static void Main()
{
QueryableTerraServerData<Place> terraPlaces = new QueryableTerraServerData<Place>();
// 第一个查询。
var query1 = from place in terraPlaces
where place.Name== "Redmond"
select place.State;
Console.WriteLine("States that have a place named \"Redmond\":");
foreach (string name in query1)
Console.WriteLine(name);
// 第二个查询。
var count = (from place in terraPlaces
where place.Name.StartsWith("Lond")
select place).Count();
Console.WriteLine("\nNumber of places whose names start with \"Lond\": " + count + "\n");
// 第三个查询。
string[] places = { "Johannesburg", "Yachats", "Seattle" };
var query3 = from place in terraPlaces
where places.Contains(place.Name)
orderby place.State
select new { place.Name, place.State };
Console.WriteLine("Places, ordered by state, whose name is either \"Johannesburg\", \"Yachats\", or \"Seattle\":");
foreach (var obj in query3)
Console.WriteLine(obj);
Console.ReadLine();
}
static void Main()
{
QueryableTerraServerData <Place> terraPlaces = new QueryableTerraServerData <Place>();
//QUERY 1
//var query = from place in terraPlaces
// where place.Name == "London"
// select place.PlaceType;
//QUERY 2
//var query = from place in terraPlaces
// where place.Name.StartsWith("Lond")
// select new { place.Name, place.State };
//QUERY 3
string[] places = { "Johannesburg", "Yachats", "Seattle" };
var query = from place in terraPlaces
where places.Contains(place.Name)
orderby place.State
select new { place.Name, place.State };
foreach (var obj in query)
{
Console.WriteLine(obj);
}
}
static void Main(string[] args)
{
var query = new QueryableTerraServerData <Place>();
foreach (var place in query.Where(p => p.State == "NY"))
{
WriteLine($"- {place.Name} - {place.PlaceType}");
}
WriteLine("Done!");
ReadLine();
}
public void LinqTest()
{
QueryableTerraServerData<Place> terraPlaces = new QueryableTerraServerData<Place>();
var query = from place in terraPlaces
where place.Name.StartsWith("Lond")
select new { place.Name, place.State };
foreach (var obj in query)
Console.WriteLine(obj);
}
static void Main(string[] args)
{
var terraPlaces = new QueryableTerraServerData<Place>();
var query = from place in terraPlaces
where place.Name == "place1"
select place.PlaceType;
foreach (PlaceType placeType in query)
Console.WriteLine(placeType);
}
public void LinqTest()
{
QueryableTerraServerData <Place> terraPlaces = new QueryableTerraServerData <Place>();
var query = from place in terraPlaces
where place.Name.StartsWith("Lond")
select new { place.Name, place.State };
foreach (var obj in query)
{
Console.WriteLine(obj);
}
}
static void Main(string[] args)
{
QueryableTerraServerData <Place> terraPlaces = new QueryableTerraServerData <Place>();
string s = "Johannesburg";
var query = from place in terraPlaces
where place.Name == s && place.PlaceType == PlaceType.Island
select place.PlaceType;
foreach (PlaceType placeType in query)
{
Console.WriteLine("Place: " + placeType);
}
}
static void Main()
{
QueryableTerraServerData <Place> terraPlaces = new QueryableTerraServerData <Place>();
// First query.
var query1 = from place in terraPlaces
where place.Name == "Redmond"
select place.State;
Console.WriteLine("States that have a place named \"Redmond\":");
foreach (string name in query1)
{
Console.WriteLine(name);
}
// Second query.
var count = (from place in terraPlaces
where place.Name.StartsWith("Lond")
select place).Count();
Console.WriteLine("\nNumber of places whose names start with \"Lond\": " + count + "\n");
// Third query.
string[] places = { "Johannesburg", "Yachats", "Seattle" };
var query3 = from place in terraPlaces
where places.Contains(place.Name)
orderby place.State
select new { place.Name, place.State };
Console.WriteLine("Places, ordered by state, whose name is either \"Johannesburg\", \"Yachats\", or \"Seattle\":");
foreach (var obj in query3)
{
Console.WriteLine(obj);
}
Console.ReadLine();
}
