How to send unicode character sms into mobile using asp.net c# - asp.net

Question

SenditemsTableAdapter sen = new SenditemsTableAdapter();
RegistrationTableAdapter reg = new RegistrationTableAdapter();
SendSMS sendsms = new SendSMS();
Here using tableAdapter
DS.RegistrationDataTable rtable = reg.GetDataByUsername(Session["username"].ToString());
if (rtable.Rows.Count > 0)
{
DS.RegistrationRow rrow = (DS.RegistrationRow)rtable.Rows[0];
int smscount = Convert.ToInt32(sen.Sumcredit(Session["username"].ToString()));
string username = rrow.Username;
// int smscount=0;
string MainString2 = txtmobileno.Text;
string[] Split2 = MainString2.Split(new Char[] { ',' });
string sendid = rrow.Senderid;
int CreditLmt = rrow.Creditlimit;
if (smscount <= CreditLmt)
{
if (rrow.Validitydate >= Convert.ToDateTime(DateTime.Now.ToString()))
{
for (int i = 0; i < Split2.Length; i++)
{
int credit = txtmessage.Text.Length / 160;
credit++;
DateTime date = DateTime.Now;
SqlConnection connection2 = new SqlConnection(con);
connection2.Open();
SqlCommand cmd1 = null;
string str = " insert into [Senditems] values('" + username + "','" + sendid + "', '" + Split2[i] + "',N'" + txtmessage.Text + "','Request.Url.AbsolutePath',' Request.UserHostAddress','Request.Browser.Platform + Request.Browser.Browser', '" + credit + "','" + date + "')";
cmd1 = new SqlCommand(str, connection2);
cmd1.ExecuteNonQuery();
string message = Convert.ToString(SqlHelper.ExecuteScalar(con, CommandType.Text, "SELECT message FROM senditems WHERE id = (SELECT MAX(id) FROM senditems)"));
sendsms.send(message, Split2[i], sendid);
connection2.Close();
}
ScriptManager.RegisterStartupScript(this, this.GetType(), "", "<script>alert('Your message send successfully');</script>", false);
reset();
}
else
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "", "<script>alert('Cant send sms because your validity is expired');</script>", false);
}
}
else
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "", "<script>alert('Cant send sms because you dont have credit');</script>", false);
}
}
In the button click events i have using " sendsms.send(txtmobileno.Text, Split2[i], sendid);" this method for send sms to mobile.
strUrl = "http://onlinesms.in/api/sendValidSMSdataUrl.php?login=" + user + "&pword=" + pass +
"&msg=" + HttpUtility.UrlEncode(Message) +
"&senderid=" + sendId +
"&mobnum=" + mobNum;
WebRequest request = HttpWebRequest.Create(strUrl);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream s = (Stream)response.GetResponseStream();
StreamReader readStream = new StreamReader(s);
string dataString = readStream.ReadToEnd();
response.Close();
s.Close();
readStream.Close();
And using this url to send sms.I have insert message into table is properly and i can get message to mobile ok but getting message ???????????? like this .
I want get sms properly pls any bady help.

Answer 1

I think it all depends of how the website API is converting back your URL string. In my opinion, I think it is safer to use the Uri.EscapeDataString() function instead of the HttpUtility.UrlEncode() because in a space you get the %20 instead of the + sign which may screw up your message.