Hy thanks for your reply,
we will set the NumberInput to 0 before setting it NULL. This should fix the problem for now. But we noticed a second error. If the NumberInput is set to Null you cant type a – in the input field. It causes an error also. In the fiddle you can create the error_
– click the button “click me second”
– type an ‘-‘ into the NumberInput field
thx in advance