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  • VS 2010 and Entity Framework: accessing SQL Server 2000 databases

    - by pcampbell
    Consider a Visual Studio 2010 project whose requirement is to model the data using Entity Framework. The datasource is a SQL Server 2000 database. The first step is creating a new ADO.NET Entity Data Model item. The Entity Data Model Wizard prompts for a Data Connection. When creating a new Connection, you will need to use a provider other than SqlClient. Usually it's SQLOLEDB. The list of data providers only has SqlClient or ".NET Framework Data Provider for SQL Server". Is there a work-around for Visual Studio 2010 to create or use data connections to SQL Server 2000 using the Entity Framework?

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  • urlencode an array of values

    - by Ikke
    I'm trying to urlencode an dictionary in python with urllib.urlencode. The problem is, I have to encode an array. The result needs to be: criterias%5B%5D=member&criterias%5B%5D=issue #unquoted: criterias[]=member&criterias[]=issue But the result I get is: criterias=%5B%27member%27%2C+%27issue%27%5D #unquoted: criterias=['member',+'issue'] I have tried several things, but I can't seem to get the right result. import urllib criterias = ['member', 'issue'] params = { 'criterias[]': criterias, } print urllib.urlencode(params) If I use cgi.parse_qs to decode a correct query string, I get this as result: {'criterias[]': ['member', 'issue']} But if I encode that result, I get a wrong result back. Is there a way to produce the expected result?

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  • Why allow concatenation of string literals?

    - by Caspin
    I recently got bit by a subtle bug. char ** int2str = { "zero", // 0 "one", // 1 "two" // 2 "three",// 3 nullptr }; assert( values[1] == "one"_s ); // passes assert( values[2] == "two"_s ); // fails If you have godlike code review powers you'll notice I forgot the , after "two". After the considerable effort to find that bug I've got to ask why would anyone ever want this behavior? I can see how this might be useful for macro magic, but then why is this a "feature" in a modern language like python? Have you ever used string literal concatenation in production code?

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  • VisualStudio2010 Debugging - The process cannot access the file ... because it is being used by anot

    - by Richard Forss
    I'm unable to debug a WinForms C# application using the released version of Visual Studio 2010 Prof. I get the following error message after the second debugging run. Error 9 Unable to copy file "obj\x86\Debug\Arrowgrass Reports.exe" to "bin\Debug\Arrowgrass Reports.exe". The process cannot access the file 'bin\Debug\Arrowgrass Reports.exe' because it is being used by another process. I've tried a pre-build script to attempt to delete this file, but it's locked by Visual Studio. There are a few references to this on the net so it is a know problem. Does anyone have a hotfix or effective work-around?

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  • Will you use Delphi Prism

    - by Mohammed Nasman
    CodeGear announces that their Next .Net product which is known as Delphi Prism Will be RemObjects's Oxygene. Oxygene has many nice features that not found in Delphi or C#, and I think it will be a more effective solution for .Net than Delphi .Net previous releases, but it's uses Visual Studio IDE instead of Delphi IDE. which has some cons and pros. As Delphi Developer or .Net Developer, do you consider to use Delphi Prism for .Net developmenet? Look at these Links for more info. Delphi Prism vs. CSharp Delphi Prism - Visual Studio Pascal For .NET Delphi Prims home page

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  • Outlook 2003 View Control with C#

    - by Eleasar
    I want to embed a custom c# windows form (or WPF) user control into an outlook view. I am using Outlook 2003 and Visual Studio 2008. I did download an example for Outlook 2007 here: http://blogs.msdn.com/e2eblog/archive/2008/01/09/outlook-folder-homepage-hosting-wpf-activex-and-windows-forms-controls.aspx and also here: http://msdn.microsoft.com/en-us/library/aa479345.aspx I tested it and under 2007 it is working, but for 2003 i am getting the following error when i want to open the view: Could not complete the operation due to error 80131509 I can start it from Visual Studio, it is registering the folder just fine, debugging works and all that. It creates an HTML page that contains my type as an object parameter - but the Initialize method that should be called is either not present (not shown via JS) or it has some errors. The breakpoints for RegisterSafeForScripting are also never hit - maybe related to that. Thx in advance!

