RelationalPropertyExtensions.IsColumnNullable Method
Definition
Important
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Overloads
| IsColumnNullable(IProperty) |
Checks whether the column mapped to the given IProperty will be nullable when created in the database. This depends on the property itself and also how it is mapped. For example, derived non-nullable properties in a TPH type hierarchy will be mapped to nullable columns. As well as properties on optional types sharing the same table. |
| IsColumnNullable(IReadOnlyProperty) |
Checks whether the column mapped to the given IProperty will be nullable when created in the database. |
| IsColumnNullable(IProperty, StoreObjectIdentifier) |
Checks whether the column mapped to the given IProperty will be nullable when created in the database. This depends on the property itself and also how it is mapped. For example, derived non-nullable properties in a TPH type hierarchy will be mapped to nullable columns. As well as properties on optional types sharing the same table. |
| IsColumnNullable(IReadOnlyProperty, StoreObjectIdentifier) |
Checks whether the column mapped to the given property will be nullable when created in the database. |
IsColumnNullable(IProperty)
Checks whether the column mapped to the given IProperty will be nullable when created in the database.
This depends on the property itself and also how it is mapped. For example, derived non-nullable properties in a TPH type hierarchy will be mapped to nullable columns. As well as properties on optional types sharing the same table.
public static bool IsColumnNullable (this Microsoft.EntityFrameworkCore.Metadata.IProperty property);static member IsColumnNullable : Microsoft.EntityFrameworkCore.Metadata.IProperty -> bool<Extension()>
Public Function IsColumnNullable (property As IProperty) As BooleanParameters
Returns
true if the mapped column is nullable; false otherwise.
Applies to
IsColumnNullable(IReadOnlyProperty)
Checks whether the column mapped to the given IProperty will be nullable when created in the database.
public static bool IsColumnNullable (this Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty property);static member IsColumnNullable : Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty -> bool<Extension()>
Public Function IsColumnNullable (property As IReadOnlyProperty) As BooleanParameters
- property
- IReadOnlyProperty
The IReadOnlyProperty.
Returns
true if the mapped column is nullable; false otherwise.
Remarks
This depends on the property itself and also how it is mapped. For example, derived non-nullable properties in a TPH type hierarchy will be mapped to nullable columns. As well as properties on optional types sharing the same table.
Applies to
IsColumnNullable(IProperty, StoreObjectIdentifier)
Checks whether the column mapped to the given IProperty will be nullable when created in the database.
This depends on the property itself and also how it is mapped. For example, derived non-nullable properties in a TPH type hierarchy will be mapped to nullable columns. As well as properties on optional types sharing the same table.
public static bool IsColumnNullable (this Microsoft.EntityFrameworkCore.Metadata.IProperty property, in Microsoft.EntityFrameworkCore.Metadata.StoreObjectIdentifier storeObject);static member IsColumnNullable : Microsoft.EntityFrameworkCore.Metadata.IProperty * StoreObjectIdentifier -> bool<Extension()>
Public Function IsColumnNullable (property As IProperty, ByRef storeObject As StoreObjectIdentifier) As BooleanParameters
- storeObject
- StoreObjectIdentifier
The identifier of the table-like store object containing the column.
Returns
true if the mapped column is nullable; false otherwise.
Applies to
IsColumnNullable(IReadOnlyProperty, StoreObjectIdentifier)
Checks whether the column mapped to the given property will be nullable when created in the database.
public static bool IsColumnNullable (this Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty property, in Microsoft.EntityFrameworkCore.Metadata.StoreObjectIdentifier storeObject);static member IsColumnNullable : Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty * StoreObjectIdentifier -> bool<Extension()>
Public Function IsColumnNullable (property As IReadOnlyProperty, ByRef storeObject As StoreObjectIdentifier) As BooleanParameters
- property
- IReadOnlyProperty
The property.
- storeObject
- StoreObjectIdentifier
The identifier of the table-like store object containing the column.
Returns
true if the mapped column is nullable; false otherwise.
Remarks
This depends on the property itself and also how it is mapped. For example, derived non-nullable properties in a TPH type hierarchy will be mapped to nullable columns. As well as properties on optional types sharing the same table.
Applies to
Entity Framework