An example of the function of writing data to objects

Querying matching data in two sets and outputting the data can be easily written, which is a little shocking. If you don't study it, it's really outdated!

 

Using system;
Using system. Collections. Generic;
Using system. LINQ;
Using system. text;

Namespace consoleapplication4
{
Class Program
{
Static void main (string [] ARGs)
{
List <product> List = new list <product> ();
List. Add (New Product ("HTC", 3000 ));
List. Add (New Product ("Nokia", 2000 ));
List. Add (New Product ("Moto", 1000 ));

List <company> company_list = new list <company> ();
Company_list.add (New Company ("HTC", "Taiwan "));
Company_list.add (New Company ("Nokia", "swiden "));
Company_list.add (New Company ("Moto", "America "));

 

var fliter = from product P in list
join company C1 in company_list on p. name equals c1.companyname
where p. pricing> 1000
select new {P. name, P. price, c1.companyaddress};

Foreach (var v in fliter)
{
Console. writeline (V. Name + v. companyaddress + v. Price );
}

Console. readkey ();
}
}

Public class product
{
Public string name {set; get ;}
Public decimal price {set; get ;}

Public Product (string name, decimal price)
{
This. Name = Name;
This. Price = price;
}
}

Public class company
{
Public String companyName {set; get ;}
Public String companyaddress {set; get ;}

Public Company (string _ name, string _ address)
{
This. companyName = _ name;
This. companyaddress = _ address;
}
}
}

 

**************************************** ********************

This collection Initialization is outdated.

List <product> List = new list <product> ();
List. Add (New Product ("HTC", 3000 ));
List. Add (New Product ("Nokia", 2000 ));
List. Add (New Product ("Moto", 1000 ));

List <company> company_list = new list <company> ();
Company_list.add (New Company ("HTC", "Taiwan "));
Company_list.add (New Company ("Nokia", "swiden "));
Company_list.add (New Company ("Moto", "America "));

 

It can be transformed as follows:

 

List <product> List = new list <product> (){
New product ("HTC", 3000 ),
New product ("Nokia", 2000 ),
New product ("motorcycle", 1000)
};

List company_list = new list ()
{< br> New Company ("HTC", "Taiwan "),
New Company ("Nokia", "swiden"),
New Company ("Moto", "America")
};