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  • django admin: Add a "remove file" field for Image- or FileFields

    - by w-
    I was hunting around the net for a way to easily allow users to blank out imagefield/filefields they have set in the admin. I found this http://www.djangosnippets.org/snippets/894/ What was really interesting to me here was the code posted in the comment by rfugger remove_the_file = forms.BooleanField(required=False) def save(self, *args, **kwargs): object = super(self.__class__, self).save(*args, **kwargs) if self.cleaned_data.get('remove_the_file'): object.the_file = '' return object When i try to use this in my own form I basically added this to my admin.py which already had a BlahAdmin class BlahModelForm(forms.ModelForm): class Meta: model = Blah remove_img01 = forms.BooleanField(required=False) def save(self, *args, **kwargs): object = super(self.__class__, self).save(*args, **kwargs) if self.cleaned_data.get('remove_img01'): object.img01 = '' return object when i run it I get this error maximum recursion depth exceeded while calling a Python object at this line object = super(self.__class__, self).save(*args, **kwargs) When i think about it for a bit, it seems obvious that it is just infinitely calling itself causing the error. My problem is i can't figure out what is the correct way i should be doing this. Any suggestions? thanks

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  • Comparison of the multiprocessing module and pyro?

    - by fivebells
    I use pyro for basic management of parallel jobs on a compute cluster. I just moved to a cluster where I will be responsible for using all the cores on each compute node. (On previous clusters, each core has been a separate node.) The python multiprocessing module seems like a good fit for this. I notice it can also be used for remote-process communication. If anyone has used both frameworks for remote-process communication, I'd be grateful to hear how they stack up against each other. The obvious benefit of the multiprocessing module is that it's built-in from 2.6. Apart from that, it's hard for me to tell which is better.

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  • User management API

    - by Akshey
    Hi, I am developing an application suite where users will need to connect to a server and depending on their account type they will be given some services. The server will run Linux. Can you please suggest me some user management API which I can use to develop the server program? By user management I mean user authentication and other related functionalities. I prefer to work in C++ or python, but any other language should not be a problem. Please note that this application suite is not web based. Due to security issues, I do not want to give each user a separate account on the linux server. Thanks, Akshey

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  • Clean conflicting class files from Temporary ASP.NET Files

    - by Deepfreezed
    Class file Conflicts in C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\ is preventing me from building the solution. Even though I try emptying out the folder, each time Visual Studio starts the build process, it brings in the class file in to the temp folder with the same folder name. If I restart the machine or leave it overnight, project build without error. Is there anyway to tell Visual studio to delete/ignore/clean any lingering class files that could be in the temp folder? Clean solution option in VS doesn't work either. Class file in conflict are from the App_Code folder.

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  • Getting BeautifulSoup to find a specific <p>

    - by Ryan
    I'm trying to put together a basic HTML scraper for a variety of scientific journal websites, specifically trying to get the abstract or introductory paragraph. The current journal I'm working on is Nature, and the article I've been using as my sample can be seen at http://www.nature.com/nature/journal/v463/n7284/abs/nature08715.html. I can't get the abstract out of that page, however. I'm searching for everything between the <p class="lead">...</p> tags, but I can't seem to figure out how to isolate them. I thought it would be something simple like from BeautifulSoup import BeautifulSoup import re import urllib2 address="http://www.nature.com/nature/journal/v463/n7284/full/nature08715.html" html = urllib2.urlopen(address).read() soup = BeautifulSoup(html) abstract = soup.find('p', attrs={'class' : 'lead'}) print abstract Using Python 2.5, BeautifulSoup 3.0.8, running this returns 'None'. I have no option of using anything else that needs to be compiled/installed (like lxml). Is BeautifulSoup confused, or am I?

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  • Best DataMining Database

    - by Eric
    I am an ocasional Python programer who only have worked so far with MYSQL or SQLITE databases. I am the computer person for everything in a small compamy and I have been started a new project where I think it is about time to try new databases. Sales departament makes a CSV dump every week and I need to make a small scripting application that allow people form other departaments mixing the information, mostly linking the records. I have all this solved, my problem is the speed, I am using just plain text files for all this and unsurprisingly it is very slow. I thought about using mysql, but then I need installing mysql in every desktop, sqlite is easier, but it is very slow. I do not need a full relational database, just some way of play with big amounts of data in a decent time. Many thanks!

