# How the bar graph works at run time

The fill level in the bar graph increases and decreases to reflect the Value connection value at the data source. The bar graph’s behavior at run time also depends on how you set up thresholds and controls.

## Use thresholds

If you set up thresholds for the bar graph, when the Value connection value is at or above the threshold value, the color of the fill changes (if you set up different fill colors on the General tab). You can also configure the section of the bar graph at or above the threshold level to blink.

## Open graphic displays

When you open a display at run time, the application reads the Value connection value and updates the bar graph based on the value.

## See also

Create bar graphs

Configure the bar graph (General tab)

Set up controls for the bar graph

Example: Use a bar graph