小编RAH*_*HUL的帖子

我想使用以下代码从网站下载文件:

WebClient webClient = new WebClient();
webClient.DownloadFile("http://www.nseindia.com/content/historical/EQUITIES/2011/MAR/cm07MAR2011bhav.csv.zip", @"c:\myfile.txt");

显示的例外是"禁止错误403"

这意味着找不到页面,但我可以使用java代码下载该文件,也可以直接从该网站下载.

如何使用C#代码下载？

char[] charArray = startno.ToCharArray();
//using this arry
//i want to cheque this 

int i=0;
count = 0;
while (chenum [i] != "0")
     {
         count++;
         i++;
     }
     string s = "0";
     string zero = "0";
     for (i = 1; i <= count; i++)
     {
         s = s + zero;
     }

你会帮我纠正这个代码吗...例如:(00001101)我需要添加这个没有1.因为我想将此值转换为int.if我转换为int否则将是(1101)+1否则将是(1102).在添加之后我想要答案(00001102).

public ArrayList ChequeACpayee(string Payee, DateTime Date)
{
    ArrayList arr = new ArrayList();
    try
    {
        con.Open();
        SqlCommand cmd = new SqlCommand("ViewChequeforAcPayee", con);
        cmd.CommandType = CommandType.StoredProcedure;
        SqlParameter p = new SqlParameter();
        p = cmd.Parameters.AddWithValue("@PayeeName", Payee);
        p = cmd.Parameters.AddWithValue("@Date", Date);
        SqlDataReader dr = cmd.ExecuteReader();
        while (dr.Read())
        {
            ChequeInfo infoCheque = new ChequeInfo();

            infoCheque.AcPayee = dr["AcPayee"].ToString();

            arr.Add(infoCheque);
        }

        dr.Close();
        con.Close();
    }
    catch (Exception e)
    {
    }
    return arr;
}
ArrayList ArrAcpayee = ChequeAcPayee.ChequeACpayee (DDLPayee.SelectedItem.ToString(), BDPSelectDate.SelectedDate);

如何从这个arraylist中获取单个值？该值必须转换为字符串.