- 
        Double-click
on the target method to open the properties window for that attribute.
      
 
- 
        Select Method Attributes.
      
 
- 
        Select Parameters...
      
 
- 
        Click Add.
      
 
- 
        In the first column, select In or Out, depending on whether
you are making an input or output parameter.
      
 
- 
        Type a name for the parameter. All parameters for a given method must be named uniquely.
      
 
- 
        Select a data type from the Type list.
      
 
- 
        For input Parameters, you can enter a default value
in the Value field. The default value will be overridden if the calling
component provides a value for the parameter. You can set this to a constant
value or enter a valuespec expression for drawing a dynamic value.
See the table below for some examples of how to set this.
        
          For output Parameters, you can select "nullable". 
         
       
- 
        Click OK.
      
 
    
      To remove a parameter, select the target parameter on the Parameters window and click Delete.
      To change a parameter's settings, select the target parameter in the Parameters window.
Use the controls as described above to make
changes and then click OK to apply your new settings.