Answer / Seema Rani

"first()" returns an exception if no elements are found, while "firstordefault()" returns a default value of the element type when no elements are found.

What is linq in xamarin?

1 Answers  

---

What do you understand by datacontext class?

1 Answers  

---

What is difference between XElement.Load() and XDocument.Load()?

1 Answers  

---

In LINQ how will you find the index of the element using where () with Lambda Expressions?

1 Answers  

---

How you can assign a lambda expression to a delegate?

1 Answers  

---

What is first in linq?

1 Answers  

---

How can you find average of student marks from student tables (columns are studentid, marks)?

1 Answers  

---

What is deferred execution in linq?

1 Answers  

---

What is the difference between first () and firstordefault () select methods in linq?

1 Answers  

---

Why is linq used?

1 Answers  

---

How linq is useful than stored procedures?

1 Answers  

---

What is the difference between linq to sql and entity framework?

1 Answers  

---