Rob Garrett - Blogs

Yikes! You're code formatter really munged up those XML comments! Still, it looks good. I'll have to give this a try over the weekend. Great job!

Ed

PS: Maybe you could create a little download link for code like this? ;-)

And "you're" spell checker didn't stop me from looking like an idiot!

Yeah, the code syntaxer is a little too smart for it's own good, I really need to find an alternative tool, or to fix it.

I was going to put the code on download but was in haste this afternoon (mainly because I'd spent all afternoon spitting at NOAA). I can put the file on line if you'd like it.

Any idea how a lowly VB programmer can use this code? I've translated it into VB (using online tools) and can't seem to get it to parse and/or work.

GRRRRRRRRRRrrrrrrrrrrrrrrrrrrr is right!

NOAA broke their service, see my latest post...

http://robgarrett.com/blogs/rant/archive/2006/02/14/1847.aspx

1. Is your VB code compiling?
2. I would use the Weather.com service on account of NOAA's service being unreliable.
3. If the translation of C# to VB.NET is your issue, can you not just create a class library with my code and call it from your VB.NET code?

Could you please provide the file with the source code for this? Do you have this working for ASP.NET 2.0 / Visual Studio 2005? Thank you for sharing this information.

I have this compiling now using Visual Studio 2005. The trick was to paste your code into a new class file, delete the line numbers from the left side, and add the following namespace references:

using System.Net;
using System.Xml.Serialization;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.ComponentModel;

However, now instead of the protocol violation error I get a different error:
The request failed with HTTP status 502: Bad Gateway
This comes from line 62:
object[] results = this.Invoke("NDFDgenByDay", new object[] {

Any ideas?

A word of warning - the last time I looked at NOAA's weather web service, they had broken the SOAP interface (http://robgarrett.com/blogs/rant/archive/2006/02/14/1847.aspx
). My advice would be to sign up with http://weather.com and use their service instead.


BTW, if you click "View Plain" in the top right of the code window you do not have to remove the line numbers from my code yourself.

NOAA has been changing its weather forecast Web service and my Weather Report control has been broken...

This helped me out a ton!!!!  Had this same problem and were it not for you, those guys down at the NWS would have received some floggings.

How about this for winforms? can i do it? anyone has a converted example?

Rob,

Nice work. I found that if you insert the HTTP1.0 override into the WSDL web reference generated code, it starts to work.

It strikes me that this is a more a .NET 2.0 missing feature that a NOAA problem.

Henry

Great tip! I took this a bit further,  incorporating inheritance. Here's my sollution (VB.NET)


Public Class WsCustomProxy
  Inherits WsNamespace.WSProxy
  Protected Overloads Overrides Function GetWebRequest(ByVal Uri As Uri) As System.Net.WebRequest
     Dim req As HttpWebRequest = CType(MyBase.GetWebRequest(Uri), HttpWebRequest)
     req.ProtocolVersion = HttpVersion.Version10
     Return req
  End Function
End Class

I have the same problem that David, I receive a diferent error: 502 Bad Gateway.

Somebody fix this?

Just tried to get the NDFDgen() method working using the same trick, but it generates the "Bad Gateway" exception. Not sure why NDFDgenByDay works and this doesn't...

Any ideas ?

Henry

The service seems to return a 502 error when you pass it bad parameters. I was calling NDFDgenByDay and finally got it to work by passing the longitude value as a negative number. (In addition to using the http 1.0 workaround discussed above)

Had any luck with NDFDgenAsync? I've got: Private Sub NOAA_Completed(ByVal sender As Object, ByVal e As NOAA.NDFDgenCompletedEventArgs) Handles xWeather.NDFDgenCompleted Try If e.Cancelled Then ElseIf Not e.Error Is Nothing Then Else sWeather = e.Result End If Catch ex As Exception ErrorMsg(ex) End Try End Sub But it never seems to fire off the event...

I am consuming the web service in windows app, Visual Studio 2005, C# and getting the exception - {"The server committed a protocol violation. Section=ResponseStatusLine"} What can I do to resolve this? Thanks Pooja.

As other people have said, throwing this in Reference.cs file(in the main class): Using System.Net; ............ protected override WebRequest GetWebRequest(Uri uri) { HttpWebRequest request = (HttpWebRequest)base.GetWebRequest(uri); request.ProtocolVersion = HttpVersion.Version10; return request; } Worked for us using 2.0

I struggled with this for a bit and finally put together a (good) working solution... I finally figured this out using so many sources it's hard to give credit but this idea isn't mine, just the implementation. THE REAL ASP.NET 2.0 SOLUTION: I fought this for a while and finally got the right code to fix this problem in ASP.Net 2.0. As many of you know, ASP.Net 2.0 generates the proxy classes dynamically so you can't just simply edit them. The key is in a new feature, 'partial classes'. Below is everything you need to know to fix this in ASP.Net 2.0. First, my web reference declaration is: weather.ndfdXML The standard instantiation would then look like: weather.ndfdXML2 wxService = new weather.ndfdXML2(); With this setup, I ran into the exact same problem everyone else has written about here and rarely solved. First, add a new class and make it a partial class (C# code posted): using System; using System.Net; using System.Web.Services.Protocols; namespace weather { public partial class ndfdXML2 : weather.ndfdXML { protected override System.Net.WebRequest GetWebRequest(Uri uri) { //throw new Exception("Custom WebRequest override code hit!!"); System.Net.HttpWebRequest webRequest = (System.Net.HttpWebRequest)base.GetWebRequest(uri); webRequest.KeepAlive = false; webRequest.ProtocolVersion = HttpVersion.Version10; return webRequest; } } } You can optionally uncomment that new exception to verify that the code is indeed executing. Second, change you instantiation inside your code to the following: weather.ndfdXML2 wxService = new weather.ndfdXML2(); Now everything works great!!

Thanks for the walkthrough code sample, Craig Scheets. I converted it to VB and I finally got it working. Everyone else, thanks for the discussion and learning points.

Thank you so much for this solution. I was easily able to get the rest of the Methods working by pasting them from the Web Reference into the WeatherProxy class. Now you can access the Asynchronous download methods as well!

Getting Error : Unable to read data from the transport connection I am using this same web service. NDFD service for wether data : http://www.weather.gov/forecasts/xml/ First i got error : underlaying connection closed. its resolved after i puts protected override System.Net.WebRequest GetWebRequest(Uri uri) { System.Net.HttpWebRequest webRequest = (System.Net.HttpWebRequest)base.GetWebRequest(uri); webRequest.ProtocolVersion = HttpVersion.Version10; webRequest.KeepAlive = false; return webRequest; } But now in some cases its gives me error: Unable to read data from the transport connection. Connection closed. Plz.. can any one help me on this? I m using ASP.Net 2.0

Thanks Craig for debugging that problem. I thought I'd post the VB. I added the web reference using http://www.weather.gov/forecasts/xml/SOAP_server/ndfdXMLserver.php?wsdl and then changed the default namespace VS2005 came up with from 'gov.weather.www 'to just 'weather'. Namespace weather Partial Class ndfdXML2 Inherits ndfdXML Protected Overrides Function GetWebRequest(ByVal uri As Uri) As System.Net.WebRequest Dim oWebReq As System.Net.HttpWebRequest oWebReq = MyBase.GetWebRequest(uri) oWebReq.KeepAlive = False oWebReq.ProtocolVersion = System.Net.HttpVersion.Version10 Return oWebReq End Function End Class End Namespace

PingBack from http://www.omegacoder.com/?p=40

I recently consumed the NOAA web service and began receiving the problems you had. I wanted to continue to use the proxy class which was generated by Microsoft. I simply took your override of GetWebRequest and placed in the main class of my reference.cs hidden proxy file. I have blogged here ( http://www.omegacoder.com/?p=40 ) and gave this page as a link of thanks.

Just wanted to send a thank you, your code helped me with a similar problem I've been having the last couple of days :-) Warm regards from Stockholm, Sweden.

When you say proxy, do you mean your service class that inherits from System.ServiceModel.ClientBase? If I put that override there, the compiler says that there is no suitable method to override. I know this solution will work, I just need to know where exactly to implement it.

Anyone have a VB.NEt version of this? And how can I make this dynamic? Send the lat long to get the weather from different places? Thanks kindly for your time.

Thaks for Rob and JacDev, who write translated code. This helps me in one project. Greateengs from Lithuania

Do you know if NOAA changed something recently? I was consuming their web service fine and then one day I started getting the "the server committed a protocol violation" error. I made the changes to the Reference.cs as above and it seemed to fix the problem. It is just odd that it worked yesterday and all the sudden it does not work today.

Hello, Can you provide in classic asp the above code. http://www.a2zinterviewquestions.com