XForms attribute

ປະເພດ XForms ສາມາດກໍານົດການກຳນົດຂໍ້ມູນ, ແບບຂອງມັນແລະພາບການ.

XForms attribute

XForms ນຳໃຊ້ປະເພດເພີ່ມມີຄວາມກຳລັງຕໍ່ກັບພາກສ່ວນ XForms (ຫຼືປະເພດອື່ນໆ).

ຕົວຢ່າງ:

required="true()" ການອະນຸຍາດບໍ່ອະນຸຍາດສະເພາະມີຂໍ້ມູນລະບົບທີ່ບໍ່ມີຄວາມສະຫຼາກຫຼາຍສຳລັບການສົ່ງປະຈັກ.

type="decimal" Attributes allow only decimal values to be submitted.

calculate Attributes can calculate a value from instance data.

See the attribute reference below this page.

Binding attributes to data

XForms can use the <bind> element to bind XForms attributes to XForms data:

<model>
<instance>
  <person>
      <fname/>
      <lname/>
  </person>
</instance>
<bind nodeset="person/lname" required="true()"/>
</model>

In the above example, the attribute nodeset="person/lname" can bind the attribute required="true()" to the instance data element <lname>.

XForms attribute reference

Name Description
calculate Define calculations to be performed on the item.
constraint Define constraints on the item.
p3ptype Define the P3P data type for the item.
readonly Define an edit restriction (edit restriction) for the item (cannot be modified)
relevant Define how the data is related. (For display or submission)
required Defining data items is a required item. (Cannot be empty)
type Define data types for the project.