VBScript Reference Manual for InduSoft Web Studio

VBScript Reference Manual InduSoft Web Studio
TypeName() Function
TypeName is a read-only function that identifies the data subtype and returns a string that
contains the data subtype. This string can then be used in a flow control statement, or in a
message.
Return values from TypeName function
Return Value Description
Actual Type name of an Object
Boolean Boolean value (True or False)
Byte Byte value
Currency Currency value
Date Date or Time value
Decimal Decimal value
Double Double-precision floating-point value
Empty Uninitialized
Error Error
Integer Integer value
Long Long integer value
Nothing Object variable that doesn’t yet refer to an object instance
Null No valid data
Object Generic object
Single Single-precision floating-point value
String Character string value
Variant() Variant Array
Unknown Unknown object type
Dim MyVal
Dim a(9)
MsgBox TypeName(MyVal) ‘ Will get message “Empty”
MyVal = 5.2
MsgBox TypeName(MyVal) ‘ Will get message “Double”
Msgbox Typename(a) ‘ Will get message Variant()”
Key Notes:
1. When you pass an Array argument to the TypeName function, it will return value of
Variant(). This return value is not listed in Microsoft’s official documentation. Since
VBScript does not support data typing, there is no way to determine the data type of the
array. Instead, you must determine the data type of each element in the array, one
element at a time.
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