Adding, Removing and Replacing Strings
TheInsert method inserts a specified string at a specified index position
in an instance. For example, the following source code inserts "bbb"
after second character in str1 and the result string is "pbbbpp".
string str1 = "ppp";
string strRes = str1.Insert(2, "bbb");
Console.WriteLine(strRes.ToString());
TheRemove method deletes a specified number of characters from a specifiedposition in a string. This method returns result as a string. For
example, the following code removes three characters from index 3.
string s = "123abc000";
Console.WriteLine(s.Remove(3, 3));
TheReplace method replaces all occurrences of a specified character in a
string. For example, the following source code replaces all p character
instances of str1 with character l and returns string "lll".
string str1 = "ppp";
string repStr = str1.Replace('p', 'l');
Console.WriteLine("Replaced string:"+ repStr.ToString() );
TheSplit method separates strings by a specified set of characters and
places these strings into an array of strings. For example, the
following source code splits strArray based on ',' and stores all
separated strings in an array.
string str1 = "ppp";
string str2 = "ccc";
string str3 = "kkk";
string strAll3 = str1 + ", " +str2+", "+str3 ;
string[] strArray = strAll3.Split(',');
foreach (string itm in strArray)
{
Console.WriteLine(itm.ToString() );
}
Read C# Strings
to learn more about strings in C#.