使用Dapper.TVP TableValueParameter和其他参数

Question

我有一个过程,它接受一个表值参数,以及其他:

CREATE PROCEDURE [dbo].[Update_Records]
    @currentYear INT,
    @country INT,
    @records Record_Table_Type READONLY
AS

我试图用Dapper.TVP来称呼它.

这是我到目前为止的代码:

        var recordsParameter = new List<SqlDataRecord>();

        // This metadata matches 'Record_Table_Type' in the Database
        var recordsMetaData = new[]
        {
            new SqlMetaData("OriginalValue", SqlDbType.Decimal, 19, 4),
            new SqlMetaData("NewValue", SqlDbType.Decimal, 19, 4),
            new SqlMetaData("NewPercent", SqlDbType.Decimal, 7, 2),
        };

        foreach (var r in records)
        {
            var record = new SqlDataRecord(recordsMetaData);
            record.SetDecimal(0, r.OriginalValue);
            record.SetDecimal(1, r.NewValue);
            record.SetDecimal(2, r.NewPercent);
            recordsParameter.Add(record);
        }

        var spParams = new DynamicParameters(new
        {
            currentYear = filter.currentYear,
            country = filter.country,
        });

        var recordsParam = new TableValueParameter("@records", "Record_Table_Type", recordsParameter);

        using (var connection = ConnectionFactory.GetConnection())
        {
            connection.Execute("Update_Records", ???, commandType: CommandType.StoredProcedure);
        }

我的问题是如何将这两组参数传递给Dapper调用中的过程Execute()？

我试过了:

var spParams = new DynamicParameters(new
{
    currentYear = filter.currentYear,
    country = filter.country,
    records = new TableValueParameter("@records", "Record_Table_Type", recordsParameter);
});

connection.Execute("Update_Records", spParams, commandType: CommandType.StoredProcedure);

和

connection.Execute("Update_Records", new Object[] { spParams, recordsParam }, commandType: CommandType.StoredProcedure);

两者都调用该过程,但传递一个空表参数(SELECT COUNT(*) FROM @records返回0)

我似乎无法找到Dapper.TVP的任何实际文档或来源,所以整个事情非常令人困惑,第二个参数.Execute()只是一个,dynamic所以再次没有告诉我我能做什么,不能传递给它.

有任何想法吗？

Answer 1

我在移动设备上并且可能误解了这个问题,但这应该只是:

DataTable records = ...
connection.Execute("Update_Records",
    new {
        currentYear = filter.currentYear,
        country = filter.country,
        records
    },
    commandType: CommandType.StoredProcedure
);

Answer 2

基于Mark Gravell的回答:Dapper是否支持SQL 2008表值参数？

我改变了我的代码,不再使用Dapper.TVP而只是使用了一个DataTable代码现在:

        var recordsTable = new DataTable();
        recordsTable.Columns.Add("NewValue", typeof(Decimal));
        foreach (var netRevenue in records)
        {
            var row = recordsTable.NewRow();
            row[0] = netRevenue.NewValue;
            recordsTable.Rows.Add(row);
        }
        recordsTable.EndLoadData();

        var spParams = new DynamicParameters(new
        {
            currentYear = filter.currentYear,
            country = filter.country,
            records = recordsTable.AsTableValuedParameter("Record_Table_Type")
        });

        using (var connection = ConnectionFactory.GetConnection())
        {
            connection.Execute("Update_Records", spParams, commandType: CommandType.StoredProcedure);
        }

这很有效.