ElementTypeBuilder.IsRequired(Boolean) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Configures whether elements of the collection must have a value or can be null
.
An element can only be configured as non-required if it is based on a CLR type that can be
assigned null
.
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.ElementTypeBuilder IsRequired (bool required = true);
abstract member IsRequired : bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.ElementTypeBuilder
override this.IsRequired : bool -> Microsoft.EntityFrameworkCore.Metadata.Builders.ElementTypeBuilder
Public Overridable Function IsRequired (Optional required As Boolean = true) As ElementTypeBuilder
Parameters
- required
- Boolean
A value indicating whether elements of the collection must not be null
.
Returns
The same builder instance so that multiple configuration calls can be chained.
Applies to
Visszajelzés
https://aka.ms/ContentUserFeedback.
Hamarosan elérhető: 2024-ben fokozatosan kivezetjük a GitHub-problémákat a tartalom visszajelzési mechanizmusaként, és lecseréljük egy új visszajelzési rendszerre. További információ:Visszajelzés küldése és megtekintése a következőhöz: