I have created a web service, which when I call in my browser presents the
text form etc. When I click the button, I get this error:

System.ArgumentException: Cannot convert  to System.Int32.
Parameter name: type ---> System.FormatException: Input string was not in
a
correct format.
  at System.Number.ParseInt32(String s, NumberStyles style,
NumberFormatInfo info)
  at System.String.System.IConvertible.ToInt32(IFormatProvider provider)
  at System.Convert.ChangeType(Object value, Type conversionType,
IFormatProvider provider)
  at System.Web.Services.Protocols.ScalarFormatter.FromString(String
value,
Type type)
  --- End of inner exception stack trace ---
  at System.Web.Services.Protocols.ScalarFormatter.FromString(String
value,
Type type)
  at
System.Web.Services.Protocols.ValueCollectionParameterReader.Read(NameValu
eCollection
collection)
  at
System.Web.Services.Protocols.HtmlFormParameterReader.Read(HttpRequest
request)
  at System.Web.Services.Protocols.HttpServerProtocol.ReadParameters()
  at System.Web.Services.Protocols.WebServiceHandler.Invoke()
  at
System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest()This
seems to happen only when I have parameters of different data types, e.g.:

Works:
======
<WebMethod()> _
Public Function GetAddresses(ByVal a As String, ByVal b As String) As
DataSet

Causes Error:
===========
<WebMethod()> _
Public Function GetAddresses(ByVal a As String, ByVal b As Integer) As
DataSet

Any ideas/suggestions will be much appreciated.

Regards,

Simon.

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