SSRS Parameter help "Drop down or free text"

SSAS and SSRS
1

Hi Guys,
Need help. I created a SSRS report for the user to user(s) can insert or update records in the Config table.The First Parameter has to drop down option and values are "Insert, Update" What I want,
Step 1 = If user select INSERT, Next Parameter 2 should have free text to type the value
Step 2 = I‌F user select UPDATE, Next Parameter 2 should have a drop down values from.

I‌ got Step 2 and it is working but I need help with Step one. Any advice would be greatly appreciated.‌

2

be careful with free text. You could expose yourself to injection.

e.g. suppose the free text was (after the INSERT):

select top (0) 1; drop table yourtablename