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Option Base Statement
This standard VB statement specifies the default lower bound to use for array subscripts.
Syntax
Option Base lowerBound
Placeholder Description lowerBound Either 0 or 1 or an expression that evaluates to one of these values
Returns
Not applicable
Usage
If no Option Base statement is specified, the default lower bound for array subscripts is 0.
The Option Base statement is not allowed inside a procedure and must precede any use of arrays in the module. Only one Option Base statement is allowed per module. It must be placed in the (general) (declarations) section in the Siebel VB Editor, as shown in Figure 1.
Example
This example resizes an array if the user enters more data than can fit in the array. It uses LBound and UBound to determine the existing size of the array and ReDim to resize it. Option Base sets the default lower bound 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 = 2
ReDim arrayvar(count)
start:
Do until x = count + 1
arrayvar(x) = 87
x = x + 1
Loop
x = LBound(arrayvar,1)
count = UBound(arrayvar,1)
For y = x to count
total = total + arrayvar(y)
Next y
End SubSee Also
Dim Statement
Global Statement
LBound Function
ReDim Statement
Static Statement
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Siebel VB Language Reference Published: 18 June 2003 |