Question

我有这个引用，它一直向我显示错误：

方法`getDistinctRegister5'没有重载需要1个参数。

private int getDistinctRegister5(string module, string sij)
    {
        string dateFrom = TbDateFrom.Text.Trim();
        string dateTo = TbDateTo.Text.Trim();

        string strConnectionString = ConfigurationManager.ConnectionStrings["SilverInfocomm"].ConnectionString;
        SqlConnection myConnect = new SqlConnection(strConnectionString);
        string sql = "SELECT COUNT( DISTINCT NRIC) FROM REGISTER WHERE Module='" + module + "' AND SIJ='" + sij + "'";

        if (dateTo != "" && dateTo != "")
        {
            sql += "AND Date>= CONVERT(DATETIME,'" + dateFrom + "',103) AND Date <= CONVERT(DATETIME,'" + dateTo + "',103)";
        }

        else if (dateFrom != "")
        {
            sql += "AND DATE= CONVERT(DATETIME,'" + dateFrom + "',103)";
        }

        SqlCommand cmd = new SqlCommand(sql, myConnect);
        myConnect.Open();
        int numrows = (int)cmd.ExecuteScalar();
        myConnect.Close();
        return numrows;
    }


protected void GetSIJDetails()
    {
        SIJDetailsDT = new DataTable();
        SIJDetailsDT.Columns.Add("SIJ", typeof(string));
        SIJDetailsDT.Columns.Add("MODULE", typeof(string));
        SIJDetailsDT.Columns.Add("PLACES", typeof(string));
        SIJDetailsDT.Columns.Add("UNIQUE", typeof(string));
        SIJDetailsDT.Columns.Add("TOTALUNIQUE", typeof(string));
        SIJDetailsDT.Columns.Add("NON-UNIQUE", typeof(string));
        SIJDetailsDT.Columns.Add("TOTALNONUNIQUE", typeof(string));

        DataTable SIJTmp = new DataTable();
        string strConnectionString = ConfigurationManager.ConnectionStrings["SilverInfocomm"].ConnectionString;
        SqlConnection myConnect = new SqlConnection(strConnectionString);
        SqlCommand cmd = new SqlCommand("Select DISTINCT SIJ, Module FROM Register", myConnect);
        myConnect.Open();
        SqlDataReader reader = cmd.ExecuteReader();
        SIJTmp.Load(reader);
        reader.Close();
        myConnect.Close();

        foreach (DataRow dr in SIJTmp.Rows)
        {
            int PlacesSIJ = getPlacesSIJ(dr["SIJ"].ToString());
            int DistinctRegister4 = getDistinctRegister4(dr["SIJ"].ToString());
            int TotalRegister4 = getTotalRegister4(dr["SIJ"].ToString());
            int DistinctRegister5 = getDistinctRegister5(dr["Module"].ToString());
            int TotalRegister2 = getTotalRegister2(dr["Module"].ToString());
            SIJDetailsDT.Rows.Add(dr["SIJ"], dr["Module"], PlacesSIJ.ToString(), DistinctRegister5.ToString(), DistinctRegister4.ToString(), TotalRegister2.ToString(), TotalRegister4.ToString());
        }
    }

弹出错误的行是

int DistinctRegister5 = getDistinctRegister5(dr["Module"].ToString());

Answer 1

您的getDistinctRegister5方法有两个参数module和sij。

您需要在调用方法时提供这两种方法，

Answer 2

你在这里只用一个参数调用getDistinctRegister5函数。

  int DistinctRegister5 = getDistinctRegister5(dr["Module"].ToString());

但是在功能定义中有两个参数。所以你应该在调用时传递两个参数。

功能定义

 int getDistinctRegister5(string module, string sij)

方法'（方法）'没有重载需要1个参数

2 个答案: