Wednesday, January 11, 2017


1. Can abstract class have constructor?
Ans Yes

2. What is the difference between Static class and Singleton object class?
Ans Click Here

3. What is trigger in WPF?
Ans Click Here

4. What property trigger in WPF?
Ans Click Here

5  What is event routing?
Ans Click Here

6. How do you stop event routing at particular control?
Ans Click Here

7. Write a program to counts the occurrence of a particular number in an array.
8. How do you decide interface should be use of abstract class?
9. How do you ensure before write a function that it should be unit testable?
10. How many clustered index can be created in a table?
11. How many non clustered index can be created in a table.
12. How do you decide on which column index should be created?
13. Give me a real scenario where you have used dependency property.
Ans Click Here

14. Have you used TDD (Test Driven Development) approach?
15. What will be the output of following query

Select * from Emp where 1=0

And what will be the output of

Select * from Emp Null=Null

16. Write a query to give maximum salary of every department from Emp table.
17 Difference between Factory Pattern an abstract Factory pattern.

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