lyricsal.com http://www.lyricsal.com Get Lyrics for all songs Wed, 09 Nov 2011 18:19:14 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 Save and Retrieve Images from the Database using ASP.NET 2.0 and ASP.NET 3.5 http://www.lyricsal.com/save-and-retrieve-images-from-the-database-using-asp-net-2-0-and-asp-net-3-5/ http://www.lyricsal.com/save-and-retrieve-images-from-the-database-using-asp-net-2-0-and-asp-net-3-5/#comments Wed, 09 Nov 2011 18:19:14 +0000 lyricsal http://www.lyricsal.com/?p=601 At some point or the other, we as ASP.NET developers, have faced the requirement of reading and writing images to the database. We have seen loads of articles floating on the internet which discusses about storing and retrieving images from the database. Some of them are good. However, I have personally found that the solutions offered are those, where images are displayed in a ‘standalone fashion’; that is on a separate page containing only the image. What if we have to show an online form, with the person’s details and his photo along with it, or for that case, display the image in an ASP.NET server control along with other controls? In this article, we will explore how to store images in the database and then display those images along with the other server controls.
To keep the article simple and easy to understand, we will place only a few controls on the page. I have also not covered any validations associated with image control. In this article, we will only discuss how to read and write images into the database, and that would be the focus for this article. If you are interested in discussing validation and other stuff, I would suggest you to browse through the ASP.NET section of this website to view an article that discusses that.
So let us get started. We will first see how to upload an image and then display the uploaded image on the same page. You can extend this sample to create a photo album as well!! I assume you have some knowledge of creating ASP.NET 2.0 websites.
Let us start off by first creating a sample database and adding a table to it. We will call the database ‘Employee’ and the table will be called ‘EmpDetails’. This table will contain an image column along with some other columns. Run the following script in your SQL 2005 Query window (or server explorer) to construct the database and the table.
Database Script
CREATE DATABASE [Employee]
GO
USE [Employee]
GO
CREATE TABLE EmpDetails
(
empid int IDENTITY NOT NULL,
empname varchar(20),
empimg image
)
Step 1: Create a new asp.net website. In the code-behind, add the following namespace
C#
using System.Data.SqlClient;
VB.NET
Imports System.Data.SqlClient
Step 2: Drag and drop two label and one textbox control. Also drag drop a FileUpload control and a button control to upload the selected image on button click. As mentioned earlier, there are no validations performed. The source would look similar to the following:
<html xmlns=”http://www.w3.org/1999/xhtml”>
<head runat=”server”>
    <title>Save Retrieve Images</title>
</head>
<body>
    <form id=”form1″ runat=”server”>
    <div>
   
        <asp:Label ID=”lblEmpName” runat=”server” Text=”Employee Name”></asp:Label>
&nbsp;&nbsp;&nbsp;&nbsp;
        <asp:TextBox ID=”txtEName” runat=”server”></asp:TextBox>
        <br />
        <asp:Label ID=”lblImage” runat=”server” Text=”Employee Image”></asp:Label>
&nbsp;&nbsp;&nbsp;&nbsp;
        <asp:FileUpload ID=”imgUpload” runat=”server” />
        <br />
        <br />
        <asp:Button ID=”btnSubmit” runat=”server” onclick=”btnSubmit_Click”
            Text=”Submit” />
   
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp        <asp:Label ID=”lblResult” runat=”server” ForeColor=”#0066FF”></asp:Label>
    <br />
    <hr />
  
   <asp:Image ID=”Image1″ style=”width:200px” Runat=”server” />
   
   
    </div>
    </form>
</body>
</html>
Step 3: In the button click event, add the following code:
 C#
