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using System.Diagnostics.CodeAnalysis;
namespace System.ComponentModel.DataAnnotations.Schema {
/// <summary>
/// Specifies how the database generates values for a property.
/// </summary>
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = false)]
[SuppressMessage("Microsoft.Performance", "CA1813:AvoidUnsealedAttributes", Justification = "We want users to be able to extend this class")]
public class DatabaseGeneratedAttribute : Attribute {
/// <summary>
/// Initializes a new instance of the <see cref="DatabaseGeneratedAttribute"/> class.
/// </summary>
/// <param name="databaseGeneratedOption">The pattern used to generate values for the property in the database.</param>
public DatabaseGeneratedAttribute(DatabaseGeneratedOption databaseGeneratedOption) {
if (!(Enum.IsDefined(typeof(DatabaseGeneratedOption), databaseGeneratedOption))) {
throw new ArgumentOutOfRangeException("databaseGeneratedOption");
}
DatabaseGeneratedOption = databaseGeneratedOption;
}
/// <summary>
/// The pattern used to generate values for the property in the database.
/// </summary>
public DatabaseGeneratedOption DatabaseGeneratedOption { get; private set; }
}
}
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