Hi Jonathan,
As for returning multiple values in webservce webmethod, I think you can
consider the following two approaches:
1. You can define a custom class type which contains multiple member field
to hold the values you want to return. And in your webservice webmethod,
you return the custom class object instead of individual primitive types.
e.g.
[WebMethod]
public MyType helloWorld()
{
MyType mt = new MyType();
mt.field1 = xx;
mt.field2 = yy;
return mt;
}
http://www.crazysalsadancer.com/2007/01/return-multiple-values-from-web-serv
ice.html
2. You can also use "by ref" parameter to define webmethod
parameters(which can also return to the calling client).
For example, the following webmethod return a string value, and also define
a integer paramete as "by reference" that can return value to client.
[WebMethod]
public string WSMethod(string name, ref int status)
{
status = 3;
return "result";
}
At client side, you can call the webservice method and get the two value
returned( the string return value and the integer parameter):
====================
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
Dim status As Integer
Dim ws As New WSREF.WebService
Dim ret As String = ws.WSMethod("steven", status)
MessageBox.Show("result: " & ret & ", status: " & status)
End Sub
======================
Hope this helps.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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