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  • Is it possible to use ASP.NET Dynamic Data and SubSonic 3?

    - by James
    Is it possible to use ASP.NET Dynamic Data with SubSonic 3 in-place of Linq to SQL classes or the Entity Framework? MetaModel.RegisterContext() throws an exception if you use the context class that SubSonic generates. I thought I remembered coming across a SubSonic/Dynamic Data example back before SubSonic 3 was released but I can't find it now. Has anyone been able to get this to work?

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  • HTML Types - Learning Order?

    - by Gabe
    I've decided that today - as soon as this question is answered, in fact - I'm going to dive into learning HTML. But, looking online, I've noticed there are many types: HTML, XHTML, HTML5, and so on. So, which should I start with? In what order should I learn them? And, for that first language, where should I learn at?

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  • Master Data Management Update

    Oracle's Master Data Management suite has seen remarkable development progress in the past year and a half. Leveraging out-of-the-box integration to applications provided by Application Integration Architecture, the cost, risk and time it takes to implement an MDM solution has been cut in half. Oracle Applications are now 'MDM Aware', Data Quality tools have reached state-of-the-art status, and new hubs are coming on line. In this AppsCast, Pascal Laik, VP MDM Products discusses this progress, what it means for Oracle customers, and where we are going from here.

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  • How do I pass a string or data object between two view controllers?

    - by Jonathan
    In my last question i asked how to best send a string from one view controller to another, both which were on a navigation stack: http://stackoverflow.com/questions/2898860/pass-string-from-tableviewcontroller-to-viewcontroller-in-navigation-stack However I just realised I can either pass the path to the file in the app's document's folder as the first (the table view) has already accessed the data in the file should I pass viewcontroller the data to the pushed VC?

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  • Using SOUNDEX and DIFFERENCE to Standardize Data in SQL Server

    My client wants to standardize address information for existing and future addresses collected for their customers, particularly the street suffixes. The application used to enter and collect address information has the street suffix separated from the address field, but it is a textbox instead of a drop down list therefore things are not standardized. I know there are some options out there to standarize data, but they would like a less expensive alternative. Are there any functions in SQL Server that I can use to standardized data?

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  • Long Term Data Storage - Choosing A Media Type

    Choosing a long term data storage medium isn';t as easy as you may think. You might imagine that the data could be burnt to CD, locked in a cupboard and that it would last forever however unfortunatel... [Author: Chris Holgate - Computers and Internet - April 02, 2010]

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  • How to modify PropertyGrid at runtime (add/remove property and dynamic types/enums)

    - by salle55
    How do you modify a propertygrid at runtime in every way? I want to be able to add and remove properties and add "dynamic types", what I mean with that is a type that result in a runtime generated dropdown in the propertygrid using a TypeConverter. I have actually been able to do both those things (add/remove properties and add dynamic type) but only separately not at the same time. To implement the support to add and remove properties at runtime I used this codeproject article and modified the code a bit to support different types (not just strings). private System.Windows.Forms.PropertyGrid propertyGrid1; private CustomClass myProperties = new CustomClass(); public Form1() { InitializeComponent(); myProperties.Add(new CustomProperty("Name", "Sven", typeof(string), false, true)); myProperties.Add(new CustomProperty("MyBool", "True", typeof(bool), false, true)); myProperties.Add(new CustomProperty("CaptionPosition", "Top", typeof(CaptionPosition), false, true)); myProperties.Add(new CustomProperty("Custom", "", typeof(StatesList), false, true)); //<-- doesn't work } /// <summary> /// CustomClass (Which is binding to property grid) /// </summary> public class CustomClass: CollectionBase,ICustomTypeDescriptor { /// <summary> /// Add CustomProperty to Collectionbase List /// </summary> /// <param name="Value"></param> public void Add(CustomProperty Value) { base.List.Add(Value); } /// <summary> /// Remove item from List /// </summary> /// <param name="Name"></param> public void Remove(string Name) { foreach(CustomProperty prop in base.List) { if(prop.Name == Name) { base.List.Remove(prop); return; } } } etc... public enum CaptionPosition { Top, Left } My complete solution can be downloaded here. It works fine when I add strings, bools or enums, but when I try to add a "dynamic type" like StatesList it doesn't work. Does anyone know why and can help me to solve it? public class StatesList : System.ComponentModel.StringConverter { private string[] _States = { "Alabama", "Alaska", "Arizona", "Arkansas" }; public override System.ComponentModel.TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) { return new StandardValuesCollection(_States); } public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { return true; } public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) { return true; } } The method of using a TypeConverter works fine when you don't try to add the property at runtime, for example this code works without any problem, but I want to be able to do both. Please take a look at my project. Thanks!

