Variable Data Type
 

How can you tell the data type of a variable ?

The defined name "Test" has a Refers to: field of =SUM(A1,B1).

1) In the example below, what would the data type for "v" be ?

v = Application.Evaluate(ActiveWorkbook.Names("Test"))

2) For a ComboBox containing text values, what would the data type for
"x" be for the currently selected value ?




- Ronald K.

Variable Data Type
 

On Wed, 28 Sep 2011 20:36:47 -0400, "kittronald" wrote:

How can you tell the data type of a variable ?

The defined name "Test" has a Refers to: field of =SUM(A1,B1).

1) In the example below, what would the data type for "v" be ?

v = Application.Evaluate(ActiveWorkbook.Names("Test"))

2) For a ComboBox containing text values, what would the data type for
"x" be for the currently selected value ?




- Ronald K.


The data type of a variable is determined by your type declaration. If you don't specifically declare the data type (a poor practice, in my opinion), it will be a variant data type.

Variable Data Type
 

On 29/09/2011 01:36, kittronald wrote:
How can you tell the data type of a variable ?

The defined name "Test" has a Refers to: field of =SUM(A1,B1).

1) In the example below, what would the data type for "v" be ?

v = Application.Evaluate(ActiveWorkbook.Names("Test"))

Depends on whether =SUM(A1,B1) gives a valid answer or not.

Success will be a Double or failure will be an Error
(there might be other possibilities)

Simple clip to test

Sub test()
x = 1
y = "hello"
Z = Application.Evaluate("=SUM(A1..B2)")

Debug.Print x, TypeName(x)
Debug.Print y, TypeName(y)
Debug.Print Z, TypeName(Z)
End Sub


2) For a ComboBox containing text values, what would the data type for
"x" be for the currently selected value ?

I think either a Long internally or a Double in the linked cell
depending on exactly how you ask the question. Do the experiment to
check it to be sure.

Regards,
Martin Brown

Variable Data Type
 

"Martin Brown" wrote in message
...
On 29/09/2011 01:36, kittronald wrote:
How can you tell the data type of a variable ?

The defined name "Test" has a Refers to: field of =SUM(A1,B1).

1) In the example below, what would the data type for "v" be ?

v = Application.Evaluate(ActiveWorkbook.Names("Test"))

Depends on whether =SUM(A1,B1) gives a valid answer or not.

Success will be a Double or failure will be an Error
(there might be other possibilities)

Simple clip to test

Sub test()
x = 1
y = "hello"
Z = Application.Evaluate("=SUM(A1..B2)")

Debug.Print x, TypeName(x)
Debug.Print y, TypeName(y)
Debug.Print Z, TypeName(Z)
End Sub


2) For a ComboBox containing text values, what would the data
type for
"x" be for the currently selected value ?

I think either a Long internally or a Double in the linked cell
depending on exactly how you ask the question. Do the experiment to
check it to be sure.

Regards,
Martin Brown

I have on occasion used typename() against a range.value to test for
error conditions -- that is one advantage of using the variant type
instead of specific typing. If memory serves, the iserror() function can
be useful when working with variants and formula results.

--
Clif McIrvin

(clare reads his mail with moe, nomail feeds the bit bucket :-)

Variable Data Type
 

Clif,

Thanks for the help.



- Ronald K.

Variable Data Type
 

Martin,

Using Debug.Print helped a lot.

The problem I was running into was that the Refers to: field had an IF
statement (i.e., =IF(SUM(A1,B1)3,SUM(A1,B1),"Error").

So the result could be a number or a text value.

Is "As Variant" the appropriate data type for this type of situation ?

Thanks again for the help.



- Ronald K.