Creating A Byte() Dynamically?

Aug 6, 2009

I am working on a simple windows app that will take our TripleDESCryptoServiceProvider Key and IV from a file and use it to Encrypt and Decrypt strings, etc...This works great and has for years in a utility program, but I want an easy app that can read the Key and IV...following format in the txt file:

[KEY] {123,123,123,123,132,132,123,...}
[IV] {23,23,23,23,23,...}

And then create the Encryption Pair...Currently I have the following

clientDESCryptoServiceProvider = New _
TripleDESCryptoServiceProvider
clientDESCryptoServiceProvider.Key = New Byte() {111, 222, 333,...}
clientDESCryptoServiceProvider.IV = New Byte() {1,2,3,...}

Is there any way to pull the {111,222,333,...} and {1,2,3,...} from a text file and create the Byte() that is required?I can read the info from the text file, but cannot seem to create the right format for generating the Byte()?

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Dynamically Creating Methods For Dynamically Created Buttons?

Mar 15, 2011

I have this code.

Code:
Public Class Form1
Dim NPB As Button
Dim x As Integer

[code]....

As you can see, when I open a program from my menu, a new button will be created with text similar to this, "C:Program ". The button it self will not do anything. How can I create the method at the same time the button it is for is created? Also how can I change the text do that it gives me, for example, CCleaner.exe instead of the whole target path?

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Asp.net - Displaying Images Derived From A Byte-array Dynamically On A Page

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I'm calling a webservice that is returning an unknown quantity of images in the form of an a collection of byte arrays. (I can't change this) I need to display each image on a single aspx webpage. I'm currently using the Microsoft.Web.GeneratedImage control; [URL] to display the images.

[Code]...

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Creating A Hex Byte From An Integer?

Feb 25, 2009

I am simply trying to get the hexadecimal value of an integer (below 255) and then place this value into a byte. I have been using the hex command, but it converts the value to a string hex value. Its been driving me mad for days now as I just cant seem to sort it!

The code is as follows:
tempIntToCompare = CInt(tempValue)
tempIntToCompare = tempIntToCompare - LowTemp

[Code]....

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Mar 31, 2010

I am retrieving an image from the SQL database into Byte() variable in vb.net

Dim img as byte()=dr(0)

How do I create a file in my C:images directory from the above img.

I want to read the img and then create a file with name bimage.gif

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Creating A Byte Array Using Long Datatype?

May 4, 2009

Most of the time when we read the file stream into a byte array, we would write the following code.[code]But here we have to convert Length into an integer type (line 2 of the code above) since we cannot declare a byte array using the long data type (with option strict on). Is this a good practice? What is the work around for this problem?

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Why Does C# Define Byte+Byte=Int32 Instead Of Byte+Byte=Byte Like VB?

Aug 7, 2010

Why does C# define Byte+Byte=Int32 instead of Byte+Byte=Byte like VB?

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Nov 19, 2011

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Public Class Form1
Dim Chart2 As New System.Windows.Forms.DataVisualization.Charting.Chart
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[code]....

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Jul 21, 2011

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Dim myconn as new MySqlOps.Connection(MySqlOps.ConnectionString)

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Not sure how to approach making the connectionstrings available like above.

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Dynamically Creating Event Handlers?

Apr 9, 2010

in my project I create buttons dynamically

For i = 0 To btns.Count - 1
btns(i) = New Button()
btns(i).Text = names(i)
btns(i).Size = New Size(btns(i).Text.Length * 15, 25)

[code]....

I need to specify a handler for each button that retrieves the button text how can I do this?

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Oct 20, 2011

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MsgBox(CurPat, MsgBoxStyle.Critical)
If (CurPat = "True") Then
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[code].....

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[Code]...

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Private Sub Container_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Image As New PictureBox

[Code].....

Obviously, this isn't how I started out. But I've been trying everything I can to get it to actually display. If I have a PictureBox with exactly the same properties, it displays when I tell it to. This way, it doesn't. I even created an entire class and used that - nothing. I'm guessing it may be the fact that I used a Dim statement, but I'm still a teensy bit novice-y to certain aspects of VB (in particular, Image handling).

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I am stuck on the following:

[Code]...

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Comma, ')', or a valid expression continuation expected.

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Private Sub MakeScript()
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[code]...

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Good news, i can dynamically create the table and the cells.
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[code].....

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tb.Rows.Add(tr);
}

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Nov 11, 2010

how do i change the file permissions dynamically by creating a interface for it..?i am using vb.net..so pls tell me how to go abt with the coding..

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