The IHttpHandler interface is implemented by all the handlers. The interface consists of one property called IsReusable. The IsReusable property gets a value indicating whether another request can use the IHttpHandler instance. The method ProcessRequest() allows you to process the current request. This is the core place where all your code goes. This method receives a parameter of type HttpContext
VoIP using standard ITU (International Telecommunication Union) H.323 standard for communication. H.323 standard consists of components, protocol, and procedures that provide multimedia communication...
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How to Create Interfaces in C# / Interfaces in C#An interface defines a set of members, such as properties and procedures that classes and structures can implement. The interface defines only the signatures of the members and not their internal workings.Interface definitions are enclosed within the Interface and End Interface statements in Visual Basic, they are enclosed within parenthesis in C# (
As social media spreads, web applications need to get smarter. They have to strike up a conversation with each visitor - and become sociable.
Part of the next evolution of the web - Web 3.0 to some - is claimed to be the Semantic Web, which enables websites to provide information about what information and functionality [...]
The Linux kernel includes drivers for many popular PCI wireless cards, PCMCIA wireless adapters, and USB wireless adapters. On Ubuntu systems, wireless Ethernet interfaces are configured in the same way as wired Ethernet interfaces.If no Linux driver is available for your wireless card, all is not lost. Thanks to the cleverness of the folks in the open source community, a Linux kernel module and r
El futuro no esta muy lejos, ahora ya es mas común tener dispositivos móviles con pantallas táctiles, los efectos que vemos en la televisión cada vez están dejando de ser ficción para convertirse en realidad.
En Smashing Magazine han recopilado una serie de 10 interfaces de usuarios futuristas, todas son aun conceptos pero no están muy [...]
La gente de SmashingMagazine ha recopilado 10 de los más impresionantes interface de usuario que pueden hacerse realidad en un futuro. Lo que queda realmente claro es que los periféricos desaparecen dejando paso a las manos, y es que como todo, nos encanta tocar, sentir e involucrarnos con lo que hacemos. ¿Cual te ha gustado [...]
Here are some free Cisco certification exam practice questions to help you be ready for total success on exam day! Answers are at the bottom of the page. Enjoy!CCNA Certification And CCENT Certification:You want to hardcode the first 12 ports on a Cisco switch to all run at 100 MBPS and full-duplex. What single command will allow you to do this?CCNA Security Certification / CCNP ISCW Exam:What's t
//This demonstrates how easy it is to get
//The details of each Network Interface on your system.
//and even how to get the bytes sent and received
//in just a few lines
using System.Net.NetworkInformation;
private void test()
{
NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface nic in nics)
{
Debug.WriteLine(nic.Description);
Debug.WriteLine(nic.Na
Purpose Generally speaking, interfaces are where functions in a system can be executed. In the context of SAP Exchange Infrastructure, only the following interfaces are relevant: · Interfaces designed for message exchange between application systems · Interfaces used by a cross-component integration process to receive or send messages, or both Starting with a cross-system inte
Purpose By using platform-independent message interfaces you can define the type of communication and the data to be exchanged before you actually implement your cross-system process. See also: Introduction to Interface Development. Overview The following graphic displays the class model for message interfaces in the Integration Builder: As with all repository objects, message interfaces are
Use A message type comprises a data type that describes the structure of a message. At the following points in SAP Exchange Infrastructure you can refer to the message to be exchanged at runtime by using the message type: · More than one message interface can use the same message type. For example, an asynchronous outbound message interface and an asynchronous inbound message interface c
Interfaces are used to integrate external systems and data conversion in Oracle Applications.These can be used to either transfer data from Oracle Applications to a Flat File or Data from Legacy System to Oracle Applications.There are two types of Interfaces. Inbound and Outbound Interfaces.Inbound Interfaces are used to transfer data from external system to Oracle Applications.Outbound Interfaces
In every Web Dynpro component, the creation procedure implements an interface. This component interface contains exactly one interface controller and at least one interface view (for more information, see Interfaces of aWeb Dynpro Component in the Architecture manual). The interface controller contains a context, events and methods. The interface views of the component interface have no direct
Use You can remove the assignment of an interface to a particular action. Procedure To deassign an interface, select the table line for the interface concerned and choose Delete Selected Lines ( ). Ensure that the interface is not part of a connection in an integration scenario before removing the assignment. Otherwise, this will lead to inconsistencies in the integration scenario. For mor
Security Detection interfaces for airport facilities
Security officials of U.S. airports who stand near and guard various checkpoint locations have most likely never thought of thems
Networked security interfaces for schools
If one observes the standards of educational institutions in our time they will quickly realize that the quality of academic programs has becom
Pra quem desenvolve ou quer demonstrar alguma idéia de interface, o Yahoo! Developer Network disponibilizou gratuitamente em seu site um pacote de imagens com padrões de elementos para este tipo de tarefa. Stencil de padrões usados no iPhone Além do iPhone, há ainda tamanhos de banner de publicidade, resolução de displays, botões, menus, calendários, gráficos, formulários,
Each component has an interface in order to enable communication between Web Dynpro components and to enable a component to be called up by a user. This interface consists of two parts: Interface View of a Window Contained in a Component The interface view of a Web Dynpro window is used to link a window with a Web Dynpro application that can be called by the user. An embedded component can al
Come see how customizable user interfaces were created by extending XAML in a way that integrates various content formats into a single consistent UI. Learn how to build an effective UI, extend XAML, build a Windows Presentation Foundation and Microsoft Silverlight application that can consume extended XAML, and much more.
