We are having a lot of difficulty trying to use the HTTP Post completion event.  After a few days of troubleshooting it looks like we are not able to use a URL that is on the same webserver as our DNN site.  We have tried just making a simple one question form, if the Post URL is say http://www.google.com it goes without a problem, if we change it say to the root of our site, http://www.allsup.com, for example we get a Page Load Exception error (see below for excerpt from the Event Viewer).  We have tried several different URLs, both inside and outside of our DNN site, and it appears that if the URL is on the same webserver, it fails.  We tried a similar setup on the betasprings site, created a one form field with a HTTP Post completion event, using betasprings for the HTTP Post URL and it worked fine there.  We are stuck on what to do from here.  We were hoping to use the HTTP Post event to post the form to another page we already had created to handle our form processing that was created pre-DNN that uses a different datasource than the DNN install is using.

DF Version: 02.60.30, DNN Version: 04.08.02

Info from Event Viewer:

AssemblyVersion: 04.08.02
PortalID: 4
PortalName: Allsup Consumer Site
UserID: 17
UserName: twhilliard
ActiveTabID: 453
ActiveTabName: Test
RawURL: /AboutSSDI/Test/tabid/453/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.allsup.com/AboutSSDI/Tes...fault.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Flypaper; .NET CLR 1.0.3705; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 057169c3-cf31-430c-92fa-de8008b89843
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DataSprings.Modules.DynamicForms.DynamicForms.ProcessEvents
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DataSprings.Modules.DynamicForms.DynamicForms.ProcessEvents(Boolean blnRedirectOnly, Boolean blnPaymentGateway, String strPaymentStatus, String strResponseID, Int32 intPaymentUserID) at DataSprings.Modules.DynamicForms.DynamicForms.SubmitForm(Boolean ProcessPaymentNotification, String strResponseID) at DataSprings.Modules.DynamicForms.DynamicForms.lnkSave_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e) at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:
Server Name: WEB01

We are using Dynamic Forms version 02.60.30 according to the module definitions section.  Yes, it is set on Any Field Response, I left that portion as the default and only modified the Post URL and Post fields. I just tried on betasprings.com having the one field form point to our site and it went through ok.  Also, we had the forms initially on the DNN site using iframes, but that was causing some issues with our site tracking which is why we wanted to get them out of the iframe, however those iframes were submitting forms without an error, so it would seem that the web server is able to allow posts.

Sorry, just realized I didn't answer one of your questions.  Yes it does appear to be saving the URL and post information, in that when we go back into the settings they are there.

No we haven't checked that option as of yet.

We tried checking the email admin option, it appears we only get emails sent to us when it works.  We aren't getting any email when this Object Reference error occurs.  The error seems to be referencing a function that deals with the payment options, but we don't have any of that turned on, is there possibly something that is trying to be checked that our server is not returning or configured to return?

We are self-hosting using a dedicated server that is behind a firewall.  The trust level is at medium, we tried temporarily changing it to Full Trust, but we still got the same error.  I am not sure if looking at the basic code would help, I was just trying to think of what would result in a null reference.

We finally solved this issue.  Turns out it was a DNS routing issue with our webserver.

I am not able to get http post control values

Please give example

Rakesh - See if this thread helps that covers Dynamic Forms w/ HTTP Post Completion Event.

Thanks,

Chad

I am getting the same error listed above while running 3.10.0.  I even tried hardcoding the values for the short field names.

The form I'm trying to duplicate (and is working) is:

<form> action="https://footprints-test.uits.iu.edu/forms/form_processor.php" method="post">

 

    <!-- Built in fields -->
    Title:
 

Description:
 
   

Support Type:
   
      Equipment Request
      Computer Support
   
 

Username

First Name

Last Name

Email Address

I changed it to:

projectID=79&status=Open&priorityNumber=1&delimiter=|&action=create_issue&title=$(title)&description=$(desc)&supporttype=$(support)&username=$(username)&firstname=$(FN)&lastname=$(LN)&emailaddress=$(email)

I'm getting the same error. 

First of all, thanks for the help.  I appreciate it.

I've cut the HTTP Post down to:

projectID=79&status=Open&priorityNumber=1&action=create_issue

I've even tried removing it all together.

Whatever I try, I get the same error message.

