to restrict from user inserting null values

[samkry]

Hi..
How to restrict from user inserting null values in insert pages...I have 3
ttextfields in my insert form so I need user to insert all the values in these
3 columns, if the user failed to do so and error message will pop up , so how
could I do this??

[greekchild]

Hi, You can click on Window, Behaviours, Then click the + sign beside
behavious and there is a button called validate form .. self explanatory from
there on... Make sure you open up the behviours window though and not the
server behavious window