How to: Iterate Through a Collection
This example uses the Add method on the Hashtable class to add entries to a Hashtable collection. It then uses a foreach statement to iterate through the collection.
Example
Hashtable phones = new Hashtable();
// Add items.
phones.Add("John", "555-0150");
phones.Add("Enju", "555-0199");
phones.Add("Molly", "555-0151");
phones.Add("James", "555-0142");
phones.Add("Ahmed", "555-0128");
phones.Add("Leah", "555-0100");
// Iterate through the collection.
System.Console.WriteLine("Name\t\tNumber");
foreach (string name in phones.Keys)
{
System.Console.WriteLine(name +"\t"+ phones[name]);
}
Compiling the Code
Copy the code and paste it into the Main method of a console application.
Add a using directive to the System.Collections namespace.