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  • MVC pattern and (Game) State pattern

    - by topright
    Game States separate I/O processing, game logic and rendering into different classes: while (game_loop) { game->state->io_events(this); game->state->logic(this); game->state->rendering(); } You can easily change a game state in this approach. MVC separation works in more complex way: while (game_loop) { game->cotroller->io_events(this); game->model->logic(this); game->view->rendering(); } So changing Game States becomes error prone task (switch 3 classes, not 1). What are practical ways of combining these 2 concepts?

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  • Microsoft ACE OLEDB provider throws could not find installable ISAM exception

    - by Michael Stoll
    I'm trying to read Excel spreadsheets with a 64bit Process. Therefore I use the 64 bit Version of Micorosft Access Database Engine 2010. The following code var cs = @"Provider=Microsoft.ACE.OLEDB.12.0;" + @"Data Source=C:\test.xls;" + @"Extended Properties=""Excel 14.0;"""); con = new OleDbConnection(cs); con.Open(); throw an Exception: Could not find installable ISAM Using google I found a lot of questions about this exception. But they refer to JET and seem not apply to my problem. Any recommendations?

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  • Rails 3 Flash Uploader

    - by klynch
    I am trying to get Uploadify working with Rails 3. However, I can't insert the middleware with the correct arguments. This is the Rails 2 way: ActionController::Dispatcher.middleware.insert_before( ActionController::Session::CookieStore, FlashSessionCookieMiddleware, ActionController::Base.session_options[:key] ) This is what I have so far for Rails 3: Rails.application.config.middleware.insert_before( Rails.application.config.session_store, FlashSessionCookieMiddleware, Rails.application.config.session_options[:key] ) However, this gives: kevin$hephaestus:$exposure [1035 | 0]% rake middleware (in /Users/kevin/Projects/exposure) rake aborted! protected method `session_options' called for #<Rails::Application::Configuration:0x101eb28d0> (See full trace by running task with --trace) zsh: exit 1 rake middleware When I comment out the session_options argument, the middleware is successfully inserted, but it can't do what it is supposed to. Any suggestions?

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  • Any serious problems when making an old java web app run on new IE 8 browser?

    - by pinichi
    I need make an quick estimation on project (not sure we got): It's an old banking CMS java web app: Server: jdk5, weblogic 9. Client: winXP, Ie6. It was design only for use with ie6 but now we need make it also run well on new client: ie8,ie7 on win7. I understand the most difference is the client: DOM and CSS. But my problem is we hasn't been worked with ie8, and I have not enough time to build an testing environment because our developing environment is not ready to make test (its remoting completely, and managed by another partner) Any experience or suggestion to help me weighing this task need will be welcomed.

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  • Unix RPC programming

    - by Abhi
    Heyy all, I needed some help with ONC RPC programming. My task is to create two-tier client-server architecture wherein one main server (something like a directory) keeps a track of level-two servers and acts as a lookup; the level-two servers exposing some trivial functions, and finally, the clients for level-two servers. The clients ask the directory where a server is located, and then communicate with it. Using RPCGEN, we can create a pair of client-server code; however, the clients in this case need to have stubs for the directory as well as the level-two functions. Being a newbie to RPC, I'm having trouble conceptualizing the way I should code this. How can I call a function from a different server if a client is generated using a different IDL ? Any pointers would be appreciated :) Regards, Abhi

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  • How can I transfer output that appears on the console and format it so that it appears on a web page

