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• Qt vs .NET - plz no n00bs who don't know wtf they're talking about [closed]

  - by Pirate for Profit

  Man in all these Qt vs. .NET discussions 90% these people don't know WTF they're talking about. Trying to get a real comparison chart going before we embark on a major fucking project. And yes I'm drunk, and yes I use cocaine. Event Handling In Qt the event handling system you just emit signals when something cool happens and then catch them in slots, for instance emit valueChanged(int percent, bool something); and void MyCatcherObj::valueChanged(int p, bool ok){} blocking them and disconnecting them when needed, doing it across threads... once you get the hang of it, it just seems a lot more natural and intuitive than the way the .NET event handling is set up (you know, object sender, CustomEventArgs e). And I'm not just talking about syntax, because in the end the .NET delegate crap is the bomb. I'm also talking about in more than just reflection (because, yes, .NET obviously has much stronger reflection capabilities). I'm talking about in the way the system feels to a human being. Qt wins hands down i m o. Basically, the footprints make more sense and you can visualize the project easier without the clunky event handling system. I wish I could it explain it better. The only thing is, I do love some of the ease of C# compared to C++ and .NET's assembly architecture. That is a big bonus for modular projects, which are a PITA to do in C++. Database Ease of Doing Crap Also what about datasets and database manipulations. I think .net wins here but I'm not sure. Threading/Conccurency How do you guys think of the threading? In .NET, all I've ever done is make like a list of master worker threads with locks. I like QConcurrentFramework, you don't worry about locks or anything, and with the ease of the signal slot system across threads it's nice to get notified about the progress of things. Memory Usage Also what do you think of the overall memory usage comparison. Is the .NET garbage collector pretty on the ball and quick compared to the instantaneous nature of native memory management? Or does it just let programs leak up a storm and lag the computer then clean it up when it's about to really lag? However, I am a n00b who doesn't know what I'm talking about, please school me on the subject.

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• How to fix Index out of range exception on idatareader

  - by Phil

  Good morning stack overflow, I have been forced into using the idatareader as opposed to the sqldatareader which has .hasrows available. In my code I am attempting to handle nulls like this: reader = GetContent(pageid) While reader.Read If reader("content") IsNot DBNull.Value Then content = Replace(reader("content"), Chr(38) + Chr(97) + Chr(109) + Chr(112) + Chr(59) + Chr(98) + Chr(104) + Chr(99) + Chr(112) + Chr(61) + Chr(49), "") If reader("id") IsNot DBNull.Value Then contentid = reader("id") End If Else contentid = -1 content = String.Empty End If End While Outputcontent.Text = content I am getting an 'Index Out of Range Exception' here: If reader("content") IsNot DBNull.Value Then The database does 100% contain 'content'

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• HiLo vs Identity?

  - by Mendy

  This is the same question as: http://stackoverflow.com/questions/803872/hilo-or-identity Let's take the database of this site as an example. Lets say that the site has the following tables: Posts. Votes. Comments. What is the best strategy to use for it: Identity - which is more common. OR HiLo - which give best performance. Edit: if HiLo is the best, how the structure of the DB would be?

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• HELP: deploying applications that use LINQ to Entities.

