Invalid Length For A Base-64 Char Array?

Sep 7, 2011

My program gets an encrpyted query string ,decrypts it and then pulls the pdfs in a popup window depending on the values in the string. The issue I am having is I have around 500 ids that I am passing whose pdfs need to be generated, but I keep getting the "Invalid length for a Base-64 char array".

Not sure what I need to do, I have read through the solutions and have done whatever has been said, with replacing the blank with the "+" but I cannot get this to work.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
_CurrentProcName = "Page_Load"

[Code].....

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Getting An Invalid "Invalid Length For A Base-64 Char Array"?

Sep 9, 2011

where I was encrypting the string and passing it to another web page to decrypt and get the ids to be displayed as a pdf back to the page. I kept getting an invalid "Invalid length for a Base-64 char array". It was then I realised that the string was getting truncated and that the IE Explorer had a size limit for the number of charaters being passes as a querystring.So I think I need to go the route of posting it.But not sure how to go about it.

Private Sub GetReport()
Try
Dim hawbs As String = String.Empty[code]....

The retrieve document then does: the decrpytion gets the data(ids) and pulls the pdfs.

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Copy The Char Array To An Int Array With The ASCII Values Of Each Char?

Mar 22, 2012

I have split a string into a char array, now i need to copy the char array to an int array with the ASCII values of each char.Don´t know how to do it without looping each value.

This is my code:

origen = RichTextBox1.Text.ToString
Dim valor As Char() = origen.ToCharArray
Dim numeros As Integer() = (How can i convert "valor" to an int array?????)

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Invalid Character In A Base-64 String?

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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Invalid Char. In Texbox Gives Error To Load Save File Dialog?

May 21, 2009

i'm trying to add textbox1.text as the file name for the save file dialog.. this code works fine when there are no invalid char inputed in the textbox. if there are, my app shuts down.. here's the code that i'm using:

Public Sub saveas()
With SaveFileDialog1
.InitialDirectory = Label1.Text

[code].....

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Length Of Data To Decrypt Is Invalid

Dec 29, 2009

I am trying to build an Encryption/Decryption class/extension. I am able to encrypt the data no problem, but when I try to decrypt the data I am getting "Length of the data to decrypt is invalid."

Here is the entire class file.
Imports System.IO
Imports System.Text
Imports System.Text.Encoding
Imports System.Security.Cryptography
Imports System.Runtime.CompilerServices
Imports System.ComponentModel
[Code] .....

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Change Base 1 Array To Base 0 Array

Jan 31, 2012

I'm retrieving data from Excel and would like to keep my arrays 0 based but Excel returns 1 base. Is there a fairly simple way to return change the array from 1 to 0 base? Or do I just need to create a loop? Here's an example code right here:

[Code]...

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System.Security.Cryptography.CryptographicException: Length Of The Data To Decrypt Is Invalid?

Jan 4, 2012

System.Security.Cryptography.CryptographicException: Length of the data to decrypt is invalid.

My Code:
' Decrypt textfile with Rijndael encryption
Public

[code].....

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String Method - Count The "Char" In A Word (using .Length)

Mar 11, 2010

I have this assignment that says: Create an application to let the user enter a sentence, then calculate how many words there are in that sentence. I know how to count the "Char" in a word (using .Length), but for this assignment, I really have no idea how to count the words in a sentence. What kind of method am I supposed to use for this particular assignment?

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Initialize An Indefinite (eg. Decimal) Array Without Setting Boundaries On The Array Length?

Nov 10, 2009

initialize an indefinite (eg. Decimal) array without setting boundaries on the array length?

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Sort An Array Of Doubles Into A Lowest To Highest Array Of The Same Length?

Nov 29, 2011

best way to sort an array of doubles into a lowest to highest array of the same length.

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Invalid Character In A Base-64 String Adding "Change Password" Functionality For Adminstrators?

Mar 31, 2010

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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Initialize Byte Array To Zeros Given A Specified Array Length?

Aug 2, 2011

given the following Sub, how would I initialize byte array 'temp'to zeros and give it the length of the incoming byte array passed into the subroutine?

Sub ReceivePacket(ByVal buffer As Byte())
Dim temp() As Byte 'initialize to zeros and length of buffer
temp = buffer.Skip(17).ToArray()
End Sub

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"Invalid Character In A Base-64 String"

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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Passing Char Array From VB To C++ DLL?

Aug 31, 2010

I'm trying to pass a char array or string to a C++ dll so it can fill in the contents and pass it backThe C function is declared as:

WORD yasdiGetDriverName(DWORD DriverID,
char * DestBuffer,
DWORD MaxBufferSize);

[code].....

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Updating Array Length While Looping Array

Oct 9, 2009

I am working on a code that should capture the color of a pixel in a bitmap and then check if the 8 surrounding pixels have the same color. If the checked surrounding pixel HAS NOT the same color it will be ignored, otherwise if it HAS the same color, it should check for its own 8 surrounding pixels and so on.