    - by lojayna
    package collabsoft.backlog_reports.c4; import java.sql.CallableStatement; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.Statement; //import collabsoft.backlog_reports.c4.Report; public class Report { private Connection con; public Report(){ connectUsingJDBC(); } public static void main(String args[]){ Report dc = new Report(); dc.reviewMeeting(6, 8, 10); dc.createReport("dede",100); //dc.viewReport(100); // dc.custRent(3344,123,22,11-11-2009); } /** the following method is used to connect to the database **/ public void connectUsingJDBC() { // This is the name of the ODBC data source String dataSourceName = "Simple_DB"; try { // loading the driver in the memory Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); // This is the connection URL String dbURL = "jdbc:odbc:" + dataSourceName; con = DriverManager.getConnection("jdbc:mysql://localhost:3306/Collabsoft","root",""); // This line is used to print the name of the driver and it would throw an exception if a problem occured System.out.println("User connected using driver: " + con.getMetaData().getDriverName()); //Addcustomer(con,1111,"aaa","aaa","aa","aam","111","2222","111"); //rentedMovies(con); //executePreparedStatement(con); //executeCallableStatement(con); //executeBatch(con); } catch (Exception e) { e.printStackTrace(); } } /** *this code is to link the SQL code with the java for the task *as an admin I should be able to create a report of a review meeting including notes, tasks and users *i will take the task id and user id and note id that will be needed to be added in the review *meeting report and i will display the information related to these ida **/ public void reviewMeeting(int taskID, int userID, int noteID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL report_review_meeting(?,?,?)}"); callableStatement.setInt(1,taskID); callableStatement.setInt(2,userID); callableStatement.setInt(3,noteID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } ////////////////////////////////// ///////////////////////////////// public void allproject(int projID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL all_project(?)}"); callableStatement.setInt(1,projID); //callableStatement.setInt(2,userID); //callableStatement.setInt(3,noteID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } /////////////////////////////// /** * here i take the event id and i take a string report and then * i relate the report with the event **/ public void createReport(String report,int E_ID )// law el proc bt return table { try{ Statement st = con.createStatement(); st.executeUpdate("UPDATE e_vent SET e_vent.report=report WHERE e_vent.E_ID= E_ID;"); /* CallableStatement callableStatement = con.prepareCall("{CALL Create_report(?,?)}"); callableStatement.setString(1,report); callableStatement.setInt(2,E_ID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); }*/ } catch(Exception e) { System.out.println("E"); System.out.println(e); } } /** *in the following method i view the report of the event having the ID eventID **/ public void viewReport(int eventID)// law el proc bt return table { try{ CallableStatement callableStatement = con.prepareCall("{CALL view_report(?)}"); callableStatement.setInt(1,eventID); ResultSet resultSet = callableStatement.executeQuery(); // or executeupdate() or updateQuery ResultSetMetaData rsm = resultSet.getMetaData(); int numOfColumns = rsm.getColumnCount(); System.out.println("lojayna"); while (resultSet.next()) { System.out.println("New Row:"); for (int i = 1; i <= numOfColumns; i++) System.out.print(rsm.getColumnName(i) + ": " + resultSet.getObject(i) + " "); System.out.println(); } } catch(Exception e) { System.out.println("E"); } } } // the result of these methods is being showed on the console , i am using WIcket and i want it 2 be showed on the web how is that done ?!

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  • How to outperform this regex replacement?

    - by spender
    After considerable measurement, I have identified a hotspot in one of our windows services that I'd like to optimize. We are processing strings that may have multiple consecutive spaces in it, and we'd like to reduce to only single spaces. We use a static compiled regex for this task: private static readonly Regex regex_select_all_multiple_whitespace_chars = new Regex(@"\s+",RegexOptions.Compiled); and then use it as follows: var cleanString= regex_select_all_multiple_whitespace_chars.Replace(dirtyString.Trim(), " "); This line is being invoked several million times, and is proving to be fairly intensive. I've tried to write something better, but I'm stumped. Given the fairly modest processing requirements of the regex, surely there's something faster. Could unsafe processing with pointers speed things further?

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  • Base class for windows service

    - by user187020
    My new project has a design in which there are number windows services for performing different tasks. I have been given a task to create base class from which all of the windows service will inherit. This base class will perform common functions like creating instances of other windows services by iterating through the config file (may be like Activator.CreateInstance), do event logging on onStart, onStop etc. and may contain some more functionality. Before I start developing stuff, wondering if there is any pattern already in place or someone has good understanding of how to implement this kind of functionality. Any help appreciated.

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  • How to get users to read error messages?

    - by FX
    If you program for a nontechnical audience, you find yourself at a high risk that users will not read your carefully worded and enlightening error messages, but just click on the first button available with a shrug of frustration. So, I'm wondering what good practices you can recommend to help users actually read your error message, instead of simply waiving it aside. Ideas I can think of would fall along the lines of: Formatting of course help; maybe a simple, short message, with a "learn more" button that leads to the longer, more detailed error message Have all error messages link to some section of the user guide (somewhat difficult to achieve) Just don't issue error messages, simply refuse to perform the task (a somewhat "Apple" way of handling user input) Edit: the audience I have in mind is a rather broad user base that doesn't use the software too often and is not captive (i.e., not an in-house software or narrow community). A more generic form of this question was asked on slashdot, so you may want to check there for some of the answers.

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  • Can't finish Eclipse Plug-in Project Wizard when choosing RCP

    - by Jens Schauder
    I'm trying create a RCP Application with Eclipse, but I can't get past the 'Content' screen of the New Plug-in Project Wizard. When I select 'yes' for "Rich Client Application, Would you like to create a rich client application" it disables the Next and the Finish Button. I first thought it is due to my target platform which is Eclipse 3.2, but changing that doesn't make a difference. On the top of the screen only one task is displayed (now warnings about missing or incompatible information): Enter the data required to generate the plug-in My Eclipse Version is 3.5 Any ideas? Since it was asked. A screenshot can be found here: http://www.flickr.com/photos/jensschauder/4535101973/

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  • Troubleshooting source of heavy resource-usage on a server 2008 running multiple sites

    - by batman_man
    Hi, I am running about 10 asp.net websites on a hosted virtual server. The server runs Server 2008 - each website is backed by its own database running on SQL server 2008 on the same box. Lately the box has seemed really slow. The only kind of discovery i could think of doing was looking in the task manager, where i can see w3wp and sqlserver.exe jumping to 40% cpu usage every 5-10 seconds. What are the steps i can take to determine which of my websites is taking these resources and or what database is getting hit the most? I have of course ssms installed on the machine as well. As you can tell, my sysadmin skills are very very limited - any help would be much appreciated.

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  • Will it be possible to use any asp.net and silverlight controls in Intraweb XII?

    - by user193655
    I am researching a lot on intraweb, I read that in Intraweb XII (when will this be released?) it will be possible to have: 1) "silverlight enabled controls" (mentioned here, this is the old IW XI roadmap anyway silverlight task has been moved to XII now) 2) "IntraWeb XII [...] will contain the integration with CrossTalk and ASP.NET" (mentioned here, check for Intraweb XII paragraph). Now I don't understand what this mean in detail. I think IW is very cool, but it lacks a good choice of components, there is only one vendor (TMS) that makes good components, but of course one can wonder "why to be limited to one vendor when I can use more components from more vendors"? So does anyone (ideally from IW team, or that really knows the inner workings of IW XII, I mean the details of the roadmap, since XII is not being developed yet) know what the bold sentences above mean? Will this mean I can use inside IW 3rd party components from any ASP.NET and Silverlight vendor like Telerik, DevExpress, ComponentOne, and many, many, more?

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  • When to use UserControl vs. Control in Silverlight?

    - by Dov
    I'm just getting my feet wet in Silverlight, and don't really understand the differences and pros/cons of creating a UserControl vs. creating a Control for the same task (as in when you right click on a selection in Expression Blend, for instance). It seems like selecting "Make Into Control" just creates a new template for the base type you specify, whereas creating a UserControl creates a whole new base class. Is that correct? In this particular instance, I'm creating a custom text box control that only takes numbers, and divides itself into 3 sections, storing 3 values into separate properties as pictured below. In this particular case, which would be best? Update (Additional Question): Why can't I use Template Binding with a UserControl, but I can with a Control? That's one reason I thought that making a UserControl might not be the right decision.

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  • SSRS 2008 Installation Guidelines/Best Practices?

