### About Expressions

Expressions are special commands that you place inside of supporting controls to pull specific data from Datapage+ or the database into the report. Expressions always start with an equals sign (=) and are followed by the expression name.

For example, if you wanted to display a run chart inside a label, your label template must have a control that uses the =RunChart expression.

Sample expressions in a label template

These topics are covered in this section:

- Adding Expression to the GridControl

- Expressions List