Using Parameter-based Web Services

[Duncan Sutherland]

Assume a simple 3-tier distributed application: SQL back-
end, a web service (ws) running on IIS, and a Windows
Form client. Assume a simple ws that does a parameter-
driven query of the SQL database. I have been scouring
the various MSFT sites and can't find an answer to two
very basic questions:

1. I assume the ws method that extracts the data from the
SQL database needs to include the relevant parameter(s);
and

2. How is/are the parameter(s) passed to the ws method?

Microsoft sample code looks like this for a non-
parameterized situation:

Dim ws As New AuthorsWinClient.localhost.AuthorsService
....credentials stuff...
AuthorsData.Merge(ws.GetAuthors())

This works fine but I am not clear how to do this when
one or more parameters are involved?

Thanks for any guidance/assistance!

 

[Ed Smith[msft]]

When defining the service, just define a parameter the same way you would
if it were a regular function.
They when the proxy class is created, you can pass it the argument.


This example has a web method that takes a string.
http://samples.gotdotnet.com/quickstart/util/srcview.aspx?path=/quickstart/a
spplus/samples/services/DataTypes/DataTypes.src&file=VB\DataTypes.asmx&font=
3

Hope this helps;
-Ed Smith
VB QA Team

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