BL0005: Component parameter should not be set outside of its component

Value
Rule ID BL0005
Category Usage
Fix is breaking or non-breaking Non-breaking

Cause

A property on a type deriving from ComponentBase annotated with [Parameter] is being assigned to from outside the component.

Rule description

Component parameters should be assigned to as part of the component initialization or as part of SetParametersAsync. Assigning a value to a parameter from an external source results in the value being overwritten the next time the component renders.

How to fix violations

Consider using a distinct property to receive values from other components. Additional code can then be written to decide which of the two values to use in the component.

When to suppress warnings

Do not suppress a warning from this rule.