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Friday, 19 December 2014

Cascading multi select parameters example in pentaho CDE

Hello Guys

You will learn how to do cascading with multi select components in pentaho CDE . There is another post on the same topic in this site which was a basic one.

In this you will find the implementation of 
1) Custom parameters & default values
2) Multi select input controls cascading. 
3) Fixed height & back ground color for  input controls.
    
Final Look of the cascading parameter :

One of the Layouts design for selects (Country select place holder) [Not the Country label  place]

  
Custom Parameters :
param1 for country
Default value in Javascript code  ["US","Canada"]

param2 for state
Default value in Javascript code ["BC","WA"]

param3 for city


select1 for country
    select 1 parameter & listener is : param1


select2 for state
     select2 listeners
     
    select2 parameters (at only parameter place give param2)

select3 for city
    select3 listeners
    

    select3 parameters (at only parameter place give param3)

 Query 1 : country query (SELECT DISTINCT country FROM customer)


Query2 : state query
SELECT DISTINCT state_province FROM customer WHERE country IN (${param1})
NOTE : for multiple selection parameter name should be given with in bracket i.e., with in ()




Query 3 : city query
SELECT
    DISTINCT city FROM customer
WHERE
          (
               country IN (${param1}) 
             AND
             state_province IN(${param2})
          )

NOTE : for multiple selection parameter name should be given with in bracket i.e., with in ()




OUTPUT :  Image 1

Download the example : Click Me - Cascading multi select and HTML tabs examples


:-) Sadakar :-)

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