CODEWITHSUNDEEP
c#asp.netweb-servicesdataview
Paul
Paul

Reputation: 429

ASP.NET Webservice

I may be going at this from the wrong direction. I'm fairly new to .net web services and was looking for a little help.

I have a geolocation webservice I got online and I wanted to bind the results to a listbox or a dataview but am unable too.

I've created a web proxy called net.webservicex.www that points to the webservice at.. http://www.webservicex.net/geoipservice.asmx

Here's my c# code.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace web_services
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            net.webservicex.www.GeoIPService myProxy = new net.webservicex.www.GeoIPService(); // proxy object
            string ipAddress, result;

            ipAddress = txtIpAddress.Text;

            result = myProxy.GetGeoIP("64.106.166.130");
            lstResults.DataSource = result;
            lstResults.DataMember = "IP";

        }
    }
}

The error I'm recieving is Error

Cannot implicitly convert type 'web_services.net.webservicex.www.GeoIP' to 'string' at line 24

If someone could give me some tips or idea's that would be great.

Thanks! Paul

Upvotes: 1

Views: 2151

Answers (6)

Marko
Marko

Reputation: 16

[WebMethod]
        public double ProcitajKursNaDan(DateTime datum, string valuta) {
            List<string> podaci = GetLines("valute.txt");

            double kurs = 0.0;

      
            for (int i = 0; i < podaci.Count; i++) {
                string[] linija = podaci[i].Split('|');
              
                string dat = linija[0];
                string val = linija[1];
                string vrednost = linija[2];

         
                dat = dat.Trim(); 
                val = val.Trim(); 
                vrednost = vrednost.Trim();

               
                DateTime datIzFajla = DateTime.ParseExact(dat, "d/M/yyyy", null);

                double kursIzFajla = Convert.ToDouble(vrednost);


                if (DateTime.Compare(datIzFajla, datum) == 0 && val == valuta)
                    kurs = kursIzFajla;
            }


            return kurs;
        }

        [WebMethod]
        public bool UpisiKursNaDan(DateTime datum, string valuta, double Kurs) {
            string date = datum.ToString("d/M/yyyy");
            string linijaZaUpis = date + " | " + valuta + " | " + Kurs.ToString();

            bool success = false;

            try
            {
                StreamWriter sw = new StreamWriter(Server.MapPath("podaci/valute.txt"), true);
                sw.WriteLine(linijaZaUpis);
                sw.Close();

                success = true;
            }
            catch {
                success = false;
            }
            return success;
        }

        [WebMethod]
        public List<string> ProcitajSveValute() {
            List<string> linije = GetLines("valute.txt");

            List<string> ValuteIzFajla = new List<string>();

            for (int i = 0; i < linije.Count; i++) {
                string linija = linije[i];
                string valuta = linija.Split('|')[1];
                valuta = valuta.Trim();
                ValuteIzFajla.Add(valuta);
            }

            List<string> ValuteKraj = ValuteIzFajla.Distinct().ToList();
            return ValuteKraj;
             //        try
    //        {
    //            if (!IsPostBack)
    //            {
    //                Service1 servis = new Service1();
    //                List<string> lista = servis.ProcitajSveValute().ToList<string>();
    //                for (int i = 0; i < lista.Count(); i++)
    //                {
    //                    DropDownList1.Items.Add(lista[i]);
    //                }

    //            }
    //        }
    //        catch (Exception ex)
    //        {
    //            Response.Write(ex.Message);
    //        }
    //    }

    //    protected void Button1_Click(object sender, EventArgs e)
    //    {
    //        try
    //        {
    //            Service1 servis = new Service1();
    //            DateTime datum = Calendar1.SelectedDate;
    //            string valuta = DropDownList1.SelectedItem.ToString();
    //            double kurs = Convert.ToDouble(TextBox1.Text);
    //            bool nesto = servis.UpisiKursNaDan(datum, valuta, kurs);
    //        }
    //        catch (Exception ex)
    //        {
    //            Response.Write(ex.Message);
    //        }
    //        TextBox1.Text = " ";
        }
    }
}
        //    try
        //    {
        //        if (!IsPostBack)
        //        {
        //            Service1 servis = new Service1();
        //            List<string> lista = servis.ProcitajSveValute().ToList<string>();
        //            for (int i = 0; i < lista.Count(); i++)
        //            {
        //                DropDownList1.Items.Add(lista[i]);
        //            }

