#Field Linkage Rules

#Introduction

Field linkage rules allow for the dynamic adjustment of the state of fields in Form/Details blocks based on user actions. Currently, the blocks that support field linkage rules include:

• Form Block
• Details Block
• Sub-form

#Usage Instructions

#Form Block

In a Form block, linkage rules can dynamically adjust the behavior of fields based on specific conditions:

• Control field visibility (show/hide): Decide whether the current field is displayed based on the values of other fields.
• Set field as required: Dynamically set a field as required or not required under specific conditions.
• Assign value: Automatically assign a value to a field based on conditions.
• Execute specified JavaScript: Write JavaScript according to business requirements.

#Details Block

In a Details block, linkage rules are mainly used to dynamically control the visibility (show/hide) of fields on the block.

#Property Linkage

#Assign Value

Example: When an order is checked as a supplementary order, the order status is automatically assigned the value 'Pending Review'.

#Required

Example: When the order status is 'Paid', the order amount field is required.

#Show/Hide

Example: The payment account and total amount are displayed only when the order status is 'Pending Payment'.