MigrationsSqlGenerator.CheckConstraint 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
重载
CheckConstraint(AddCheckConstraintOperation, IModel, MigrationCommandListBuilder)
为 的检查约束AddCheckConstraintOperation生成 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)参数
- operation
- AddCheckConstraintOperation
操作。
- model
- IModel
如果不存在模型的操作，则 null 为 的目标模型。
- builder
- MigrationCommandListBuilder
用于添加 SQL 片段的命令生成器。
适用于
CheckConstraint(CreateCheckConstraintOperation, IModel, MigrationCommandListBuilder)
为 的检查约束CreateCheckConstraintOperation生成 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)参数
- operation
- CreateCheckConstraintOperation
操作。
- model
- IModel
如果不存在模型的操作，则 null 为 的目标模型。
- builder
- MigrationCommandListBuilder
用于添加 SQL 片段的命令生成器。
