C # lambda-expression Learning

1. Normal binding:

void button1_click (object sender, EventArgs e)        {            MessageBox.Show ("OK");} This.button1.Click + = button1_click;      

2. Anonymous delegation:

Delegate (object sender, EventArgs e)            {                MessageBox.Show ("click");};    

3. LAMDA expression:

This.button1.Click + = (sender, e) + =            {                MessageBox.Show ("click");});  

The compiler automatically calculates the type in the expression.

4. Filter conditions:

New list<user>();            bool> predicate = (                user) = (                {)                    ;}); List<user> temps = users. Where (predicate). ToList ();     

Equivalent to:

100). ToList ();

List<user> temps = (select p). ToList ();

New list<user>();            bool> predicate = (+                 ); List<user> temps = users. Where (predicate). ToList ();    

You do not need to use {} When you take a heads-up statement, and you can return results without using return.

5. Sort:

New list<user>();            List<user> Temp1 = users. (p=>P.userid). ToList ();            by = (user = user. USERID); List<user> Temp2 = users. The (by). ToList ();    

C # lambda-expression Learning