[b]Creating custom search screen[/b]

Question

I created a form to search by CustomerNO or Last Name and to display the customer info if found or all customers that begin with Last name. I have a main canvas with 2 items(textboxes) for 1 for each search. I also have a stacked canvas that will be displayed when the info is found. Problem is how can I open this form in enter_query mode to accept customerno or lastname and then click on my own created button(search) to execute the query. I am setting the where clause in the pre-query trigger of the datablock for the stacked canvas. When I run this form it only works if after I enter the criteria in either item textbox and press CTRL-F11, but I don't want to do this. What I want is for my user to click on my button (search). Please HELP!!!!!!!

Answer 1

Okay this worked, but I also have to change the where clause to search by last name. What am I doing wrong?
set_block_property(block_name,default_where,'Last_name = ' || 'SMITH');
execute_query;
I get an error after it tries to execute: FRM-40350 "Query cause no records to be retrieved"