I've been days with that. I'm trying to work with web services sending and
returning objects, and the web service must store some objects.
- My first try (the most obvious in my opinion) was to use a class contained
in a extern dll so the web service and the application can use it and send
or return via web services: public customObject myWebMethod(customObject
obj); . I saw that web services can't deal with this cause the WS creates
another class with the same name, but it's not possible to cast from one to
another.
- Now I try to pass simple fields (strings for instance) and create the
objects in the web service and in the application. In the web service I have
a Hashtable where I want the objects to be stored. Is it possible? because I
get exceptions and I don't know why. The exception text is (it's translated
as my VS isn't in english):
------------------
'System.Web.Services.Protocols.SoapException' occurred in
system.web.services.dll
Additional information: System.Web.Services.Protocols.SoapException: The
server didn't recognize the value in the header HTTP SOAPAction:
http://tempuri.org/setUser.
at
System.Web.Services.Protocols.Soap11ServerProtocol Helper.RouteRequest()
at System.Web.Services.Protocols.SoapServerProtocol.I nitialize()
at System.Web.Services.Protocols.ServerProtocolFactor y.Create(Type type,
HttpContext context, HttpRequest request, HttpResponse response, Boolean&
abortProcessing)
---------------------
I have a basic test that doesn't work, but I put you here the code so you
can see if it's something wrong.
-------- The DLL has this simple class:
public class User
{
private string name;
private string phone;
public string Name
{
set { name = Name;}
get { return name;}
}
// the same with Phone
public User() {}
public User(string n, string p)
{
name = n;
phone = p;
}
}
---------- The Web Service has this:
public class Service1:System.Web.Services.WebService
{
private System.Collections.Hashtable users; //here I want to store
the objects
public Service1()
{
InitializaComponent();
users = new Hashtable();
}
// then the region generated by VS
// and here the web mehtods
[WebMethod]
public void setUser(string n, string p)
{
User u = new User(n,p);
users.Add(n,u); //add the new user to the HastTable with the name
as key
}
[WebMethod]
public string getPhone(string name)
{
User u = (User)users[name]; //get the object with the key
'name'
return u.Phone;
}
}
--------- And finally the application, that is a simple form that has a
couple of textboxes to insert name and phone, a listbox to show the results
and a couple of buttons to call the web methods. I put the important code
public class Form1: System.Windows.Forms.Form
{
// the visual components
private webServ.Service1 serv; //the web service
private User user; //a custom object from my class.
[...]
public Form1()
{
InitializeComponent();
serv = new webServ.Service1(); // call the web service
constructor
}
[...]
private void button1_Click(...)
{
// call the webmethod sendint the fields so the object is created in
the web service
serv.setUser(textBox1.Text, textBox2.Text);
}
private void button2_Click(...)
{
// call the second webmethod to get the Phone associated to the name
showed in the textBox
string phone = serv.getPhone(this.textBox1.Text);
User u = new User(textBox1.Text, phone); //create an object
//finally show the data in the listbox[...]
}
}
When the application crashes, it shows in the Reference.cs that:
public void setUser(string name, string phone){
this.Invoke("setUser", new object[] { name, phone});
-------------------------------
Please, I really need your help!
Regards,
Diego F.