protected void btnSubmit_Click(object sender, EventArgs e)
    {
        SqlConnection connection = null;
        try
        {
            FileUpload img = (FileUpload)imgUpload;
            Byte[] imgByte = null;
            if (img.HasFile && img.PostedFile != null)
            {
                //To create a PostedFile
                HttpPostedFile File = imgUpload.PostedFile;
                //Create byte Array with file len
                imgByte = new Byte[File.ContentLength];
                //force the control to load data in array
                File.InputStream.Read(imgByte, 0, File.ContentLength);
            }
            // Insert the employee name and image into db
string conn = ConfigurationManager.ConnectionStrings ["EmployeeConnString"].ConnectionString;
            connection = new SqlConnection(conn);
            connection.Open();
string sql = “INSERT INTO EmpDetails(empname,empimg) VALUES(@enm, @eimg) SELECT @@IDENTITY”;
            SqlCommand cmd = new SqlCommand(sql, connection);
            cmd.Parameters.AddWithValue(“@enm”, txtEName.Text.Trim());
            cmd.Parameters.AddWithValue(“@eimg”, imgByte);
            int id = Convert.ToInt32(cmd.ExecuteScalar());
            lblResult.Text = String.Format(“Employee ID is {0}”, id);
        }
        catch
        {
            lblResult.Text = “There was an error”;
        }
        finally
        {
            connection.Close();
        }
    }
VB.NET
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
        Dim connection As SqlConnection = Nothing
        Try
            Dim img As FileUpload = CType(imgUpload, FileUpload)
            Dim imgByte As Byte() = Nothing
            If img.HasFile AndAlso Not img.PostedFile Is Nothing Then
                ‘To create a PostedFile
                Dim File As HttpPostedFile = imgUpload.PostedFile
                ‘Create byte Array with file len
                imgByte = New Byte(File.ContentLength – 1) {}
                ‘force the control to load data in array
                File.InputStream.Read(imgByte, 0, File.ContentLength)
            End If
            ‘ Insert the employee name and image into db
            Dim conn As String = ConfigurationManager.ConnectionStrings(“EmployeeConnString”).ConnectionString
            connection = New SqlConnection(conn)
            connection.Open()
            Dim sql As String = “INSERT INTO EmpDetails(empname,empimg) VALUES(@enm, @eimg) SELECT @@IDENTITY”
            Dim cmd As SqlCommand = New SqlCommand(sql, connection)
            cmd.Parameters.AddWithValue(“@enm”, txtEName.Text.Trim())
            cmd.Parameters.AddWithValue(“@eimg”, imgByte)
            Dim id As Integer = Convert.ToInt32(cmd.ExecuteScalar())
            lblResult.Text = String.Format(“Employee ID is {0}”, id)
        Catch
            lblResult.Text = “There was an error”
        Finally
            connection.Close()
        End Try
    End Sub
In the code above, we are creating a byte array equal to the length of the file. The byte array will store the image. We then load the image data into the array. The record containing the Employee Name and Image is then inserted into the database using the ADO.NET code. The ID inserted is returned back using the @@Identity. We will shortly use this ID and pass it as a query string parameter to the ShowImage handler. The image will then be fetched against the EmployeeID (empid).
Step 4: In order to display the image on the page, we will create an Http handler. To do so, right click project > Add New Item > Generic Handler > ShowImage.ashx. The code shown below, uses the Request.QueryString[“id”] to retrieve the EmployeeID from it. The ID is then passed to the ‘ShowEmpImage()’ method where the image is fetched from the database and returned in a MemoryStream object. We then read the stream into a byte array. Using the OutputStream.Write(), we write the sequence of bytes to the current stream and you get to see your image.
