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<PackageReference Include="DotNext" Version="4.15.2" />

.NET API 592,280 bytes

RequiredAttribute<T>

public sealed class RequiredAttribute<T> : RequiredAttribute

Checks whether the data field of type Optional<T> has a value.

public bool AllowNull { get; set; }

Specifies whether Optional<T> may contain null value.

public RequiredAttribute()