I have a form, on the form is a dropdown populated from a table.
Is it possible to add a date into another field on the form that is based on the selection of the dropdown at the top of the form.
Eg. if the first option is selected the date in the field would be today's date+30days.

Please help me I am really stuck

<input name="ExpiryDate" type="hidden" class="form-control" id="inp_ExpiryDate" dmx-bind:value="var1.datetime.toDate().addDays(inp_Severity.value)">

this is what I have so far the Severity.value is set to an integer (30) however it is adding on 6 years rather than 30 days

its ok I figured it out. You have to format the input as a number as it pulls the info as a text field by default