Web config file is specific to a web application where as machine config is specific to a machine or server. There can be multiple web config files into an application where as we can have only one machine config file on a server.
Role Based Security used to implement security based on roles assigned to user groups in the organization.
Then we can allow or deny users based on their role in the organization. Windows defines several built-in groups, including Administrators, Users, and Guests.
< !-- Allow Administrators in domain. -- >
< deny users="*" / >
< !-- Deny anyone else. -- >
When we click submit button on a web page, the page post the data to the same page. The technique in which we post the data to different pages is called Cross Page posting. This can be achieved by setting POSTBACKURL property of the button that causes the postback. Findcontrol method of PreviousPage can be used to get the posted values on the page to which the page has been posted.
We can specify the theme in web.config file. Below is the code example to apply theme:
<pages theme="Windows7" />
RedirectPermanent Performs a permanent redirection from the requested URL to the specified URL. Once the redirection is done, it also returns 301 Moved Permanently responses.
MVC is a framework used to create web applications. The web application base builds on Model-View-Controller pattern which separates the application logic from UI, and the input and events from the user will be controlled by the Controller.
First of all it checks passport authentication cookie. If the cookie is not available then the application redirects the user to Passport Sign on page. Passport service authenticates the user details on sign on page and if valid then stores the authenticated cookie on client machine and then redirect the user to requested page
All the websites can be accessed using single login credentials. So no need to remember login credentials for each web site.
Users can maintain his/ her information in a single location.
Provides a standard login capability that allows the users to enter their
Allows you to display the name of the logged-in user
Displays whether the user is authenticated or not
Provides various login views depending on the selected template
email the users their lost password
Page load event.
Boxing is assigning a value type to reference type variable.
Unboxing is reverse of boxing ie. Assigning reference type variable to value type variable.
In strong typing, the data types of variable are checked at compile time. On the other hand, in case of weak typing the variable data types are checked at runtime. In case of strong typing, there is no chance of compilation error. Scripts use weak typing and hence issues arises at runtime.
The Page.Validate() method is used to force all the validation controls to run and to perform validation.
The appSettings block in web config file sets the user-defined values for the whole application.
For example, in the following code snippet, the specified ConnectionString section is used throughout the project for database connection:
The data types supported by the RangeValidator control are Integer, Double, String, Currency, and Date.
In HtmlInputCheckBoxcontrol, multiple item selection is possible whereas in HtmlInputRadioButton controls, we can select only single item from the group of items.
– Resides on the client machine for a single session until the user does not log out.
– Resides on a user’s machine for a period specified for its expiry, such as 10 days, one month, and never.
Web services have file extension .asmx.
The components of ADO.Net are Dataset, Data Reader, Data Adaptor, Command, connection.
ExecuteScalar returns output value where as ExecuteNonQuery does not return any value. ExecuteScalar used for fetching a single value and ExecuteNonQuery used to execute Insert and Update statements.
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