Question

I want to select 1st 5 character and assign in stringarray, i tried the following code, but it showing me error. I want to select first 5 character of each row and assign to str. Suggest me some idea plz.

public string[] str;
OleDbDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
    str = dr[0].GetString(4).tostring();
}

Answer 1

just make use of SubString function that will do that task for you

full code

List<string> strlst = new List<string>();
OleDbDataReader dr = cmd.ExecuteReader();

while (dr.Read())
{
    strlst.Add( Convert.ToString(dr[0]).Substring(0, 5)) ;
}
string[] strarray = strlst.ToArray();