To do that, I have created an array that starts with a single entry (the x,y coordinates of the initial pixel). So, when a pixel with the same color is found it is pushed to the end of the array. I used a for each loop supposing that VB would keep looping until the end of my array - and since it is growing, the last position of the array would be always pushed until I have not more pixels to be checked.

The problem is that VB is not respecting it, and is considering my array as if it had just 1 entry. Seems that it catch the size of the array when it enters the loop, and regardless the fact I have pushed new items to the array it doesnt keep looping it.

How can I force VB to update the end of array position while looping it? Although I think it wouldnt be necessary, here it goes the code I have so far...

Code:

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Why Does The First Element In The 2d Array Determines The Length Of An Array

Jul 4, 2010

[Code]...

This adds 1 and 2 to list. My question is why does the first element in the 2d array determines the length of an array and if we want to get the length 2nd index then what will be the method for that?

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Converting A String To A Char Array?

Mar 23, 2012

I have a string like this.

Dim str As String = "code"

I need to break this string down to an array of characters like this,

{"c", "o", "d", "e"}

How can I do this?

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Splitting String With Array Of Char

Jun 14, 2011

I want to split a string with this array of char
Dim sepa As String = " '"",.;:(){}[]·#|-_<>+¿?=/&%$‚¬@!¡"
The question is how do I include in this string vbcrlf? So I can do the fallowing:
dim palabras as String() = RichTextBox1.Text.ToString().Split(sepa)

I tried:
Dim sepa As String = " '"",.;:(){}[]·#|-_<>+¿?=/&%$‚¬@!¡\r\n"
But it does not work.

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Use For Loop To Add Char To One Dimensional Array

Jul 31, 2010

How to add the Alphabet as Char elements in a one dimensional array, using a For-loop. The length of the array depends on user input, but is generally between 5 and 15, so the how many Char of the alphabet only need to add as many as that.

This is how I have it at the moment :
Public arrayLengthIs As Integer
Public arrayOfColumnsLetter() As Char
arrayOfColumnsLetter = New Char(numberOfColumns) {}
Public Sub addCharToArray()
[Code] ......

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Convert Char To Ascii In Array Form?

Dec 5, 2009

convert char to ascii in array form?.asci[a]but a is char array.i need a syntax for it.

Admin Note: all the communication on the forums.

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Remove Empty Elements From Char Array?

Sep 26, 2011

Remove empty elements from char arrayI have this [code]...

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Split Text But It Always Have A Return Char With It Array?

Aug 2, 2011

I try to split my text but it always have a return char with it array.

This is the code.

text_as_list = Split(ControlChars.CrLf & Trim(text))

How can i split on a new line and split on white space at the same time?

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VS 2008 : Strip Every Other Char From String Or Array?

Jul 7, 2009

I need to strip every other char from an array or string. Whichever is easier.

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Separate A Text Input From A Form Into A Char Array

Apr 14, 2011

I am wanting to create a char array that consists of input from a form text box. I am unable to determine how to index the Char array to accept input letter by letter. if i assign the array a specified length, i am not allowed to set the strID.toCharArray to it. If i choose no index am told the value is less then the array size. I have tried many different ways, including using a counter to increment the array, but i am unable to index the array.

[Code]...

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Can A LINQ Or A LAMBDA Expression Be Used To Count The 1's In A Binary String Or Char Array

Sep 15, 2010

Can a LINQ or a LAMBDA expression be used to count the 1's in a binary string ?For example, if I convert a number to its BINARY using.>>

Dim binaryString As String = Convert.ToString( numberVariable, 2 )

1) Without using a loop such as a FOR NEXT loop, can I count the number of 1's in the STRING using LINQ or a LAMBDA expression?

2) Can I get the indexes of where the 1's are at in a collection such as a LIST using LINQ or a LAMBDA expression?I know the syntax of some LINQ expressions, however, I don't know which method may be suitable.

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Length Property In Array?

Nov 16, 2011

I just don't understand why (intValues.Length - 1) is used: to be precise why the ( - 1 ) is there?

Dim intValues(25) as integer
For intCount = 0 to (intValues.Length -1)
MessageBox.show (intValues(intCount).ToString())
Next

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File I/O And Registry :: Read Char By Char From A String?

Dec 16, 2008

i want to read a character 1 by 1 from a string and a .txt, i know all about stream reader so for the .txt would it be somthing like:textbox1.text = tr.readCharacter.i would prefer to be able to read from a textbox or String array though.

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Validate String To Have No Space Char And Only First And Last Char As Delimeter

Mar 30, 2012

I need validation for string to comply with next: no space char starts with one delimiter char ends with one delimiter char has no other char as delimiter char. Updated sorry missed that should only be one delimiter char at start and at the end

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Argument Matching Parameter 'separator' Narrows From 'String' To &#391;-dimensional Array Of Char'. ERROR?

Dec 28, 2011

Argument matching parameter 'separator' narrows from 'String' to &#391;-dimensional array of Char'. ERROR

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