c# - 此 SqlParameterCollection 的索引 6 无效，Count= 6

Question

地图类

public class cAdministratorMap : ClassMap<cAdministrator>
{

    public cAdministratorMap()
    {
        Table("Administrators");

        CompositeId<cAdministratorsKey>(c => c.Key)
            .KeyProperty(x => x.Client_id, "client_id")
            .KeyProperty(x => x.Start_date, kp => kp.ColumnName("start_date").Type(DbType.Date.ToString()))
            .KeyProperty(x => x.Adm_type, kp => kp.ColumnName("adm_type").Type(DbType.AnsiString.ToString()));

        Map(x => x.Person_id, "person_id").Not.Insert().Not.Update();
        Map(x => x.end_date).Column("end_date");
        Map(x => x.description).Column("description").Length(200);

        References(x => x.Person).Column("person_id");
        References(x => x.Cliente).Column("client_id");

    }
}

我收到以下错误

此 SqlParameterCollection 的索引 6 无效，Count= 6

请帮忙

Answer 1

Client Id被映射两次，一次在您的cAdministratorsKey映射中，一次在您的Cliente mapping.

删除Cliente映射并更改cAdministratorsKey映射以包含对Cliente属性的引用，如下所示：

  CompositeId<cAdministratorsKey>(c => c.Key)
        .KeyReference(x => x.Cliente, "client_id") // Changed to KeyReference
        .KeyProperty(x => x.Start_date, kp => kp.ColumnName("start_date").Type(DbType.Date.ToString()))
        .KeyProperty(x => x.Adm_type, kp => kp.ColumnName("adm_type").Type(DbType.AnsiString.ToString()));

  // References(x => x.Cliente).Column("client_id"); Removed as not needed

这应该删除重复并解决您的问题。