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Get Array Lower Boundary Method

The Get Array Lower Boundary method returns the lowest index number of the dimension that the dimension argument identifies. The numbering for each dimension of an array starts at 1. If you do not include the dimension argument, then it uses 1 is the default.

You can use the Get Array Lower Boundary method with the Get Array Upper Boundary method to determine the length of an array.

Format

LBound(arrayname [, dimension] )

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

Example

The following example resizes an array if the user enters more data than this array can hold. It uses the LBound statement and the UBound statement to determine the existing size of the array. It uses the ReDim statement to resize the array. The Option Base statement sets the default lower boundary of the array to 1:

Option Base 1

Sub Button_Click
   Dim arrayvar() as Integer
   Dim count as Integer
   Dim answer as String
   Dim x, y as Integer
   Dim total
   total = 0
   x = 1
   count = 4
   ReDim arrayvar(count)
start:
   Do until x = count + 1
    arrayvar(x) = 98
    x = x + 1
   Loop
   x = LBound(arrayvar,1)
   count = UBound(arrayvar,1)
   For y = x to count
       total = total + arrayvar(y)
      Next y
End Sub