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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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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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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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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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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Nov 3, 2011
My console errors out when I enter anything other than a number or operators in the designated (input). I stink at this stuff but I have been t this for about 8 hrs. still not there. I have included a text file for the task at hand
[Code]...
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Jul 15, 2009
I'm using WMI code and VB 2008 to see NIC status. So far the queries are working, but the methods aren't. For example, I'm trying to set a network card to use DHCP, I get invalid function with this code:
Dim classInstance As New ManagementObject("rootCIMV2", "Win32_NetworkAdapterConfiguration.Index='7'", Nothing)
Dim outParams As ManagementBaseObject = classInstance.InvokeMethod("EnableDHCP", Nothing, Nothing)
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Jun 2, 2010
I'm getting Invalid column name 'CHARLES'. Invalid column name 'CHARLYN'. Invalid column name 'SMITH'.what's wrong with my code, it's been a long time since I used SQL dataset. I'm into LINQ but I'm having problems with this kind of LINQ query so I'm reverting to SQL dataset.here's my code:
'Set up a data set command object.
Dim sSelectColumn As String = ("SELECT * FROM tblScanned WHERE LastName=" & sLastName & " AND FirstName =" & sFirstName & " AND MiddleName =" & sMiddleName)[code].....
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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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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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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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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.Donīt 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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Apr 19, 2011
Got a strange one and I know it is something silly but I can't see it for anything I have a DLL created in VB.net (No I can't change it! :-)) and am calling it from C#. The problems come at the point the object is created in C# and I get the message that it has "some invalid arguments".
The constructor code in the DLL is as follows:
Sub New(ByRef Connection As IConnection)
The code in C# is:
IConnection conn = new Connection();
CustomObject test = new CustomObject(conn)
It is happy with the first line but it gives the error message ("some invalid arguments") on the second line. I have also created a secondary project in VB.net and called the DLL and it works fine there.
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Feb 7, 2011
I have the following jquery which is invalid:
{
"id": 12,
"heading": "heading goes here 3",
"content": "<p><span style="color: #ff0000;">content</span> <u><strong>goes </strong></u><span style="color: #ffffff;"><span style="background-color: #ff0000;">here</span></span> 3.</p>"
}
I am generating this with asp.net (vb.net) from data stored in a database. I think I need to somehow escape the double quotes within the content section of the json data. How do I do this?
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Sep 3, 2010
I'm getting an invalid cast exception but I'm not sure why, here is the list of my conversions.
SQL -> VB.NET
char(4) -> String
varchar(50) -> String
tinyint -> Integer
char(1) -> Char
bit -> boolean
[Code]...
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Jun 18, 2010
i have an app in vb.net 2008 having an employee form with includes among other controls ,a button (named btnEmpRmk) for comment and textboxes and txtEmpId for employee's ID respectively.
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Dec 3, 2010
CLR detected an invalid program
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Aug 12, 2009
I have form on VB2008 and Mysql as Database which have 24 textfields on a form.I want to impose certain condition that when ever user adds/updates/modifies data into database for example You may have entered text in a numeric fied or a number that is larger than the fieldsize setting permitts. if violates message box should appear with Invalid entries
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Jul 12, 2009
How to inform that the user has entered wrong username/invalid [code]...
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Nov 2, 2010
i have a code below. Everything seems alright but the GetConsoleFontSize return value is invalid in my PC. it returns back cfi.dwFontSize x=0 y=7 the right result must be 8*12. i have also a VB6 code sample everything is same but why in VB.net machine i have got different result. i also tried to change declarations but i could not find an answer.[code]
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Jun 29, 2010
I have a gridview0 in a multiview and when I click select on a row I have theGridView0_SelectedIndexChanged sub change to a different view in the multiview, which has a different gridview1 but the same datasource as gridview0. This is when it errors out and it displays the invalid column name error, with the column name being the datakeyname of the first gridview0 row that was selected
Protected Sub GridView0_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView0.SelectedIndexChanged
Dim ISTag As String = GridView0.SelectedDataKey.Value.ToString
[code].....
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Jan 1, 2011
I am attempting to write some interface code for a piece of hardware. Because the hardware requires use of 12 control lines, I believe the parallel port is the easiest connection method. After some research, I have discovered that inpout32.dll is the most efficient solution with only two commands to worry about (inp32() and out32()). I have downloaded the dll and attempted to place it in my code using both dim and declare statements. The file resides in the root level of the project folder as well as another copy in the windows directory. No matter how I try to call the dll it gives me errors stating that libraries were expected and that the dll does not exist.
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May 28, 2009
I get the following error: Heap block at 068B13D8 modified at 068B1408 past requested size of 28Invalid address specified to RtlFreeHeap( 003B0000, 068B13E0 )Invalid address specified to RtlFreeHeap( 003B0000, 068B1420 )
What I did is I have a have a custom save as dialog. Every time I hit the save button, I see the heap message. It does not always crash my program but it does. Here is my code,
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Apr 19, 2010
Private Sub lVW_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LVW.Click
With LVW 'LVW=ListVew Name
LVW.Text = .SelectedItems.Item(0).Text
[code].....
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Feb 16, 2011
see from the following function why I would be getting an "Invalid Cast Exception"? More specifically this is the error "Conversion from string "yyyyMMdd" to type 'Integer' is not valid." I am trying to convert a DateTime value from the database to a String with the format "yyyyMMdd" so for example October 22, 1985 would be "19851022".dbReader(fieldName).ToString("yyyyMMdd")Here is the entire function ...
Private Function GetDBReaderDateValue(ByVal dbReader As IDataReader, ByVal fieldName As String) As String
If dbReader(fieldName) Is DBNull.Value Then
[code].....
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May 29, 2012
How do I get rid of invalid cast expression from the Values in the Combobox to fit in the equation in examgrade? I tried to resolve it by looking it up on MSDN, and the like but couldnt figure it out.I tried using Examgrade = ().ToString but that did not work.FYI this is my first real program, I successfully made this once in C# but deleted the source files, so this is Visual Basic and a hell of a lot easier to get this far.The asterisks mark the problem line
Public Class Calculator
Dim quarter3 As Integer
Dim quarter4 As Integer[code].....
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Jul 10, 2009
I am getting error with the following code. The exception is Invalid column name 'pmoss;.The code seem to be perfectly but don't know what exactly went wrong.[code]
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May 25, 2011
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
For Each CtrlName In Form1.Controls
'Some code here
[code].....
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Sep 11, 2011
I'm trying to connect vb to sql server using this code:
Public Class _Default
Inherits System.Web.UI.Page
Dim insertQuery As String
[Code]....
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Sep 11, 2011
I'm new to VB, trying to connect vb to sql server using this code:
Code:
Imports System.Data.OleDb
Public Class _Default
Inherits System.Web.UI.Page
Dim insertQuery As String
Dim updateQuery As String
Dim deleteQuery As String
[Code]...
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