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  • how to load wpf usercontrol in MVVM pattern

    - by Anish
    Hi, I'm creating a wpf user control which is in mvvm pattern. So we have : view(with no code in codebehind file), viewmodel,model,dataaccess files. I have MainWindow.xaml as a view file, which I need to bind with MainWindowModel.cs. Usually, in a a wpf application we can do this with onStartUp event in App.xaml file. But in user control, as we do not have App.xaml...How do I achieve it ? Please help :(...Thanks in Advance !!!

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  • Refernce platform specific System.Data.SQLite

    - by Dmitriy Nagirnyak
    Hi, I am using SQLite for the unit testing and might use it as a database for local development/staging. The System.Data.SQLite has basically 2 versions: x86 and x64. Correct one should be used for the specific platform. I have 64 bit Win7, other guys in the team might use 32-bit OSs. The server's platform is not known at this stage. If I use 32-bit version of the assembly on 64-bit platform I get BadImageFormatException: Could not load file or assembly 'System.Data.SQLite'. I believe similar will happen trying to use 64-bit assembly on 32-bit platform. So my question is what is the best way to reference the SQLite assembly so that it does not depend on the platform and people can just use it? It is ok to use 32-bit version of assembly on a 64-bit platform (Maybe there is a switch for that somewhere?). Thanks, Dmitriy.

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  • Instantiating a System.Threading.Thread object in Jscript

    - by user297029
    I'm trying to create a new System.Threading.Thread object using Jscript, but I can't get the constructor to work. If I just do the following, var thread = new Thread( threadFunc ); function threadFunc() { // do stuff } then I get error JS1184: More than one constructor matches this argument list. However, if I try to coerce threadFunc to System.Threading.ThreadStart via var thread = new Thread( ThreadStart(threadFunc) ) I get error JS1208: The specified conversion or coercion is not possible Anyone know how to do this? It seems like it should be trivial.

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  • DirectSound affects system volume on WinXP

    - by Anton
    Hello guys, I'm currently developing an audio engine that is used in voice network chat software. Everything is working fine - capture/playback/mixing channels. The problem is in using it under Windows XP. I've been getting user reports with information that their global system volume is set to zero after launching the application. I'm assuming that happens because of WaveOut/DSound conflict. How can I force DSound not to affect system volume? Playback device is initialized: DirectSoundCreate8(&GUID, &pAudio, NULL); and: pAudio-SetCooperativeLevel(parentWnd, DSSCL_PRIORITY); I'm currently not able to debug the application, cause I'm using Vista and everything is OK. Hope you can help me with this issue! Thanks a Lot! Regards, Anton.

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  • OOP Design of items in a Point-of-Sale system

    - by Jonas
    I am implementing a Point-of-Sale system. In the system I represent an Item in three places, and I wounder how I should represent them in OOP. First I have the WarehouseItem, that contains price, purchase price, info about the supplier, suppliers price, info about the product and quantity in warehouse. Then I have CartItem, which contains the same fields as WarehouseItem, but adds NrOfItems and Discount. And finally I have ReceiptItem, thats contains an item where I have stripped of info about the supplier, and only contains the price that was payed. Are there any OOP-recommendations, best-practices or design patterns that I could apply for this? I don't really know if CartItem should contain (wrap) an WarehouseItem, or extend it, or if I just should copy the fields that I need. Maybe I should create an Item-class where I keep all common fields, and then extend it to WarehouseItem, CartItem and ReceiptItem. Sometimes I think that it is good to keep the field of the item and just display the information that is needed.

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  • Load django template from the database

    - by Björn Lindqvist
    Hello, Im trying to render a django template from a database outside of djangos normal request-response structure. But it appears to be non-trivial due to the way django templates are compiled. I want to do something like this: >>> s = Template.objects.get(pk = 123).content >>> some_method_to_render(s, {'a' : 123, 'b' : 456}) >>> ... the rendered output here ... How do you do this?

