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Jchapman65

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12 Posts

contact form keeps giving invalid MAC viewstate error

Feb 01, 2013 02:13 AM|LINK

I'm new to ASP.NET coding and need a little bit more help on correcting this form error.

This is the error I recieve everytime I fill out my contact form:

Server Error in '/' Application.

Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

Source Error:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace:

[ViewStateException: Invalid viewstate. 
	Client IP: 69.245.134.17
	Port: 61833
	User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.56 Safari/537.17
	ViewState: 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...]

[HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.]
   System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +106
   System.Web.UI.ViewStateException.ThrowMacValidationError(Exception inner, String persistedState) +14
   System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +237
   System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4
   System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +37
   System.Web.UI.HiddenFieldPageStatePersister.Load() +207
   System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +105
   System.Web.UI.Page.LoadAllState() +43
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6785
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +242
   System.Web.UI.Page.ProcessRequest() +80
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
   System.Web.UI.Page.ProcessRequest(HttpContext context) +49
   ASP.contact_us_aspx.ProcessRequest(HttpContext context) +37
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Version Information: Microsoft .NET Framework Version:2.0.50727.4234; ASP.NET Version:2.0.50727.4223

Reply

oned_gk

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30979 Points

6338 Posts

Re: contact form keeps giving invalid MAC viewstate error

Feb 01, 2013 02:47 AM|LINK

http://forums.asp.net/t/1785386.aspx/1?System+Web+HttpException+Validation+of+viewstate+MAC+failed

http://forums.asp.net/t/1751845.aspx/1?Validation+of+viewstate+MAC+failed

Programming to simplify, dont look for hard way

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Jchapman65

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0 Points

12 Posts

Re: contact form keeps giving invalid MAC viewstate error

Feb 01, 2013 12:34 PM|LINK

okay, I generated the new key and placed it inside the web.config file and now I get this error: (and the SMTP server address is correct I triple checked it)

Server Error in '/' Application.

The transport failed to connect to the server.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Runtime.InteropServices.COMException: The transport failed to connect to the server.

Source Error:

Line 111:		mm.Body = sScript
Line 112:		System.Web.Mail.SmtpMail.SmtpServer = "mail.a-1door.com"
Line 113: System.Web.Mail.SmtpMail.Send(mm) Line 114:		
Line 115:		Response.Redirect("confirm.aspx")

Source File: E:\HostingSpaces\a1admin\a-1door.com\wwwroot\contact-us.aspx Line: 113

Stack Trace:

[COMException (0x80040213): The transport failed to connect to the server.
]

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeType.InvokeDispMethod(String name, BindingFlags invokeAttr, Object target, Object[] args, Boolean[] byrefModifiers, Int32 culture, String[] namedParameters) +0
   System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) +337
   System.Type.InvokeMember(String name, BindingFlags invokeAttr, Binder binder, Object target, Object[] args, CultureInfo culture) +36
   System.Web.Mail.LateBoundAccessHelper.CallMethod(Type type, Object obj, String methodName, Object[] args) +66
   System.Web.Mail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) +49

[HttpException (0x80004005): The transport failed to connect to the server.
]
   System.Web.Mail.LateBoundAccessHelper.CallMethod(Object obj, String methodName, Object[] args) +99
   System.Web.Mail.CdoSysHelper.Send(MailMessage message) +1738
   System.Web.Mail.SmtpMail.Send(MailMessage message) +351
   ASP.contact_us_aspx.FormSubmit(Object sender, EventArgs e) in E:\HostingSpaces\a1admin\a-1door.com\wwwroot\contact-us.aspx:113
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +111
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +110
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

Version Information: Microsoft .NET Framework Version:2.0.50727.4234; ASP.NET Version:2.0.50727.4223

and here's the chunk of code the error is referring to:

<!-- Smart Data Collection Form -->

<script language="vb" runat="server">
Sub FormSubmit(sender As Object, e As System.EventArgs)

	Page.Validate()
	If Not Page.IsValid Then
	Return
	End If

		Dim sScript As String
		sScript = "Name: " & txtName.Text.Trim() & vbCrLf
		sScript = sScript & "Address: " & txtStreet.Text.Trim() & vbCrLf
		sScript = sScript & "City: " & txtCity.Text.Trim() & vbCrLf
		sScript = sScript & "State: " & listState.SelectedValue & vbCrLf
		sScript = sScript & "Zip Code: " & txtZip.Text.Trim() & vbCrLf
		sScript = sScript & "Email Address: " & txtEmail.Text.Trim() & vbCrLf
		sScript = sScript & "Phone Number: " & txtPhone.Text.Trim() & vbCrLf
		sScript = sScript & "Best time to Contact: " & txtContactTime.Text.Trim() & vbCrLf
		sScript = sScript & "Comments: " & txtComments.Text.Trim() & vbCrLf
		
