VS 2005 Convert System.byte[] To Image?

Jun 30, 2010

I am storing images in a database. When I call the function to get a picture it returns an array of system.byte[]. How do I convert this to an image?I've searched for information, and found this page among others. But the code given doesn't work for me.

'Byte[] to image
imgMemoryStream = New IO.MemoryStream(imgByteArray)
myImage = Drawing.Image.FromStream(imgMemoryStream)

[code].....

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Convert Image To Byte Array?

Jun 10, 2010

I'm trying to convert a image into a byte array for use in a msacces db.THis is the code I use but I can;'t get the byte array?

Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

[code]....

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Convert Between An Image Object And Byte Array?

Apr 10, 2009

How do I convert between an image object and Byte Array?

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Convert Datatable Byte Array To Image?

Mar 6, 2009

I've created a new access 2007 database + added a OLE Object field, that i've then pasted images into.in vb2008 I've connected to the database + put the table into a datatable. so far it works ok.when i try to convert the byte array to an image, it causes an error:

'A first chance exception of type 'System.ArgumentException' occurred in System.Drawing.dll'heres the code i'm using[code]....

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Convert Byte Array Into Image Itself And Show It In PictureBox1?

Feb 28, 2012

I have a Problems Regarding with the IMAGE I create a Program That save Information of END USERS including Image...but the Image will save into Bytes.....and I have no Problem in that as you seen below.....

[code]...

This is My Problem i have this Search Engine that can Search information that can show the information needed from the database....... it works Nicely but I don't know how to show/Retrieve the Image from Bytes to Image itself and show it into the PictureBox1.. the code shown Below..

[code]....

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[2008] Convert Datatable Byte Array To Image?

Mar 6, 2009

i've created a new access 2007 database + added a OLE Object field, that i've then pasted images into.

in vb2008 i've connected to the database + put the table into a datatable. so far it works ok.

when i try to convert the byte array to an image, it causes an error:

'A first chance exception of type 'System.ArgumentException' occurred in System.Drawing.dll'

heres the code i'm using:

vb

Dim arr() As Byte = DirectCast(record.Item(5), Byte())
pic.Image = Image.FromStream(New IO.MemoryStream(arr))

its loading the byte array properly, but the Image.FromStream line causes the error. i've used this method before with an earlier access database + it works.

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Cast Object Of Type 'System.Byte[]' To Type 'System.Drawing.Image'?

Mar 15, 2010

I am using VB2008 in VS Prof and try to convert at Byte arry stored as a Image format in Sql2000 database.

Code:
Using acnLoc As New SqlConnection(CSLoc)
acnLoc.Open()
Dim G As SqlCommand = New SqlCommand("SELECT [SignatureData] FROM [MyTable] where [OID]=@OID", acnLoc)
G.Parameters.Add("@OID", SqlDbType.Int).Value =Cint(bxShipmentno.Text.Trim())
dim P= G.ExecuteScalar() 'returns a system arry

[Code]...

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[2005] Binding A Picturebox.Image To Byte()?

Feb 11, 2009

I have a database that stores images as bytes, per Here

What I want to do is bind the image of a picture box to that value through my binding source. This is what I have:

ProductImagePictureBox.DataBindings.Add("Image", productBindingSource, "productImage", True)

And nothing ever shows up. I figure it's because I am not doing something like Image.FromStream(), but I also don't know how to integrate something like that into that line. I could just re do the image box on row enter rather than bind, but I don't know how to manually pull the data from the binder.

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Unable To Cast Object Of Type '<SkipIterator>d__4d`1[System.Byte]' To Type 'System.Byte[]'?

Jun 25, 2010

I don't understand that error that occurs on the second line of code below. I'm trying to skip over the first 18 bytes of a byte array that I'm accessing from a c# dll into a local vb.net byte array

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Change Byte() To Structs For Readability And Convert Struct To Byte Stream For Socket Send()

Dec 8, 2009

I just converted the following code from c# to vb.net. It is functional and works correctly with my company's firmware/devices. My next challenge. Previous serialport code used much more readable structs which where then converted (after building a packet) into byte() automatically as part of the serialport encoding. (this is my understanding)How could I

1. morph byte arrays 'ToSocket' and 'ToMTP' below into structs and

2. convert into byte array for Socket.BeginSend(byte(),.....) to stream out to remote devices?


Imports System.ComponentModel
Imports System.Text
Imports System.Net.Sockets

[Code]....

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Convert An Object Form System.Drawing.Graphics To System.Drawing.Image?

May 23, 2009

Is it possible to convert an object form System.Drawing.Graphics to System.Drawing.Image?

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Byte() (System.Byte[]) Versus Binary (System.Data.Linq.Binary)?

May 1, 2009

i have a table in sql server with some fields set as Byte() (System.Byte[]) when i import them in my application to be used with linq they are converted in Binary (System.Data.Linq.Binary)why is that?is there a way to prevent this wrong translaton???if i update the database how can i update the classes that has been craeted in visual studio2008?

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Convert A IntPrt To Byte Array (Byte())?

Nov 18, 2010

How could you convert a IntPrt to a Byte Array (Byte()) ?

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Convert Byte Array Into A String Like So Dim Byt As Byte()?

Jan 25, 2011

I have a byte array that I convert into a string like so Dim byt As Byte() = New Byte(255) {} s = New String(Encoding.ASCII.GetChars(byte))My question is when I look at the string in a debuger its clearly a normal string but when I compare it to what I know its supposed to be it doesnt equal. So i did a quick check and for some reason its return a string thats the length of 256 characters. So i did a s.trim and it still is 256 characters long.

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VS 2005 Convert A PDF To An Image To Display In App

Dec 11, 2009

Can anyone shed some light on the usage: pdfbox.PDFToImage I want to convert a PDF to an image to dispalay in my app. I then want to add some items with GDI+ and then print the image.

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Convert System.Drawing.Graphics To System.Drawing.Image

Jan 20, 2010

I have a System.Drawing.Graphics g, which draw something in a PictureBox. Now I want to export this pGraphics to a new System.DrawingImage pImage (or Bitmap). But how?

Dim pImage As Bitmap
Dim g As Graphics
g = Graphics.FromImage(b)

[Code].....

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Convert System.Drawing.Graphics To System.Drawing.Image?

Mar 10, 2010

I have two graphics I'm trying to superimpose into one, then display in a DataGridViewImage cell...The Value property of a DataGridViewImage is an Image type.

Dim Image1 As System.Drawing.Image = imgl_Imagelist1.Images(0)
Dim Image2 As New Bitmap(imgl_ImageList2.Images(0))
Dim DualGraphic As Graphics = Graphics.FromImage(Image1)

[code].....

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Subsonic Invalid Cast From System.Int32 To System.Byte[]

Feb 22, 2010

Subsonic 2.2 is throwing the error

subsonic Invalid cast from System.Int32 to System.Byte[]

When I do the following

If template.Content Is Nothing Then
MsgBox("Blank Document")
Else
MsgBox("Document Present")
End If

"template" is a SubSonic object of which it's "content" field is of type Byte()

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Convert Java Byte Array To .NEt Byte Array

Mar 24, 2010

I am trying to Convert a data field stored as IMAGE ( SQL Server 2000) using Java to a byte array using VB.NET Java uses signed numbers for a Byte array where as VB dosent. Can somone point me to how I can covert java byte array to VB byte array?

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Forms :: Display Picture In Picturebox1 - Shows This Message, Unable To Cast Object Of Type 'System.DBNull' To Type 'System.Byte[]'?

Dec 24, 2009

Now I want to display picture in picturebox1.To do this I use this codes, but it does not display picture

on this line: Dim arrPicture() As Byte = CType(dt2.Rows(0)("img_path"), Byte())

it shows this message,

Unable to cast object of type 'System.DBNull' to type 'System.Byte[]'.[code]......

