The Insert() function in String Class will insert a String in a specified index in the String instance.
System.String.Insert(Integer ind, String str) as String
Parameters:
ind - The index of the specified string to be inserted.
str - The string to be inserted.
Returns:
String - The result string.
Exceptions:
System.ArgumentOutOfRangeException: startIndex is negative or greater than the length of this instance
System.ArgumentNullException : If the argument is null.
For ex:
"This is Test".Insert(8,"Insert ") returns "This is Insert Test"
VB.NET SourceCode
When you execute this program you will get the message box showing "This is VB.NET Insert Test"