  - by Luiscencio

  HI COMUNITY!!!! I want to use L2E since it s very convenient to my company's apps, I created a demo project, the demo does run on every machine but when I, lets say, press a button that has some code that uses the entity I get this error: specified store provider cannot be found in the configuration, or is not valid. note that I get this error only on machines that does not have VS2008 installed, on these machines (the ones with VS2008) the demo works well. any advice is appreciated. I am using MySql server with Mysql Conector 6.3 and the model is created with ADO.Net entitiy model. EDIT here is the complete error trace: See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box. ************** Exception Text ************** System.ArgumentException: The specified store provider cannot be found in the configuration, or is not valid. ---> System.ArgumentException: Unable to find the requested .Net Framework Data Provider. It may not be installed. at System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName) at System.Data.EntityClient.EntityConnection.GetFactory(String providerString) --- End of inner exception stack trace --- at System.Data.EntityClient.EntityConnection.GetFactory(String providerString) at System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString) at System.Data.EntityClient.EntityConnection..ctor(String connectionString) at System.Data.Objects.ObjectContext.CreateEntityConnection(String connectionString) at System.Data.Objects.ObjectContext..ctor(String connectionString, String defaultContainerName) at Projects.projectsEntities..ctor() at Projects.frmProjecstMain.btnGenerarProyectoDeGarantias_Click(Object sender, EventArgs e) at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e) at System.Windows.Forms.ToolStripButton.OnClick(EventArgs e) at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e) at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e) at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met) at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met) at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.ToolStrip.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) ************** Loaded Assemblies ************** mscorlib Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3603 (GDR.050727-3600) CodeBase: file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll ---------------------------------------- Projects Assembly Version: 1.0.0.0 Win32 Version: 1.0.0.0 CodeBase: file:///C:/Documents%20and%20Settings/jessica.carreon/Local%20Settings/Apps/2.0/1MLH514G.07M/RGBATG69.8AR/proj..tion_b0cb148e1dc400e0_0001.0000_738d35d08c548573/Projects.exe ---------------------------------------- System.Windows.Forms Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll ---------------------------------------- System Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll ---------------------------------------- System.Drawing Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll ---------------------------------------- MySql.Data Assembly Version: 6.3.0.0 Win32 Version: 6.3.0.0 CodeBase: file:///C:/Documents%20and%20Settings/jessica.carreon/Local%20Settings/Apps/2.0/1MLH514G.07M/RGBATG69.8AR/proj..tion_b0cb148e1dc400e0_0001.0000_738d35d08c548573/MySql.Data.DLL ---------------------------------------- System.Data Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll ---------------------------------------- System.Transactions Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.Transactions/2.0.0.0__b77a5c561934e089/System.Transactions.dll ---------------------------------------- System.Xml Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3082 (QFE.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll ---------------------------------------- System.Data.Entity Assembly Version: 3.5.0.0 Win32 Version: 3.5.30729.1 built by: SP CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Data.Entity/3.5.0.0__b77a5c561934e089/System.Data.Entity.dll ---------------------------------------- System.Core Assembly Version: 3.5.0.0 Win32 Version: 3.5.30729.1 built by: SP CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Core/3.5.0.0__b77a5c561934e089/System.Core.dll ---------------------------------------- System.Configuration Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll ---------------------------------------- System.EnterpriseServices Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.EnterpriseServices/2.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll ---------------------------------------- Microsoft.VisualBasic Assembly Version: 8.0.0.0 Win32 Version: 8.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll ---------------------------------------- ************** JIT Debugging ************** To enable just-in-time (JIT) debugging, the .config file for this application or computer (machine.config) must have the jitDebugging value set in the system.windows.forms section. The application must also be compiled with debugging enabled. For example: <configuration> <system.windows.forms jitDebugging="true" /> </configuration> When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box. here is the app.config: <?xml version="1.0" encoding="utf-8"?> <configuration> <configSections> </configSections> <connectionStrings> <add name="Projects.Properties.Settings.projectsConnectionString" connectionString="server=file-server;user id=root;database=projects" providerName="MySql.Data.MySqlClient" /> <add name="Projects.Properties.Settings.projectsBELO" connectionString="server=benitoldesk;user id=root;Password=ADMIN;persist security info=True;database=projects" providerName="MySql.Data.MySqlClient" /> <add name="projectsEntities" connectionString="metadata=res://*/projects.csdl|res://*/projects.ssdl|res://*/projects.msl;provider=MySql.Data.MySqlClient;provider connection string=&quot;server=file-server;User Id=root;database=projects;password=admin44ss04i)j0;Persist Security Info=True&quot;" providerName="System.Data.EntityClient" /> </connectionStrings> <appSettings> <add key="SecurityKey" value="Benito Lopez Dominguez" /> <add key="ClientSettingsProvider.ServiceUri" value="" /> </appSettings> <system.web> <membership defaultProvider="ClientAuthenticationMembershipProvider"> <providers> <add name="ClientAuthenticationMembershipProvider" type="System.Web.ClientServices.Providers.ClientFormsAuthenticationMembershipProvider, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" /> </providers> </membership> <roleManager defaultProvider="ClientRoleProvider" enabled="true"> <providers> <add name="ClientRoleProvider" type="System.Web.ClientServices.Providers.ClientRoleProvider, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" cacheTimeout="86400" /> </providers> </roleManager> </system.web> </configuration>

