Hi guys, its me again. This time i am having some problems when i try to do some validation to the data that i want to persist.
Based on what i understand, whenever an entity's value is changed, the following functions will be called: SetNewFieldValue(), then OnValidateFieldValue(), am i rite?
However, my problem is, how do i actually utilize the returned value from these functions?
I would like to do something at the application tier (GUI) like:
UserProfile.Name = txtName.Text;
the name attribute should be having string length btween 0-200.
But everytime when the above code is ran, it will pop me to the VS Studio development
window with a pop up warning window saying "ArgumentOutOfRangeException was unhandled by user code"
I had tried using if statements when assigning, e.g.:
if (UserProfile.Name = txtName.Text)
to see if this can give me the status of the inserting, however to no avail.
Please can someone help me on this? Thank you so much.
