Then he asked about in which area i am comfortable sql or c#?

which are the Pillars of oops?

what 'function overloading and overriding' is called?

is function overriding is compile time?

Then he gave me this program Class A { Public void print(){ print("a");} } Class B : A { Public void print (){print("b");} } 1. He asked me wil this be compiled? 2. any how if i compiled this then what will be the output of A a = new A(): B b = new B();? 3. if I make print method of class A virtual and override in class B then wat will be the output of quest. 2? 4. if I have class C class C:A:B {} 5. suppose i hv 2 interfaces for cls A and B class C:IA : IB { public void print(){ print("c");} } will this be compiled?

Then he asked me about 'using' keyword.

using(A a = new A()) have you seen such a syntax anywhere?

Do you know what is dispose and IDisposable?

What is distructor?

Then he moved to wpf. 1. he drew one window with few buttons placed in rows and columns. and asked me want it to be resize with parent window when user resize its parent window. 2. how will u design this in xaml, write code

he drew a combobox wich has template name age photo and then 1. he asked me to design it in wpf. 2. He asked me to add binding 3. he said if I don't display photo i will show red colour if sal > 1000 & green colour if sal < 1000 4. write code of coverter

then he moved to threading i have a text box and 2 threads are running paralelly 1 is writing something in that textbox and one 1 is changing its colour. will this code work

have u used delegate and where