proper nullstring handling in CurrencyTextBox

Hello !, I have a CurrencyTextBox where I want to make a distinction to value 0 and value null. Initial I want to show no value to force the user to enter a value by himself. I tried it by defining CurrencyTextBox.NullString = "€ " and giving CurrencyTextBox the value null by CurrencyTextBox.Text = null. I have now 2 problems: 1: On entering the first digit nothing seems to happen; after that the other digits are added to the field; 2: When I try to delete the value the result will be " 0,00" instead of the NullString "€ ", so the user cannot create null value. Can anyone help me with this ? Thanx !! Eric

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