//Using the Split instance method on the String class, you can place the delimited
//information into an array in as little as a single line of code.

private void GetItemsFromDelimitedString()
{
string delimitedInfo = "100,200,400,3,67";
string[] discreteInfo = delimitedInfo.Split(new char[] { ',' });
foreach (string Data in discreteInfo)
MessageBox.Show(Data);
}


منبع : "C#‎ 3.0 Cookbook™, Third Edition"