When I first created him and tried to connect through remote desktop I got the error "The local policy of the system does not permit you to logon interactively." I looked up the error and saw that this user was not a member of the Remote Desktop Users group. I added him to the group and was able to remote desktop in just fine. Then I tried to connect this user to the server through LogMeIn (pro trial version). I got the same error as when the user was not a part of the Remote Desktop Users group ("The local policy of the system does not permit you to logon interactively."). Can anyone tell me any other groups the user must be a member of in order to be allowed access through LogMeIn? I would image this is a common requirement logmein support seemed to have no idea.

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  • CakePHP: trouble configuring .htaccess for user directories enabled server

    - by bullettime
    I've placed the CakePHP files in a directory in /home/user/public_html/cakephp. When I try to reach localhost/~user/cakephp with my browser, there's an error message. In my case, since I'm using Chrome, it is 'Oops! This link appears to be broken.". Looking for a solution on Google, I found a few articles saying that I have to edit the .htaccess files that came with CakePHP, since it was made to work out of the box in /var/www/htdocs. Apparently I have to add a 'RewriteBase' statement to the .htaccess files. I added 'RewriteBase /' to it but it didn't work. If I change the RewriteBase statement in my user web directory to 'RewriteBase /cakephp' and then try to access localhost/~user/cakephp, the browser then shows not the copy in /home/user/public_html/cakephp but the copy in /var/www/htdocs/cakephp. What can I do to fix this?

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  • pslist causes security audit log failure on non-administrative user account

    - by Woot4Moo
    The user has RX privs. This event consistently arises in the security logs. How can this be resolved? Or what is the underlying issue here? Some additional information the user has local login disabled and log on as a service enabled. Failure Audit Category: Object Access Event ID 560 Object Server: Security Object Type: File Object Name: Pg_control Image File Name: xx/xx/xx/xx postgres.exe Primary User name: my_User Object Open: Object Server: Security Object Type: Key Object Name: \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Performance Handle ID: - Operation ID: {0,26727190} Process ID: 2492 Image File Name: C:\Program Files\tomcat\webapps\myApp\bin\win32\pslist.exe Primary User Name: my_user Primary Domain: KFHFTZ03 Primary Logon ID: (0x0,0x178D9) Client User Name: - Client Domain: - Client Logon ID: - Accesses: READ_CONTROL Query key value Set key value Create sub-key Enumerate sub-keys Notify about changes to keys Privileges: - Restricted Sid Count: 0 Access Mask: 0x2001

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  • Terse, documented, correct way to create Kerberos-backed user shares in Greyhole

    - by MrGomez
    As a migration strategy away from Windows Home Server (which is currently out of support and intractable for our needs, for a variety of reasons), our little cloister of nerds has targeted Greyhole for our shared use at home. Despite the documentation's terseness, getting the system set up for simple, single-user operation isn't especially difficult, but this scenario fails to service our needs. Among other highlights of the system, we're attempting to emulate Integrated Windows Authentication (with Kerberos) and single-user shares to keep the Windows users in the house happy and well-supported. I'm aware of the underlying systems that go into Greyhole and understand how to set up per-user shares in Samba, but the documentation doesn't seem to support cases for Greyhole to sop up these directories as separate landing zones for replication. Enter my question: are both of these cases (IWA user authentication and user-partitioned personal shares) supported by Greyhole? If so, please cite or link the supporting documentation if it exists.

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  • Restoring an Exchange 2010 user's calendar without rest of mailbox

    - by AlamedaDad
    I am trying to restore a user's calendar from backup, which was deleted by a sync problem on her mobile device. I've been able to restore her mailbox without a problem but I had to link it to a new AD user since she deleted the calendar several days before she reported the problem and the current backups of her account didn't include any calendar events, but all of her current email. I had to restore the mailbox from the day before she deleted everything. I've tried sharing the calendar and opening it in her account, then copying or moving the contents, but I get an error that outlook can't do the task because there are personal items. I tried bringing up the "Recovery User" I created, in Outlook and exporting the calendar events to a .pst, then importing them into the user's real account, but they all get created in a sub-folder called "Recovery User." In case it matters, she's running Outlook 2010 and we're using Exchange 2010 SP1. Thank in advance for help with this problem...Michael