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  • Install .NET 4.0 dll to the GAC

    - by Lucas
    I have a visual C# 2010 express install. Built a .NET 4.0 dll that is signed. Now I need to get it into the GAC. Im on 64bit vista. Anyone know if there is a gacutil supporting the 4.0 framework yet? Any other suggestions on getting it into the GAC? I have tried drag and drop into C:\Windows\assembly, whenever I do, it appears to copy; however, it is not copied and does not produce any error message. I cannot create a setup/deployment project as it appears the express editions of visual studios do not have the ability.

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  • WCF RIA Services build error

    - by soren.enemaerke
    Hi I'm getting a strange error when building my WCF RIA Services Silverlight project in VS2008. In the output I have this message: C:\Program Files\MSBuild\Microsoft\Silverlight\v3.0\Microsoft.Ria.Client.targets(261,5): error : Failed to write the generated contents of 'C:\projects\[Path_To_Silverlight_Project]\Generated_Code\Analytics.Web.g.cs' to Visual Studio. ...and Visual Studio opens a dialog while building with the following: An editor or project is attempting to save a file that is modified in memory. Saving files during a build is dangerous and may result in incorrect build outputs in the future. Continue with save? The other members on my team seems to be doing just fine, but I can't get past this point (I can if I click 'Continue' which then generate the file just fine but I'm reluclant to do so). There must be some setup or similar that I'm missing here... PS: I'm currently on WinXP and WCF RIA Service beta

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  • Thrift client-server multiple roles

    - by dexter
    Hi, this is my first question, so sorry if the form is wrong! I'm trying to make thrift server (python) and client (c++). However I need to exchange messages in both direction. Client should register (call server's function and wait), and server should listen on same port for N (N- 100k) incoming connections (clients). After some conditions are satisfied, server needs to call functions on each client and collect results and interpret them. I'm little confused, and first questions is "can this be done in Thrift"? Second question is related to mechanism that will allow me bidirectional communication. I guess that I will need two services. One with client's functions other with server's. But I'm confused with calling code. I understand one way communication (calling functions from server), but with calling functions from client side I have a problem. Any suggestions??? Thanks!

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  • Implementing a Patricia Trie for use as a dictionary

    - by Regis Frey
    I'm attempting to implement a Patricia Trie with the methods addWord(), isWord(), and isPrefix() as a means to store a large dictionary of words for quick retrieval (including prefix search). I've read up on the concepts but they just aren't clarifying into an implementation. I want to know (in Java or Python code) how to implement the Trie, particularly the nodes (or should I implement it recursively). I saw one person who implemented it with an array of 26 child nodes set to null/None. Is there a better strategy (such as treating the letters as bits) and how would you implement it?

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  • Game cross-compiling and packaging

    - by Helltone
    Hi, Some friends and I wanted to develop a game. Any language will do. I've been programming in C for years, but never wrote a game before. One of us knows SDL a little bit. It would also be a nice excuse to learn Python+pygame. We wish our game to be 'standalone'. By standalone, I mean most users (at least Linux, Mac and Windows) will not have to manually download and install anything else apart from a package. It is ok if the installation automatically handles missing dependencies. If the packages contain binaries, we wish to be able to generate them using cross-compilation from Linux. How should we package and structure the project, and what language is best suited?

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  • What should I use - Mako or Django?

    - by mridang
    Hi guys, I'm making a website that mail users when a movie or a pc game has released. It isn't too complex - users can sign up, choose movies/music or a genre and save the settings. When the movie/music is released - it mails the user. Some other functionality too but this is the jist. Now, I've been working with Python for a bit but mainly in the area of console apps. For web: what should I use, the web framework Django or the templating engine Mako? I can't seem to decide between the two. :( Thanks

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  • pygtk - dynamically update the widgets taking input from the gtk combo box

    - by Webrsk
    On selecting value from 1 to 10 from gtk combox box it should populate the checkbox by taking combo box value as an input. Say for example if i select 5 then 5 checkbox will be generated. It works.. But the issue is after i selected 5 now im selecting next value as 3 from combo box then there 8 checkboxes are displayed. The old 5 checkbox didnt get replaced. Is there any way to refresh the vbox(which has the checkboxes) or update to a new value. Enviroment : FC10 , Glade 2 , Python 2.5 , GTK.

