There are several types of conditional rules. They are as follows:
- AverageRule class
- CellValueRule class
- DataBarRule class
- DateOccurringRule class
- DuplicateRule class
- FormulaRule class
- IconSetRule class
- TwoScaleRule class
- ThreeScaleRule class
- SpecificTextRule class
- Top10Rule class
- UniqueRule class
The following table lists the rules and descriptions:
| Rule | Description |
| Average rule | The average rule checks for values above or under the average. |
| Cell value rule | The cell value rule compares values. |
| Date rule | The date rule compares dates. |
| Formula rule | The formula rule allows you to use formulas when checking the condition. |
| Data bar rule | The data bar rule uses a bar that is displayed as the background for each cell. The length of the bar is based on the cell value. |
| Icon set rule | The icon set rule displays icons based on the values. You can specify the type of icon and whether to show the icon or the icon and the data in the cell. |
| Specific text rule | The specific text rule searches for text strings. |
| Top 10 rule | The top 10 rule checks for values in the top or bottom of the range. |
| Unique rule | The unique rule checks to see if the value is the only one of that value in the range. |
| Duplicate rule | The duplicate rule checks for duplicate values. |
| Scale rule | The scale rule uses a sliding color scale. For example if 1 is yellow and 50 is green, then 25 would be light green. The scale rule has an option for two or three colors in the scale (TwoColorScaleRule class or ThreeScaleRule class). |
The following image is for a three scale rule.
