Fix: CA1873 "Evaluation of this argument may be expensive and unnecessary if logging is disabled"
CA1873 fires on the implicit params object[] allocation, so almost every LogDebug call trips it. Fix it with [LoggerMessage] or an IsEnabled guard.
Tag: logging
6 posts
How to redact sensitive values from logs with LogProperties and data redaction in .NET
A complete guide to redacting classified data in source-generated logs: build a taxonomy, write a Redactor, wire EnableRedaction and AddRedaction, and understand the discriminator that silently breaks partial masking. With real output from Microsoft.Extensions.Compliance.Redaction 10.9.0.
Migrate from ILogger string interpolation to structured logging message templates in .NET 11
A step-by-step guide to converting $-interpolated ILogger calls into message templates and [LoggerMessage] source-generated methods on .NET 11: what breaks, how to sweep a codebase with CA2254, how to verify the JSON state, and how to roll back.
How to log the SQL that EF Core 11 generates
See the exact SQL Entity Framework Core 11 sends to your database, with parameter values, using LogTo, Microsoft.Extensions.Logging, and ToQueryString.
Migrate from Serilog to OpenTelemetry logging in .NET 11
A step-by-step guide to moving a .NET 11 app off Serilog and onto OpenTelemetry logging: the low-risk Serilog.Sinks.OpenTelemetry bridge, the full Microsoft.Extensions.Logging cut-over, what breaks, how to verify, and how to roll back.
How to set up structured logging with Serilog and Seq in .NET 11
A complete guide to wiring Serilog 4.x and Seq 2025.2 into a .NET 11 ASP.NET Core app: AddSerilog vs UseSerilog, two-stage bootstrap logging, JSON configuration, enrichers, request logging, OpenTelemetry trace correlation, API keys, and the production gotchas around buffering, retention, and signal level.