VBScript Reference Manual for InduSoft Web Studio

VBScript Reference Manual InduSoft Web Studio
VarType
Description Returns a value indicating the subtype of a variable.
Usage VarType(varname)
Arguments varname
The required varname argument can be any variable.
Return An Integer. The VarType function returns the following values
Constant Value Description
vbEmpty 0 Empty (uninitialized)
vbNull 1 Null (no valid data)
vbInteger 2 Integer
vbLong 3 Long integer
vbSingle 4 Single-precision floating-point number
vbDouble 5 Double-precision floating-point number
vbCurrency 6 Currency
vbDate 7 Date
vbString 8 String
vbObject 9 Automation object
vbError 10 Error
vbBoolean 11 Boolean
vbVariant 12 Variant (used only with arrays of Variants)
vbDataObject 13 A data-access object
vbByte 17 Byte
vbArray 8192 Array
Remarks These constants are specified by VBScript. As a result, the names can be used anywhere in your
code in place of the actual values.
The VarType function never returns the value for Array by itself. It is always added to some other
value to indicate an array of a particular type. The value for Variant is only returned when it has
been added to the value for Array to indicate that the argument to the VarType function is an
array. For example, the value returned for an array of integers is calculated as 2 + 8192, or 8194.
If an object has a default property, VarType (object) returns the type of its default property.
See Also IsArray, IsDate, IsEmpty, IsNull, IsNumeric, IsObject, TypeName
Example The following example uses the VarType function to determine the subtype of a variable.
Dim MyCheck
MyCheck = VarType(300) ' Returns 2.
MyCheck = VarType(#10/19/62#) ' Returns 7.
MyCheck = VarType("VBScript") ' Returns 8.
166 InduSoft, Ltd.