HTTP 500 iNTERNAL SERVER ERROR

[Ross]

Hi folks

I have been designing a web service that is intended to extract information
from a SQL server DB using parameterised SP's. So far I have 2 web methods.

1 GetPostCodeForS uburb(ByVal intSuburb As Int64) As postcode1
2 GetSuburbIDAndN ameForSuburbSta rt(ByVal vchSuburb_Start As Char) As
dsSuburbIDAndNa me

The 1st web method GetPostCodeForS uburb is working OK, but the 2nd one
GetSuburbIDAndN ameForSuburbSta rt has a bug.

''''''''''''''' ''''''''''''''' ''''
When I press F5 a web page comes up with two hyperlinks for the two web
methods. When I choose the 2nd one, a web page pops up quoting "HTTP 500
Internal Server Error". In the body of the page the following message
appears "The page cannot be displayed".

Clicking on the localhost link brings up the following page:
http://localhost/localstart.asp that has the following message in the body:

''''''''''''''' ''''''''''''''
Your Web service is now running.
You do not currently have a default Web page established for your users. Any
users attempting to connect to your Web site from another machine are
currently receiving an Under Construction page. Your Web server lists the
following files as possible default Web pages:
default.htm,def ault.asp,index. htm,iisstart.as p,default.aspx. Currently, only
iisstart.asp exists.

To add documents to your default Web site, save files in c:\inetpub\wwwr oot\.

The code for the Web method is as follows:

''''''''''''''' ''''''''''''''' '''''

<WebMethod()> Public Function GetSuburbIDAndN ameForSuburbSta rt(ByVal
vchSuburb_Start As Char) As dsSuburbIDAndNa me

Dim dsSuburb As New dsSuburbIDAndNa me
Dim cn As SqlConnection
Dim strConnInfo As String
Dim cmd As SqlCommand
Dim pmTemp As SqlParameter
Dim adSuburb As SqlDataAdapter

adSuburb = New SqlDataAdapter

strConnInfo = "server=USE R-LMZWW8DZJO;Inte grated
Security=SSPI;u id=dbo;pwd=;dat abase=Australia nPostCodes"
Try
cn = New SqlConnection
cn.ConnectionSt ring = strConnInfo
cn.Open()

Try
cmd = New SqlCommand
cmd.CommandType = CommandType.Sto redProcedure
cmd.CommandText = "procGetSuburbI DAndNameForSubu rbStart"
cmd.Connection = cn

pmTemp = cmd.Parameters. Add(New
SqlParameter("@ suburb_start", SqlDbType.VarCh ar))
pmTemp.Directio n = ParameterDirect ion.Input
pmTemp.Value = vchSuburb_Start

adSuburb.Select Command = cmd
adSuburb.Fill(d sSuburb)
Return dsSuburb

Catch ex As Exception

End Try

Catch exc As SqlException
Dim errorMessages As String
Dim i As Integer

For i = 0 To exc.Errors.Coun t - 1
errorMessages += "Index #" & i.ToString() &
ControlChars.Ne wLine _
& "Message: " & exc.Errors(i).M essage &
ControlChars.Ne wLine _
& "LineNumber : " & exc.Errors(i).L ineNumber &
ControlChars.Ne wLine _
& "Source: " & exc.Errors(i).S ource &
ControlChars.Ne wLine _
& "Procedure: " & exc.Errors(i).P rocedure &
ControlChars.Ne wLine
Next i

Dim log As System.Diagnost ics.EventLog = New
System.Diagnost ics.EventLog
log.Source = "My Application"
log.WriteEntry( errorMessages)
Console.WriteLi ne("An exception occurred. Please contact your
system administrator." )

Finally

If cn.State = ConnectionState .Open Then
cn.Close()
End If

End Try

End Function

''''''''''''''' ''''''''''''''' '''

Quite frankly, I cannot understand this - hope somebody can help

Kind regards

Ross Petersen