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Get Substring Method

The Get Substring method returns a portion of a string, starting at a location in the string that you specify. It allows you to get a substring from a string. It accepts any type of string, including numeric values, and converts the input value to a string. To modify a portion of a string, see Replace String Method.

Format

Mid[$](string, start[, length])

For information about the dollar sign, see Usage of the Dollar Sign.

The following table describes the arguments that you can use with this method.

Argument
Description

string

A string or string expression that contains the string that this method copies. If this value is NULL, then this method returns a Null variant.

Mid$ requires the string argument to be of type string or variant. For more information, see Variants.

start

An integer that identifies the starting position in the string argument to begin copying characters. The position of the first character in a string is 1.

If the number in the start argument is larger than the number of positions that the string contains, then this method returns a null string ("").

length

An integer that specifies the number of characters to copy.

Example

The following example returns the last name in a string that the user enters:

Sub Button_Click
   Dim username as String
   Dim position as Integer
   username = "Chris Smith"
   Do
      position = InStr(username," ")
      If position = 0 then
         Exit Do
      End If
      position = position + 1
      username = Mid(username,position)
      Loop
End Sub

      
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