Text box value based on two other text boxes

[shiftyspina]

Hi could anyone help please?

im trying to calculate a text box based on two different text boxes, so if my combox = eur then it shows the euro rate, if it equals usd it shows the usd rate, this works fine, if i put a figure say 20 in text box 2 once i have clicked through the form, the purchase price divides 20 by the rate, but if i change the combo box to usd it wont change the purchase price?.....

What am i doing wrong here?

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Thanks Dan

[shiftyspina]

Sussed it i changed purchaseprice_enter() to change() and also added a few change() and afterupdate() to the textbox2 and fxrate and it seems to work fine now