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aspx thread: Web Services +WebServiceUtil Proxy's Help!!!
Message #1 by "Albert Davis" <albertdavis@h...> on Wed, 18 Apr 2001 13:01:40 -0400
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Has anyone have success developing a webservice in c# and invoking it via a
winform (either C#,VB7 - doesn't matter) using a Proxy created with the
WebServiceUtil to successfully return values?
I have created a web service in c# with VS.NET and just uncommented the
"HelloWorld()" [web method], then compiled and invoked it via a browser.
Everything has worked so far. Then I wanted to invoke the web method via a
winform in c# or VB7 (doesn't really matter) so I used MS's WebServiceUtil
and created a proxy. I then started up a new project and copied the code
generated by the WebServiceUtil and pasted it in the new C# library project
within a namespace (the tool didn't do this for me by default) and added the
appropriate references to the librarys the proxy used. I then compiled the
library. Then I started up a winform project and added reference to my
newly created C# Library Proxy Component. My winform just has a button.
When the button is clicked the only thing that happens (for testing
purposes) is I called the web method within a
MessageBox.Show(oWs.HelloWorld()); and nothing happens... On the web server
I see a request being made and on my machine I see the request being made
from my winform app as well, but nothing gets returned, it just locks up the
application... Then if I look at the task manager, it says that the winform
app is not responding... I've also tryed skipping the proxy bit all
together and try using a web reference instead, but I get the same result as
when using the Proxy... What gives?
Is there anything special that I should be doing? Has anyone had any luck
getting this to work?
----------------------------
Here is my web service code:
----------------------------
namespace WebService1
{
using System;
using System.Collections;
using System.Configuration;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Web;
using System.Web.Services;
/// <summary>
/// Summary description for WebService1.
/// </summary>
public class WebService1 : System.Web.Services.WebService
{
public WebService1()
{
//CODEGEN: This call is required by the ASP+ Web Services
Designer
InitializeComponent();
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
public override void Dispose()
{
}
//WEB SERVICE EXAMPLE
//The HelloWorld() example service returns the string Hello World
//To build, uncomment the following lines then save and build the
project
//To test, right-click the Web Service's .asmx file and select View
in Browser
//
[WebMethod]
public string HelloWorld()
{
return "Hello World";
}
}
}
-------------------------
Here is my C# proxy code:
-------------------------
namespace ClassLibrary1
{
using System;
using System.Xml.Serialization;
using System.Web.Services.Protocols;
using System.Web.Services;
public class WebService1 :
System.Web.Services.Protocols.SoapClientProtocol{
public WebService1() {
this.Url = "http://127.0.0.1/WebService1/WebService1.asmx";
}
[System.Web.Services.Protocols.SoapMethodAttribute
"http://tempuri.org/HelloWorld")]
public string HelloWorld() {
object[] results = this.Invoke("HelloWorld", new object[0]);
return (string)(results[0]);
}
public System.IAsyncResult BeginHelloWorld(System.AsyncCallback callback,
object asyncState){
return this.BeginInvoke("HelloWorld", new object[0], callback,
asyncState);
}
public string EndHelloWorld(System.IAsyncResult asyncResult){
object[] results = this.EndInvoke(asyncResult);
return (string)(results[0]);
}
}
}
--------------------------------
Here is my winform project code:
--------------------------------
namespace WindowsApplication1
{
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.WinForms;
using System.Data;
using ClassLibrary1;
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.WinForms.Form
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components;
private System.WinForms.Button button1;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
public override void Dispose()
{
base.Dispose();
components.Dispose();
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container ();
this.button1 = new System.WinForms.Button ();
//@this.TrayHeight = 0;
//@this.TrayLargeIcon = false;
//@this.TrayAutoArrange = true;
button1.Location = new System.Drawing.Point (40, 16);
button1.Size = new System.Drawing.Size (75, 23);
button1.TabIndex = 0;
button1.Text = "button1";
button1.Click += new System.EventHandler (this.button1_Click);
this.Text = "Form1";
this.AutoScaleBaseSize = new System.Drawing.Size (5, 13);
this.ClientSize = new System.Drawing.Size (144, 61);
this.Controls.Add (this.button1);
}
protected void button1_Click (object sender, System.EventArgs e){
WebService1 oWs = new WebService1();
MessageBox.Show(oWs.HelloWorld());
}
/// <summary>
/// The main entry point for the application.
/// </summary>
public static void Main(string[] args)
{
Application.Run(new Form1());
}
}
}
Thanks in advance for any help,
-- Al
Message #2 by "Rob Howard" <rhoward@m...> on Thu, 19 Apr 2001 07:39:27 -0700
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Hi Al,
I copied your code and instructions exactly -- with the exception that
the URI for my service is:
http://127.0.0.1/test/WebService/WebService1.asmx.
Mine worked as expected :(
Do you happen to have a non-default hosts file that maps 127.0.0.1 to a
different host name? Try using your host name, either localhost or the
name of your server instead of 127.0.0.1.
