I'm new to Delgue coding and I'm attempting to select a value in a lookup dropdown list in a subform and haven't been able to get it to work at all. I'm able to create a row and enter data into the two date fields correctly, but the dropdown menu remains blank. My code is as follows so far:

2. // declaring the row
3. row1 = Training_Curriculum.Training_Requirements();
4. 
   
5. // assigning values for various subform fields in the row
   
7. row1.Requirement_name = "1";
8. row1.Start_Date=zoho.currentdate;
9. row1.Completion_Date=zoho.currentdate;
10. // declare a variable to hold the collection of rows
11. subForm_collection = Collection();
12. subForm_collection.insert( row1 );
13. 
    
14. // insert the rows into the subform through the variable
15. input.Training_Requirements.insert( subForm_collection );
16. 
    

Thanks in advanced for any help.