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<?xml version="1.0" encoding="utf-8"?>
<Type Name="GenericParameterAttributes" FullName="System.Reflection.GenericParameterAttributes">
<TypeSignature Language="C#" Value="public enum GenericParameterAttributes" />
<TypeSignature Language="ILAsm" Value=".class public auto ansi sealed GenericParameterAttributes extends System.Enum" />
<AssemblyInfo>
<AssemblyName>mscorlib</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Base>
<BaseTypeName>System.Enum</BaseTypeName>
</Base>
<Attributes>
<Attribute>
<AttributeName>System.Flags</AttributeName>
</Attribute>
</Attributes>
<Docs>
<since version=".NET 2.0" />
<remarks>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>The members of the <see cref="T:System.Reflection.GenericParameterAttributes" /> enumeration are divided into two groups, the variance group and the special constraints group. To test a <see cref="T:System.Reflection.GenericParameterAttributes" /> value for variance flags, first perform a bitwise AND operation with <see cref="F:System.Reflection.GenericParameterAttributes.VarianceMask" />. If the result is <see cref="F:System.Reflection.GenericParameterAttributes.None" />, there are no variance flags. Similarly, use <see cref="F:System.Reflection.GenericParameterAttributes.SpecialConstraintMask" /> to test for constraint flags. </para>
</remarks>
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>Describes the constraints on a generic type parameter of a generic type or method.</para>
</summary>
</Docs>
<Members>
<Member MemberName="Contravariant">
<MemberSignature Language="C#" Value="Contravariant" />
<MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Reflection.GenericParameterAttributes Contravariant = int32(2)" />
<MemberType>Field</MemberType>
<AssemblyInfo>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Reflection.GenericParameterAttributes</ReturnType>
</ReturnValue>
<Docs>
<since version=".NET 2.0" />
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>The generic type parameter is contravariant. A contravariant type parameter can appear as a parameter type in method signatures. </para>
</summary>
</Docs>
</Member>
<Member MemberName="Covariant">
<MemberSignature Language="C#" Value="Covariant" />
<MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Reflection.GenericParameterAttributes Covariant = int32(1)" />
<MemberType>Field</MemberType>
<AssemblyInfo>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Reflection.GenericParameterAttributes</ReturnType>
</ReturnValue>
<Docs>
<since version=".NET 2.0" />
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>The generic type parameter is covariant. A covariant type parameter can appear as the result type of a method, the type of a read-only field, a declared base type, or an implemented interface.</para>
</summary>
</Docs>
</Member>
<Member MemberName="DefaultConstructorConstraint">
<MemberSignature Language="C#" Value="DefaultConstructorConstraint" />
<MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Reflection.GenericParameterAttributes DefaultConstructorConstraint = int32(16)" />
<MemberType>Field</MemberType>
<AssemblyInfo>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Reflection.GenericParameterAttributes</ReturnType>
</ReturnValue>
<Docs>
<since version=".NET 2.0" />
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>A type can be substituted for the generic type parameter only if it has a parameterless constructor.</para>
</summary>
</Docs>
</Member>
<Member MemberName="None">
<MemberSignature Language="C#" Value="None" />
<MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Reflection.GenericParameterAttributes None = int32(0)" />
<MemberType>Field</MemberType>
<AssemblyInfo>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Reflection.GenericParameterAttributes</ReturnType>
</ReturnValue>
<Docs>
<since version=".NET 2.0" />
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>There are no special flags.</para>
</summary>
</Docs>
</Member>
<Member MemberName="NotNullableValueTypeConstraint">
<MemberSignature Language="C#" Value="NotNullableValueTypeConstraint" />
<MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Reflection.GenericParameterAttributes NotNullableValueTypeConstraint = int32(8)" />
<MemberType>Field</MemberType>
<AssemblyInfo>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Reflection.GenericParameterAttributes</ReturnType>
</ReturnValue>
<Docs>
<since version=".NET 2.0" />
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>A type can be substituted for the generic type parameter only if it is a value type and is not nullable.</para>
</summary>
</Docs>
</Member>
<Member MemberName="ReferenceTypeConstraint">
<MemberSignature Language="C#" Value="ReferenceTypeConstraint" />
<MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Reflection.GenericParameterAttributes ReferenceTypeConstraint = int32(4)" />
<MemberType>Field</MemberType>
<AssemblyInfo>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Reflection.GenericParameterAttributes</ReturnType>
</ReturnValue>
<Docs>
<since version=".NET 2.0" />
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>A type can be substituted for the generic type parameter only if it is a reference type.</para>
</summary>
</Docs>
</Member>
<Member MemberName="SpecialConstraintMask">
<MemberSignature Language="C#" Value="SpecialConstraintMask" />
<MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Reflection.GenericParameterAttributes SpecialConstraintMask = int32(28)" />
<MemberType>Field</MemberType>
<AssemblyInfo>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Reflection.GenericParameterAttributes</ReturnType>
</ReturnValue>
<Docs>
<since version=".NET 2.0" />
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>Selects the combination of all special constraint flags. This value is the result of using logical OR to combine the following flags: <see cref="F:System.Reflection.GenericParameterAttributes.DefaultConstructorConstraint" />, <see cref="F:System.Reflection.GenericParameterAttributes.ReferenceTypeConstraint" />, and <see cref="F:System.Reflection.GenericParameterAttributes.NotNullableValueTypeConstraint" />.</para>
</summary>
</Docs>
</Member>
<Member MemberName="VarianceMask">
<MemberSignature Language="C#" Value="VarianceMask" />
<MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Reflection.GenericParameterAttributes VarianceMask = int32(3)" />
<MemberType>Field</MemberType>
<AssemblyInfo>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Reflection.GenericParameterAttributes</ReturnType>
</ReturnValue>
<Docs>
<since version=".NET 2.0" />
<summary>
<attribution license="cc4" from="Microsoft" modified="false" />
<para>Selects the combination of all variance flags. This value is the result of using logical OR to combine the following flags: <see cref="F:System.Reflection.GenericParameterAttributes.Contravariant" /> and <see cref="F:System.Reflection.GenericParameterAttributes.Covariant" />.</para>
</summary>
</Docs>
</Member>
</Members>
</Type>
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