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How do you pass parameters to a method in Spring Web Flow 2

 
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How do you pass a parameter to a method in webflow. My method signature is as below for which I wrote the code below that. It is not accepting, and giving the error given below. Could some one guide me how to pass the parameter. More over I find scope being set to the variable. Could someone guide me how to pass the variables.
Method Signature

Web Flow Code

Error

Method call: Method addToDo() cannot be found on com.prasad.todo.domain.ToDoList type


 
VenkataPrasad Regula
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I downloaded the code at the following url, from which i got the answer

http://wheelersoftware.com/articles/spring-web-flow-2.0-7.html

Related Code
 
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