The regionall symbol displayed in figure The improved regionall symbol is composed
of three different symbols used to represent different forms of data;
this type of symbol is referred to as a composite symbol. You can
change the parameter values for symbol objects contained in the region
symbol statically.
To change the value of the parameter in the design view:
Select the symbol whose parameter value you want to change.
Open the Parameters tab in the Styling Customizer.
Change the value of the parameter.
Setting a symbol parameter statically
The value remains the same when you run the symbol.
For a composite symbol to be fully effective, you need
to change the parameter values for internal symbols dynamically. This
is done by creating parameters for the regionall symbol and binding
them to parameters contained in internal symbols.
To create parameters for the regionall symbol and bind
them to parameters of the internal symbols:
In the regionall symbol, create four integer parameters:
shipments
sales
production
status
Select the shipments object.
Select the Parameters tab in the Styling customizer.
Right-click the progress parameter.
A pop-up menu appears.
Select Enter an Expression in the pop-up menu.
The expression pop-up menu
Delete the value in the progress field.
The list of available parameters and expressions appears.
Select the @shipments parameter.
The value of the progress parameter for the shipments
symbol object is now bound to the shipments parameter of the regionall
symbol.
Select a parameter or expression
Bind the sales parameter to the progress parameter of
the sales object.
Bind the production parameter to the progress parameter
of the production object.
Bind the status parameter to the statusvalue parameter
of the overallstatus object.
You can now alter the appearance of internal symbols
by changing the value of top level symbol parameters.