.NET (Core and Framework) Discussion Boards

harikreddy10-Nov-09 0:38

10-Nov-09 0:38

Hi......Please Some One Help Me To Decryption.....i am using asp.net(3.5)code....my code is given below.....it showing one exception("System.Security.Cryptography.CryptographicException: Padding is invalid and cannot be removed.").....so plz someone help me that how i can overcome this problem.....my code is given below.....

Public Shared Function Decrypt(ByVal TextToBeDecrypted As String) As String
Dim RijndaelCipher As RijndaelManaged = New RijndaelManaged()
Dim Password As String = ide
Dim EncryptedData() As Byte = Convert.FromBase64String(TextToBeDecrypted)
Dim Salt() As Byte = Encoding.ASCII.GetBytes(Password.Length.ToString())
'Making of the key for decryption
Dim SecretKey As PasswordDeriveBytes = New PasswordDeriveBytes(Password, Salt)
'Creates a symmetric Rijndael decryptor object
Dim Decryptor As ICryptoTransform = RijndaelCipher.CreateDecryptor()
Dim memoryStream As MemoryStream = New MemoryStream(EncryptedData)
'Defines the cryptographics stream for decryption.THe stream contains decrpted data
Dim cryptoStream As CryptoStream = New CryptoStream(memoryStream, Decryptor, CryptoStreamMode.Read)
Dim PlainText() As Byte = New Byte(EncryptedData.Length) {}
/****Problem Create Here Below Line******/
Dim DecryptedCount As Integer = cryptoStream.Read(PlainText, 0, PlainText.Length)
/*****************************************************************/
memoryStream.Close()
cryptoStream.Close()
'Converting to string
Dim DecryptedData As String = Encoding.Unicode.GetString(PlainText, 0, DecryptedCount)
Return DecryptedData
End Function

Re: Asp.net decryption problem

The Man from U.N.C.L.E.10-Nov-09 7:15

The Man from U.N.C.L.E.

10-Nov-09 7:15

You need to set the padding on the RijndaelManaged object. Checkout this code project article which explains all about the padding issue Cryptor - Encrypt Files With Rijndael 256 bit[^]

If you have knowledge, let others light their candles at it.
Margaret Fuller (1810 - 1850)
www.JacksonSoft.co.uk

cd database [modified]

mimi84699-Nov-09 20:31

mimi8469

9-Nov-09 20:31

hello every1 , am new to programming. am doin my dissertation on cd database in C#. my software should retrieve information from a cd that is manually put into cd drive. software should copy cd info like the artist , name, song , etc into a database.

This is where am stuck. am havn problems copying the cd info successfully. now my deadline is in just 1month. This code below was workin few days ago .. now it isnt.

PLS I NEED HELP.. AM DESPERATE..

Imports System

Imports System.Collections.Generic

Imports System.ComponentModel

Imports System.Data

Imports System.Drawing

Imports System.Text

Imports System.Windows.Forms

Namespace CdRomManagement

Public Partial Class Form1
    Inherits Form

Public Sub New()

InitializeComponent()

End Sub

Private Sub axWindowsMediaPlayer1_CdromMediaChange(ByVal sender As Object, ByVal e As AxWMPLib._WMPOCXEvents_CdromMediaChangeEvent)

axWindowsMediaPlayer1.currentPlaylist = axWindowsMediaPlayer1.cdromCollection.Item(e.cdromNum).Playlist

axWindowsMediaPlayer1.Ctlcontrols.play()

'this.textBox1.Text = axWindowsMediaPlayer1.currentMedia.getItemInfo("Name");

Me.textBox1.Text = ("Name: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Name")) + Environment.NewLine

Me.textBox1.Text += ("author: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("author")) + Environment.NewLine

Me.textBox1.Text += ("Title: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Title")) + Environment.NewLine

Me.textBox1.Text += ("Album: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Album")) + Environment.NewLine

Me.textBox1.Text += ("copyright: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("copyright")) + Environment.NewLine

Me.textBox1.Text += ("Artist: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Artist")) + Environment.NewLine

Me.textBox1.Text += ("Genre: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Genre")) + Environment.NewLine

Me.textBox1.Text += ("Bitrate: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Bitrate")) + Environment.NewLine

Me.textBox1.Text += ("Abstract: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Abstract")) + Environment.NewLine

Me.textBox1.Text += ("bitRate: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("bitRate")) + Environment.NewLine

Me.textBox1.Text += ("duration: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("duration")) + Environment.NewLine

End Sub

End Class

End Namespace

modified on Wednesday, November 11, 2009 2:22 AM

Re: cd database

Pete O'Hanlon9-Nov-09 22:08

Pete O'Hanlon

9-Nov-09 22:08

mimi8469 wrote:
am doin my dissertation on cd database in C#.