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  • Git version control with multiple users

    - by ignatius
    Hello, i am a little bit lost with this issue, let me explain you my problem: I want to setup a git repository, three of four users will contribute, so they need to download the code and shall be able to upload their changes to the server or update their branch with the latest modifications. So, i setup a linux machine, install git, setup the repository, then add the users in order to enable the acces throught ssh. Now my question is, What's next?, the git documentation is a little bit confusing, i.e. when i try from a dummy user account to clone the repository i got: xxx@xxx-desktop:~/Documentos/git/test$ git clone -v ssh://[email protected]/pub.git Initialized empty Git repository in /home/xxx/Documentos/git/test/pub/.git/ [email protected]'s password: fatal: '/pub.git' does not appear to be a git repository fatal: The remote end hung up unexpectedly is that a problem of privileges? need any special configuration? i want to avoid using git-daemon or gitosis, sorry, maybe my question sound silly but git is powerfull but i admit not so user friendly. Thanks Br

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  • How can I get a scheduled task to run for a user regardless of which computer the user is logged onto?

    - by Ernst
    I've got a scheduled task that needs to run for a user at a specific time. However, the user sometimes logs onto one machine, the next day onto another, then next week onto yet another. At some pint during the day, the user might have to log onto another machine. How do I get the scheduled task to run regardless of which computer the user is using? I could of course create the task on all computers, but that seems a bit overkill. Running a script on log on (or a group policy) to create the task doesn't seem a good method either. Any ideas? Basically I want the scheduled task to be defined on the user instead of on the computer. If in the end I need to choose between the two options above, which is best?

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  • Windows 8 - can't drag files from Explorer and drop on applications

    - by FerretallicA
    In Windows 8 I find I can't drag files to applications like I've been able to do for as long as I can remember. Example: Drag MP3s to Winamp Drag folder full of music to Winamp Drag videos to VLC Drag txt, reg etc files to Notepad I have tried various combinations of: Running Explorer as administrator Running drop target as administrator Taking ownership of drop target application's folder Taking ownership of Explorer Changing user account to administrator Create a new user account Lowering UAC level Disabling UAC in GUI Disabling UAC in registry Running Explorer folders in a separate thread This is the last straw if there's no known proper (ie non hacky compromise) fix for this. "Little" things like this combined are a productivity nightmare and if I have to relearn so much and configure so much to get basic things done with an OS I might as well just move to Linux once and for all.

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  • Report of a user's membership in groove spaces?

    - by Jeremy
    Hi All, I want to find out whether there is a way in Microsoft Groove to find out which spaces a user is in (and conversely which spaces the user is not in). We run a free script called Personal Backup for Groove for our backups. The script dumps out all the groove spaces that our "backup user" is a member of. However, if someone creates a new space and doesn't invite the backup user, that space will never get backed up. We're trying to find a way to audit the "backup user" membership so that we can ensure that it's invited to all spaces. Thanks!

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  • bash : "set -e" and check if a user exists make script exit

    - by Dahmad Boutfounast
    i am writing a script to install a program with bash, i want to exit on error so i added "set -e" in the beginning of my script. the problem is that i have to check if a user exists inside of my script, to do this i am using "grep "^${USER}:" /etc/passwd", if the user exists, the script runs normally, but if the user doesn't exist, this command exists, and i don't want to exit on this case (i have to create the user and continue my installation). so what's the solution to make my script continue running ?? i tried to redirect the output of "grep" to a variable, but i still have the same problem :( thanks.

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  • Set Users as chrooted for sftp, but allow user to login in SSH

    - by Eghes
    I have setup a ssh server on debian 7, to use sftp connection. I chrooted some user, with this config: Match Group sftpusers ChrootDirectory /sftp/%u ForceCommand internal-sftp But if i want login with one of this chrooted users in ssh console, they get logged, but autoclose the connection. In logs I see: Oct 17 13:39:32 xxxxxx sshd[31100]: Accepted password for yyyyyy from zzz.zzz.zzz.zzz port 7855 ssh2 Oct 17 13:39:32 xxxxxx[31100]: pam_unix(sshd:session): session opened for user yyyyyyyyyyyy by (uid=0) Oct 17 13:39:32 d00hyr-ea1 sshd[31100]: pam_unix(sshd:session): session closed for user yyyyyyyyyyyy How can I chroot a user only for sftp, and use it as a normal user for ssh?