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  • Refurbished System Windows License Key and OEM Media

    - by Timothy R. Butler
    According to this question, it is legal to use a Windows 7 OEM license that is presently installed as a 32-bit install with a 64-bit version of Windows 7. With that in mind, I purchased several refurbished systems through TigerDirect. When I received the computers today, I found that they have a Windows 7 license key attached to them that says it is a "refurbished key." A flyer in the box also seemed to imply that this key would not work with regular OEM media. Has anyone tried using regular OEM media with a refurbished key? I had hoped to create a new 64-bit WIM image that I could use on these systems, but I don't want to try replacing the default install with this new 64-bit install only to find that the key won't validate. If it requires a special customized image, is it possible to convert another type of Windows 7 disc into the required sort much as one can convert a retail disc to an OEM one (and vise versa)?

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  • Biometric access control for time-reporting system

    - by dam
    I made a simple REST application to control the presence of workers. Now I'm looking for an inexpensive (100-250$) hardware, possibly linux based, with a fingerprint reader from which I can perform the user authentication and interact with the application (both the activities) via REST. I saw hundreds of different devices on internet which are supposed to do these activities but there are no good datasheets for them and it's very difficult to understand what's possible to do with those devices. Do you have any suggestions for me? Thanks

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  • Web browser.navigate("www.somesite.com") Load page in window but Webbrowser.Document returns Null

    - by Waseem
    Hi.. I am using Web browser control in a window form. Here i am navigating to some site with 1 parameter. It is loading the page into web browser but when i am looking for webbrowser.document to find some html tags so it is showing NULL for it. I want to find out All Anchor tags in webbrowse Loaded page. Following is my code. webChatPage.Navigate(ConfigurationManager.AppSettings["ServerURL"].ToString() + "/somepage.php?someparameter=" + sessionId); HtmlDocument hDoc = webChatPage.Document; //hDoc = NULL in debugging HtmlElementCollection aTag = hDoc.Links; MessageBox.Show(aTag.Count.ToString()); If there is any solution then help me out.

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  • How to sketch out an event-driven system?

    - by Jordan
    I'm trying to design a system in Node.js (an attempt at solving one of my earlier problems, using Node's concurrency) but I'm running into trouble figuring out how to draw a plan of how the thing should operate. I'm getting very tripped up thinking in terms of callbacks instead of returned values. The flow isn't linear, and it's really boggling my ability to draft it. How does one draw out an operational flow for an event-driven system? I need something I can look at and say "Ok, yes, that's how it will work. I'll start it over here, and it will give me back these results over here." Pictures would be very helpful for this one. Thanks. Edit: I'm looking for something more granular than UML, specifically, something that will help me transition from a blocking and object-oriented programming structure, where I'm comfortable, to a non-blocking and event driven structure, where I'm unfamiliar.

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  • Port a live system from App Engine Helper to App Engine Patch

    - by Alexander
    I am running a live system that is currently serving about 20K pages a day which is based on App Engine Helper (Python) with session support provided by AppEngine utilities. One problem that I have been having is that sessions are occasionally randomly logging out. I would like to try using the App Engine Patch, since it has "native" django session support, but I am worried that this is possibly going to be like doing a brain transplant. Specifically, current database models are all inhereted from BaseModel provided by the App Engine Helper. While, App Engine Patch does not have this inheritance. Does anyone know if it is possible to migrate a live system from App Engine Helper to App Engine Patch? If so, do you have any advice or warnings that I should heed, before attempting this transition? Thank you and kind regards Alex

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  • BES 5.0 and MAPI calls to exchange system

    - by nysingh
    We have been using BES 4.1(5) for a while now and it has been a resource hog on exchange due to high number of MAPI calls. I have heard that BES 5.0 is even worse. the comparison i heard is that BES 4.1 is makes MAPI calls equal to 5 outlook clients per BB user and BES 5.0 makes MAPI calls equal to 10 outlook clients per BB user. can someone confirm if it is true? is BES 5.0 is really that bad in MAPI calls and for exchange performance. ? thanks

