SqlExpressionFactory.IsNull(SqlExpression) 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.
Creates a new SqlExpression which represent equality to null.
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression IsNull (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand);
public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression IsNull (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand);
abstract member IsNull : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression
override this.IsNull : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression
abstract member IsNull : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.IsNull : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
Public Overridable Function IsNull (operand As SqlExpression) As SqlUnaryExpression
Public Overridable Function IsNull (operand As SqlExpression) As SqlExpression
Parameters
- operand
- SqlExpression
A SqlExpression to compare to null.
Returns
An expression representing IS NULL construct in a SQL tree.
Implements
Applies to
Collaborer avec nous sur GitHub
La source de ce contenu se trouve sur GitHub, où vous pouvez également créer et examiner les problèmes et les demandes de tirage. Pour plus d’informations, consultez notre guide du contributeur.