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  • Possible form field types per model field type

    - by Jonathan
    Django's documentation specifies for each model field type the corresponding default form field type. Alas, I couldn't find in the documentation, or anywhere else, what form field types are possible per model field type. Not all combinations are possible, right? Same question for widgets...

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  • EXTRACT for TIMESTAMP types in SQLite3

    - by umuthorax
    Hi, It seems extract function is not supported by SQLite3 for timestamp types (ref). For example; select extract(year from l_shipdate) as l_year from ... gives the following error; Error: near "from": syntax error I wonder whether there is an alternative way to do this in SQLite3 (or through rewriting the SQL query). Thanks in advance,

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  • What's the best way to keep java app data stored redundantly in a file?

    - by Bijan
    If I have systems that are based on realtime data, how can I ensure that all the information that is current is redundantly stored in a file? So that when the program starts again, it uses this information to initialize itself back to where it was when it closed. I know of xstream and HSQLDB. but wasn't sure if this was the best option for data that needs to be a literal carbon copy.

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  • AWS EC2 Oracle RDB - Storing and managing my data

    - by llaszews
    When create an Oracle Database on the Amazon cloud you will need to store you database files somewhere on the EC2 cloud. There are basically three places where database files can be stored: 1. Local drive - This is the local drive that is part of the virtual server EC2 instance. 2. Elastic Block Storage (EBS) - Network attached storage that appears as a local drive. 3. Simple Storage Server (S3) - 'Storage for the Internet'. S3 is not high speed and intended for store static document type files. S3 can also be used for storing static web page files. Local drives are ephemeral so not appropriate to be used as a database storage device. The leaves EBS which is the best place to store database files. EBS volumes appear as local disk drives. They are actually network-attached to an Amazon EC2 instance. In addition, EBS persists independently from the running life of a single Amazon EC2 instance. If you use an EBS backed instance for your database data, it will remain available after reboot but not after terminate. In many cases you would not need to terminate your instance but only stop it, which is equivalent of shutdown. In order to save your database data before you terminate an instance, you can snapshot the EBS to S3. Using EBS as a data store you can move your Oracle data files from one instance to another. This allows you to move your database from one region or or zone to another. Unfortunately, to scale out your Oracle RDS on AWS you can not have read only replicas. This is only possible with the other Oracle relational database - MySQL. The free micro instances use EBS as its storage. This is a very good white paper that has more details: AWS Storage Options This white paper also discusses: SQS, SimpleDB, and Amazon RDS in the context of storage devices. However, these are not storage devices you would use to store an Oracle database. This slide deck discusses a lot of information that is in the white paper: AWS Storage Options slideshow

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  • Using NumPy arrays as 2D mathematical vectors?

    - by CorundumGames
    Right now I'm using lists as position, velocity, and acceleration vectors in my game. Is that a better option than using NumPy's arrays (not the standard library's) as vectors (with float data types)? I'm frequently adding vectors and changing their values directly, then placing the values in these vectors into a Pygame Rect. The vector is used for position (because Rects can't hold floats, so we can't go "between" pixels), and the Rect is used for rendering (because Pygame will only take in Rects for rendering positions).

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  • Is it bad practice to use an enum that maps to some seed data in a Database?

    - by skb
    I have a table in my database called "OrderItemType" which has about 5 records for the different OrderItemTypes in my system. Each OrderItem contains an OrderItemType, and this gives me referential integrity. In my middletier code, I also have an enum which matches the values in this table so that I can have business logic for the different types. My dev manager says he hates it when people do this, and I am not exactly sure why. Is there a better practice I should be following?

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  • Yet Another SQL Strategy for Versioned Data

    There is a popular design for a database that requires a built-in audit-trail of amendments and additions, where data is never deleted, but merely superseded by a later version. Whilst this is conceptually simple, it has always made for complicated SQL for reporting the latest version of data. Alex joins the debate on the best way of doing this with an example using an indexed view and the filtered index.

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  • Can one create Sized Types in Scala?

    - by Jens Schauder
    Is it possible to create types like e.g. String(20) in scala? The aim would be to have compiler checks for things like: a: String(20) b: String(30) a = b; // throws a compiler exception when no implicit conversion is available b= a; // works just fine Note: It doesn't need to be/named String

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