Sometime you need to dynamically generate a form without knowing how many fields it will be required (i.e. when your form is driven by a configuration or by some properties). The problem is to draw the form and, return the values to the Controller, and recognize the couples Field name \/ Field value after the submit..<\/p>\n
You can easily get solve this problem just adding HashMap which will hold the key-value pair data to the DataModel.<\/p>\n
Supposing your configuration says: you have to draw two fields and these are the name, you UI will be something like*:<\/p>\n
\r\n\r\n\tWhen you submit the form, the values and the key for the dynamic fields will be filled. <\/p>\n
* newRequest is the DataModel you are passing and fields is the list of Fields that user will fill with data, like that:<\/p>\n
public class Request {\r\n\r\n\t\/** Request type *\/\r\n\tprivate int templateRequest;\r\n\t\r\n\t\/\/ ***** Input field ***** \r\n\tList fields = new ArrayList();\r\n\t\r\n\tprivate HashMap rawFields = new HashMap();\r\n \r\n\t[Setters and getters]\r\n\r\n}<\/pre>\nShare this:<\/h3>