[Qgis-user] Hide/Show form field depending on precedent field values

[Andreas Neumann]

Hi Arnaud,

You cannot have conditional visibility on a single widget (unless you do 
it yourself with Python), but you can have conditional visibility on a 
group based on an expression that can reference the value of another 
field.

Create a "Group" container in the drag and drop form with the "green 
plus" icon. Then click on the group, activate the "Control visibility by 
Expression" and enter your expression. The expression needs to return 1 
for visible or 0 for not visible.

Hope this helps,

Andreas

On 2021-06-11 07:01, Arnaud Vandecasteele wrote:

> Hi,
> 
> When creating a form by drag and drop fields, all fields are displayed 
> unless you choose the hidden widget or you remove them from the field.
> 
> But how to hide or show a form field depending on whether the user has 
> completed a previous field?
> 
> Thanks,
> 
> Arnaud
> 
> --
> 
> --------------------------------------------------------------------
> Arnaud Vandecasteele
> 
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