Is there a way to open date/time picker using a UI macro button ?

[shubhampatel]

I want to set the date/time value to a read only field which stores string values.

Thanks,

Shubham Patel

[chirag_bagdai]

And you can have UI Policy/ onChange client script to keep both date field in sync.

[shubhampatel]

I want a custom date field format for just one field and don't want to change it for all fields.

1. var field_id = g_form.getControl('start_date').name;  
2. new GwtDateTimePicker(field_id, 'yyyy-MM-dd HH:mm:ss', true);  

does't seem to work

[chirag_bagdai]

That script was for catalog item...

Here it won't work because you have string field type and you are trying to make that field to act like   datepicker, right ? for making any field as datepicker, you need to use "Datepicker" plugin.

If you want to make readOnly field then I would say don't display datepicker icon and just create onChange client script on "Installed" date and use below script to set field value:

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
   if (isLoading || newValue === '') {
   return;
   }
   g_form.setValue('u_custom_string_field',g_form.getValue('closed_at'));
   //Type appropriate comment here, and begin script below

}

If that don't work for you, I would say then please explain your use case with some example   ?