Function Module GUI_DOWNLOAD: Type String Issue

[Former Member]

I am working in 4.6C. I have used this Function Module many times in the past without issue, but not at this site. It abends and gives me the error message:

The call to the function module "GUI_DOWNLOAD" is incorrect:

The function module interface allows you to specify only fields

of a particular type under "FILENAME". The field "FNAME" specified here

has a different field type.

Here is the field declaration in the code:

PARAMETER: fname type rlgrap-filename DEFAULT 'C:/New_PO_Format.xls'.

The import parameter in GUI_DOWNLOAD for FILENAME is type STRING. When I double click on STRING in the FM I get "Unable to find a tool to process request". And, TYPE STRING does not exist in the system? I started making a Z version of GUI_DOWNLOAD, but it started giving me headaches because I had to start copying other SAP function modules.

Am I missing something? Or, is there a new and improved version of GUI_DOWNLOAD to use?

[Former Member]

Hi Tom,

Just define your parameter as : fname TYPE string as well. (string is generic type, you will not find in the dicationary!).

Regards,

John.

[Former Member]

I did this:

PARAMETER: fname type string

DEFAULT 'C:/New_PO_Format.xls'.

I get syntax error The nested data type string is not allowed.

? Thanks

[Former Member]

data : v_file type string.

PARAMETER: fname type rlgrap-filename DEFAULT 'C:/New_PO_Format.xls'.

start-of-selection.

v_file = fname.

use v_file in gui_download parameter.

Thanks

Seshu