Question

在我的应用程序中执行SQL Server存储过程时遇到问题。我之前没有遇到过这个问题。

我的数据类是：

public static string conStr
{
    get { return ConfigurationManager.ConnectionStrings["conn"].ConnectionString; }
}

public static string Provider
{
    get { return ConfigurationManager.ConnectionStrings["conn"].ProviderName; } //Proveedor de DB
}

//DB PROVIDER FACTORY: Objetos de Conexion
public static System.Data.Common.DbProviderFactory dpf
{
    get { return DbProviderFactories.GetFactory(Provider); }
}

private static int ejecutaNonQuery(string StoredProcedure, List<DbParameter> parametros)
{//execute nonquery retorna el numero de columnas afectadas en una dB 
    int Id = 0; //variable para saber cuantos elementos se modificaron despues del ejecutenonquery

    try
    {
        using (DbConnection con = dpf.CreateConnection()) //al usar using la conexion se cerrara automaticamente
        {
            con.ConnectionString = conStr;
            using (DbCommand cmd = dpf.CreateCommand())
            {
                cmd.Connection = con;
                cmd.CommandText = StoredProcedure;
                cmd.CommandType = CommandType.StoredProcedure;

                foreach (DbParameter param in parametros)
                    cmd.Parameters.Add(param);

                con.Open();
                Id = cmd.ExecuteNonQuery();
                cmd.Parameters.Clear(); 
            }
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }
    finally
    { }

    return Id;
}

这是执行：

public int Lotes_Crear_Consolidado(string cliCodigo, string cajCodigo, int cajNumero, 
                                   int cajConNumero, string cajConCodigo,
                                   string id1Desde, string id1Hasta, 
                                   string id2Desde, string id2Hasta,
                                   string id3Desde, string id3Hasta,
                                   string id4Desde, string id4Hasta,
                                   string id5Desde, string id5Hasta,
                                   string altaPor, string lotEstado, 
                                   DateTime fecEmiLot, DateTime fecCadLot)
{
    List<DbParameter> paramLotesConsol = new List<DbParameter>();

    DbParameter param1 = dpf.CreateParameter();
    param1.DbType = DbType.String;
    param1.Value = cliCodigo;
    param1.ParameterName = "CLIENTE_CODIGO";
    paramLotesConsol.Add(param1);

    DbParameter param2 = dpf.CreateParameter();
    param2.DbType = DbType.String;
    param2.Value = cajCodigo;
    param2.ParameterName = "CAJA_CODIGO";
    paramLotesConsol.Add(param2);

    DbParameter param3 = dpf.CreateParameter();
    param3.DbType = DbType.Int16;
    param3.Value = cajNumero;
    param3.ParameterName = "CAJA_NUMERO";
    paramLotesConsol.Add(param3);

    DbParameter param4 = dpf.CreateParameter();
    param4.DbType = DbType.Int16;
    param4.Value = cajConNumero;
    param4.ParameterName = "CAJA_CONTENIDO_NUMERO";
    paramLotesConsol.Add(param4);

    DbParameter param5 = dpf.CreateParameter();
    param5.DbType = DbType.String;
    param5.Value = cajConCodigo;
    param5.ParameterName = "CAJA_CONTENIDO_CODIGO";
    paramLotesConsol.Add(param5);

    DbParameter param6 = dpf.CreateParameter();
    param6.DbType = DbType.String;
    param6.Value = id1Desde;
    param6.ParameterName = "ID1_DESDE";
    paramLotesConsol.Add(param6);

    DbParameter param7 = dpf.CreateParameter();
    param7.DbType = DbType.String;
    param7.Value = id1Hasta;
    param7.ParameterName = "ID1_HASTA";
    paramLotesConsol.Add(param7);

    DbParameter param8 = dpf.CreateParameter();
    param8.DbType = DbType.String;
    param8.Value = id2Desde;
    param8.ParameterName = "ID2_DESDE";
    paramLotesConsol.Add(param8);

    DbParameter param9 = dpf.CreateParameter();
    param9.DbType = DbType.String;
    param9.Value = id2Hasta;
    param9.ParameterName = "ID2_HASTA";
    paramLotesConsol.Add(param9);

    ........

    DbParameter param26 = dpf.CreateParameter();
    param26.DbType = DbType.String;
    param26.Value = altaPor;
    param26.ParameterName = "ALTA_POR";
    paramLotesConsol.Add(param26);

    DbParameter param27 = dpf.CreateParameter();
    param27.DbType = DbType.String;
    param27.Value = lotEstado;
    param27.ParameterName = "ESTADO";
    paramLotesConsol.Add(param27);

    DbParameter param28 = dpf.CreateParameter();
    param28.DbType = DbType.Date;
    param28.Value = fecEmiLot;
    param28.ParameterName = "FECHA_EMISION_LOTE";
    paramLotesConsol.Add(param28);

    DbParameter param29 = dpf.CreateParameter();
    param29.DbType = DbType.Date;
    param29.Value = fecCadLot;
    param29.ParameterName = "FECHA_CADUCID_LOTE";
    paramLotesConsol.Add(param29);

    return ejecutaNonQuery("LOTES_CREAR_CONSOLIDADO", paramLotesConsol);
}

然后我称之为：

Caja_Contenido_BL loteBL = new Caja_Contenido_BL();

