Tuesday, 15 September 2015

Latest Top ASP.Net Interview Questions and Answers

51. Can you explain the difference between an ADO.NET Dataset and an ADO Recordset?
Valid answers are:
•  A DataSet can represent an entire relational database in memory, complete with tables, relations, and views.
•  A DataSet is designed to work without any continuing connection to the original data source.
•  Data in a DataSet is bulk-loaded, rather than being loaded on demand.
•  There's no concept of cursor types in a DataSet.
•  DataSets have no current record pointer You can use For Each loops to move through the data.
•  You can store many edits in a DataSet, and write them to the original data source in a single operation.
•  Though the DataSet is universal, other objects in ADO.NET come in different versions for different data sources.

52. What are the Application_Start and Session_Start subroutines used for?
This is where you can set the specific variables for the Application and Session objects.

53. Can you explain what inheritance is and an example of when you might use it?
When you want to inherit (use the functionality of) another class. Example: With a base class named Employee, a Manager class could be derived from the Employee base class.

54. Whats MSIL, and why should developers need an appreciation of it if at all?
MSIL is the Microsoft Intermediate Language. All .NET compatible languages will get converted to MSIL.  MSIL also allows the .NET Framework to JIT compile the assembly on the installed computer.

55. Which method do you invoke on the DataAdapter control to load your generated dataset with data?
The Fill() method.

56. Can you edit data in the Repeater control?
No, it just reads the information from its data source.

57. Which template must you provide, in order to display data in a Repeater control?

58. How can you provide an alternating color scheme in a Repeater control?
Use the AlternatingItemTemplate.

59. What property must you set, and what method must you call in your code, in order to bind the data from a data source to the Repeater control?
You must set the DataSource property and call the DataBind method.

60. Name two properties common in every validation control?
ControlToValidate property and Text property.

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