|
Determines
whether the given parameter is a reference syntax with a non-null, non-empty,
or non-blank value.
Parameters
|
Parameter
|
Description
|
|
v
|
A valid reference syntax expression.
If
v
is
not a reference syntax, the function returns false (
0
).
|
Examples
The
following expressions are examples that use the
HasValue
function.
|
Expression
|
Returns
|
|
HasValue(2)
|
True (
1
)
|
|
HasValue(" ")
|
False (
0
)
|
|
HasValue(Amount[*])
|
Error
|
|
HasValue(Amount[0])
|
Evaluates the first occurrence of
Amount
and
returns true (
1
) if it is a non-null, non-empty,
or non-blank value.
|
|
|
|
