但是繼續看下去後,才發覺它的好玩之處...
在匿名型別上,可以透過巢狀的方式設計,或是透過一些基本型別或是強型別的物件來作為屬性(property)。
DataSet1TableAdapters.EmployeeTableAdapter em = new DataSet1TableAdapters.EmployeeTableAdapter();
DataTable dt = new DataTable();
dt = em.GetData();
var mytest = new { Test1 = "123", Test2 = 456, Test3 = 12.34 };
var person = new { Name = "Lolota ", Sex = "Male", Age = 99, MyProfile=dt, my=mytest};
label1.Text = person.MyProfile.Rows[0].ItemArray[1].ToString();
還有可以拿來處理查詢(LINQ):
private static void QueryNames(char firstLetter)
{
// Create the query. var is required because
// the query produces a sequence of anonymous types.
var studentQuery =
from student in students
where student.FirstName[0] == firstLetter
select new { student.FirstName, student.LastName };
// Execute the query.
foreach (var student in studentQuery)
{
Console.WriteLine("First = {0}, Last = {1}", student.FirstName, student.LastName);
}
}
參考:
1. Implicitly Typed Local Variables
2. How to: Use Implicitly Typed Local Variables and Arrays in a Query Expression
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