Nathan

I went back to my working HTML form and posted the form while watching the session with an HTTP debugging proxy.  I verified that my original HTTP Post settings were correct.  I went back and took out all of the short field names and replaced them with hard coded values that matched my successful submission with my HTML form. 

title=Test&description=&Test&supporttype=Equipment Request&username=nsbyrer&firstname=Nathan&lastname=Byrer&emailaddress=nsbyrer@iupui.edu&abfields_mappings=username=>Username | firstname=>First Name | lastname=>Last Name | emailaddress=>Email Address&projectID=79&status=Open&priorityNumber=1&delimiter=|&projfields_mappings=supporttype=>Support Type&abfields_mappings=username=>Username | firstname=>First Name | lastname=>Last Name | emailaddress=>Email Address&action=create_issue

I still get the same error message.  If l leave the HTTP Post blank, I get the same error message.  If I put in just the required values, I get the same error message.

I have also tried deleting the event and recreating it. 

I downloaded the most recent update.  That didn't help either. 

I get the error there too.

I don't know of any that I can try.  If you have a suggestion of one, I'd like to try it.

I am successfully posting to this site using an HTML form.

Okay, I found a simple one to try.  I was able to make it work.  I was even able to watch what the page is responding using debug mode.  I then tried taking my HTTP Post and used it with the URL that I was successful with and didn't get an error.  As soon as I use the page I am trying to post to, I get the error.  I can't troubleshoot it further though.  When I put it in debug mode, I get the error before anything else on the page loads, so I can't see any of the debug results and the error message in the Event Viewer isn't any help. 

Can you think of a way that I can see the debug information when this error presents itself?

I'm afraid that is going to end up being a dead end as I can't produce any reports as to what is going wrong.  Is there a way to find out what is happening to cause the error?  As I said before, the error is very nondiscript.  I can go to the people with the website, but I expect that they are going to say that their form works with other servers and forms and it must be an issue with my form tool.  I really need some data to backup my claims.

Chad,

Thanks for taking a look at this for me.  My answers are below.

1.  I am posting to a different server, but the error is the same.  I didn't mean to jack the thread.  If we need to move it to another thread, just let me know where it gets moved to.

2.  I listed the HTML of my working HTML form earlier in this thread.  It is an HTTP Post.

3.  Below is the error out of the Event Viewer:

AssemblyVersion: 5.2.1
PortalID: 24
PortalName: UCTS Online Portal
UserID: 1
UserName: host
ActiveTabID: 3215
ActiveTabName: Request Service
RawURL: /Resources/RequestService.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: https://ucts.uc.iupui.edu/Resources/RequestService.aspx
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 4948b36c-50f8-40be-92bc-8b730b5dad48
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DataSprings.Modules.DynamicForms.DynamicForms.ProcessEvents
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DataSprings.Modules.DynamicForms.DynamicForms.ProcessEvents(Boolean blnRedirectOnly, Boolean blnPaymentGateway, String strPaymentStatus, String strResponseID, Int32 intPaymentUserID) at DataSprings.Modules.DynamicForms.DynamicForms.SubmitForm(Boolean ProcessPaymentNotification, String strResponseID, Boolean blnByPassValidation) at DataSprings.Modules.DynamicForms.DynamicForms.lnkSave_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e) at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:
Server Name: IN-UCOL-WEBSRV1

4.  I've added the form on betasprings and got the same error.  It should still be there on a page named after me if you want to take a look at it. 

 That is the correct URL.  It is locked down by IP address and won't respond unless you are on our campus network.  If you want to test this, I think I'll need to get you an account on our network and have you make a VPN connection.

It does respond with a little text regarding the ID number of your entry and what queue you submitted in when you successfully communicate.

The URL on betasprings is:

http://www.betasprings.com/NathanBy...fault.aspx

Nathan

It is not using credentials to access the form.  It just looks at the source IP address to see if it is in one of our subnets.  So, from home if I try to go to the URL, the server will not respond at all.  Once I make a VPN connection, the server will respond immediately. 

 Oh, yes, I'm sure the HTTP headers are using the IP address of the DNN server and not the client. That is the way I need it to work.  That means that the betasprings test didn't really tell us anything other than I am getting the same error.  My working HTML form and DNN are on the same server and using the same IP address, so it may not matter.

Chad,

I worked with the owner of the server.  In their logs, they are not showing any attempt by my form to try to post content to their server.  It's like the error happens before the form can attempt to post the content to the server. 

Nathan

Chad,

Any thoughts about going forward?

Nathan

I sure would appreciate it.  I think if I could see what is going on when the error occurs, I could speak more intelligently with the people that run the website I am trying to post too. 

Thanks,

Nathan