You do realise that your code isn't C# don't you? I can't read the sample either because it is too spaced out - please use the <pre> tags around the sample code and format it so that it can be read.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: cd database

mimi846910-Nov-09 11:45

mimi8469

10-Nov-09 11:45

yes i know its in vb.net. but i can easily convert it to c# with a special software. I just really need help with the copying of cd contents pls. the re-formatted version is below. would really appreciate it.

<code> Imports System
<code>Imports System.Collections.Generic
<code>Imports System.ComponentModel
<code>Imports System.Data
<code>Imports System.Drawing
<code>Imports System.Text
<code>Imports System.Windows.Forms

<code>Namespace CdRomManagement </code>

<code>Public Partial Class Form1
Inherits Form

Public Sub New()

InitializeComponent()
End Sub

<code>Private Sub axWindowsMediaPlayer1_CdromMediaChange(ByVal sender As Object, ByVal e As AxWMPLib._WMPOCXEvents_CdromMediaChangeEvent) </code>

<code> axWindowsMediaPlayer1.currentPlaylist = axWindowsMediaPlayer1.cdromCollection.Item(e.cdromNum).Playlist </code>

<code>axWindowsMediaPlayer1.Ctlcontrols.play() </code>

<code>'this.textBox1.Text = axWindowsMediaPlayer1.currentMedia.getItemInfo("Name");</code>

<code> Me.textBox1.Text = ("Name: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Name")) + Environment.NewLine </code>

<code> Me.textBox1.Text += ("author: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("author")) + Environment.NewLine </code>

<code> Me.textBox1.Text += ("Title: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Title")) + Environment.NewLine </code>

<code>Me.textBox1.Text += ("Album: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Album")) + Environment.NewLine </code>

<code>Me.textBox1.Text += ("copyright: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("copyright")) + Environment.NewLine </code>

<code>Me.textBox1.Text += ("Artist: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Artist")) + Environment.NewLine </code>

<code>Me.textBox1.Text += ("Genre: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Genre")) + Environment.NewLine </code>

<code>Me.textBox1.Text += ("Bitrate: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Bitrate")) + Environment.NewLine </code>

<code>Me.textBox1.Text += ("Abstract: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("Abstract")) + Environment.NewLine </code>

<code>Me.textBox1.Text += ("bitRate: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("bitRate")) + Environment.NewLine </code>

<code> Me.textBox1.Text += ("duration: " & axWindowsMediaPlayer1.currentMedia.getItemInfo("duration")) + Environment.NewLine</code>
End Sub

End Class

End Namespace

Re: cd database

Luc Pattyn10-Nov-09 13:29

Luc Pattyn

10-Nov-09 13:29

Waw. It is looking much much better now. I wouldn't change a single character, it would only ruin the subtle balance you created.

Sigh | :sigh:

Luc Pattyn

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

Re: cd database

Mark Salsbery10-Nov-09 13:40

Mark Salsbery

10-Nov-09 13:40

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: cd database

Pete O'Hanlon10-Nov-09 22:55

Pete O'Hanlon

10-Nov-09 22:55

Well, you've got an event handler here, axWindowsMediaPlayer1_CdromMediaChange. Does it get called? Do you have a hookup on the event, e.g.

axWindowsMediaPlayer1.OnCdromMediaChange += new CdromMediaChange(axWindowsMediaPlayer1_CdromMediaChange);

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: cd database

The Man from U.N.C.L.E.10-Nov-09 7:10

The Man from U.N.C.L.E.

10-Nov-09 7:10

What error are you getting? And by the way this would probably be better in the vb forums.

If you have knowledge, let others light their candles at it.
Margaret Fuller (1810 - 1850)
www.JacksonSoft.co.uk

Re: cd database

mimi846910-Nov-09 12:17

mimi8469

10-Nov-09 12:17

am not getting any errors. its just not copying the cd contents like the artist, song , etc after the cd is put in cd drive.

Re: cd database

The Man from U.N.C.L.E.11-Nov-09 0:25

The Man from U.N.C.L.E.

11-Nov-09 0:25

Are you sure the event is being fired? Put a break point inside the event handler and step through the code. I don't see any obvious mistake in the code.

If you have knowledge, let others light their candles at it.
Margaret Fuller (1810 - 1850)
www.JacksonSoft.co.uk

Windows Taskbar Information

Tony Tullemans9-Nov-09 14:31

Tony Tullemans

9-Nov-09 14:31

Hi. I need to find the location and size of the taskbar within a Windows environment so that I can finish some coding in a windows forms configuration library that I have built based on some code that I originally got from another Code Project post. What I specifically need to know is the bounds of the Primary Screen not including the taskbar if it is displayed and locked.