If that still doesn't work, give me a shout.
Thanks,
Rob
-----Original Message-----
From: Albert Davis [mailto:albertdavis@h...]
Sent: Wednesday, April 18, 2001 10:02 AM
To: ASP+
Subject: [aspx] Web Services +WebServiceUtil Proxy's Help!!!
Has anyone have success developing a webservice in c# and invoking it
via a
winform (either C#,VB7 - doesn't matter) using a Proxy created with the
WebServiceUtil to successfully return values?
I have created a web service in c# with VS.NET and just uncommented the
"HelloWorld()" [web method], then compiled and invoked it via a browser.
Everything has worked so far. Then I wanted to invoke the web method
via a
winform in c# or VB7 (doesn't really matter) so I used MS's
WebServiceUtil
and created a proxy. I then started up a new project and copied the
code
generated by the WebServiceUtil and pasted it in the new C# library
project
within a namespace (the tool didn't do this for me by default) and added
the
appropriate references to the librarys the proxy used. I then compiled
the
library. Then I started up a winform project and added reference to my
newly created C# Library Proxy Component. My winform just has a button.
When the button is clicked the only thing that happens (for testing
purposes) is I called the web method within a
MessageBox.Show(oWs.HelloWorld()); and nothing happens... On the web
server
I see a request being made and on my machine I see the request being
made
from my winform app as well, but nothing gets returned, it just locks up
the
application... Then if I look at the task manager, it says that the
winform
app is not responding... I've also tryed skipping the proxy bit all
together and try using a web reference instead, but I get the same
result as
when using the Proxy... What gives?
Is there anything special that I should be doing? Has anyone had any
luck
getting this to work?
----------------------------
Here is my web service code:
----------------------------
namespace WebService1
{
using System;
using System.Collections;
using System.Configuration;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Web;
using System.Web.Services;
/// <summary>
/// Summary description for WebService1.
/// </summary>
public class WebService1 : System.Web.Services.WebService
{
public WebService1()
{
//CODEGEN: This call is required by the ASP+ Web Services
Designer
InitializeComponent();
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
public override void Dispose()
{
}
//WEB SERVICE EXAMPLE
//The HelloWorld() example service returns the string Hello
World
//To build, uncomment the following lines then save and build
the
project
//To test, right-click the Web Service's .asmx file and select
View
in Browser
//
[WebMethod]
public string HelloWorld()
{
return "Hello World";
}
}
}
-------------------------
Here is my C# proxy code:
-------------------------
namespace ClassLibrary1
{
using System;
using System.Xml.Serialization;
using System.Web.Services.Protocols;
using System.Web.Services;
public class WebService1 :
System.Web.Services.Protocols.SoapClientProtocol{
public WebService1() {
this.Url =3D "http://127.0.0.1/WebService1/WebService1.asmx";
}
[System.Web.Services.Protocols.SoapMethodAttribute
"http://tempuri.org/HelloWorld")]
public string HelloWorld() {
object[] results =3D this.Invoke("HelloWorld", new object[0]);
return (string)(results[0]);
}
public System.IAsyncResult BeginHelloWorld(System.AsyncCallback
callback,
object asyncState){
return this.BeginInvoke("HelloWorld", new object[0],
callback,
asyncState);
}
public string EndHelloWorld(System.IAsyncResult asyncResult){
object[] results =3D this.EndInvoke(asyncResult);
return (string)(results[0]);
}
}
}
--------------------------------
Here is my winform project code:
--------------------------------
namespace WindowsApplication1
{
using System;=09
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.WinForms;
using System.Data;
using ClassLibrary1;
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.WinForms.Form
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components;
private System.WinForms.Button button1;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent
call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
public override void Dispose()
{
base.Dispose();
components.Dispose();
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components =3D new
System.ComponentModel.Container ();
this.button1 =3D new System.WinForms.Button ();
//@this.TrayHeight =3D 0;
//@this.TrayLargeIcon =3D false;
//@this.TrayAutoArrange =3D true;
button1.Location =3D new System.Drawing.Point (40,
16);
button1.Size =3D new System.Drawing.Size (75, 23);
button1.TabIndex =3D 0;
button1.Text =3D "button1";
button1.Click +=3D new System.EventHandler
(this.button1_Click);
this.Text =3D "Form1";
this.AutoScaleBaseSize =3D new System.Drawing.Size
(5, 13);
this.ClientSize =3D new System.Drawing.Size (144,
61);
this.Controls.Add (this.button1);
}
protected void button1_Click (object sender,
System.EventArgs e){
WebService1 oWs =3D new WebService1();
MessageBox.Show(oWs.HelloWorld());
}
/// <summary>
/// The main entry point for the application.
/// </summary>
public static void Main(string[] args)
{
Application.Run(new Form1());
}
}
}
Thanks in advance for any help,
-- Al
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