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  • Using SQLXML Bulk Load in .NET Environment - Error with One to Many relationship on Complex Type

    - by user331111
    Hi, I have an error when I am importing an XML file using SQLXMLBulkLoad, wondering if anyone could help. Error: Data mapping to column 'Attribute' was already found in the data. Make sure that no two schema definitions map to the same column Full files and details can be found here http://www.experts-exchange.com/Microsoft/Development/MS-SQL-Server/SQL-Server-2005/Q_26102239.html Exert from XSD: <sql:relationship name="EnvironmentDECAttributes" parent="Environment" parent-key="intEnvironmentID" child="DECAttributes" child-key="intEnvironmentID"/> <complexType name="Environment"> <sequence> <element name="ESANumber" minOccurs="0"> <annotation> <documentation> Environmentally Sensitive Area Number </documentation> </annotation> <simpleType> <restriction base="string"> <maxLength value="15"/> <whiteSpace value="collapse"/> </restriction> </simpleType> </element> <element name="Conditions" minOccurs="0" sql:relation="Conditions" sql:relationship="EnvironmentConditions"> <complexType> <sequence> <element name="Condition" type="vms:EnvironmentalConditions" minOccurs="0" maxOccurs="5"/> </sequence> </complexType> </element> <element name="DECDistrict" minOccurs="0"> <annotation> <documentation> Department of Environment &amp; Conservation District </documentation> </annotation> <simpleType> <restriction base="string"> <maxLength value="31"/> <whiteSpace value="collapse"/> </restriction> </simpleType> </element> <element name="DECAttributes" minOccurs="0" maxOccurs="1" sql:relation="DECAttributes" sql:relationship="EnvironmentDECAttributes"> <complexType> <sequence> <element name="Attribute" type="vms:DECAttributes" minOccurs="0" maxOccurs="unbounded" sql:field="Attribute"> <annotation> <documentation> Department of Environment &amp; Conservation attributes. </documentation> </annotation> </element> </sequence> </complexType> </element> </sequence> </complexType> Exert from XML: <Environment> <DECAttributes> <Attribute>WA</Attribute> <Attribute>SA</Attribute> </DECAttributes> </Environment> Any help/ comments would be appreciated Thanks C

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  • IE won't load PDF in a window created with window.open

    - by Dean
    Here's the problem, which only occurs in Internet Explorer (IE). I have a page that has links to several different types of files. Links from these files execute a Javascript function that opens a new window and loads the specific file. This works great, unless the file I need to open in the new window is a PDF in which case the window is blank, even though the URL is in the address field. Refreshing that window using F5 doesn't help. However, if I put the cursor in the address field and press <enter> the PDF loads right up. This problem only occurs in IE. I have seen it in IE 7 and 8 and am using Adobe Acrobat Reader 9. In Firefox (PC and Mac) everything works perfectly. In Chrome (Mac), the PDF is downloaded. In Safari (Mac) it works. In Opera (Mac) it prompts me to open or save. Basically, everything probably works fine, except for IE. I have searched for similar problems and have seen some posts where it was suggested to adjust some of the Internet Options on IE. I have tried this but it doesn't help, and the problem wasn't exactly the same anyway. Here's the Javascript function I use to open the new window. function newwin(url,w,h) { win = window.open(url,"temp","width="+w+",height="+h+",menubar=yes,toolbar=yes,location=yes,status=yes,scrollbars=auto,resizable=yes"); win.focus(); } You can see that I pass in the URL as well as the height, h, and width, w, of the window. I've used a function like this for years and as far as I know have never had a problem. I call the newwin() function using this. <a href="javascript:newwin('/path/document.pdf',400,300)">document.pdf</a> (Yes, I know there are other, better ways than using inline JS, and I've even tried some of them because I've run out of things to try, but nothing works.) So, if anyone has an idea as to what might be causing this problem, I'd love to hear it.

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  • Appcelerator Titanium: Android SDK doesn't load

    - by Michael Gajda
    Hello! I started developing with Titanium and now I really stuck on one part. I downloaded the Adroid SDK and added the path to Titanium: /Users/michael/Downloads/android-sdk-mac_86/ I can open e.g. Kitchen Sink in the iPhone Simulator without problems, but when I want to open it in Android then my screen looks like this: Screenshot Why is down there all the time, even after 2 hours of waiting, the label "loading..." ?

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  • How to auto-cc a system email account any time a user creates an appointment

    - by Ferdy
    I will not bother explaining my full architecture or reasons for wanting this in order to keep this question short: Is it possible to auto-cc a certain email account any time a Exchange user creates an appointment or meeting in his own calendar? Is it possible using rules? Our Exchange 2007 server is outsourced, I cannot change the configuration or install plugins server-side Preferably, it still should work server-side, because users may use the Outlook client but also Outlook Web Access Is there any other way, perhaps using group policies? My conclusion so far is that the only viable way to accomplish this is to build an Outlook add-on. The problem there is that it will need to be managed for thousands of desktop users and that the add-on will not work when using another client (OWA, mobile). An alternative architecture could be to pull the information from the user's calendar on a scheduled basis. Given that we are talking about a lot of users, scalability is a major issue, this has also been confirmed by Microsoft. Can you confirm that my thinking is correct or do you have any other solutions?

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  • How do I set scons system include path

    - by Michael Anderson
    Using scons I can easily set my include paths: env.Append( CPPPATH=['foo'] ) This passes the flag -Ifoo to gcc However I'm trying to compile with a lot of warnings enabled. In particular with env.Append( CPPFLAGS=['-Werror', '-Wall', '-Wextra'] ) which dies horribly on certain boost includes ... I can fix this by adding the boost includes to the system include path rather than the include path as gcc treats system includes differently. So what I need to get passed to gcc instead of -Ifoo is -isystem foo I guess I could do this with the CPPFLAGS variable, but was wondering if there was a better solution built into scons.

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  • Virtualbox 4 hangs when trying to install ubuntu guest on ubuntu host system

    - by misterjinx
    I'm trying to install ubuntu server using virtualbox 4.0.4 in a ubuntu 10.10 host OS. I have the iso image on my hard drive which I used to perform the install. I edited the settings and added this image at the storage section, selected it as a primary master, so I could boot from it and start the install process. But now, each time I start the installation, at the very beginning or if I'm lucky, after I click on the install link at the welcome screen, the process hangs and all the computer is blocked. This happened 3 times already. I even tried to perform the installation using an old CD I had with the 9.10 server version, thinking that the iso image might be the issue, but the problem still persists. I dont know what could cause this problem. My computer is a dell laptop with AMD processor (I dont know if this is important). Any help is very appreciated.

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  • Installing a different edition of Windows 8 on an OEM system

    - by user22105
    My PC comes with an OEM copy of Windows 8 (regular), but I only have a Windows 8 Professional DVD. Will Windows 8 automatically detect the edition associated with the product key in my BIOS and install Windows 8 (regular) instead of allowing me to enter the key for the Professional edition? (I have an Asus Q200E Win 8 Core OEM laptop. I borrowed a Windows 8 Professional DVD from my friends, so naturally, I can’t use his product key.)

