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CA2253: Named placeholders should not be numeric values

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Property Value
Rule ID CA2253
Title Named placeholders should not be numeric values
Category Usage
Fix is breaking or non-breaking Non-breaking
Enabled by default in .NET 9 As suggestion

Cause

A message placeholder consists of numeric characters only.

Rule description

Named placeholders in the logging message template should not be comprised of only numeric characters.

How to fix violations

Rename the numeric placeholder.

For usage examples, see the LoggerExtensions.LogInformation method.

When to suppress errors

Do not suppress a warning from this rule.

See also