    - by Brad Bowman
    I know I have seen recommendations for installing SSRS 2005 and it stated that you should separate SSRS from the DB Engine that hosts the data sources for your reports, that you should not install them on the same server. Is there any documentation for SSRS 2008 that provides guidelines/best practices for installation? I am assuming that the same holds true for SSRS 2008 as it did for SSRS 2005 but have not seen it specifically stated anywhere. We have a project that will utilize SSRS 2008 and there is a difference of opinion on where to install it, on it's own dedicated server or on the same SQL Server as the report data sources. If there is a link to any documentation that could be provided it would be gratefully appreciated, all I am finding besides what is in BOL refers to 2005. Thanks in advance!

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  • CSS file pathing problem

    - by Alan Harris-Reid
    Hi there, When designing a HTML template in my favorite editor (TextPad at the moment) I can view my code in a browser by pressing F11 or the appropriate toolbar button. I have my common css rules in a separate file so my HTML contains the code: <link rel="stylesheet" href="commoncss.css" type="text/css"> This works when the .css file is in the same folder as the .html file, or if I fully path the .css file in the href property, eg. ///c:/mycssfolder/commoncss.css However, in a 'live' situation I want the .css file to reside in a common folder which is accessible from a number of .html files (eg. href='css/commoncss.css', where the css folder is configured at web-server level). How can I achieve this design vs. live dilemma without copying css file to all .html folders (and all the maintenance headaches that comes with it)? I am using Python 3.1 with Jinja2, but I guess this problem is applicable across any language and template-engine. Any help would be appreciated. Alan

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  • Dump characters (glyphs) from TrueType font (TTF) into bitmaps

    - by jpatokal
    I have a custom TrueType font (TTF) that consists of a bunch of icons, which I'd like to render as individual bitmaps (GIF, PNG, whatever) for use on the Web. You'd think this is a simple task, but apparently not? There is a huge slew of TTF-related software here: http://cg.scs.carleton.ca/~luc/ttsoftware.html But it's all varying levels of "not quite what I want", broken links and/or hard to impossible to compile on a modern Ubuntu box -- eg. dumpglyphs (C++) and ttfgif (C) both fail to compile due to obscure missing dependencies. Any ideas?

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  • 3rd Party Document Management Service

    - by Element
    I am developing an asp.net application that requires users to upload/view various documents. Rather then reinvent the wheel I was thinking about using a 3rd party service like Scribd to handle these documents and integrate it into my app via their API; I really like their ipaper viewer too. My concern is some of these documents will be sensitive data. Even though Scribd's FAQ says they are equipped to handle sensitive information, I am a little hesitant to trust an unpaid service that lacks an SLA. Has anyone used Scribd successfully for a similar task? Or can anyone recommend a better document management service?

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  • How to kill msvsmon.exe when finished remote debugging?

    - by dferraro
    Hi, We are a .NET LOB shop using MS CRM as our CRM platform. To this end, we many times a day during development phases are using remote debugging due to 2 connection limit to the server. We are able to setup remote debugging without logging onto the machine by using PsExec. This works great - but how the heck do we kill the remote debugger for that user, once we are finished debugging? In fact, not even sure how to kill the remote debugger in general, even when manually opening it... without remoting into server and using task manager, or keeping the server open and doing File-Exit on the debugger. Any advice?

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  • SubSonic-based app that connects to multiple databases

    - by Fervelas
    Hello there, I currently developed an app that connects to SQL Server 2005 database, so my DAL objects where generated using information from that DB. It will also be possible to connect to an Oracle and MySQL db, all with the same table structures (aside from the normal differences in fields, such as varbinary(max) in SQL Server and BLOB in Oracle, and so on). For this purpose, I already defined multiple connection strings and multiple SubSonic providers for the different DB's the app will run on. My question is, if I generated my objects using a SQL Server database, should the generated objects work transparently with the other DB's or do I need to generate a different DAL for each database engine I use? Should I be aware of any possible bugs I may encounter while performing these operations? Thanks in advance for any advice on this issue.

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  • Extract Email Attachments from Outlook (exchange server) using C#

    - by ChokkaMedex
    Extract Email Attachments from Outlook (exchange server) using C# I need to run a script or Service - Which can automatically deduct the attachment file from a Specific Email Id ( [email protected]). Attachment file will be .zip format. I need to Unzip this file.. I need to do this task completely in an automated format. On an average, I will receive only one email in a week. I need to write the program in C#.Net...! Kindly help me by sharing your logics ... Many thanks in advance..!

