WCF host in Windows Form Application

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hiii
I am new to WCF and I have written a code in Console Application which is working perfectly.
Now I have try to convert it into Windows Form Application.

I have created a service like this

C#

[ServiceContract]
public interface IHelloService
{
    [OperationContract]
    void SayHello(string msg);
}

and define the function

C#

public partial class Form1 : IHelloService
   {
       public string SayHello(string msg)
       {
           richTextBox1.Text=msg;
           return "Service on " + Environment.MachineName + " rec. " + msg;
}
   }

And I created a class Form1 with simple richTextBox1

C#

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            RichTextBox richTextBox1=new RichTextBox;
        }
    }

and I am starting service from main program file

C#

static void Main(string[] args)
        {
            using(ServiceHost host = new ServiceHost(typeof(Form1)))
            {
            
                host.AddServiceEndpoint(typeof(IHelloService), new NetTcpBinding(), "net.tcp://localhost:9000/HelloWcfService");
                host.Open();
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                Application.Run(new Form1());
            }

        }

Now the problem is that WCF host receive data but not showing in richTextBox1
Thanks

Posted 18-Aug-11 10:14am

XeeShaN AbbAs

Updated 3-Oct-18 23:45pm

v2

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-08-18T11:05:00

If you managed to develop a self-hosting WCF functionality, nothing really changes if you want a service part be a System.Windows.Forms application. WCF would have no value if it was interlaced with certain types of UI and anything else not related to communication technology.

With you service contract it looks like you want to show the string supplied by a client in the RichTextBox which is on the service side.
Just re-implement your contract method.

For example, assuming you have a form:

C#

using System.Windows.Forms;

//...

public partial class MyForm : Form {
    RichTextBox MyRichTextBox = new RichTextBox();
    //...
}

Implement your service interface in this form. For example, add a separate file with another part of the partial declaration:

C#

public partial class MyForm : IHelloService {
    void IHelloService.SayHello(string msg) {
        MyRichTextBox.Text = msg;
        //or better: 
        //MyRichTextBox.Rtf = msg; //and pass formatted RTF text
    }
}

Pay attention: you don't have to repeat ": Form" and ": IHelloService" in the inheritance lists of both partial class declarations — it is not needed which is very convenient. Also, I made interface implementation non-public using explicit implementation syntax (where any access modifier is not allowed). This syntax is much better as nobody can call the method IHelloService.SayHello accidentally.

—SA

Member 2526560 · Answer 2 · 2018-10-03T23:45:00

This below works fine:

C#

public partial class Form1 : Form
    {
        [ServiceContract]
        public interface IHelloWorldService
        {
            [OperationContract]
            string SayHello(string name);
        }

        public class HelloWorldService : IHelloWorldService
        {
            public string SayHello(string name)
            {
                return string.Format("Hello, {0}", name);
            }
        }

        public Form1()
        {
            InitializeComponent();
        }

        private void Loading(object sender, EventArgs e)
        {
            Uri baseAddress = new Uri("http://localhost:8758/hello");

            // Create the ServiceHost.
            ServiceHost host = new ServiceHost(typeof(HelloWorldService), baseAddress);
            
			ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
			smb.HttpGetEnabled = true;
			smb.MetadataExporter.PolicyVersion = PolicyVersion.Policy15;
			host.Description.Behaviors.Add(smb);
			host.Open();
		
        }
    }

WCF host in Windows Form Application

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