DbExpressionBuilder.Property Method
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Creates a new DbPropertyExpression representing the retrieval of the specified property.
| Property(DbExpression, EdmProperty) |
Creates a new DbPropertyExpression representing the retrieval of the specified property. |
| Property(DbExpression, NavigationProperty) |
Creates a new DbPropertyExpression representing the retrieval of the specified navigation property. |
| Property(DbExpression, RelationshipEndMember) |
Creates a new DbPropertyExpression representing the retrieval of the specified relationship end member. |
| Property(DbExpression, String) |
Creates a new DbPropertyExpression representing the retrieval of the instance property with the specified name from the given instance. |
Creates a new DbPropertyExpression representing the retrieval of the specified property.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbPropertyExpression ^ Property(System::Data::Common::CommandTrees::DbExpression ^ instance, System::Data::Metadata::Edm::EdmProperty ^ propertyMetadata);public static System.Data.Common.CommandTrees.DbPropertyExpression Property(this System.Data.Common.CommandTrees.DbExpression instance, System.Data.Metadata.Edm.EdmProperty propertyMetadata);static member Property : System.Data.Common.CommandTrees.DbExpression * System.Data.Metadata.Edm.EdmProperty -> System.Data.Common.CommandTrees.DbPropertyExpression<Extension()>
Public Function Property (instance As DbExpression, propertyMetadata As EdmProperty) As DbPropertyExpressionParameters
- instance
- DbExpression
The instance from which to retrieve the property. May be null if the property is static.
- propertyMetadata
- EdmProperty
Metadata for the property to retrieve.
Returns
A new DbPropertyExpression representing the property retrieval.
Exceptions
propertyMetadata is null or instance is null and the property is not static.
Applies to
.NET Framework 4.8.1 и други версии
| Продукт | Версии |
|---|---|
| .NET Framework | 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Creates a new DbPropertyExpression representing the retrieval of the specified navigation property.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbPropertyExpression ^ Property(System::Data::Common::CommandTrees::DbExpression ^ instance, System::Data::Metadata::Edm::NavigationProperty ^ navigationProperty);public static System.Data.Common.CommandTrees.DbPropertyExpression Property(this System.Data.Common.CommandTrees.DbExpression instance, System.Data.Metadata.Edm.NavigationProperty navigationProperty);static member Property : System.Data.Common.CommandTrees.DbExpression * System.Data.Metadata.Edm.NavigationProperty -> System.Data.Common.CommandTrees.DbPropertyExpression<Extension()>
Public Function Property (instance As DbExpression, navigationProperty As NavigationProperty) As DbPropertyExpressionParameters
- instance
- DbExpression
The instance from which to retrieve the navigation property.
- navigationProperty
- NavigationProperty
Metadata for the navigation property to retrieve.
Returns
A new DbPropertyExpression representing the navigation property retrieval.
Exceptions
navigationProperty or instance is null.
Applies to
.NET Framework 4.8.1 и други версии
| Продукт | Версии |
|---|---|
| .NET Framework | 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Creates a new DbPropertyExpression representing the retrieval of the specified relationship end member.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbPropertyExpression ^ Property(System::Data::Common::CommandTrees::DbExpression ^ instance, System::Data::Metadata::Edm::RelationshipEndMember ^ relationshipEnd);public static System.Data.Common.CommandTrees.DbPropertyExpression Property(this System.Data.Common.CommandTrees.DbExpression instance, System.Data.Metadata.Edm.RelationshipEndMember relationshipEnd);static member Property : System.Data.Common.CommandTrees.DbExpression * System.Data.Metadata.Edm.RelationshipEndMember -> System.Data.Common.CommandTrees.DbPropertyExpression<Extension()>
Public Function Property (instance As DbExpression, relationshipEnd As RelationshipEndMember) As DbPropertyExpressionParameters
- instance
- DbExpression
The instance from which to retrieve the relationship end member.
- relationshipEnd
- RelationshipEndMember
Metadata for the relationship end member to retrieve.
Returns
A new DbPropertyExpression representing the relationship end member retrieval.
Exceptions
relationshipEnd is null or instance is null and the property is not static.
Applies to
.NET Framework 4.8.1 и други версии
| Продукт | Версии |
|---|---|
| .NET Framework | 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Creates a new DbPropertyExpression representing the retrieval of the instance property with the specified name from the given instance.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbPropertyExpression ^ Property(System::Data::Common::CommandTrees::DbExpression ^ instance, System::String ^ propertyName);public static System.Data.Common.CommandTrees.DbPropertyExpression Property(this System.Data.Common.CommandTrees.DbExpression instance, string propertyName);static member Property : System.Data.Common.CommandTrees.DbExpression * string -> System.Data.Common.CommandTrees.DbPropertyExpression<Extension()>
Public Function Property (instance As DbExpression, propertyName As String) As DbPropertyExpressionParameters
- instance
- DbExpression
The instance from which to retrieve the property.
- propertyName
- String
The name of the property to retrieve.
Returns
A new DbPropertyExpression that represents the property retrieval.
Exceptions
propertyName is null or instance is null and the property is not static.
No property with the specified name is declared by the type of instance.
Applies to
.NET Framework 4.8.1 и други версии
| Продукт | Версии |
|---|---|
| .NET Framework | 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
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