如何在带数据注释的EF核心迁移中将外键设置为非空？

public partial class AddNotNullConstraintToForeignKey : Migration
{
    protected override void Up(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.AlterColumn<int>(
            name: "ForeignKeyColumn",
            table: "YourTable",
            nullable: false, // 设置外键为非空
            oldNullable: true);

        migrationBuilder.Sql("UPDATE YourTable SET ForeignKeyColumn = 0 WHERE ForeignKeyColumn IS NULL");
    }

    protected override void Down(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.AlterColumn<int>(
            name: "ForeignKeyColumn",
            table: "YourTable",
            nullable: true, // 设置外键为可空
            oldNullable: false);
    }
}