Question

我正在尝试将查询作为DataSource传递给我的水晶报告。但是，不是显示过滤数据的报告，而是显示关联表中的所有数据。

这就是我正在做的传递数据

访问器

class cStockIssuanceSlipDetails
{
    public string itemCode { get; set; }
    public string itemDescription { get; set; }
    public double unitcost { get; set; }
    public int quantity { get; set; }
    public double amount { get; set; }

}

过滤

public DataSet Products_info(int slip_no)
    {
        string queryProducts = "SELECT p.ItemCode,p.itemDescription,p.SaleCost,slip.Quantity,slip.Amount FROM tblstockissuanceslip slip " +
        "INNER JOIN tblprowareinventory pi ON slip.inventoryID_FK = pi.inventoryID " +
        "INNER JOIN tblprowareproducts p ON pi.ItemID_FK = p.ItemID "+
        "WHERE slip.SIP_NO = ?slipno";
        using (MySqlCommand cmd = new MySqlCommand(queryProducts,con.connection))
        {
            cmd.Parameters.AddWithValue("?slipno", slip_no);
            DataSet ds = new DataSet();
            using (MySqlDataAdapter mda = new MySqlDataAdapter(cmd))
            {
                mda.Fill(ds);
                return ds;
            }
        }
    }

设置DataSource

List<cStockIssuanceSlipDetails> _List = new List<cStockIssuanceSlipDetails>();
        DataSet ds = Data.Products_info(5);
        foreach (DataRow dr in ds.Tables[0].Rows)
        {
            _List.Add(new cStockIssuanceSlipDetails
            {
                itemCode = dr["itemCode"].ToString(),
                itemDescription = dr["itemDescription"].ToString(),
                unitcost = Convert.ToDouble(dr["SaleCost"]),
                quantity = Convert.ToInt32(dr["Quantity"]),
                amount = Convert.ToDouble(dr["Amount"]),
            });

        }
        rStockIssuanceSlip1.SetDataSource(_List);

Answer 1

你能尝试这样的事吗？

class cStockIssuanceSlipDetails
{
    public string itemCode { get; set; }
    public string itemDescription { get; set; }
    public double unitcost { get; set; }
    public int quantity { get; set; }
    public double amount { get; set; }

--Create a variable to store the value you want to pass in your sql statement
--use this variable to store the value before concatenating in to your sql statement
    public string topass { get; set; } 

}
Filter

public DataSet Products_info(int slip_no)
    {
        string queryProducts = "SELECT p.ItemCode,p.itemDescription,p.SaleCost,slip.Quantity,slip.Amount FROM tblstockissuanceslip slip " +
        "INNER JOIN tblprowareinventory pi ON slip.inventoryID_FK = pi.inventoryID " +
        "INNER JOIN tblprowareproducts p ON pi.ItemID_FK = p.ItemID "+
        "WHERE slip.SIP_NO = ""+topass+";
        using (MySqlCommand cmd = new MySqlCommand(queryProducts,con.connection))
        {
            --remove line below
            cmd.Parameters.AddWithValue("?slipno", slip_no);
            --remove line above

            DataSet ds = new DataSet();
            using (MySqlDataAdapter mda = new MySqlDataAdapter(cmd))
            {
                mda.Fill(ds);
                return ds;
            }
        }
    }

实际发生的是，参数无法检索您尝试传递的值。只是一个提示，尝试学习如何在SQL中使用存储过程和函数，它们将使您的生活更加和平。

使用过滤数据c＃提供水晶报告

1 个答案: