Asp.net - Error : Hexadecimal Value 0x1F, Is An Invalid Character

Jun 25, 2012

I am getting the following error:

' ', hexadecimal value 0x1F, is an invalid character

Here is my function. I get this error when it hits "reader.MoveToContent()" for the first time. Can anyone point me in the right direction?

Public Function GetSyndicationFeedData(ByVal urlFeedLocation As String) As SyndicationFeed
Dim settings As New XmlReaderSettings() With { _
.IgnoreWhitespace = True, _

[code]....

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Xml - Error: The "(" Character, Hexadecimal Value 0x28, Cannot Be Included In Name?

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When I am converting the word into XML this error is thrown using VB.NET:Error: The "(" character, hexadecimal value 0x28, cannot be included in name

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Public Shared Function GetData(ByVal id As Integer) As List(Of SomeClass)
Dim command As New OracleCommand
Dim conn As New OracleConnection(WebConfigurationManager.ConnectionStrings("ConnectionString").ToString)
Dim param As New OracleParameter

[code]....

This function is giving an ORA-00911 invalid character error. I have other methods of the same style and these are functioning correctly.

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I have the following code:

Private Function ReadRequestedSecurityToken(ByVal rstr As XDocument) As RequestedSecurityToken
Dim requestedToken = (
From rt In rstr.Descendants(WSTrust13Constants.NamespaceURI.ToString &
WSTrust13Constants.ElementNames.RequestedSecurityToken)
Select rt).FirstOrDefault()
If Nothing Is requestedToken Then

[Code]...

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Label1 = TextBox1 AND TextBox2 ^ TextBox3 MOD TextBox4

Once again every all the numbers are in Hexadecimal format.

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Dec 15, 2009

Ok, so I got everything working except for one thing. My program stores text in a settings files (which it saves to and encrypts to wonderfully), but it will only work once. For example, I type in an author, title and body, and click Publish, it publishes and is labeled with a "1.". Restarting the application, you get the desired effect, a decrypted string from the encrypted settings file, now publish another entry, this makes a new line with "vbNewLine" and then encrypts it, fine and dandy. Now apon opening the application again, you get an error stating "Invalid character in a Base-64 string.". What do I do?

Encryption Code:
Public Function psEncrypt(ByVal sInputVal As String) As String
Dim loCryptoClass As New TripleDESCryptoServiceProvider

[code].....

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I'm writing a program and it's got a textbox for the user to enter values. Since the textbox text property should only be a "number", my program need to detect invalid charaters like "*/&()$" and tell the user to only enter a number. Does anyone have an idea how to do that?

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Code: below

Imports System
Imports System.IO
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[CODE]...

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I've written up the following code (please note i only started to learn VB yesterday)

CODE:

And what I want it to do is when a letter, or character, is entered, i want to have Label1 display "invalid" but i cant seem to figure out how...

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I've done some searching on these forums as well as on the Web in general, and while I've found some posts about the error above, I haven't seen anything specific to what I'm experiencing

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Jun 19, 2010

I have a .dat file with base64 encoding. I am trying to decode it with this:

Code:
Dim b As Byte() = Convert.FromBase64String(System.IO.File.ReadAllBytes(Application.StartupPath & "libdata emplatelua.dat").ToString)

finalize:

Code:
System.Text.Encoding.UTF8.GetString(b)

but it give me an error. "Invalid character in a Base-64 string."

base64 code:

[code]...

what am i doing wrong?

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Private Sub lVW_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LVW.Click
With LVW 'LVW=ListVew Name
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[code].....

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I recently upgraded a VB 6 project to .net. I'm having a problem with this block of code:

Dim CtrlName As System.Windows.Forms.MenuItem
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[code].....

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private Sub cmd_update_Click()
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Dim recset As New ADODB.Recordset 'Recordset Object
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[code]....

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[code]....

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I have been writing a security class in my application, I am able to encrypt the string correctly and without error. However every time when I try to decrypt this string again, i get an error with this as it returns the following Padding is invalid and cannot be removed.

Here is the code:

Public Function DecryptKey(ByVal plainText As SecureString, ByVal key() As Byte, ByVal iv() As Byte) As SecureString

Try

[CODE]...

And it provides a stack trace with:

at System.Security.Cryptography.RijndaelManagedTransform.DecryptData(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode paddingMode, Boolean fLast)

[CODE]...

I have found simular issues on web, and most of them say that the IV is not the same the encrypted version, but I can confirm that the IV is the same as they both access the exact same variable.

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decryption error : Padding is invalid and cannot be removed.

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I am getting Invalid Cast Exception was unhandled.Conversion from String 'abc' to type 'Double' is not valid in the following line!

If
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ErrorCode=-2147217843
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