Printing dynamic text in Smartform

Hi frens,

I have got a Smartform to which I send a field containing the INCLUDE text name(maintained in so10). This text name depends on the matnr and is determined with a logic in the print program. How can I print this text in the smartform?

Ex: I have field in smartform z_itab-tmattext.

This contains a value 'z_31608_mat_text'.

I have tried with Dynamic Text option but its giving an error.

thanks

Asha