What are the different types of workflow in WF?

Correct Answer: Windows Workflow Foundation (WF) is a technology that was first introduced in NET Framework 30 WF consists of a programming model, a workflow runtime engine, workflow designer, a rules engine, and tools to quickly build workflow-based applications on Windows WF facilitates the separation between the business process code and the actual implementation code

Correct Answer: State is quite an innovative concept in Web development because it eliminates the drawback of losing state data due to reloading of a Web page By using states in a Web application, you can preserve the state of the application either at the server or client end The state of a Web application helps you to store the runtime changes that have been made to the Web application For example, as already described earlier, a change in the data source of the Web application might be initiated by a user when he/she selects and saves some products in the shopping cart If you are not using states, these changes are discarded and are not saved You may think that the whole concept of storing states is optional However, under certain circumstances, using states with applications is imperative For example, it is necessary to store states for Web applications, such as an e-commerce shopping site or an Intranet site of a company, to keep track of the requests of the users for the items they have selected on the shopping site or the days requested for vacation on the Intranet site

Correct Answer: Validation controls are responsible to validate the data of an input control Whenever you provide any input to an application, it performs the validation and displays an error message to user, in case the validation fails ASPNET 40 contains the following six types of validation controls: => CompareValidator - Performs a comparison between the values contained in two controls => CustomValidator - Writes your own method to perform extra validation => RangeValidator- Checks value according to the range of value => RegularExpressionValidator - Ensures that input is according to the specified pattern or not => RequiredFieldValidator - Checks either a control is empty or not => ValidationSummary - Displays a summary of all validation error in a central location

Correct Answer: The code-behind feature of ASPNET enables you to divide an ASPNET page into two files - one consisting of the presentation data, and the second, which is also called the code-behind file, consisting of all the business logic The presentation data contains the interface elements, such as HTML controls and Web server controls, and the code-behind contains the event-handling process to handle the events that are fired by these controls The file that contains the presentation data has the aspx extension The code behind file has either the cs extension (if you are using the programming language C#) or the vb (if you are using the programming language Visual Basic NET) extension

Correct Answer: You can use the SystemNetMailMailMessage and the SystemNetMailSmtpMail classes to send an email in your Web pages In order to send an email through your mail server, you need to create an object of the SmtpClient class and set the server name, port, and credentials

Correct Answer: Workflows serve the purpose of automating business processes Now, since each type of business has a wide range of problems; therefore, a workflow platform needs to be extensible WF provides you with a set of base activities, such as IfElse, Code, and Delay, to build a workflow You can extend these activities or build new activities to meet your requirements Besides activities, you can also extend services, such as tracking, management, and persistence, provided by the runtime engine

Correct Answer: => Windows Installer => ClickOnce => XCOPY => Copy Web Site => Publish Web Site tool

Correct Answer: You can deploy an ASPNET Web application using either the Windows Installer deployment or ClickOnce deployment technique

Correct Answer: Variables that are defined in a C# program belong to two major categories: value type and reference type The variables that are based on value type contain a value that is either allocated on a stack or allocated in-line in a structure The variables that are based on reference types store the memory address of a variable, which in turn stores the value and are allocated on the heap The variables that are based on value types have their own copy of data and therefore operations done on one variable do not affect other variables The reference-type variables reflect the changes made in the referring variables

Correct Answer: LINQ is a programming model that is the composition of general-purpose standard query operators that allow you to work with data, regardless of the data source in any NET based programming language It is the name given to a set of technologies based on the integration of query capabilities into any NET language