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.SqlUnaryExpressionabstract member IsNull : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
override this.IsNull : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpressionPublic Overridable Function IsNull (operand As SqlExpression) As SqlUnaryExpressionPublic Overridable Function IsNull (operand As SqlExpression) As SqlExpressionParameters
- operand
- SqlExpression
A SqlExpression to compare to null.
Returns
An expression representing IS NULL construct in a SQL tree.
Implements
Applies to
Collabora con noi su GitHub
L'origine di questo contenuto è disponibile in GitHub, in cui è anche possibile creare ed esaminare i problemi e le richieste pull. Per ulteriori informazioni, vedere la guida per i collaboratori.
