C# 无法将SqlGeography用作Dapper和ASP.NET核心的参数

我正在尝试使用Dapper 1.50.2和ASP.NET Core 2.1在SQL Server中插入一个“地理”数据类型

我在几个线程上读到它应该是这样的，但是在尝试插入数据类型时，我收到了一个异常

注意：我在实体中使用的是非.NET CORE数据类型

Microsoft.SqlServer.Types:14.0.1016.290

，因为我找不到与.NET核心兼容的良好地理数据类型

实体：

public class Address : Entity{
    /* .. */
    public SqlGeography SpatialLocation { get; set; }
    /* .. */
}

插入方法（标准）：

插入方法（专用）：

我也尝试过dapper的动态参数方法（从第一篇文章开始），但我不确定如何将它们与不同的参数一起应用

例外情况

The member spatial of type Microsoft.SqlServer.Types.SqlGeography cannot be 
used as a parameter value

更新

我已经用这段代码解决了这个问题。事实证明，正确使用语法很困难

public override Address Insert(Address entity){
    if (entity == null){
        throw new ArgumentNullException(nameof(entity));
    }

    var sql = $"INSERT INTO [dbo].[Address]"
              + "([CreationDate]"
              + ",[StartDate]"
              + ",[EndDate]"
              + ",[CreationUser]"
              + ",[CityId]"
              + ",[Street]"
              + ",[Street2]"
              + ",[SpatialLocation]"
              + ",[Flags])"
              + "VALUES"
              + "(@creationDate"
              + ",@startDate"
              + ",@endDate"
              + ",@creationUser"
              + ",@cityId"
              + ",@street"
              + ",@street2"
              + ",@spatial "
              + ",@flags); "
              + "SELECT SCOPE_IDENTITY()";

    string lat = entity.SpatialLocation.Lat.Value.ToString(CultureInfo.InvariantCulture);
    string longitude = entity.SpatialLocation.Long.Value.ToString(CultureInfo.InvariantCulture);
    entity.Id = DapperExtensionsProxy.ExecuteScalar<int>(sql,new{
                                                             creationDate = entity.CreationDate,
                                                             startDate = entity.StartDate,
                                                             endDate = entity.EndDate,
                                                             creationUser = entity.CreationUser,
                                                             cityId = entity.CityId,
                                                             street = entity.Street,
                                                             street2 = entity.Street2,
                                                             flags = entity.Flags,
                                                             spatial = $"POINT({lat} {longitude} 4326)"
                                                         });
    return entity;
}

公共覆盖地址插入（地址实体）{
if（实体==null）{
抛出新ArgumentNullException（nameof（entity））；
}
var sql=$“插入[dbo].[Address]”
+“（[创作日期]”
+“，[起始日期]”
+“，[EndDate]”
+“，[CreationUser]”
+“，[CityId]”
+“，[街]”
+“，[Street2]”
+“，[空间分配]”
+“，[Flags]）”
+“价值观”
+“（@creationDate”
+“，@startDate”
+“，@endDate”
+“，@creationUser”
+“，@cityId”
+“，@街”
+“，@street2”
+“，@spatial”
+“，@flags）；”
+“选择范围_标识（）”；
string lat=entity.spaceAllocation.lat.Value.ToString（CultureInfo.InvariantCulture）；
字符串经度=entity.SpatialAllocation.Long.Value.ToString（CultureInfo.InvariantCulture）；
entity.Id=DapperExtensionsProxy.ExecuteScalar（sql，新{
creationDate=实体。creationDate，
startDate=entity.startDate，
endDate=entity.endDate，
creationUser=entity.creationUser，
cityId=entity.cityId，
街道=实体。街道，
street2=实体。street2，
标志=实体。标志，
空间=$“点（{lat}{longitude}4326）”
});
返回实体；
}

The member spatial of type Microsoft.SqlServer.Types.SqlGeography cannot be 
used as a parameter value

public override Address Insert(Address entity){
    if (entity == null){
        throw new ArgumentNullException(nameof(entity));
    }

    var sql = $"INSERT INTO [dbo].[Address]"
              + "([CreationDate]"
              + ",[StartDate]"
              + ",[EndDate]"
              + ",[CreationUser]"
              + ",[CityId]"
              + ",[Street]"
              + ",[Street2]"
              + ",[SpatialLocation]"
              + ",[Flags])"
              + "VALUES"
              + "(@creationDate"
              + ",@startDate"
              + ",@endDate"
              + ",@creationUser"
              + ",@cityId"
              + ",@street"
              + ",@street2"
              + ",@spatial "
              + ",@flags); "
              + "SELECT SCOPE_IDENTITY()";

    string lat = entity.SpatialLocation.Lat.Value.ToString(CultureInfo.InvariantCulture);
    string longitude = entity.SpatialLocation.Long.Value.ToString(CultureInfo.InvariantCulture);
    entity.Id = DapperExtensionsProxy.ExecuteScalar<int>(sql,new{
                                                             creationDate = entity.CreationDate,
                                                             startDate = entity.StartDate,
                                                             endDate = entity.EndDate,
                                                             creationUser = entity.CreationUser,
                                                             cityId = entity.CityId,
                                                             street = entity.Street,
                                                             street2 = entity.Street2,
                                                             flags = entity.Flags,
                                                             spatial = $"POINT({lat} {longitude} 4326)"
                                                         });
    return entity;
}