RuntimeEntityType.IEntityType.FindKey 方法

定义

获取在给定属性上定义的主键或备用键。 null如果未为给定属性定义键,则返回 。

[System.Diagnostics.DebuggerStepThrough]
Microsoft.EntityFrameworkCore.Metadata.IKey? IEntityType.FindKey (System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty> properties);
[System.Diagnostics.DebuggerStepThrough]
Microsoft.EntityFrameworkCore.Metadata.IKey IEntityType.FindKey (System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty> properties);
[<System.Diagnostics.DebuggerStepThrough>]
abstract member Microsoft.EntityFrameworkCore.Metadata.IEntityType.FindKey : System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty> -> Microsoft.EntityFrameworkCore.Metadata.IKey
override this.Microsoft.EntityFrameworkCore.Metadata.IEntityType.FindKey : System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty> -> Microsoft.EntityFrameworkCore.Metadata.IKey
Function FindKey (properties As IReadOnlyList(Of IReadOnlyProperty)) As IKey Implements IEntityType.FindKey

参数

properties
IReadOnlyList<IReadOnlyProperty>

构成密钥的属性。

返回

键,如果未定义,则为 。null

实现

属性

适用于