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  • Ways to store data in .NET

    - by Audel
    I am looking for ways to store data in a windows form application in .NET. I want to make the input data of a system persistent, so when I close my program and open it again, the data is retrieved. Which ways are of doing this besides creating a linked database? Examples are gladly appreciated regards

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  • ByPassing Google App Engine SDK to allow black listed classes

    - by ivanceras
    Is there a way to circumbent google app engine sdk to allow the usage of classes that are not present in the GAE JRE white list? I know the app that I would be building will not run in appspot, but at least in my development server, I need to access a postgresql database(java.net.socket.*) and generate some files(java.io.FileWriter) in my development server.

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  • LINQ to SQL table naming

    - by Ivo
    I am using VS2010 and C# When I map/select my database tables with LINQ to SQL I have to option to change the "member" propery, but when i delete the table (because I changed something in the schema for example) and add it again the member value gets "reset". Is it possible to set/override this member programmaticly, so that I dont have to change it by hand everytime I mean the member option of '<'Table Name="dbo.table1" Member="table1"

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  • What does the exception "javax.servlet.jsp.JspException: Broken pipe" signify?

    - by Ruepen
    I'm getting the following error: javax.servlet.jsp.JspException: Broken pipe Now I have seen questions/answers with respects to the socket exception, but this error is coming from a different package. Any help is greatly appreciated. BTW, I am seeing quite a lot of these errors in a struts web app Weblogic Node logs and I am thinking that it has to do with end users closing their web browser before the page reloads/executes the next step (database transaction which takes quite a bit of time to execute, anywhere from 30 seconds to 4 mins).

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  • NHibernate does not update entity when repository is passed by constructor

    - by Alex
    Hi everybody, I am developing with NHibernate for the first time in conjunction with ASP.NET MVC and StructureMap. The CodeCampServer serves as a great example for me. I really like the different concepts which were implemented there and I can learn a lot from it. In my controllers I use Constructur Dependency Injection to get an instance of the specific repository needed. My problem is: If I change an attribute of the customer the customer's data is not updated in the database, although Commit() is called on the transaction object (by a HttpModule). public class AccountsController : Controller { private readonly ICustomerRepository repository; public AccountsController(ICustomerRepository repository) { this.repository = repository; } public ActionResult Save(Customer customer) { Customer customerToUpdate = repository .GetById(customer.Id); customerToUpdate.GivenName = "test"; //<-- customer does not get updated in database return View(); } } On the other hand this is working: public class AccountsController : Controller { [LoadCurrentCustomer] public ActionResult Save(Customer customer) { customer.GivenName = "test"; //<-- Customer gets updated return View(); } } public class LoadCurrentCustomer : ActionFilterAttribute { public override void OnActionExecuting(ActionExecutingContext filterContext) { const string parameterName = "Customer"; if (filterContext.ActionParameters.ContainsKey(parameterName)) { if (filterContext.HttpContext.User.Identity.IsAuthenticated) { Customer CurrentCustomer = DependencyResolverFactory .GetDefault() .Resolve<IUserSession>() .GetCurrentUser(); filterContext.ActionParameters[parameterName] = CurrentCustomer; } } base.OnActionExecuting(filterContext); } } public class UserSession : IUserSession { private readonly ICustomerRepository repository; public UserSession(ICustomerRepository customerRepository) { repository = customerRepository; } public Customer GetCurrentUser() { var identity = HttpContext.Current.User.Identity; if (!identity.IsAuthenticated) { return null; } Customer customer = repository.GetByEmailAddress(identity.Name); return customer; } } I also tried to call update on the repository like the following code shows. But this leads to an NHibernateException which says "Illegal attempt to associate a collection with two open sessions". Actually there is only one. public ActionResult Save(Customer customer) { Customer customerToUpdate = repository .GetById(customer.Id); customer.GivenName = "test"; repository.Update(customerToUpdate); return View(); } Does somebody have an idea why the customer is not updated in the first example but is updated in the second example? Why does NHibernate say that there are two open sessions?

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  • Associating enums with strings in C#

    - by boris callens
    I know the following is not possible because it has to be an int enum GroupTypes { TheGroup = "OEM", TheOtherGroup = "CMB" } From my database I get a field with incomprehensive codes (the OEM and CMB's). I would want to make this field into an enum or something else understandable. Because the target is readability the solution should be terse. What other options do I have?

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  • Is there a true all-in-one solution for PHP Development?

    - by Alex R
    I'm looking for a "SINGLE INSTALLER" solution for PHP Development. Is there anything out there which will give me a nice IDE, Web Server, Debugger, Database, etc, on a single install image (*.msi or *.exe)? This of course would be completely opposite of Eclipse PDT, which requires you to search and locate a bunch of additional components which never quite work together.

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  • PHP object exchange between servers

    - by bensiu
    I got script what read from database and manipulate it so on the end I got $result array... on one server is it possible to serialize this object and pass it to other script so this $result array could be available for other script on second server... I got on first server: return serialize ( $results ); and on second: $data = unserialize ( file_get_contents ( 'http://www.......com/reader.php' ) ); ...but there is no communication between .... What I am doing wrong ? Bensiu

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  • How to store data using core data in iphone?

    - by Warrior
    I am new to iphone development.I want to show a form a and store the contents in to a core data database after clicking the submit button.I have created a form.xcdatamodel and class events.h and events.m with reference to the apple docs.In some Sample codes the values are stored statically in the delegate class and they use core data delegate methods. But in my case the form view come after passing 2 views. I want to store the data entered here .How can i achieve it.Please help me out.Thanks.

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  • DataSet size best practices - are there any general rules?

    - by Galwegian
    I'm working on a desktop application that will produce several in-memory datasets as an intermediary before being committed to a database. Obviously I'm going to try to keep the size of these to a minimum, but are there any guidelines on thresholds I shouldn't cross for good functionality on an 'average' machine? Thanks for any help.

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  • How to select a row with a missing entry in historization?

    - by Viper
    from the following data basis i need to select all IDQ's which do not have an entry for the 11.11.2011. IDQ | DATE ---------------- 1 | 08.11.2011 1 | 09.11.2011 1 | 10.11.2011 1 | 12.11.2011 1 | 13.11.2011 i can't figure out how to express the sql select IDQ from TBL_WITH_IDQ T where not exists ( DATE = '11.11.2011' ) // sql does not the job Database is a Oracle 11g. maybe someone can help me?

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  • sql generate unique table/view name

    - by Claudiu
    I want to create some mad robust code. I want to take a query as a string, create a temporary view / table to store the results, use it, then drop the table. I want to use a name that is guaranteed to not already exist in the database. Is there an SQL command to generate a unique table name? I'm using postgresql if this is implementation-specific.

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  • Oracle 10g express edition import

    - by Jasim
    How can i import a DMP file into my oracle 10g expression edition database? I tried with imp but its showing an error: IMP-00010: not a valid export file, header failed verification IMP-00000: Import terminated unsuccessfully How can i solve this?

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  • Taking backup of data in a table.

    - by Rishabh Ohri
    Hi All, Is there some way to backup the data in a table in sql server by using sql scripts. Note: I dont want to take the backup of the whole database. And later on restore the same data back in case of any failure. Please suggest some solution.

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  • Listview...how to conditionally replace a value with a string

    - by GaryAmundson
    Hi, my app presents a listview, from a database cursor and XML, that needs to replace the values in a column with various words based on the integer value contained in the cursor. For example, if the value is -1, replace it with the word "Invalid", but if the value is = 0 then just display the value. I was under the impression this could magically be done via XML... TIA.

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  • Does table (string, string) require index?

    - by abatishchev
    In my database running on SQL Server 2008 R2 I have a special table for global variables: CREATE TABLE global_variables ( name NVARCHAR(50), value NVARCHAR(50) NOT NULL CONSTRAINT PK_global_variables PRIMARY KEY CLUSTERED ( name ASC ) WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] GO Does such table require indexing on value or not?

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  • Oracle for the SQL Server DBA guides?

    - by MattK
    I am looking for a reference for a SQL Server DBA who has to come up to speed on basic Oracle 11 DBA tasks: backup, recovery, user administration, etc. There seems to be some material on the web for the reverse: Oracle - SQL Server, but the only potentially useful resource I have found in a few searches is yet to be published: http://www.amazon.com/Oracle-Database-Administration-Microsoft-Osborne/dp/0071744312 Can anyone provide references to something currently available?

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