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  • Simplest language to make an interpreter for

    - by None
    I want to make an interpreter of a very simple language for practice. When I say simple I don't mean easy to use, I mean simple. Brainf**k is a good example of a language I want. I already have made a brainf**k interpreter in python (which is the language I would be using to write the interpreter). I would appreciate any suggestions of simple languages. Note: I don't want to make a compiler! I want to make an interpreter.

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  • Designing a data model in VS2010 and generating ORM code, application

    - by Kay Zed
    Simply put: I have a database design in my head and I now want to use Visual Studio 2010 to create a WPF application. Key is to use the VS2010 tools to take much as possible manual work out of my hands. -The database engine is SQLite -ORM probably through DBLINQ -Use of LINQ -The application can create new, empty database instances -Easily maintainable (changes in data model possible) Q- How do I start designing the database model (visually) in Visual Studio 2010? Should this be an xsd? Do I do this in a separate project? Q- Next, how can I make the most use of VS2010 code generation tools to generate a business layer? Q- I suppose the business layer will be added as a Data Source (in another project?) and from there it's a rather generic data binding solution? I tried finding clear examples of this but it's a jungle out there, the hunt for a solution is NOT converging to one clear method.... :_(

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  • Migrating from CPython to Jython

    - by itsadok
    I'm considering moving my code (around 30K LOC) from CPython to Jython, so that I could have better integration with my java code. Is there a checklist or a guide I should look at, to help my with the migration? Does anyone have experience with doing something similar? From reading the Jython site, most of the problems seem too obscure to bother me. I did notice that: thread safety is an issue Unicode support seems to be quite different, which may be a problem for me mysqldb doesn't work and needs to be replaced with zxJDBC Anything else? Related question: What are some strategies to write python code that works in CPython, Jython and IronPython

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  • this is my Receiving Email code,but can't Receiving Email .. (google-app-engine)

    - by zjm1126
    import logging, email from google.appengine.ext import webapp from google.appengine.ext.webapp.mail_handlers import InboundMailHandler from google.appengine.ext.webapp.util import run_wsgi_app class LogSenderHandler(InboundMailHandler): def receive(self, message): _subject = message.subject _sender=message.sender bodies = message.bodies('text/plain') allBodies = "" #for body in bodies: # allBodies = allBodies + "\n---------------------------\n" + body[1].decode() #m= mail.EmailMessage(sender="[email protected] ",subject="reply to "+_subject) #m.to = _sender #m.body =allBodies #m.send() message = mail.EmailMessage(sender="[email protected]", subject="Your account has been approved") message.to = _sender message.body = """ Dear Albert: Your example.com account has been approved. You can now visit http://www.example.com/ and sign in using your Google Account to access new features. Please let us know if you have any questions. The example.com Team """ message.send() application = webapp.WSGIApplication([LogSenderHandler.mapping()], debug=True) app.yaml: application: zjm1126 version: 1-2 runtime: python api_version: 1 inbound_services: - mail handlers: - url: /media static_dir: media - url: /_ah/mail/.+ script: handle_incoming_email.py login: admin - url: / script: a.py - url: /sign script: a.py - url: .* script: django_bootstrap.py i use my email:[email protected] send some words to [email protected] but i can't get a Receiving Email, why ??? thanks and this is the log:

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  • pdb show different variable values than print statements

    - by martin
    Hi, everyone. I am debugging a python module with homemade c extensions. The output seems correct when I print it with 'p' in pdb. But if I use a normal print statement or pickle it, the output is wrong. What could be causing pdb to show different values than normal execution? I can even step to the print statement in debug mode, and pdb will show the correct value but the program will print the wrong one. The problem seems to happen only when I have called a certain c extension earlier. Glad to post code if that helps. Thank you.

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  • Why does TheyWorkForYou (TWFY) web API always returns '{}'

    - by Tartley
    I'm calling a web API exposed by TheyWorkForYou (TWFI). http://www.theyworkforyou.com/api/ I'm using the Python bindings provided by twfython: http://code.google.com/p/twfython/ I wrote some code to call this API a few months ago, at which time it worked fine. But now I dig it out to run it again, no matter what query I ask of the API, it always returns '{}' (an empty dictionary). For example the following code, which should return a list of all MPs: from twfy import TWFY API_KEY = 'XXXXXXXXXXXXXXXXXXXXXX' twfy = TWFY.TWFY(API_KEY) print twfy.api.getMPs(output='js') Am I being really dumb? What else should I check?

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