我必须将数据从gridview插入到我的数据库中，因此我在每一行上运行用于插入数据的存储过程。

我得到的错误是：

SqlParameter已包含在另一个SqlParameterCollection
中

代码：

protected void Lotes_Crear_Consolidado(object sender, EventArgs e)
{
    string altaPor = User.Identity.Name.ToString().ToUpper();

    foreach (GridViewRow grdCajUpd_Row in this.gvwLotConsol_Plant.Rows)
    {
        string cliCod = Convert.ToString(grdCajUpd_Row.Cells[0].Text);
        string cajCod = Convert.ToString(grdCajUpd_Row.Cells[1].Text);
        int cajNum = Convert.ToInt16(grdCajUpd_Row.Cells[2].Text);
        int cajConNum = Convert.ToInt16(grdCajUpd_Row.Cells[3].Text);
        string cajConCod = Convert.ToString(grdCajUpd_Row.Cells[4].Text);

        string id1Desde = Convert.ToString(grdCajUpd_Row.Cells[5].Text);
        string id1Hasta = Convert.ToString(grdCajUpd_Row.Cells[6].Text);
        string id2Desde = Convert.ToString(grdCajUpd_Row.Cells[7].Text);
        string id2Hasta = Convert.ToString(grdCajUpd_Row.Cells[8].Text);
        string id3Desde = Convert.ToString(grdCajUpd_Row.Cells[9].Text);
        string id3Hasta = Convert.ToString(grdCajUpd_Row.Cells[10].Text);
        string id4Desde = Convert.ToString(grdCajUpd_Row.Cells[11].Text);
        string id4Hasta = Convert.ToString(grdCajUpd_Row.Cells[12].Text);
        string id5Desde = Convert.ToString(grdCajUpd_Row.Cells[13].Text);
        string id5Hasta = Convert.ToString(grdCajUpd_Row.Cells[14].Text);
        string id6Desde = Convert.ToString(grdCajUpd_Row.Cells[15].Text);
        string id6Hasta = Convert.ToString(grdCajUpd_Row.Cells[16].Text);
        string id7Desde = Convert.ToString(grdCajUpd_Row.Cells[17].Text);
        string id7Hasta = Convert.ToString(grdCajUpd_Row.Cells[18].Text);
        string id8Desde = Convert.ToString(grdCajUpd_Row.Cells[19].Text);
        string id8Hasta = Convert.ToString(grdCajUpd_Row.Cells[20].Text);
        string id9Desde = Convert.ToString(grdCajUpd_Row.Cells[21].Text);
        string id9Hasta = Convert.ToString(grdCajUpd_Row.Cells[22].Text);
        string id10Desde = Convert.ToString(grdCajUpd_Row.Cells[23].Text);
        string id10Hasta = Convert.ToString(grdCajUpd_Row.Cells[24].Text);
        string estado = Convert.ToString(grdCajUpd_Row.Cells[25].Text);
        DateTime fecEmiLot = Convert.ToDateTime(grdCajUpd_Row.Cells[26].Text);
        DateTime fecCadLot = Convert.ToDateTime(grdCajUpd_Row.Cells[27].Text);

        loteBL.Lotes_Crear_Consolidado(cliCod, cajCod, cajNum, cajConNum, cajConCod,
            id1Desde, id1Hasta, id2Desde, id2Hasta, id3Desde, id3Hasta, id4Desde, id4Hasta,
            id5Desde, id5Hasta, id6Desde, id6Hasta, id7Desde, id7Hasta, id8Desde, id8Hasta,
            id9Desde, id9Hasta, id10Desde, id10Hasta, altaPor, estado, fecEmiLot, fecCadLot);

    }
    Page.ClientScript.RegisterStartupScript(this.GetType(), "AlertScript", "alert('Lote(s) Creado(s)!');", true);
}

我使用cmd.Parameters.Clear()清除命令参数。

在SQL Server中，我在SQL参数中使用与其他存储过程相同的名称。我不知道问题可能是什么。

请，如果有人能帮助我，我将感激不尽

祝你好运

Answer 1

您只能使用一次SqlParameter。既然您已将SqlParameters传递给方法，我认为它们也会在其他地方使用？

如果您希望保留通话签名并希望快速修复，请尝试此操作。而不是

foreach (DbParameter param in parametros)
    cmd.Parameters.Add(param);

尝试

foreach (ICloneable param in parametros)
    cmd.Parameters.Add(param.Clone() as SqlParameter);

Answer 2

谢谢大家的帮助。这是我的错，我处理了近30个参数，其中一个是重复的。遗憾...

有谁知道如何删除这篇文章？

再次感谢！

Answer 3

如果我没记错，您需要编辑帖子才能将其删除。为了避免这种问题，我建议创建一个这样的辅助函数：

private void AddParameter(DbProviderFactory dpf, List<DbParameter> params, DbType type, object value, string name)
{
    DbParameter param = dpf.CreateParameter();
    param.DbType = type;
    param.Value = value;
    param.ParameterName = name;
    params.Add(param);
}

然后这样称呼：

 AddParameter(dpf, paramLotesConsol, DbType.String, cliCodigo, "CLIENTE_CODIGO");
 AddParameter(dpf, paramLotesConsol, DbType.String, cajCodigo, "CAJA_CODIGO");
// etc.

ASP，SqlParameter已经被另一个SqlParameterCollection包含

3 个答案: