Dialog Programming date search help

Hi.

I'm doing an UI for maintain a table and i did the following:

1. Create an structure in the dictionary that contains the table's fields.

2. Create a module pool and into the TOP include i have declared an internal table that includes the structure:

DATA: BEGIN OF it_table OCCURS 0.
        INCLUDE STRUCTURE z_str_table.
DATA: END OF it_table.

3. Create a new dynpro.

4. In the screen painter i have used the wizard for create a table into the dynpro. Following the wizard steps, Indicate to the wizard that use the internal table, thet select the fields to be displayed, then mark input and selection column, then select the table functions and indicate the includes for PAI, PBO, TOP and Forms.

My problem is that the structure has a date fields and into the dynpro table those fields doesn't have the standard search help.

Do somebody knows what can i do to make the standard search help available for those fields?

Please i need some help on that urgent.

Regards.

Gregory.