Question

我从这两个日期获取数据，日期格式是自定义的，如dd / MM / yyyy ..两者都没有显示这两个日期之间的准确答案

Ther是我的代码：

  private void LoadDataGg()
    {
      LoadDataGridView.DataSource = Getdatlisttt();
    }
 private DataTable Getdatlisttt()
   {
      DataTable dt = new DataTable();
     string connstring = ConfigurationManager.ConnectionStrings["AppLogin"].ConnectionString;
     string cmdstring = "SELECT FROM ClientRecord WHERE DATE1 >='" + DTpickerfrom.Value.ToString("dd/MM/yyyy") + "'
     AND DATE1<='" + DTpickerTo.Value.ToString("dd/MM/yyyy") + "' ";
      using (OleDbConnection con11 = new OleDbConnection(connstring))
       {
           using (OleDbCommand cmd11 = new OleDbCommand(cmdstring, con11))
         {
             con11.Open();
             OleDbDataReader reader = cmd11.ExecuteReader();
             dt.Load(reader);
            con11.Close();
        }
    }

    return dt;
}

Answer 1

日期值不包含格式，但作为SQL中的字符串表达式，它们必须使用ISO序列：yyyy-mm-dd。因此：

 string cmdstring = "SELECT FROM ClientRecord WHERE DATE1 >= #" + DTpickerfrom.Value.ToString("yyyy'/'MM'/'dd") + "# AND DATE1 <= #" + DTpickerTo.Value.ToString("yyyy'/'MM'/'dd") + "#";

c＃从这两个日期获取数据IN ACCESS

1 个答案: