Hi,
i have the following for :
date:
station name:
inflow target:
outflow target:
inflow actual:
change of storage:
outflow actual:


and i have a bit of complicated issue,that when a user enters the inflow actual and change of storage,they should satisfy the following equation:

inflow actual - (change of storage) =~ outflow ctual
(=~ means the value of the right hand side should be equal or different by 2.5% from the left hand side)

i want the user when entering those values ,if they are more than the specified criteria,it gives a warning pop up message saying(your value exceeds the agreed range,do you want to continue)then yes or no buttons in order to fill the remaining fields of the form and press confirm to save them.
is that possible???

You could definitely if you displayed a message stored in a panel, and shown the panel whenever the user submitted the values; you could add javascript to the button that submits it that if the values are outside the range of calculation, whether you want to submit them or not. This works by adding an onclick, and stating "return CallFunctionToCalculate()". The function would do the calculation, and return a boolean that's returned from the Confirm javascript method. Confirm gives a yes/no response to the user, and returns a boolean.

Brian

I think you should do some research on using the Validation controls

These links might be useful

http://samples.gotdotnet.com/quickst...alidation.aspx
http://www.devhood.com/tutorials/tut...tutorial_id=46

Regards
Ganesh