Consume a Web Service in an Android application with C# MonoAnDroid application

Shirsendu Nandi

C#Android ApplicationConsume Web Servicec# monodroid applicationmonodroid application

13 Comments

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arman bay12y ago
where is WCF project Source ?
priyanka singh13y agoedited
i m working with mono android through web service.I want to search data from sql server database via webservice using monoandroid emulator.i'm getting error System.Net.Sockets.SocketException: Connection refused at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) [0x00000] in <filename unknown>:0 at System.Net.WebConnection.Connect (System.Net.HttpWebRequest request) [0x00000] in <filename unknown>:0 --- End of inner exception stack trace --- at System.Net.HttpWebRequest.EndGetRequestStream (IAsyncResult asyncResult) [0x00000] in <filename unknown>:0 at System.Net.HttpWebRequest.GetRequestStream () [0x00000] in <filename unknown>:0 at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke (System.String method_name, System.Object[] parameters) [0x00000] in <filename unknown>:0 }.Is connectivity coding doesnot work on emulator.Kindly suggest me something.
sreenivas karthika13y ago
Nice application, Thanks..!!
dinesh babu14y ago
Hi ,Guys, i m working with mono android through web service. I want to store data from monodroid application to sql server through web service. monodroid ==> Web Service ==> Sql server Actually i tried for asp.net with sql server via web service. its work fine for this appraoch. The data inserted into sql server. asp.net ==> Web Service ==> sql server. but when i tried this similar way for monodroid,the data not yet stored in sql server database. Here is my code for Web service: SqlConnection conn = new SqlConnection(@"Data Source=DINESH-PC\SQLEXPRESS;Initial Catalog=remotedb;Integrated Security=True"); SqlCommand com; public Service1 () { //Uncomment the following line if using designed components //InitializeComponent(); } [WebMethod] public string insert(string name) { com = new SqlCommand("insert into dinesh values('" + name + "')", conn); conn.Open(); com.ExecuteNonQuery(); conn.Close(); return "Hello World"; } } Here is my code for monodroid public class Activity1 : Activity { localhost.Service1 suresh = new localhost.Service1(); string dinesh; protected override void OnCreate(Bundle bundle) { base.OnCreate(bundle); // Set our view from the "main" layout resource SetContentView(Resource.Layout.Main); // Get our button from the layout resource, // and attach an event to it Button button = FindViewById<Button>(Resource.Id.MyButton); EditText e1=FindViewById<EditText>(Resource.Id.editText1); button.Click += delegate { dinesh = suresh.insert(e1.Text); }; } } } Help me,Is there anything i need to change in coding or i need to change any settings to access web service in monodroid?
baba baba14y ago
Hey, I'm trying with a simple hello world web services running on my locale IIS, I get error, therefore I would love to see one of your web methods within calculator service. thank you
baba baba14y ago
thnx man, can we get your web service code?
vijay kumar s14y ago
Nice one for beginners
felipe sosa gazga14y ago
no me aparece mi aplicacion en el emulador por que ?
Mahesh Chand15y ago
Good work! Nice to see more and more guys building Mono apps.
- Karthikeyan Anbarasan15y ago
  OK thanks!!!
- Shirsendu Nandi15y ago
  thxx mahesh for your inspiration.
Karthikeyan Anbarasan15y ago
Do this framework is licensed to use in development?
- Shirsendu Nandi15y ago
  No it is an opensource.You only need vs 2010 license premium or ultimate edition.This mono android will not run on vs 2010 express edition

Description:

In this application I will describe how to consume a web service in your MonoDroid application using VS 2010. (MonoDroid will not work in VS 2010 Express edition).

To install MonoDroid navigate to http://mono-android.net/Installation

Follow the instructions and download all the necessary files.

Figure 1.

In the Figure 1. I have created a new MonoDroid application named monoAndroidapplication.

Now Like Figure 2 go to Project -> Add Web Reference. Enter in the URL of your web service and click Add Reference I will consume a webservice (http://soatest.parasoft.com/calculator.wsdl) which will add 2 values and will display. In this webservice you can also perform division and multiplication.

Now In the Activity.cs file you have to write the code below.

using System;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;

namespace MonoAndroidApplicationListView
{
[Activity(Label = "MonoAndroidApplicationListView", MainLauncher = true)]
public class Activity1 : Activity
{
int count = 1;

protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);

// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);

// Get our button from the layout resource,
// and attach an event to it
// Create a new Button and set it as our view

//Button button = FindViewById<Button>(Resource.Id.MyButton);
Button button = new Button(this);
button.Text = "Consume!";
button.Click += button_Click;

SetContentView(button);

//button.Click += delegate { button.Text = string.Format("{0} clicks!", count++); };
}
private void button_Click(object sender, System.EventArgs e)
{
// Create our web service and use it to add 2 numbers
var ws = new Calculator();
var result = ws.add(25, 10);

// Show the result in a toast
Toast.MakeText(this, result.ToString(), ToastLength.Long).Show();
}

}
}

Now in the figure below you will see the web service marked in red.

Run the Code by pressing F5 and you will see the result.

Note: Web services take time to access. Consider running them in a background thread. So be patient.