Speakers: Jimmy Kim, Laurence MoroneyRead more about this video…Want to c
We have scheduled walk-in on Saturday i.e.07th June,2008 at our Silicon Interfaces Mumbai office with prior appointment for Sr.Engineers for Dot Net Group & Graphics Designer, C++ & Java . Look...
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We have scheduled walk-in on Saturday i.e.31st May,2008 at our Silicon Interfaces Mumbai office with prior appointment for Sr.Engineers for Dot Net Group & Graphics Designer. Look into the...
For more info on latest job openings and other career related information visit my site
Use Facets enable you to restrict the value range of a data type in XML schema to a particular subset. This enables you to determine exactly which value is expected in a special case for a simple data type, an element, or an attribute. For example: · A telephone number (using a pattern on a string) · A selection of permitted values, for example to classify the different classes
Interfaces in WebSphere Integration Developer
Interfaces in WID are used for exchanging data between different components. An interface has an input and output of a component. Interfaces are created...
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"Web 2.0 has brought many wonderful innovations and ideas to the Internet. We can no longer imagine the web without a social dimension, and we can no longer imagine an online world that is read-only - it is now a read/write web full of user-generated content. But there is another fairly recent innovation, which might have just as profound implications. We're speaking of the contextual user interfa
The HL-2170W is ideal for home or home office printer sharing. The HL-2170W offers wireless 802.11b/g and wired (Ethernet) network interfaces for connecting to your wired or wireless router. In addition, it includes 32MB of standard memory for faster processing, and PCL6 emulation for greater compatibility. 32MB of memory enables the HL-2170W to quickly process your print jobs and handle more complex documents.
Use Proxy objects implement message interfaces from the Integration Repository. That is, you use proxies to implement the actual message exchange that is described in the Integration Builder. Integration You create proxy object in the development system by using proxy generation. Features You can use message interfaces to create the following proxy objects: · ABAP proxy objects or · Java proxy objectsABAP Proxy GenerationProxy Generation Developing Message InterfacesExporting XSD and WSDL Documents Developing Messag...Java Proxy Objects Enumerations Developing Message...Java Proxy Objects Tables Developing Message Inter...Java Proxy Objects Developing Message InterfacesABAP Proxy Objects Developing Message InterfacesProxy Objects Developing Message InterfacesData Typ
Definition All ABAP objects that are created when you generate an interface object from the Integration Repository in an SAP system are called ABAP Proxy Objects. Structure You can divide the different interface objects (the objects from the Integration Repository from which you generate proxies) into two classes: The message interface itself and the corresponding parameters and data types (also see: Converting WSDL to the Target Language). Each generated proxy object can be assigned to its corresponding interface object in the Integration Repository even after generation. The ABAP proxy generation function notes this assignment using metadata, which is transported with the proxy object. Interfaces Message interfaces can have the mode synchronous or asynchronous (see: Communication Pa
Definition All Java objects that are created from a message interface from the Integration Repository in an SAP system, are called Java Proxy Objects. Multiple proxy objects are created in the system for each message interface (Java classes or Java interfaces). Message interfaces contain message types, and these in turn contain data types.All objects referenced to message interfaces (including fault message types), are also called Interface Objects. They are the counterparts of the generated proxy objects. Structure You can divide the different interface objects into two classes: The message interface itself and the corresponding parameters and data types (also see: Converting WSDL to the Target Language). Each generated proxy object can be assigned to its corresponding interfa
Unbounded Occurring Elements in XSD Neither XSD nor Java has an explicit table type. However, in XSD you can define elements so that there is no limit to how often they may occur (also see: Elements and Attributes). For example, assume you require a data type staff, which you can use to select a group of colleagues as members of staff and assign them a manager. The following table reflects the definition of this data type in the XSD editor: Definition of an Unbounded XSD Element Within a Structure Structure Category Type Occurrence Description staff Complex Type [-] manager Element 1 staff manager name Element xsd:string 1 birthday Element xsd:date 1 [-] employee Element 1..unbounded staff members name Element xsd:string 1 birthday Element
An enumeration is a facet that you can use to restrict the value range of a simple data type, attribute, or element. Java proxy generation generates a Java class for accessing the values. This class provides a type and value secure mapping of the enumeration by generating constants for each value and only enabling access using methods: There are two constants for each value that, where possible, have the same name as the value itself (for example, in the case of string values). Otherwise, the constants have the names value1, value2,...., valueN (with or without an underscore): A value constant of the type of the simple data type, attribute, or element. The constant therefore has the value of a possible value in the enumeration. In addition, the constant name has an underscore as a pre
Use The Integration Builder editors access repository objects directly. For example, you can load message types in the mapping editor to define a message mapping. You can also use tools from a third-party to design a mapping and then import the XSLT or Java mapping into the repository. The Integration Builder supports the export of interface objects for such scenarios. Interface Object Export Format Message Interface WSDL (Web Service Description Language) Data type, (fault) message type XSD (XML Schema Definition) Note the following here: · When exporting WSDL, the XSD of the referenced message type is contained in the exported file. · When exporting (fault) message types or data types, the Integration Builder checks whether there are any references to
Purpose Proxy generation converts non-language-specific interface descriptions in WSDL into executable interfaces known as Proxies. Depending on the target programming language, you choose one of the following: · ABAP proxy generation is part of the SAP Web AS 6.40. ABAP proxy generation enables you to generate proxies to communicate by using the Web service infrastructure and by using SAP Exchange Infrastructure. ABAP proxies that were generated from message interfaces in the Integration Repository (IR) can be used in both infrastructures. This means that if none of the Integration Server services are required for a proxy-to-proxy communication scenario in ABAP, you can use a point-to-point connection using the Web service infrastructure instead. · Java proxy generation
Use If you have already defined a data type as an XML Schema Definition (XSD) outside the Integration Builder, you can import this definition for a data type in the XSD editor. You use this as a template and can change it as required using the XSD editor. If more than one data type is defined in an XSD definition, the XSD editor can only import one of the globally defined data types. If the XSD data type to be imported contains references to other data types, the XSD editor does not import these referenced data types. After import, the references no longer link to these data types. However, you can import data types that reference each other to the Integration Repository one after the other. The Integration Builder recognizes automatically if data types for previously invalid references
Procedure ... 1. Create a data type in your namespace on the design maintenance screen of the Integration Builder (see also: Creating a New Object). 2. Choose the Definition tab page. The XSD editor automatically selects the category Simple Type when you create a data type. 3. To insert a subnode, call the context menu for the root element and choose either Insert Subelement or Insert Attribute. This is only possible if the root element has not yet been assigned a type. If a type has already been specified in the Type column, you can delete it again by selecting the type with the cursor, deleting the selected text by choosing the Del button, and then confirming the change by choosing Return. 4. The type then automatically changes to
Procedure ... 1. Create a data type in your namespace on the design maintenance screen of the Integration Builder (see also: Creating a New Object). 2. Choose the Definition tab page. The XSD editor automatically selects the category Simple Type when you create a data type. 3. In the Type column, define a built-in data type by clicking or double clicking the cell and selecting a value from the list box. You can also reference other simple data types by using the input help in the toolbar or in the list box. You cannot reference complex data types. You cannot make any entries for simple data types in the Occurrence column. 4. To define the facets of the simple data type in the Details column, call the input help by double clickin
Use Facets enable you to restrict the value range of a data type in XML schema to a particular subset. This enables you to determine exactly which value is expected in a special case for a simple data type, an element, or an attribute. For example: · A telephone number (using a pattern on a string) · A selection of permitted values, for example to classify the different classes for a flight (using an enumeration) Prerequisites Before you can use a facet, you must have selected a built-in data type in the Type column for your simple data type, element, or attribute. Otherwise the input field in the Details column remains locked. Features Using the XSD editor, you can further restrict the value range of a built-in data type for simple data types, elements or attributes
You create complex data types using elements and attributes in the XSD editor: Node Type Use Example Instance Element Create structured data types. Elements that have a type cannot contain subelements.
Value of f1
Value of f2
Attribute Add attributes to elements. Attributes cannot usually have subnodes. myAttr="AttributeValue">
Element Value
You can flag an attribute as optional or required in the Occurrence column. These values mean the same for elements with an occurrence of 0..1 or 1. The only difference between elements and attributes is that attributes cannot have subnodes and that the same attribute cannot be used more than once in an element. Frequently Occurring Elements XML schema does not recognize tables but permits instead th
Use The XSD editor enables you to define data types and data type enhancements without needing extensive knowledge of XML schema. You construct a data type in the XSD editor by using a table that returns the structure of the data type. As in XML schema, you can define both simple and complex data types that are automatically converted to XML Schema Definition (XSD) by the editor. The XML Schema Definition determines which tags can be transferred with which values in the payload. When defining a data type, the selection of values that you can enter in the table is context-dependent. Therefore, you cannot enter invalid entries. Prerequisites You have already created a data type. To access the XSD editor, select the Definition tab page (see: Data Types). Features The XSD editor compr
Use A data type is a basic unit for defining the structure of the data for a message type and, as a result, for the message to be exchanged. Integration A data type is an XML Schema Definition (XSD). This definition determines how the valid payload of a message will look. Data types in XML schema are only an abstract description of a structure that you can assign to elements in an XML schema definition. A message type or a fault message type that references a data type determines the name of the root element of a message. Alternatively, you can use external definitions, which already contain data types, or import an XSD definition as a template. Customers and partners can use data type enhancements to add their own fields to SAP data types in the Integration Repository. Prerequisi
Use Fault message types are designed for application-specific errors that occur on the inbound side and that are reported back to the sender or persisted in monitoring. · In the synchronous case, when an application-specific error occurs on the inbound side, instead of sending a response message back to the sender, the application can send a fault message to handle the error. · The fault message of the application for an asynchronous ABAP server proxy is persisted for monitoring. In the case asynchronous of Java server proxies, the fault message is part of a negative application acknowledgement (see Acknowledgments). Application-specific means that the application on the inbound side triggers the error itself because, for example, the request message did not contain su
Use A message type comprises a data type that describes the structure of a message. At the following points in SAP Exchange Infrastructure you can refer to the message to be exchanged at runtime by using the message type: · More than one message interface can use the same message type. For example, an asynchronous outbound message interface and an asynchronous inbound message interface can reference the same message type because the request message does not need to be mapped. · When defining a message mapping you can directly reference message types to map messages from an outbound interface to messages from a receiver interface. For technical reasons, a data type is not sufficient to describe the instance of a message. In XML schema, data types are defined as abstra
Purpose Generally speaking, interfaces are where functions in a system can be executed. In the context of SAP Exchange Infrastructure, only the following interfaces are relevant: · Interfaces designed for message exchange between application systems · Interfaces used by a cross-component integration process to receive or send messages, or both Starting with a cross-system integration process, you can then derive the corresponding interfaces required. SAP Exchange Infrastructure supports this process by using an integration scenario to describe the collaborative process. The integration scenario summarizes the interfaces required for this collaborative process. You can use SAP interfaces that already exist in systems, non-SAP interfaces that are connected to SAP Excha
abstract An formally unfinished class or method, marked with the keyword abstract. It is a way of preventing someone from instantiating a class that is supposed to be extended first. An abstract class is deliberately missing some or all of the method bodies. An abstract method is deliberately missing its method body. An abstract class is similar to an interface which is missing all the method bodies. An abstract class provides a base for someone to extend an actual class. You can't use new on abstract classes, but you can use abstract references, which always point to objects of a class that extends the abstract class. Interfaces are implicitly abstract as are all their methods.To use make practical use of an abstract class, you must define a non-abstract class that extends the abstract on
By: Chris Bryant
As a CCNA candidate, you most likely have some background in PC hardware and workstation support. If so, you're already familiar with loopback interfaces, particularly 127.0.0.1, the loopback address assigned to a PC.
When you're learning all about the different physical interfaces for your CCNA exam - serial, ethernet, and BRI, among others - there's one logical interface you
By: Chris Bryant
As a CCNA candidate, you most likely have some background in PC hardware and workstation support. If so, you're already familiar with loopback interfaces, particularly 127.0.0.1, the loopback address assigned to a PC.
When you're learning all about the different physical interfaces for your CCNA exam - serial, ethernet, and BRI, among others - there's one logical interface you
Another Sony Ericsson patent has surfaced and this one has multiple input interfaces.
Abstract of the Patent: An electronic device has a main body, a flip attached to the main body and multiple...
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Modifying the human body or enhancing our cognitive abilities using technology has been a long-time dream for many people. Nano-bio-info-cogno-synbio (NBICS) is now reaching a critical stage where it could lead to the fulfillment of that dream. An increasing amount of research tries to link the human brain with machines allowing humans to control their environment through their thoughts. It is
Company Apple will learn BMW to do friendly interfacesIt is remembered, in 1999 on a motor show in Frankfurt stood shaking concept BMW Z9 gran tourism. Besides the unearthly beauty, that car was remarkable also small kruglyashom on the central tunnel which operated all possible functions of the car. In 2002 system has received the name iDrive and "has registered" in bowels of the seventh series. Buyers, and all automobile public, were delighted.But gradually triumph has ceased and was replaced by bewilderment, and then and at all anger. The overwhelming majority of buyers BMW with system iDrive and could not cope with it and damned founders for the unfriendly interface. Now the situation has improved, but all the same is far not each owner BMW in perfection has seized sophisticated technol
AJAX helps in refreshing / requerying parts of web page without reloading the entrie webpage there by increasing performance and ultimately user interface
UI-Patterns es un excelente sitio que nos puede ayudar mucho a la hora de diseñar algún panel de administración o interfase que el usuario utilice mucho, ya sean filtros de búsqueda, catálogos, etc…
En si el sitio nos muestra una serie de Patrónes de Diseño para interfaces de usuarios en el cual según el caso nos muestra ejemplos que tengan un problema o no sean usables y después ejemplos, especificaciones, descripción y consejos de como mejorar esas mismas interfaces después de todo los diseñadores también deben tomar en cuenta la comodidad del usuario.
Enlace: UI Patterns
Via WebAppers
Compártelo
This error kept me busy all morning and part of the afternoon:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
This error seems to be affecting more developers - according to some forums and blogs - but none of them had a solution.
After trying some workarounds I finally found one that worked: The SQL port - 1433 - needs to be included as part of Data Source on the connection string:...Data Source=mysqlserverinstance1,1433;...
That did it for me.
Note that the error was happening when connecting to a SQL Server 2000 from a .NET 2.0 web application.
I'm not sure the real cause of this problem or why it was happening in the first place.
I also posted my workaround on the following forums:http://blogs.msdn.com/sql_protoc
1. Make a new document 640w 480h
2. Fill the background with #1B1B1B
3. Set your foreground color at #333333
4.Make a new layer and then Make 3 circles and fill them in. They must be touching eachother (below)
5. Right click the new layer and goto blending options and goto inner glow and put in the options below.
You should have this
6. Get your Burn tool out and put in some shading
This is an update to a previous post regarding the change of mac address in Debian. In the previous tutorial I told you can change it by ifconfig from a root account. Now I’m going to teach you how to set an interface mac address using /etc/network/interfaces . This is a better way to set your mac address because the mac you set in /etc/network/interfaces will always load when the interfaces are loaded so you don’t have to worry about the mac after reboot for example. Let’s start by looking at my /etc/network/interfaces it looks like this:
#This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 1.1.1.2
netmask 255.255.255.0
network 1.1.1.255
broadcast 1.1.1.255
gateway 1.1.1.1
dns-nameservers 1.1.1.1
dns-search .com
hwaddress ether 00:01:04:1
Postdoctoral Position
Novel Supramolecular Materials based on Molecular Self-Assemblies
A postdoctoral position is available at Max Planck Institute Colloids and Interfaces (Potsdam, Germany) (Prof. Helmuth Mohwald (Department of Interfaces), Dr. Takashi Nakanishi) in the MPI-NIMS International Joint Laboratory, (started since April, 2007), concerning the development and fabrication of novel supramolecular materials based on molecular self-assemblies. The candidate is expected to work independently and to conduct research in a highly interdisciplinary environment. Experience in organic-chemical syntheses, fullerene chemistry, molecular self-assembled soft materials (liquid crystals, ultra thin films), colloidal and interfacial sciences, nanoscience or polymer physics are welcome. The successful candidate should have a PhD degree in chemistry, materials science or a related field. Research experience in supramolecular assembly, organic ultra thin layers and self-organized materials ar
Hier kommt mal wieder etwas für die Web Designer unter Euch. Auf der Webseite TopTut.com - Top Tutorials gibt es eine schöne Sammlung von insgesamt 20 Tutorials, die das erstellen von Web Interfaces in Photoshop zeigen/erklären. Zwar sind die Tutorials allesamt recht futuristisch angehaucht, um sich aber mal einen kleinen Einblick in die Gestaltungsweise von Web Design Elementen zu verschaffen, dürften diese Tutorials doch recht interessant sein. Viel Spaß beim Ausprobieren! Lasst Euch inspirieren!
Mientras que digg ya ha renovado su interfaz y ahora ofrece nuevos opciones relacionadas con vídeos, Del.icio.us, prueba una nueva interfaz (mediante invitación).También Bloglines renueva su interfaz, para competir con la mejorada (pero hace un año) interfaz de Google Reader, que le ha quitado gran parte de los usuarios.Y todo eso, para que en cuestión de días, salga un script para Greasemonkey, Stylish, o similar que mejore su aspecto y usabilidad instantáneamente.Quizás estemos ante un nuevo sistema de usar la web, donde el usuario, además de aportar el contenido, elige como visualizarlo.
Author: Luigi Ambrosio, Klaus Deckelnick Paperback: 245 pagesPublisher: Springer; 1 edition (August 2003)Language: EnglishISBN: 3540140336(R)Interfaces are geometrical objects modelling free or moving boundaries and arise in a wide range of phase change problems in physical and biological sciences, particularly in material technology and in dynamics of patterns. Especially in the end of last century, the study of evolving interfaces in a number of applied fields becomes increasingly important, so that the possibility of describing their dynamics through suitable mathematical models became one of the most challenging and interdisciplinary problems in applied mathematics. The 2000 Madeira school reported on mathematical advances in some theoretical, modelling and numerical issues concerned with dynamics of interfaces and free boundaries. Specifically, the five courses dealt with an assessment of recent results on the optimal transportation problem, the numerical ap
The .NET Framework contains both classes and interfaces. When you write routines, you will find that you probably know which .NET class you’re using. However, your code will be more robust and more reusable if you program using any supported interfaces instead of the class you happen to be working with at the time. Consider this code:
private void LoadList (object [] items, ListBox l) {for (int i = 0; i l.Items.Add (items[i].ToString ());}
This function loads a ListBox from an array of any kind of objects. The code is limited to an array only. Suppose that later you find that objects are stored in a database, or in some other collection. You need to modify the routine to use the different collection type. However, had you written the routine using the ICollection interface, it would work on any type that implements the ICollection interface:
private void LoadList (ICollection items, ListBox l) {foreach (object o in items)l.Items.Add (o.ToString ());}
The ICollection interface is
The .NET Framework contains both classes and interfaces. When you write routines, you will find that you probably know which .NET class you’re using. However, your code will be more robust and more reusable if you program using any supported interfaces instead of the class you happen to be working with at the time. Consider this code:
private void LoadList (object [] items, ListBox l) {for (int i = 0; i l.Items.Add (items[i].ToString ());}
This function loads a ListBox from an array of any kind of objects. The code is limited to an array only. Suppose that later you find that objects are stored in a database, or in some other collection. You need to modify the routine to use the different collection type. However, had you written the routine using the ICollection interface, it would work on any type that implements the ICollection interface:
private void LoadList (ICollection items, ListBox l) {foreach (object o in items)l.Items.Add (o.ToString ());}
The ICollection interface is
Nokia's upper management quickly reverses its thoughts on optical and touch sensitive interfaces for mobile devices Last week Nokia gave a vote of no confidence to the use of touchscreen technology in mobile phones. In an interview with Swedish newspaper, E24.SE, Nokia's General Manager of Mobile Devices, Antti Vasara, simply said that users prefer keyboards and joysticks over touchscreen displays and that Nokia is not enthusiastic about touch screens. Despite this, he did say that if Nokia sees the demand for touch screens, the company would use them in mobile devices.A week later it seems that Nokia has seen the demand for touchscreen technology in mobile phones. Tero Ojanpera, Chief Technology Officer of Nokia, yesterday said, "Optical sensors and touch will be the next big things." His statement is a 180 degree turn from what Vasara said last week.Ojanpera lauded touch screens, claiming the technology would allow cell phone makers to hide keypads. In addition, he said tha
Common interfaces in the .NET Framework Class Library (FCL). These interfaces are implemented and used in the same manner as those you created earlier.Common interfaces of the .NET Framework Class Library. InterfaceDescriptionIComparableInterface IComparable can also be used to allow objects of a class that implements the interface to be compared to one another. The interface contains one method, CompareTo, that compares the object that calls the method to the object passed as an argument to the method. Classes must implement CompareTo to return a value indicating whether the object on which it is invoked is less than (negative integer return value), equal to (0 return value) or greater than (positive integer return value) the object passed as an argument, using any criteria specified by the programmer. IComponentImplemented by any class that represents a component, including Graphical User Interface (GUI) controls (such as buttons or labels). Interface IComponent defines the
Most Hibernate-related application code primarily interacts with four interfaces provided by Hibernate Core:org.hibernate.Sessionorg.hibernate.SessionFactoryorg.hibernate.Criteriaorg.hibernate.QueryThe Session is a persistence manager that manages operation like storing and retrieving objects. Instances of Session are inexpensive to create and destroy. They are not thread safe.The application obtains Session instances from a SessionFactory. SessionFactory instances are not lightweight and typically one instance is created for the whole application. If the application accesses multiple databases, it needs one per database.The Criteria provides a provision for conditional search over the resultset.One can retrieve entities by composing Criterion objects. The Session is a factory for Criteria.Criterion instances are usually obtained via the factory methods on Restrictions.Query represents object oriented representation of a Hibernate query. A Query instance is
Things to remember:The method names and return types should exactly match.Any parameters (including ref and out keyword modifiers) should match exactly.The method name is prefaced by the name of the interface.Implementing More Than One Interface:Classes can implement more than one interface.class Program { static void Main(string[] args) { person p1 = new person(); p1.display(); //uses its own implementation for the display method p1.read(); p1.display(); Console.Read(); } interface IDispay //Declasre IDisplay as an interface { // no access modifiers, methods are public // no implementation void display(); //Method signature only, no implementation. } interface IRead //Declare IRead as an an
What is an interface?From my previous posts you must already know how to derive a class from another class, but the real power of inheritance lies in inheriting from an interface. An interface allows you to completely separate the name of a method from its implementation. In an interface, no method can include a body, i.e. an interface provides no implementation whatsoever. It stresses more on what is to be done than how it is to be done. An interface can be implemented by any number of classes. One class can implement any number of interfaces. Interfaces only include method signatures; their implementations are determined by their derived classes. Thus, two classes can implement the same interface in different ways. C# supports "one interface and multiple methods".An example, how to declare an interface:interface IDispay //Declasre IDisplay as an interface { // no access modifiers, methods are public // no implementation void
Auf Smashing Magazine hab ich einen tollen Artikel über Tab Interface Techniken gefunden. Wer mal schnell eine Tab Navi braucht und nicht selber schreiben will, der ist hier bestens bedient.
Book Description
This book in the tradition of IT-cookbooks, where the reader will find quick recipes and reliable information to cover all aspects of SAP Interfacing and quickly became a standard work for the R/3 world.
Book Info
Contents include Interface Technologies in R/3, concepts of IDocs, predefined IDocs, developing IDocs solutions, timing and triggering interface processing,
We’ve seen quite a few videos showing what appears to be where the future of computer user interfaces is rapidly headed but this is certainly the best, and most well produced we’ve seen to date, so...
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