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Displaying an SQL Server image
Hi,
Im trying to retrieve an image from an SQL Server image field and display it in an image box in VB.Net
Code below, help appreciated!
Andy
SQL Table is called StudentsPhotos and has:
pk - StudentID
image - StudentPhoto
Thanks
Andy
Im trying to retrieve an image from an SQL Server image field and display it in an image box in VB.Net
Code below, help appreciated!
Andy
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim images As Image
Dim conn As New SqlConnection
conn.ConnectionString = "Data Source=ANDY-PC\KILLIKA;Initial Catalog=LDCTT;Integrated Security=True"
Dim cmd As New System.Data.SqlClient.SqlCommand
cmd.Connection = conn
cmd.CommandText = "SELECT StudentPhoto FROM studentsphotos WHERE StudentID='" & Request.QueryString("sid")
cmd.CommandType = CommandType.Text
Try
conn.Open()
Dim dr As System.Data.SqlClient.SqlDataReader = cmd.ExecuteReader()
dr.Read()
images = (DirectCast(dr("image"), Byte()))
Catch ex As Exception
' BtnClearError.Visible = True
conn.Close()
End Try
conn.Dispose()
End Sub
SQL Table is called StudentsPhotos and has:
pk - StudentID
image - StudentPhoto
Thanks
Andy
ASKER
Tried these three, the all try to make use of:
image.FromStream(ms)
which gives a message:
FromStream not a member of image.
image.FromStream(ms)
which gives a message:
FromStream not a member of image.
Dear!!!
you have to do like this.
retrieve the stream
recreate the image from stream
display in Picture Box.
follow this link
http://www.codeguru.com/csharp/.net/net_asp/files/article.php/c14061/Rendering-Images-in-ASPNET-Directly-from-Your-Database.htm
you have to do like this.
retrieve the stream
recreate the image from stream
display in Picture Box.
follow this link
http://www.codeguru.com/csharp/.net/net_asp/files/article.php/c14061/Rendering-Images-in-ASPNET-Directly-from-Your-Database.htm
ASKER
I did manage to get the first link on roope's suggestions to "work" but all it does is display:
/ !ÿÿÿÿBitmap ImagePaint.PicturePBrush ŽBMŽ6(ÈèÁ¹Á¹Á¹½À·½À·½À·½À·¿Â¹¿Â¹¿Â¹¿Â¹½¿¹½¿¹½¿¹½¿¹¾¿¶»À·µ«ž•7+%0&&+',)(168B9?L@FY@Gb?LlBQqGVvIXxH^Ka„Mc‡Mc‡BW„:Ps8I\7CGC?:fa^H>>B88D86C75C75E97D86E97G;9I=;F=:F=:H?LC@NEBJC@LEBLEBHA>OCANB@NB@PDBQECL@>E97B64E97E97H<:MA?K?=I=;F:8C75D86E97MA?K?=NC?OD@PEAJ?;G85G85K<9QB?N?;O@=N?:LA=K@L@>I=;E97E97E71H:4K=7L>8J<6L>8M?9L>8J>8J>8I=7I=7M?9N@:OA;OA;MA=L@<6A?4?=1<:2=;3><4?=5@>3><3><3><3><5@>5@>6A?7B@4A?4A?4A?4A?5@>5@>5@>5@>6A?5@>4?=4?=3><Á¹Á¹Á¹¾Á¸¾Á¸¾Á¸¾Á¸¿Â¹¿Â¹¿Â¹¿Â¹½¾º½¾º½¾º½¾ºÀ¾¶º¿¶µ«›œ“7,(0'$,'&*%&# "$$*+-826I7AY=G_EOgISkGWtJZwJZwDTq=Mq8Fc1JA>KB?KB?I@=JA>KB?MDAJEBJEBJEBHC@MA?L@>L@>OCAMA?I=;F:8E97E97E97G;9J>J>K?=MA?H<:F75F75I:8M>K<:E64A20D53I:8K?=NB@L@>MA?NB@I=;E97C75C5/J<6PB8I;5J<6L>8M?9N@:N@:OA;PBM><4?=5@>2=;2=;2=;2=;5@>5@>6A?
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ASKER
Here's my code:
details.aspx:
Outputs:
image.aspx:
Outputs:
details.aspx:
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
picimage.ImageUrl = "image.aspx?sid=" & Request.QueryString("sid")
End Sub
Outputs:
image.aspx:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
' Try
If Request.QueryString("sid") IsNot Nothing Then
Dim strQuery As String = "select studentphoto from studentsphotos where studentid=@id"
Dim cmd As SqlCommand = New SqlCommand(strQuery)
cmd.Parameters.Add("@id", SqlDbType.Int).Value() = Convert.ToInt32(Request.QueryString("sid"))
Dim dt As DataTable = GetData(cmd)
If dt IsNot Nothing Then
Dim bytes() As Byte = CType(dt.Rows(0)("StudentPhoto"), Byte())
Response.Buffer = True
Response.Charset = ""
Response.Cache.SetCacheability(HttpCacheability.NoCache)
Response.BinaryWrite(bytes)
Response.Flush()
Response.End()
End If
End If
' Catch ex As Exception
' MsgBox(ex.Message)
' End Try
End Sub
Public Function GetData(ByVal cmd As SqlCommand) As DataTable
Dim dt As New DataTable
Dim strConnString As String = "Data Source=ANDY-PC\KILLIKA;Initial Catalog=LDCTT;Integrated Security=True"
Dim con As New SqlConnection(strConnString)
Dim sda As New SqlDataAdapter
cmd.CommandType = CommandType.Text
cmd.Connection = con
Try
con.Open()
sda.SelectCommand = cmd
sda.Fill(dt)
Return dt
Catch ex As Exception
Response.Write(ex.Message)
Return Nothing
Finally
con.Close()
sda.Dispose()
con.Dispose()
End Try
End Function
Outputs:
Hi,
Check the below article which exactly explains your requirement!
http://www.codeproject.com/Articles/271590/Show-an-image-saved-in-a-SQL-Table-on-an-ASP-Net-I
The code in it may be in C#, which you can easily convert it to VB - http://converter.telerik.com
Hope it helps u...
Check the below article which exactly explains your requirement!
http://www.codeproject.com/Articles/271590/Show-an-image-saved-in-a-SQL-Table-on-an-ASP-Net-I
The code in it may be in C#, which you can easily convert it to VB - http://converter.telerik.com
Hope it helps u...
Check the following links!
http://www.aspsnippets.com/Articles/Display-Images-from-SQL-Server-Database-using-ASP.Net.aspx
http://www.codeproject.com/Articles/354639/Storing-and-Retrieving-Images-from-SQL-Server-Usin
http://www.codeproject.com/Articles/10861/Storing-and-Retrieving-Images-from-SQL-Server-usin
Hope it helps u...