Databar.SetFirstPriority Method (Excel)
Sets the priority value for this conditional formatting rule to "1" so that it will be evaluated before all other rules on the worksheet.
expression A variable that represents a Databar object.
When you have multiple conditional formatting rules in a worksheet, if the rule was not previously set to priority "1", this method will cause the priority of all other existing rules on the worksheet to be increased by one.
Note Priority levels for conditional formatting rules are applied on a worksheet-level basis.