calling setState in the widget resets the form.

[anovis]

I would like to toggle visibility of fields depending on the value of a checkbox (#316).

I am trying to set the state of a seperate variable, but everytime I call setState the state of the form resets to its initial state.

I defaulted a variable and toggle it via setState. everytime setState is called the form resets

Checkbox(
                      value: sameHours,
                      onChanged: (value) {
                        setState(() {
                          sameHours = value!;
                        })
                      },
                    ),

the following attempt using FormBuilderCheckbox didn't reset the form, but never updates the checkbox state (ie setsate for the form is not called)

   FormBuilderCheckbox(
                      name: "same_hours",
                      title: YText("Same Every day?"),
                      onChanged: (value) {
                        setState(() {
                          sameHours = value!;
                        });
                      },
                    )
                    

curious if I am doing something incorrect. or how i could toggle the visability of a field (external variable or internal)

Visibility(
                        visible: samehour or _formKey.currentState?.value["same_hours"],
                        child: FormBuilderCupertinoDateTimePicker(
                            name: "same_open",
                            initialValue: DateTime(1, 1, 1, 9, 0).toUtc(),
                            inputType: CupertinoDateTimePickerInputType.time,
                            decoration: formInput("same_open", width: 120))),
                            

using _formKey.currentState?.value["same_hours"] never updated the visibility

[deandreamatias]

Hi @anovis!
Try use _formKey.currentState?.instantValue["same_hours"]
The difference between instantValue and value is that value is only update when save the form (save() method)

[anovis]

Ah!!! thats it. Appreciate the help.