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  • How to improve my Python regex syntax?

    - by FarmBoy
    I very new to Python, and fairly new to regex. (I have no Perl experience.) I am able to use regular expressions in a way that works, but I'm not sure that my code is particularly Pythonic or consise. For example, If I wanted to read in a text file and print out text that appears directly between the words 'foo' and 'bar' in each line (presuming this occurred one or zero times a line) I would write the following: fileList = open(inFile, 'r') pattern = re.compile(r'(foo)(.*)(bar)') for line in fileList: result = pattern.search(line) if (result != None): print result.groups()[1] Is there a better way? The if is necessary to avoid calling groups() on None. But I suspect there is a more concise way to obtain the matching String when there is one, without throwing errors when there isn't. I'm not hoping for Perl-like unreadability. I just want to accomplish this common task in the commonest and simplest way.

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  • Winforms Which Design Pattern / Agile Methodology to choose

    - by ZedBee
    I have developed desktop (winforms) applications without following any proper design pattern or agile methodologies. Now I have been given the task to re-write an existing ERP application in C# (Winforms). I have been reading about Domain Driven Design, scrum, extreme programming, layered architecture etc. Its quite confusing and really hard (because of time limitations) to go and try each and every method and then deciding which way to go. Its very hard for me to understand the bigger picture and see which pattern and agile methodology to follow. To be more specific about what I want to know is that: Is it possible to follow Domain Driven Design and still be agile. Should I choose Extreme programming or scrum in this specific scenario Where does MVP and MVVM fits, which one would be a better option for me

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  • How do I get Nant to use the 4.0 compiler to target .Net 3.5

    - by Rory Becker
    Yes I know that sounds a little bit crazy, but I've got .Net 3.5 deployed in the field and I'd like to use the new 4.0 compiler to target it. There are several new syntactic sugar features in the latest versions of Vb.Net and C# which I would like to use,but I am unable (just yet) to enforce a new version of the .Net framework and CLR on my client base. Before the nay sayers jump in with both feet... I have just successfully used Studio 2010 to compile a 3.5 targeted app which used VB.Net auto properties (A new feature in VB.Net 10) so I know the compilers are capable somehow. So back to my question.... How do I convince Nant to use the 4.0 compiler, but to target .Net 3.5 (CLR 2.0) Update: I am using the csc and vbc tasks and not the Solution task. although I'd settle for an answer on how to do this direct with the compilers at this point.

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  • setDelegate:self, how does it work?

    - by fuzzygoat
    I have a query regarding how delegates work. My understanding was that delegates take responsibility for doing certain tasks on behalf of another object. locationManager = [[CLLocationManager alloc] init]; [locationManager setDelegate:self]; [locationManager setDistanceFilter:kCLDistanceFilterNone]; [locationManager setDesiredAccuracy:kCLLocationAccuracyBest]; [locationManager startUpdatingLocation]; Am I right in thinking that in the example code above that the instance of CLLocationManager is created on a new thread so that it can get on with trying to find the location information it needs. When it completes its task (or encounters an error) it calls-back using the appropriate methods located in self e.g. locationManager:didUpdateToLocation:fromLocation: Essentially locationManager sends messages to self (which conforms to the correct delegate protocol) when things happen cheers gary

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  • LuaInterface and 64Bit

    - by Skintkingle
    Ok i'm currently using LuaScript v5.1 in a Game engine i'm using. and the handy LuaInterface that comes along with it. i've tested it on a range of systems running a range of OS's. LuaInterface seems to fail on 64bit Operating Systems. Could anyone point me to a 64bit Compiled LuaInterface.dll, or is there any alternative to the LuaInterface that can be used, because LuaInterface is extremely useful and i dont think i would be able to write a more extensive interface by myself using lua51. (I'm not that good, sadly) Any help or links would be greatly appreciated. Thanks alot guys!

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