MigrationsSqlGenerator.CheckConstraint 方法
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
多載
CheckConstraint(AddCheckConstraintOperation, IModel, MigrationCommandListBuilder)
為 的檢查條件約束 AddCheckConstraintOperation 產生 SQL 片段。
protected virtual void CheckConstraint (Microsoft.EntityFrameworkCore.Migrations.Operations.AddCheckConstraintOperation operation, Microsoft.EntityFrameworkCore.Metadata.IModel model, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);protected virtual void CheckConstraint (Microsoft.EntityFrameworkCore.Migrations.Operations.AddCheckConstraintOperation operation, Microsoft.EntityFrameworkCore.Metadata.IModel? model, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);abstract member CheckConstraint : Microsoft.EntityFrameworkCore.Migrations.Operations.AddCheckConstraintOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
override this.CheckConstraint : Microsoft.EntityFrameworkCore.Migrations.Operations.AddCheckConstraintOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unitProtected Overridable Sub CheckConstraint (operation As AddCheckConstraintOperation, model As IModel, builder As MigrationCommandListBuilder)參數
- operation
- AddCheckConstraintOperation
作業。
- model
- IModel
目標模型，如果 null 作業不存在模型，則可能是 。
- builder
- MigrationCommandListBuilder
用來加入 SQL 片段的命令產生器。
適用於
CheckConstraint(CreateCheckConstraintOperation, IModel, MigrationCommandListBuilder)
為 的檢查條件約束 CreateCheckConstraintOperation 產生 SQL 片段。
protected virtual void CheckConstraint (Microsoft.EntityFrameworkCore.Migrations.Operations.CreateCheckConstraintOperation operation, Microsoft.EntityFrameworkCore.Metadata.IModel model, Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder builder);abstract member CheckConstraint : Microsoft.EntityFrameworkCore.Migrations.Operations.CreateCheckConstraintOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unit
override this.CheckConstraint : Microsoft.EntityFrameworkCore.Migrations.Operations.CreateCheckConstraintOperation * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Migrations.MigrationCommandListBuilder -> unitProtected Overridable Sub CheckConstraint (operation As CreateCheckConstraintOperation, model As IModel, builder As MigrationCommandListBuilder)參數
- operation
- CreateCheckConstraintOperation
作業。
- model
- IModel
目標模型，如果 null 作業不存在模型，則可能是 。
- builder
- MigrationCommandListBuilder
用來加入 SQL 片段的命令產生器。