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  • Cygwin gdal library load error

    - by Erdem
    I built spatialite library then gdal library with spatialite support. Also built mapserver which depends on gdal with success. There was no problem with linking. When I try to execute a gdal utility I get: $ ogrinfo.exe /usr/local/bin/ogrinfo.exe: error while loading shared libraries: cyggdal-1.dll: cannot open shared object file: No such file or directory But everything seems fine: $ ldd /usr/local/bin/ogrinfo.exe ntdll.dll => /cygdrive/c/WINDOWS/system32/ntdll.dll (0x7c900000) kernel32.dll => /cygdrive/c/WINDOWS/system32/kernel32.dll (0x7c800000) cyggdal-1.dll => /usr/local/bin/cyggdal-1.dll (0x710c0000) cygcurl-4.dll => /usr/bin/cygcurl-4.dll (0x63d80000) cyggcc_s-1.dll => /usr/bin/cyggcc_s-1.dll (0x67f00000) cygwin1.dll => /usr/bin/cygwin1.dll (0x61000000) ADVAPI32.DLL => /cygdrive/c/WINDOWS/system32/ADVAPI32.DLL (0x77dd0000) RPCRT4.dll => /cygdrive/c/WINDOWS/system32/RPCRT4.dll (0x77e70000) Secur32.dll => /cygdrive/c/WINDOWS/system32/Secur32.dll (0x77fe0000) cygcrypto-0.9.8.dll => /usr/bin/cygcrypto-0.9.8.dll (0x6ba40000) cygidn-11.dll => /usr/bin/cygidn-11.dll (0x6c200000) cygiconv-2.dll => /usr/bin/cygiconv-2.dll (0x674c0000) cygintl-8.dll => /usr/bin/cygintl-8.dll (0x6f5c0000) cygssh2-1.dll => /usr/bin/cygssh2-1.dll (0x69ec0000) cygz.dll => /usr/bin/cygz.dll (0x692c0000) cygssl-0.9.8.dll => /usr/bin/cygssl-0.9.8.dll (0x63400000) cygexpat-1.dll => /usr/bin/cygexpat-1.dll (0x66ec0000) cyggeos_c-1.dll => /usr/bin/cyggeos_c-1.dll (0x70180000) cyggeos-3-1-1.dll => /usr/bin/cyggeos-3-1-1.dll (0x4e0000) cygjpeg-7.dll => /usr/bin/cygjpeg-7.dll (0x66e00000) cygpng12.dll => /usr/bin/cygpng12.dll (0x6f200000) If I copy the cyggdal-1.dll to the current folder: $ ogrinfo.exe /usr/local/bin/ogrinfo.exe: error while loading shared libraries: ?: cannot open shared object file: No such file or directory So what is a '?' library? $ ldd cyggdal-1.dll ntdll.dll => /cygdrive/c/WINDOWS/system32/ntdll.dll (0x7c900000) kernel32.dll => /cygdrive/c/WINDOWS/system32/kernel32.dll (0x7c800000) ??? => ??? (0x710c0000) ??? => ??? (0x63d80000) ??? => ??? (0x67f00000) ??? => ??? (0x61000000) ??? => ??? (0x77dd0000) ??? => ??? (0x77e70000) ??? => ??? (0x77fe0000) ??? => ??? (0x6ba40000) ??? => ??? (0x6c200000) ??? => ??? (0x674c0000) ??? => ??? (0x6f5c0000) ??? => ??? (0x69ec0000) ??? => ??? (0x692c0000) ??? => ??? (0x63400000) ??? => ??? (0x66ec0000) ??? => ??? (0x70180000) ??? => ??? (0x4b0000) ??? => ??? (0x66e00000) ??? => ??? (0x6f200000) What are these "???" ? How to solve this problem?

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  • Virtual system drive is split between separate LUNs

    - by Tigran
    My hardware VMWare guy told me that a Win2008R2 server I have has a D drive that is split between two separate LUNs. He could not tell me if that's a good thing or bad just that it's not standard practice for him. Would you please explain the benefits or drawbacks of this setup? Thanks EDIT Some additional info. What happened was I had D drive already allocated. Then I asked for more. They said there's no more space on whatever LUN my D drive is on so the option they gave me was that part of the D drive will be on one LUN and other part will be on another LUN. Hope that helps

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