/// <summary> /// <para> /// Attempts to configure the performance level (SERVICE_OBJECTIVE) for Azure SQL Database. /// </para> /// <para> /// Literals should be delimited with ''. See Azure SQL Database documentation for supported values. /// </para> /// </summary> /// <param name="modelBuilder"> The model builder. </param> /// <param name="performanceLevel"> The performance level of the database. </param> /// <param name="fromDataAnnotation"> Indicates whether the configuration was specified using a data annotation. </param> /// <returns> /// The same builder instance if the configuration was applied, /// <c>null</c> otherwise. /// </returns> public static IConventionModelBuilder HasPerformanceLevel( [NotNull] this IConventionModelBuilder modelBuilder, [CanBeNull] string performanceLevel, bool fromDataAnnotation = false) { if (modelBuilder.CanSetPerformanceLevel(performanceLevel, fromDataAnnotation)) { modelBuilder.Metadata.SetPerformanceLevel(performanceLevel, fromDataAnnotation); return(modelBuilder); } return(null); }