Is there are .NET Framework class for that will provide this or will I need to go to the Windows API? My searches thus far in MSDN and here have not been helpful.

Any help greatly appreciated. Thanks.

Re: Windows Taskbar Information

Eddy Vluggen10-Nov-09 5:13

Eddy Vluggen

10-Nov-09 5:13

Take a look at Screen.WorkingArea[^];

Gets the working area of the display. The working area is the
desktop area of the display, excluding taskbars, docked windows, 
and docked tool bars.

I are Troll Suspicious | :suss:

Visual Studio 2008 Service Pack 1

Ejrr10859-Nov-09 8:30

Ejrr1085

9-Nov-09 8:30

Greating, How I can install Visual Studio 2008 Service Pack 1 without internet connection? I need install SQL Server 2008, but the wizard installer say me, Visual Studio 2008 Service Pack 1 is necesary. Exist any way?.

Thanks. Smile | :)

Re: Visual Studio 2008 Service Pack 1

Mark Salsbery9-Nov-09 10:26

Mark Salsbery

9-Nov-09 10:26

Edison1885 wrote:
How I can install Visual Studio 2008 Service Pack 1 without internet connection?

Use the ISO format installation package[^].

If you've never worked with iso image files, there's some info here[^].

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Visual Studio 2008 Service Pack 1

Ejrr10859-Nov-09 11:38

Ejrr1085

9-Nov-09 11:38

But it too Don't Need the internet connection like the .exe?
Because in http://www.microsoft.com/downloads/details.aspx?familyid=27673C47-B3B5-4C67-BD99-84E525B5CE61&displaylang=en[^] too say:

"Maintain Internet connectivity during the installation of the service pack until seeing the “Installation Completed Successfully” message before disconnecting."

Re: Visual Studio 2008 Service Pack 1

Mark Salsbery9-Nov-09 11:55

Mark Salsbery

9-Nov-09 11:55

It looks like they copied the same info from the online installer.

Try it!

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Visual Studio 2008 Service Pack 1

Ejrr108513-Nov-09 4:04

Ejrr1085

13-Nov-09 4:04

Yes, It worked, I use Alcohol 120% for the ISO files, Thanks very much.
But Now I have a problem installed SQL Server 2008 64x on Windows 7, the installer show me some mistakes like can't install the Database Motor.

Again Thanks very much.

Re: Visual Studio 2008 Service Pack 1

Mark Salsbery13-Nov-09 6:26

Mark Salsbery

13-Nov-09 6:26

Edison1885 wrote:
Now I have a problem installed SQL Server 2008 64x on Windows 7, the installer show me some mistakes like can't install the Database Motor.

I'm not sure about that one. I'm using SQL Server 2008 on
Windows 7 and I don't recall any install issues. I did
install it before Visual Studio so I wouldn't get 2005,
however. Is there another version installed?

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Visual Studio 2008 Service Pack 1

Ejrr108513-Nov-09 9:16

Ejrr1085

13-Nov-09 9:16

Ok, I go to install SQL Server 2008 32 bits on Windows 7.
Greatings and Thank you very much.

Re: Visual Studio 2008 Service Pack 1

Mark Salsbery13-Nov-09 9:30

Mark Salsbery

13-Nov-09 9:30

Edison1885 wrote:
I go to install SQL Server 2008 32 bits on Windows 7.

I didn't say that. I meant I use SQL Server 2008 x64 on
Windows 7 x64 with no issues. If you're on Windows 7 x86
then you'll need to use the 32-bit SQL server.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Visual Studio 2008 Service Pack 1

Ejrr108513-Nov-09 9:37

Ejrr1085

13-Nov-09 9:37

No, I have Windows 7 64 bits and I can't install perfectly SQL server 2008 64 bits.

Re: Visual Studio 2008 Service Pack 1

Mark Salsbery13-Nov-09 9:44

Mark Salsbery

13-Nov-09 9:44

Make sure you have .NET framework 3.5 SP1 installed.

If you have any previous versions/instances of SQL server
installed that you aren't using, you can remove those first
as well.

But if you want to use 32-bit SQL server go right ahead Smile | :)

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Visual Studio 2008 Service Pack 1

Ejrr108513-Nov-09 9:56

Ejrr1085

13-Nov-09 9:56

So...Perhaps is it, I tried install SQL Server 2005 64 bits, but I had too problems, I don't if is the DVD installer or another problem.
I go to remove some SQL Server 2005 component installed.

Thanks.

Re: Visual Studio 2008 Service Pack 1

Mark Salsbery13-Nov-09 10:03

Mark Salsbery

13-Nov-09 10:03

Maybe some info in the SQL Server 2008 SP1 release notes[^]

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

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