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Technical Blog Post
Abstract
Solution to Implement the dynamic logic For IBM Form Design
Body
How to implement the dynamic logic for IBM form design?
Author: Ellen Liu, Dan BJ Liu/China/IBM
This document introduced how to implement a custom validation for IBM Form. Form fields value will modify according to the dynamic logic.
Questions:
Customer wants to create a custom validation for an example suppose there are two fields customer_type and customer_type_name. Now if we enter customer_type, the customer_type_name field should not be blank.And if customer_type is blank then customer_type_name field should be blank.
Answer:
For requirement “if we enter customer_type, the customer_type_name field should not be blank.", we used the calculation in required field.
1.Add two fields customer_type and customer_type_name in the form template.
2.Show Properties of customer_type_name
3.Add calculation in required field as picture1-1.
picture1-1
And for requirement "if customer_type is blank then customer_type_name field should be blank"
I use a constraint bind:
Right click on customer_type_name2 field and choose Action Editor and then click custom action. Choose value from the options.
and then create a constraint bind Picture1-2. <xforms:bind constraint="choose(instance('formData')/page1/customer_type2 = '', . = '', true())" nodeset="instance('formData')/page1/customer_type_name2"></xforms:bind>
Picture1-2
that says that customer_type_name2 must be empty when customer_type2 is empty. So the form will look like Picture1-3 this if this constraint fails:
Picture1-3
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSCTJ4","label":"IBM Case Manager"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
UID
ibm11281748