		Dim mm As New System.Web.Mail.MailMessage
		mm.To = "joshc@atgfw.com"
		mm.From = txtName.Text.Trim() & " <" & txtEmail.Text.Trim() & ">"
		mm.Subject = "[A-1 Door] Contact Request"
		mm.BodyFormat = System.Web.Mail.MailFormat.Text
		mm.Body = sScript
		System.Web.Mail.SmtpMail.SmtpServer = "mail.a-1door.com"
		System.Web.Mail.SmtpMail.Send(mm)
		
		Response.Redirect("confirm.aspx")
	End Sub
</script>

Edited by Jchapman65 on Feb 01, 2013 12:36 PM

Reply

oned_gk

All-Star

30979 Points

6338 Posts

Re: contact form keeps giving invalid MAC viewstate error

Feb 01, 2013 01:04 PM|LINK

Looks like connection problem. make sure you can connect in the server. Try connect using mail client or outlook.

Programming to simplify, dont look for hard way

Reply

Jchapman65

None

0 Points

12 Posts

Re: contact form keeps giving invalid MAC viewstate error

Feb 01, 2013 06:55 PM|LINK

is it coming up with the error because i'm using a different domain email address than the SMTP server?

I'm sending the email to "joshc@atgfw.com" but the SMTP server is: mail.a-1door.com, do I have to be using an "@a-1door.com" email address?

Reply

Jchapman65

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0 Points

12 Posts

Re: contact form keeps giving invalid MAC viewstate error

Feb 01, 2013 09:28 PM|LINK

Scratch that last message; Here's my script that reads the information from my contact form to send as an email:

<script language="vb" runat="server">
Sub FormSubmit(sender As Object, e As System.EventArgs)

	Page.Validate()
	If Not Page.IsValid Then
	Return
	End If

		Dim sScript As String
		sScript = "Name: " & txtName.Text.Trim() & vbCrLf
		sScript = sScript & "Address: " & txtStreet.Text.Trim() & vbCrLf
		sScript = sScript & "City: " & txtCity.Text.Trim() & vbCrLf
		sScript = sScript & "State: " & listState.SelectedValue & vbCrLf
		sScript = sScript & "Zip Code: " & txtZip.Text.Trim() & vbCrLf
		sScript = sScript & "Email Address: " & txtEmail.Text.Trim() & vbCrLf
		sScript = sScript & "Phone Number: " & txtPhone.Text.Trim() & vbCrLf
		sScript = sScript & "Best time to Contact: " & txtContactTime.Text.Trim() & vbCrLf
		sScript = sScript & "Comments: " & txtComments.Text.Trim() & vbCrLf
		
		Dim mm As New System.Net.Mail.MailMessage

		mm.To ="webadmin@a-1door.com";
		mm.From = txtName.Text.Trim() & " <" & txtEmail.Text.Trim() & ">";
		mm.Subject = "[A-1 Door] Contact Request";
		mm.BodyFormat = System.Web.Mail.MailFormat.Text;
		mm.Body = sScript;
		SmtpClient sC = new SmtpClient("mail.a-1door.com");
		sC.Port = 25;
		sC.Send(mm)

		<!--System.Web.Mail.SmtpMail.SmtpServer = "mail.a-1door.com"
		System.Web.Mail.SmtpMail.Send(mm)-->
		
		Response.Redirect("confirm.aspx")
	End Sub
</script>

Here's the bottom line. I need this script to read my contact form and send the email to "webadmin@a-1door.com" using the SMTP server "mail.a-1door.com". I am trying to convert this script from System.Web.Mail to System.Net.Mail. Port 25 is the correct port. How do I fix this script.

Please note that I inherited this website and did not write the original code. So I am a little confused when you get outside of editing web.config or this contact form script.

I am a complete stranger to ASP.NET so please be as elaborate as possible, Thank you in advance for your time and cooperation.

Edited by Jchapman65 on Feb 01, 2013 09:30 PM

contact form keeps giving invalid MAC viewstate error RSS

5 replies

Jchapman65

contact form keeps giving invalid MAC viewstate error

Server Error in '/' Application.

Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

oned_gk

Re: contact form keeps giving invalid MAC viewstate error

Jchapman65

Re: contact form keeps giving invalid MAC viewstate error

Server Error in '/' Application.

The transport failed to connect to the server.

oned_gk

Re: contact form keeps giving invalid MAC viewstate error

Jchapman65

Re: contact form keeps giving invalid MAC viewstate error

Jchapman65

Re: contact form keeps giving invalid MAC viewstate error

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