![parameters 06](../figures/parameters-06.png)
Using Parameters
Parameters in Properties of Components
When you have defined, for example, a FILTER_EXPRESSION
(parameter) which means a filter expression, you can use ${FILTER_EXPRESSION}
instead of defining the filter expression in each Filter.
![parameters 06](../figures/parameters-06.png)
Figure 255. Filter Component Configured by Graph Parameter
CTL2 expressions can be used as a parameter value, see Parameters with CTL2 Expressions (Dynamic Parameters).
Using Parameters in CTL
If you use parameters in CTL, you should get their value via getParamValue("MyParameter")
.
Be careful when working with them, you can also use escape sequences for specifying some characters.