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• How to convert Msword file into a text file and storing it in Mysql - php joomla

  - by Vishal Shah

  Hey i want to convert MsWord doc file into text file - any code sample. And then i want to store it to in database MySql - any code. And also how to retrieve it in a same format tht was in Msword file using php joomla

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• Storing Twitter OAuth in MySQL

  - by nute

  I'm about to add a feature on my website that will post stuff to the users' twitter accounts. I read that storing an "OAuth" token is better than storing their usernames and passwords (which makes sense). What should I store in my MySQL database? The token, secret and username? Or just the token? What data type(s) would you use? How big are they? Thanks!

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• Prolog - ASSERT and RETRACT

  - by KP65

  I was wondering, I am aware you can use assert to add facts or rules or whatever if you have declared the predicate to be -:dynamic, but this only allows the changes that are made to be kept in that session only, e.g. if you close the prolog window then the database changes are lost. So I was wondering, is there any way of making it so that the assert and retract predicates can make permanent changes to the prolog .pl file? Thanks

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• iTextSharp: Writing RTF in a PDF document

  - by gllort

  Hello, I'm using iTextSharp (with C# and VS2008) to generate a report from a database table row. Generate PDF is not a problem... but when I try to add RTF text into the PDF I cant't find a way into iTextSharp object structure. How can I do it? Thanks a lot!

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• Dynamic sorting of tables on BIRT without javascript

  - by ebae

  I am using WebViewerExample as my reporting. I am designing reports within Eclipse using report designer. I have a table with several columns. Data is retrieved from database. Is there an easy way to dynamically sort the tables by clicking on the column header names? I tried to pass string as a sorting condition, but it ain't helping. Any ideas?

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• Microsoft ODBC driver for Oracle Syntax error or access violation (-2147217900)

  - by Jan

  I have a large VB program that connects to Oracle database. strCn = "Driver={Microsoft ODBC for Oracle};" & _ "SERVER=PSPROD;" Set Cn = New ADODB.Connection Cn.ConnectionString = strCn Cn.CursorLocation = adUseNone Cn.Open There are many users of my program so I have a table that contains each user's login name and their access rights to the various tables. I create a recordset of all users when the program is started and then select USERNAME and GRANTED_ROLE from the record set where USERNAME and PASSWORD are found. I use a "Set role 'GRANTED_ROLE' identified by 'password'" statment and Cn.Execute statement to set up the user's access rights. This is all done in a Module. On a form, I want to call a Stored Procedure that will SELECT, INSERT and UPDATE information into another schema's tables. I am able to call and run the stored procedure when I create a new connection to the database with this code: Dim cmd5040 As ADODB.Command Dim conn5040 As ADODB.Connection Dim param5040 As ADODB.Parameter Set conn5040 = New ADODB.Connection conn5040 = "Driver={Microsoft ODBC for Oracle};" & _ "SERVER=PSPROD; UID=XXXXXXX; PWD=XXXXXXXX" conn5040.Open Set cmd5040 = New ADODB.Command With cmd5040 .ActiveConnection = conn5040 .CommandType = adCmdStoredProc .CommandText = "S4115040_IMPORT_NEWBIDITEMSPES.S4115040_CheckTime" .Parameters.Append .CreateParameter(, adInteger, adParamInputOutput, 5) .Parameters.Append .CreateParameter(, adVarChar, adParamInputOutput, 400) End With cmd5040(0) = 0 cmd5040(1) = "" cmd5040.CommandTimeout = 300 cmd5040.Execute conn5040.Close However, I get the error message "-2147217900 [Microsoft][ODCB driver for Oracle]Syntax error or access violation" when I attempt to use the same connection ('Cn') when the program first started. My code is: Dim cmd5040 As ADODB.Command Dim param5040 As ADODB.Parameter Set cmd5040 = New ADODB.Command With cmd5040 .ActiveConnection = Cn .CommandType = adCmdStoredProc .CommandText = "S4115040_IMPORT_NEWBIDITEMSPES.S4115040_CheckTime" .Parameters.Append .CreateParameter(, adInteger, adParamInputOutput, 5) .Parameters.Append .CreateParameter(, adVarChar, adParamInputOutput, 400) End With cmd5040(0) = 0 cmd5040(1) = "" cmd5040.Execute I have worked with my DBA. She has given me direct grants and direct execute privliges and I am still get the error message. What am I doing wrong? Should I be able to use the original connection to run a stored procedure? Or must I create a second connection?

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• Adding events in Fullcalendar on CodeIgniter

  - by Naem Iqbal

  I just implemented Adam Shaw's popular calendar called 'fullcalendar' (http://arshaw.com/fullcalendar/) using CodeIgniter. But I require addition and other operations on events from my database. I was able to find one CakePHP plugin with the same purpose from here, http://bakery.cakephp.org/articles/view/events-plugin. Since I'm not in touch with CakePHP, Can anyone help with this on CodeIgniter..?

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• Silverlight: After adding table no datacontext classes are available for the new DomainService class

  - by Gabriel

  I'm using a Silverlight 4 WCF RIA Services demo application that uses LinqToSql, that works well. I add a new database table, move the new table to the LinqToSql designer and build the project I add a new DomainService class I get a dialog with the only option to create an empty DomainService and no DataContext classes are available. What am I missed? Thanks in advance Gabriel

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• spring MVC sample web app

  - by Don

  Hi, I'm looking for an example Spring MVC 2.5 web app that I can easily: Setup as a project in Eclipse Deploy to a local app server (using Ant/Maven) There are a couple of example applications included with the Spring distribution ('petclinic' and 'jpetstore'), but they don't provide any Eclipse project files (or a way to generate them). They also seem a bit complicated for my needs, e.g. require a local database to be setup. Thanks, Don

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• Random select rows via JPA

  - by Ke

  In Mysql, SELECT id FROM table ORDER BY RANDOM() LIMIT 5 this sql can select 5 random rows. How to do this via JPA Query (Hibernate as provider, Mysql database)? Thanks.

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• Transactions in codeigniter with multiple tables.

  - by Ethan

  Hey SO, I'm new to transactions in general, but especially with CodeIgniter. I'm using InnoDB and everything, but my transactions aren't rolling back when I want them to. Here's my code (slightly simplified). $dog_db = $this->load->database('dog', true); $dog_db->trans_begin(); $dog_id = $this->dogs->insert($new_dog); //Gets primary key of insert if(!$dog_id) { $dog_db->trans_rollback(); throw new Exception('We have had an error trying to add this dog. Please go back and try again.'); } $new_review['dog_id'] = $dog_id; $new_review['user_id'] = $user_id; $new_review['date_added'] = time(); if(!$this->reviews->insert($new_review)) //If the insert fails { $dog_db->trans_rollback(); throw new Exception('We have had an error trying to add this dog. Please go back and try again.'); } //ADD DESCRIPTION $new_description['description'] = $add_dog['description']; $new_description['dog_id'] = $dog_id; $new_description['user_id'] = $user_id; $new_description['date_added'] = time(); if(!$this->descriptions->insert($new_description)) { $dog_db->trans_rollback(); throw new Exception('We have had an error trying to add this dog. Please go back and try again.'); } $booze_db->trans_rollback(); //THIS IS JUST TO SEE IF IT WORKS throw new Exception('We have had an error trying to add this dog. Please go back and try again.'); $booze_db->trans_commit(); } catch(Exception $e) { echo $e->getMessage(); } I'm not getting any error messages, but it's not rolling back either. It should roll back at that final trans_rollback right before the commit. My models are all on the "dog" database, so I think that the transaction would carry into the models' functions. Maybe you just can't use models like this. Any help would be greatly appreciated! Thanks!

