Collection initializers C# with Example

Initialize a collection type with values: 
var stringList = new List 
{ 
"foo", 
"bar", 
}; 
Collection initializers are syntactic sugar for Add() calls. Above code is equivalent to: 
var temp = new List(); 
temp.Add("foo"); 
temp.Add("bar"); 
var stringList = temp; 
Note that the intialization is done atomically using a temporary variable, to avoid race conditions. 
For types that offer multiple parameters in their Add() method, enclose the comma-separated arguments in curly 
braces: 
var numberDictionary = new Dictionary 
{ 
{ 1, "One" }, 
{ 2, "Two" }, 
}; 
This is equivalent to: 
var temp = new Dictionary(); 
temp.Add(1, "One"); 
temp.Add(2, "Two"); 
var numberDictionarynumberDictionary = temp;