# On event

Use this part to begin a flowchart whenever a specified condition of a property is met or changes value.

1. Use the Property chooser to select the property.
2. Click on the equals sign (=) in the middle of the part and select an option from the list of possible comparisons. Use 'changes' if you want the flowchart to start when the value changes.
3. Click on the underlined value to change the property condition.

## See also:

- Tips for using the On event part
- Stop
- Using flowcharts parts