        //        }
        //    }
        //    catch (Exception ex)
        //    {
        //        Response.Write(ex.Message);
        //    }
        //}

        //protected void Button1_Click(object sender, EventArgs e)
        //{
        //    try
        //    {
        //        Service1 servis = new Service1();
        //        DateTime datum = Calendar1.SelectedDate;
        //        string valuta = DropDownList1.SelectedItem.ToString();
        //        double kurs = servis.ProcitajKursNaDan(datum, valuta);
        //        Label1.Text = kurs.ToString();
        //        if (kurs == 0)
        //        {
        //            Label1.Text = "Ne postoji kursna lista za tu valutu na taj datum!";
        //        }
        //    }
        //    catch (Exception ex)
        //    {
        //        Response.Write(ex.Message);
        //    }
        //}

Upvotes: 0

Dave Gahan
Dave Gahan

Reputation: 299

I'm a very beginner with the C# and .net but here's how I solved this and I'm sure it'll help beginners like me:

The result object looks like this:

<GeoIP><ReturnCode>1</ReturnCode><IP>11.22.33.44</IP><ReturnCodeDetails>Success</ReturnCodeDetails><CountryName>Germany</CountryName><CountryCode>GER</CountryCode></GeoIP>

So obviously (yeah right...after spitting blood on this...lol), the result cannot be a simple STRING type. So, taking samples from the above solutions I've made it like that:

Default.aspx.cs:

        mygeoip.GeoIPService getIP = new mygeoip.GeoIPService();
        string myIP = IPTextBox.Text;
        GeoIPService.mygeoip.GeoIP resultList = new GeoIPService.mygeoip.GeoIP();

        resultList = getIP.GetGeoIP(myIP);
        sCountry.Text = resultList.CountryName;
        sCountryCode.Text = resultList.CountryCode;
        sIP.Text = resultList.IP;

Where - "mygeoip" is my WebService name (instead of "net.webservicex.www") and GeoIPService is my namespace.

Default.aspx:

        <asp:TextBox ID="IPTextBox" runat="server"></asp:TextBox>&nbsp;<asp:Button 
        ID="GetWhois" runat="server" Text="Get Whois" onclick="GetWhois_Click" />
<p><asp:Label ID="sCountry" runat="server" Text="Country: "></asp:Label></p>
<p><asp:Label ID="sCountryCode" runat="server" Text="Country: "></asp:Label></p>
<p><asp:Label ID="sIP" runat="server" Text="Country: "></asp:Label></p>

That's it - I hope I've helped beginners like me :)

Upvotes: 2

DavRob60
DavRob60

Reputation: 3557

You don't need to put it in the result string

lstResults.DataSource = myProxy.GetGeoIP("64.106.166.130");

Since the object returned by your webservice is not enumerable, You could trick it by putting it into an a enumerable Type:

List<web_services.net.webservicex.www.GeoIP> resultList = new List<web_services.net.webservicex.www.GeoIP>();
resultList.Add(myProxy.GetGeoIP("64.106.166.130"));
lstResults.DataSource = resultList;

Upvotes: 4

Darkwing
Darkwing

Reputation: 7595

    GeoIP result;

    ipAddress = "196.36.153.129";

    result = myProxy.GetGeoIP("64.106.166.130");

Upvotes: 1

Cᴏʀʏ
Cᴏʀʏ

Reputation: 107606

This line is at fault:

result = myProxy.GetGeoIP("64.106.166.130");

The object returned by that method is not a string, it's a web_services.net.webservicex.www.GeoIP.

You've declared result as a string, which doesn't match. Perhaps there is a ToString() method on the GeoIP class. If so, you could change your code to:

string ipAddress;
web_services.net.webservicex.www.GeoIP result;
// or maybe: object result;

ipAddress = txtIpAddress.Text;

result = myProxy.GetGeoIP("64.106.166.130");

And depending on what result looks like, you might just be able to make it your data source.

Upvotes: 2

Andy Rose
Andy Rose

Reputation: 17014

Looking at the wsdl for this web service it seems that the call to the GetGeoIP method returns an object, not a string.

This is why the compiler is complaining. You could either change the type of result to the object it is expecting or use the var keyword.

Upvotes: 2

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