September 2015

19. What are lambda expressions in LINQ? A lambda expression is a function without a name that calculates and returns a single value. All lambda expressions use the lambda operator […]

7. What is PLINQ? PLINQ stands for Parallel Language Integrated Query. It is the parallel implementation of LINQ, in which a query can be executed by using multiple processors. PLINQ

7. What is PLINQ? PLINQ stands for Parallel Language Integrated Query. It is the parallel implementation of LINQ, in which a query can be executed by using multiple processors. PLINQ

1. What is Language Integrated Query (LINQ)? LINQ is a programming model that is the composition of general-purpose standard query operators that allow you to work with data, regardless of

1. What is Language Integrated Query (LINQ)? LINQ is a programming model that is the composition of general-purpose standard query operators that allow you to work with data, regardless of

37. What are the parameters that control most of connection pooling behaviors? The parameters that control most of connection pooling behaviors are as follows: Connect Timeout Max Pool Size Min

31. Which adapter should you use, if you want to get the data from an Access database? OleDbDataAdapter is used to get the data from an Access database. 32. Which

25. What are the usages of the Command object in ADO.NET? The following are the usages of the Command object in AD0.NET: The Command object in AD0.NET executes a command

19. Which property is used to check whether a DataReader is closed or opened? The IsClosed property is used to check whether a DataReader is closed or opened. This property

13. Name the two properties of the GridView control that have to be specified to turn on sorting and paging. The properties of the GridView control that need to be

7. Explain the DataAdapter.Update() and DataSet.AcceptChanges() methods. The DataAdapter.Update() method calls any of the DML statements, such as the UPDATE, INSERT, or DELETE statements, as the case may be to

1. What is the full form of ADO? The full form of ADO is ActiveX Data Object. 2. Explain ADO.NET in brief. ADO.NET is a very important feature of .NET

67. Is it possible to associate a control with more than one ContextMenu? No, we cannot associate a control with more than one ContextMenu. 68. How can you check/uncheck all

61. What is the difference between a ListBox control and a ComboBox control? With a ListBox control, the user can only make a selection from a list of items; whereas,

55. Is it possible to enter more than one line in a TextBox control? Yes, it is possible to enter more than one line in a TextBox control. To do

49. What are the three states set in the CheckState property of CheckBox? Checked Unchecked Indeterminate 50. How can you display an icon at runtime on the StatusStrip control? The

43. What is the importance of a Button control? A Button control is an important Windows control, which provides the most common way of creating and handling an event in

37. How can you place a border around a picture box? The PictureBox control offers the BorderStyle property, which can be set to define the style of its border. This

31. How can you attach a horizontal scroll bar with the ListBox control? You need to set the the MultiColumn property of the ListBox control to True to attach a

25. How do you retrieve the customized properties of a .NET application from the XML .config file? Initialize an instance of the AppSettingsReader class. Call the GetValue() method of the

19. Define the TrackBar control. The TrackBar control, also known as the slider control, works as a navigator to display a large amount of information or for visual adjustment of

13. What is the function of the CheckState property of the CheckBox control? The CheckState property gets or sets the state of CheckBox. If the ThreeState property is set to

7. How will you pick a color from the ColorDialog box? To pick a color from the color dialog box, you need to create an instance of the ColorDialog box

1. How can we auto size a button to fit its text? The Button control has the AutoSize property, which can be set to true or false. If we set

49. What are the different ways a method can be overloaded? The different ways to overload a method are given as follows: By changing the number of parameters used By