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• Parsing out information from a LinkedIn profile using VB Script

  - by Christopher J. Scharer

  Does anyone have an example that parses out the information from a LinkedIn profile using VB Script? I have a database which contains client information and I have been including the client Key for LinkedIn in hopes to have it automatically update some or possibly all of the information for that client. Sincerely, Christopher J. Schärer

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• TeamCity forgotten admin password - where to look?

  - by Schneider

  I need to recover/reset the admin password for JetBrain's TeamCity. I have full RDP access to the server so no problems there. It's just been 2 months since we used it so now I have forgotten my login - my usual ones don't work. It is setup without a database at the moment, so was hoping the usernames would just be in a file somewhere, but no luck finding it so far.

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• No Business Data Connectivity Service associated with current web context error

  - by Rob

  I am running on a new dev setup for SharePoint 2010 and trying to setup some External Content types. I think that I have setup BCS correctly (since I see it running in the central administration). When I go into SharePoint designer 2010 and try to setup a new External Content Type, I get the following error: "There is no Business Connectivity Service associated with the current web context." Am I missing something with the configuration or why am I not able to setup a new External Content Type to point to my existing SQL database

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• asp.net mvc tree view with checkbox

  - by mazhar

  Ok I am looking for a solution in mvc2 where i can have tree view generated where after that i can checked the nodes I want to enter the value in the database. Can anyone point me to something? Basically I am assigning features to a particular group.(I have a group admin whom I can assign the manage user add edit delete,manage groups delete,manage teacher add edit feature Can someone point me to some other technique that i can implement?

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• Ruby on Rails: models that do not have a table

  - by randombits

  What's the best way to create a model in Ruby on Rails that doesn't have an underlying implementation in as far as a database table goes? It's very common to write classes that perform behavior on a particular problem domain, yet can use some of the benefits that ActiveRecord has such as validation. Is it best to just create it as a module or helper? What is the best practice here?

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• varchar(255) to varchar(MAX)

  - by JD

  Is it possible to change a column type in a MS SQL 2008 database from varchar(255) to varchar(MAX) without having to drop the table and recreate? SQL Server Management Studio throws me an error every time I try to do it using that - but to save myself a headache would be nice to know if I can change the type without having to DROP and CREATE. Thanks

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• Sample for Full Calendar in jquery

  - by Prasad

  I am trying to integrate the jquery Full Calendar (http://arshaw.com/fullcalendar/) in my asp.net mvc application. I need to use this full calendar to add/edit/delete/show the events using the sql server database as backend. Do anyone have the sample code to implement the add/edit/delete events with this Full Calendar.?

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• PayPal Cannot send value to paypal

  - by preetu

  Hi.. I have created PayPal handler class now i can receive properly all IPN messages and all transaction successful.Now i need to keep track of my users which user send request then i need to update his database .I tried to send my application primary key to PayPal to get to know which user doing transaction then i tried to retrieve in IPN message but i cant retrieve what i sent my own value some value. Is it possible to send own value to PayPal or how should i update my DB...Thank you Adv.

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• In Rails, how to speed up machinist tests?

  - by Bryan Shen

  I'm replacing test fixtures with Machinist. But using Machinist to set up test data is very slow, because whenever a test method is run some new data are made by Machinist and saved to database. Is there any way to cache the data in memory so that using Machinist isn't so slow? Thanks, Bryan

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• "like" queries in ASP.net MVC

  - by sslepian

  How do I get wildcard text searches (like SQL's "like" statement) in ASP.net MVC using the edo entity framework? I assumed this would work: var elig = (from e in _documentDataModel.Protocol_Eligibility_View where e.criteria.Contains(query) select e); But it returns no results even when searching for a query string that's definitely in the database. What am I doing wrong?

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