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Convert .net Byte To Php?

Aug 14, 2009

I have the following code in VB.net Dim bytIV() As Byte = {121, 241, 10, 1, 132, 74, 11, 39, 255, 91, 45, 78, 14, 211, 22, 62} I'm trying to convert it to php. $iv = array(121, 241, 10, 1, 132, 74, 11, 39, 255, 91, 45, 78, 14, 211, 22, 62);

[Code]...

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Unable To Cast Object Of Type 'System.Byte[]' To Type 'System.IConvertible'

Jun 5, 2010

i get the error in following code

Function ReadFile(ByVal sPath As String) As Byte
Dim data As Byte
data = Nothing

[Code].....

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Unable To Cast Object Of Type 'System.String' To Type 'System.Byte[]'

Nov 25, 2009

I has the following code in my vb.net:

Code: Dim sql2 As String = " SELECT * FROM Etiqa_Image_Details where TransmissionID='" & Request("id") & "' " With objDB.OpenDataReader(sql2) While .Read()
If .Item("ImageType") = "Invoice" Then imgInv.ImageUrl =

[code]....

However,i get this error while retrieving the image path(Varchar in sql server 2000) and display the image on the web.

Unable to cast object of type 'System.String' to type 'System.Byte[]'.

Actually in my database, i am just storing the image path where the image store...And now when I browsing the web, it should get the image path out and find the image through the image path and then display on the web....

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Can Convert An Integer To A Byte

Aug 12, 2009

Can any one tell me how I can convert an integer to a byte. I have a five digit interger and would like to have it as two bytes.

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Convert Byte Array To Pdf Using Asp.net?

Apr 19, 2011

How to convert byte array to pdf using asp.net.

my code is

Response.Clear()
Response.ContentType = "application/pdf"
Response.AppendHeader("Content-Disposition", "inline;filename=data.pdf")

[Code].....

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Convert Byte To ASCII

Jun 14, 2006

How to convert byte array to ASCII in VB.NET System.Text.Encoding.ASCII.Getstring(y) it gives the data like 52414D41 . but i need "RAMA" instead of 52414D41.

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Convert Char To Byte?

Jan 25, 2010

My application is reading in data from the serial port. The packet format uses 1 byte to tell the data length. The problem is as I am reading each byte in as a char when I try to get the value of the received character (using Asc(cRxd)) it only works up to values of 127, any bytes received that are over 127 are received as 63. I noticed that this was the default parity replace value, but I have parity.none set and I also changed the parity replace value. The received byte is always 63. I have tried reading the data using .ReadByte but this gives the same result - only works on values below 128.

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Convert Hex String To Byte?

Jun 10, 2009

I've tried CByte(hex) and Convert.ToByte(hex) neither work :/

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Convert Number Into Byte?

Sep 7, 2009

I have a problem using FJ Core to convert image into byte.

I have a code written in C# which works fine.

The problem is when im running it in VB i get the exception: Arithmetic operation resulted in an overflow

It works fine in C# to convert a negative number into byte For Ex. (byte)-90024 = 88

But when i try to do it in VB i get the exception.[code]...

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How To Convert Byte To Bitmap

Oct 7, 2009

How to convert byte to bitmap
Dim ScreenshotBytes As Byte() = MySQLExecuteReader("SELECT Screenshot FROM Connections WHERE Connection='EC8C35F2'", "Screenshot")
Dim ScreenshotMemoryStream As System.IO.MemoryStream = New System.IO.MemoryStream(ScreenshotBytes)
[Code] .....

But I don't know how to get the bytes from the mysql server:
Public Function MySQLExecuteReader(ByRef StrCmdText As String, ByRef StrColumn As String)
'On Error Resume Next
Dim MySQLComm As New MySqlCommand(StrCmdText, Connection)
[Code] .....

I want to return the byte from the column: "Screenshot" which is an image (MEDIUMBLOB) so I can use it as a background for a picturebox.

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