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  • Setting up NIS/NFS on Mac OS 10.6

    - by evan
    We have an Ubuntu NIS/NFS server at work and we recently got a few new iMacs. Is there a way to set them up so they can use the linux user accounts and mount the shared nfs files? Are there any guides on how to do this? I've been googling with no success. I tried getting NFS to work by connecting to the server via the Disk Utility but after I run 'sudo automount' from the command line and ls the directory I tried to mount it to (Volumes/nfs) it gives a permissions error. If there isn't a way to do this, anyone know of any not to complicated ways to share user accounts and files between mac and linux computers (and even hypothetically a windows computer one day?) I know its kind a of huge question, but I'll greatly appreciate any advice on the topic. Thanks!

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  • How to recover C:\Users folder

    - by Matías Fidemraizer
    Today I was moving C:\Users to another partition using symlink method. I had the great idea of making the symlink from C:\Users = U:\, instead of C:\Users = U:\Users. Sadly, I've deleted the original "Users" folder and now, when I try to login, it says that The User Profile Service failed the logon. Maybe I'm wrong, but this is because the root directory of user profiles isn't the system one, so now when I create C:\Users, I can't log into Windows and I get the above error message. How can create a new C:\Users directory and workaround the problem? Thank you in advance!

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  • Linux file permissions seem right but I can't write to a directory

    - by CaseyB
    I believe that I have the permissions set correctly but I can't write to a directory. Here's my problem: cborders@Kraken:/var/www$ ls -la total 12 drwxrwxr-x 2 webz webz 4096 2011-12-30 14:58 ./ drwxr-xr-x 13 root root 4096 2011-12-30 14:58 ../ -rw-rw-r-- 1 webz webz 177 2011-12-30 14:58 index.html cborders@Kraken:/var/www$ id cborders uid=1000(cborders) gid=1000(cborders) groups=1000(cborders),4(adm),20(dialout),24(cdrom),46(plugdev),109(sambashare),113(lpadmin),114(admin),1002(webz) cborders@Kraken:/var/www$ mkdir test mkdir: cannot create directory `test': Permission denied The owner of the directory is a user called webz and the permissions allow the user and group rwx access to it. I am in the webz group but I still can't make any changes. What am I doing wrong here?

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  • sharepoint 2007 access denied when accessing user profiles via ssp

    - by user22215
    Guys I have a really strange problem in regards to sharepoint mysites today I go into user profiles and properties in order to setup a property all of a sudden I get access denied. First off I know that I'm logged in with the correct account after the access denied I decided to click on personalization services and permissions I than get An unhandled exception occurred in the user interface.Exception Information: Cannot complete this action. I'm not seeing anything in the server application logs either. So have any of you guys seen this before is there some kind of way to grant a user account the manage profiles right permission using stsadm. BTW all other fucntions of the ssp are working fine so my question is if the user profiles and my sites of a ssp tanks how do you repair that portion of the ssp? BTW the user accounts that I'm using are site collection owners and also they have full control at the web application level. I actually ran across this interesting post but this does not really help my problem. http://blog.tylerholmes.com/2008/09/access-denied-for-site-collection.html

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  • Sync files between two users on Windows-7 Enterprise

    - by Zachary
    I'm running Windows-7 enterprise on a dell Laptop, and I'd like to sync the entire user directory structure between two users. Background: I am an existing user on the computer, and soon I'll be sharing the computer with an employee. I want everything from my account to overwrite the other, while anything he does is mirrored on mine. I'm not worried about security because nothing vital is on the computer. Both accounts are administrators, and I have already tried to use hard links to accomplish this. However the prompt leaves me with "Access Denied". Is what I'm trying to do possible, and if so what steps must be done to accomplish it?

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