StructuralTypeConfiguration<TStructuralType>.HasOptional Method
Definition
Important
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Overloads
| HasOptional<TTargetEntity>(Expression<Func<TStructuralType,TTargetEntity>>) |
Configures an optional relationship from this structural type. |
| HasOptional<TTargetEntity>(Expression<Func<TStructuralType,TTargetEntity>>, Expression<Func<TStructuralType,TTargetEntity,Boolean>>) |
Configures an optional relationship with referential constraint from this structural type. |
| HasOptional<TTargetEntity>(Expression<Func<TStructuralType,TTargetEntity>>, Expression<Func<TStructuralType,TTargetEntity,Boolean>>, Expression<Func<TTargetEntity, IEnumerable<TStructuralType>>>) |
Configures an optional relationship with referential constraint from this structural type. |
| HasOptional<TTargetEntity>(Expression<Func<TStructuralType,TTargetEntity>>, Expression<Func<TStructuralType,TTargetEntity,Boolean>>, Expression<Func<TTargetEntity, TStructuralType>>) |
Configures an optional relationship with referential constraint from this structural type. |
HasOptional<TTargetEntity>(Expression<Func<TStructuralType,TTargetEntity>>)
Configures an optional relationship from this structural type.
public Microsoft.AspNet.OData.Builder.NavigationPropertyConfiguration HasOptional<TTargetEntity> (System.Linq.Expressions.Expression<Func<TStructuralType,TTargetEntity>> navigationPropertyExpression) where TTargetEntity : class;member this.HasOptional : System.Linq.Expressions.Expression<Func<'StructuralType, 'argetEntity>> -> Microsoft.AspNet.OData.Builder.NavigationPropertyConfiguration (requires 'argetEntity : null)Public Function HasOptional(Of TTargetEntity As Class) (navigationPropertyExpression As Expression(Of Func(Of TStructuralType, TTargetEntity))) As NavigationPropertyConfigurationType Parameters
- TTargetEntity
The type of the entity at the other end of the relationship.
Parameters
- navigationPropertyExpression
- Expression<Func<TStructuralType,TTargetEntity>>
A lambda expression representing the navigation property for the relationship. For example, in C# t => t.MyProperty and in Visual Basic .NET Function(t) t.MyProperty.
Returns
A configuration object that can be used to further configure the relationship.
Applies to
HasOptional<TTargetEntity>(Expression<Func<TStructuralType,TTargetEntity>>, Expression<Func<TStructuralType,TTargetEntity,Boolean>>)
Configures an optional relationship with referential constraint from this structural type.
public Microsoft.AspNet.OData.Builder.NavigationPropertyConfiguration HasOptional<TTargetEntity> (System.Linq.Expressions.Expression<Func<TStructuralType,TTargetEntity>> navigationPropertyExpression, System.Linq.Expressions.Expression<Func<TStructuralType,TTargetEntity,bool>> referentialConstraintExpression) where TTargetEntity : class;member this.HasOptional : System.Linq.Expressions.Expression<Func<'StructuralType, 'argetEntity>> * System.Linq.Expressions.Expression<Func<'StructuralType, 'argetEntity, bool>> -> Microsoft.AspNet.OData.Builder.NavigationPropertyConfiguration (requires 'argetEntity : null)Public Function HasOptional(Of TTargetEntity As Class) (navigationPropertyExpression As Expression(Of Func(Of TStructuralType, TTargetEntity)), referentialConstraintExpression As Expression(Of Func(Of TStructuralType, TTargetEntity, Boolean))) As NavigationPropertyConfigurationType Parameters
- TTargetEntity
The type of the entity at the other end of the relationship.
Parameters
- navigationPropertyExpression
- Expression<Func<TStructuralType,TTargetEntity>>
A lambda expression representing the navigation property for the relationship.
For example, in C# t => t.Customer and in Visual Basic .NET Function(t) t.Customer.
- referentialConstraintExpression
- Expression<Func<TStructuralType,TTargetEntity,Boolean>>
A lambda expression representing the referential constraint. For example,
in C# (o, c) => o.CustomerId == c.Id and in Visual Basic .NET Function(o, c) c.CustomerId == c.Id.
Returns
A configuration object that can be used to further configure the relationship.
Applies to
HasOptional<TTargetEntity>(Expression<Func<TStructuralType,TTargetEntity>>, Expression<Func<TStructuralType,TTargetEntity,Boolean>>, Expression<Func<TTargetEntity, IEnumerable<TStructuralType>>>)
Configures an optional relationship with referential constraint from this structural type.
public Microsoft.AspNet.OData.Builder.NavigationPropertyConfiguration HasOptional<TTargetEntity> (System.Linq.Expressions.Expression<Func<TStructuralType,TTargetEntity>> navigationPropertyExpression, System.Linq.Expressions.Expression<Func<TStructuralType,TTargetEntity,bool>> referentialConstraintExpression, System.Linq.Expressions.Expression<Func<TTargetEntity,System.Collections.Generic.IEnumerable<TStructuralType>>> partnerExpression) where TTargetEntity : class;member this.HasOptional : System.Linq.Expressions.Expression<Func<'StructuralType, 'argetEntity>> * System.Linq.Expressions.Expression<Func<'StructuralType, 'argetEntity, bool>> * System.Linq.Expressions.Expression<Func<'argetEntity, seq<'StructuralType>>> -> Microsoft.AspNet.OData.Builder.NavigationPropertyConfiguration (requires 'argetEntity : null)Public Function HasOptional(Of TTargetEntity As Class) (navigationPropertyExpression As Expression(Of Func(Of TStructuralType, TTargetEntity)), referentialConstraintExpression As Expression(Of Func(Of TStructuralType, TTargetEntity, Boolean)), partnerExpression As Expression(Of Func(Of TTargetEntity, IEnumerable(Of TStructuralType)))) As NavigationPropertyConfigurationType Parameters
- TTargetEntity
The type of the entity at the other end of the relationship.
Parameters
- navigationPropertyExpression
- Expression<Func<TStructuralType,TTargetEntity>>
A lambda expression representing the navigation property for the relationship.
For example, in C# t => t.Customer and in Visual Basic .NET Function(t) t.Customer.
- referentialConstraintExpression
- Expression<Func<TStructuralType,TTargetEntity,Boolean>>
A lambda expression representing the referential constraint. For example,
in C# (o, c) => o.CustomerId == c.Id and in Visual Basic .NET Function(o, c) c.CustomerId == c.Id.
- partnerExpression
- Expression<Func<TTargetEntity,IEnumerable<TStructuralType>>>
The partner expression for this relationship.
Returns
A configuration object that can be used to further configure the relationship.
Applies to
HasOptional<TTargetEntity>(Expression<Func<TStructuralType,TTargetEntity>>, Expression<Func<TStructuralType,TTargetEntity,Boolean>>, Expression<Func<TTargetEntity, TStructuralType>>)
Configures an optional relationship with referential constraint from this structural type.
public Microsoft.AspNet.OData.Builder.NavigationPropertyConfiguration HasOptional<TTargetEntity> (System.Linq.Expressions.Expression<Func<TStructuralType,TTargetEntity>> navigationPropertyExpression, System.Linq.Expressions.Expression<Func<TStructuralType,TTargetEntity,bool>> referentialConstraintExpression, System.Linq.Expressions.Expression<Func<TTargetEntity,TStructuralType>> partnerExpression) where TTargetEntity : class;member this.HasOptional : System.Linq.Expressions.Expression<Func<'StructuralType, 'argetEntity>> * System.Linq.Expressions.Expression<Func<'StructuralType, 'argetEntity, bool>> * System.Linq.Expressions.Expression<Func<'argetEntity, 'StructuralType>> -> Microsoft.AspNet.OData.Builder.NavigationPropertyConfiguration (requires 'argetEntity : null)Public Function HasOptional(Of TTargetEntity As Class) (navigationPropertyExpression As Expression(Of Func(Of TStructuralType, TTargetEntity)), referentialConstraintExpression As Expression(Of Func(Of TStructuralType, TTargetEntity, Boolean)), partnerExpression As Expression(Of Func(Of TTargetEntity, TStructuralType))) As NavigationPropertyConfigurationType Parameters
- TTargetEntity
The type of the entity at the other end of the relationship.
Parameters
- navigationPropertyExpression
- Expression<Func<TStructuralType,TTargetEntity>>
A lambda expression representing the navigation property for the relationship.
For example, in C# t => t.Customer and in Visual Basic .NET Function(t) t.Customer.
- referentialConstraintExpression
- Expression<Func<TStructuralType,TTargetEntity,Boolean>>
A lambda expression representing the referential constraint. For example,
in C# (o, c) => o.CustomerId == c.Id and in Visual Basic .NET Function(o, c) c.CustomerId == c.Id.
- partnerExpression
- Expression<Func<TTargetEntity,TStructuralType>>
The partner expression for this relationship.
Returns
A configuration object that can be used to further configure the relationship.