[VB.NET][TUT] STRINGS - Big TUT Collection Part 1

-------How to VB.NET String.Length()

The Length() function in String Class returned the number of characters occurred in a String.

System.String.Length() As Integer
Returns:
Integer : The number of characters in the specified String
For ex:
"This is a Test".Length() returns 14

Example:

 Public Class Form1  
   Private Sub Button1_Click(ByVal sender As System.Object, _  
   ByVal e As System.EventArgs) Handles Button1.Click  
     Dim str As String  
     str = "This is a Test"  
     MsgBox(str.Length())  
   End Sub  
 End Class  

-------How to VB.NET String.Insert()

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"

Example:

 Public Class Form1  
   Private Sub Button1_Click(ByVal sender As System.Object, _  
   ByVal e As System.EventArgs) Handles Button1.Click  
     Dim str As String = "This is VB.NET Test"  
     Dim insStr As String = "Insert "  
     Dim strRes As String = str.Insert(15, insStr)  
     MsgBox(strRes)  
   End Sub  
 End Class