C#
<%@ WebHandler Language=”C#” Class=”ShowImage” %>
using System;
using System.Configuration;
using System.Web;
using System.IO;
using System.Data;
using System.Data.SqlClient;
public class ShowImage : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
       Int32 empno;
       if (context.Request.QueryString["id"] != null)
            empno = Convert.ToInt32(context.Request.QueryString["id"]);
       else
            throw new ArgumentException(“No parameter specified”);
       context.Response.ContentType = “image/jpeg”;
       Stream strm = ShowEmpImage(empno);
       byte[] buffer = new byte[4096];
       int byteSeq = strm.Read(buffer, 0, 4096);
       while (byteSeq > 0)
       {
           context.Response.OutputStream.Write(buffer, 0, byteSeq);
           byteSeq = strm.Read(buffer, 0, 4096);
       }       
       //context.Response.BinaryWrite(buffer);
    }
    public Stream ShowEmpImage(int empno)
    {
 string conn = ConfigurationManager.ConnectionStrings     ["EmployeeConnString"].ConnectionString;
        SqlConnection connection = new SqlConnection(conn);
        string sql = “SELECT empimg FROM EmpDetails WHERE empid = @ID”;
        SqlCommand cmd = new SqlCommand(sql,connection);
        cmd.CommandType = CommandType.Text;
        cmd.Parameters.AddWithValue(“@ID”, empno);
        connection.Open();
        object img = cmd.ExecuteScalar();
        try
        {
            return new MemoryStream((byte[])img);
        }
        catch
        {
            return null;
        }
        finally
        {
            connection.Close();
        }
    }
    public bool IsReusable
    {
        get
        {
            return false;
        }
    }
}
VB.NET
<%@ WebHandler Language=”vb” Class=”ShowImage” %>
Imports System
Imports System.Configuration
Imports System.Web
Imports System.IO
Imports System.Data
Imports System.Data.SqlClient
Public Class ShowImage
    Implements IHttpHandler
    Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
        Dim empno As Int32
        If Not context.Request.QueryString(“id”) Is Nothing Then
            empno = Convert.ToInt32(context.Request.QueryString(“id”))
        Else
            Throw New ArgumentException(“No parameter specified”)
        End If
        context.Response.ContentType = “image/jpeg”
        Dim strm As Stream = ShowEmpImage(empno)
        Dim buffer As Byte() = New Byte(4095) {}
        Dim byteSeq As Integer = strm.Read(buffer, 0, 4096)
        Do While byteSeq > 0
            context.Response.OutputStream.Write(buffer, 0, byteSeq)
            byteSeq = strm.Read(buffer, 0, 4096)
        Loop
        ‘context.Response.BinaryWrite(buffer);
    End Sub
    Public Function ShowEmpImage(ByVal empno As Integer) As Stream
        Dim conn As String = ConfigurationManager.ConnectionStrings(“EmployeeConnString”).ConnectionString
        Dim connection As SqlConnection = New SqlConnection(conn)
        Dim sql As String = “SELECT empimg FROM EmpDetails WHERE empid = @ID”
        Dim cmd As SqlCommand = New SqlCommand(sql, connection)
        cmd.CommandType = CommandType.Text
        cmd.Parameters.AddWithValue(“@ID”, empno)
        connection.Open()
        Dim img As Object = cmd.ExecuteScalar()
        Try
            Return New MemoryStream(CType(img, Byte()))
        Catch
            Return Nothing
        Finally
            connection.Close()
        End Try
    End Function
    Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
        Get
            Return False
        End Get
    End Property
End Class
Step 5: One final step. Add the following code in the button click (just above the catch block) to call the handler and display the newly inserted image from the database. In the code below, we pass the EmployeeID as a query string parameter to the Http Handler.
C#
// Display the image from the database
Image1.ImageUrl = “~/ShowImage.ashx?id=” + id;
VB.NET
‘ Display the image from the database
 Image1.ImageUrl = “~/ShowImage.ashx?id=” & id
That’s it. Run the code and check out the functionality. Just change the connection string in the web.config to point to your database. The code works fine for .jpg, .gif and .bmp images. I would encourage you to extend the sample and include validations in it. Some validations could be to check the size of the image uploaded, make sure that only images are uploaded, check the length of the Employee name, prevent the user from entering numeric and special characters, so on and so forth.
The source code of this article, both in C# and VB.NET, can be downloaded from here.
I hope this article was useful and I thank you for viewing it.
]]> http://www.lyricsal.com/save-and-retrieve-images-from-the-database-using-asp-net-2-0-and-asp-net-3-5/feed/ 0 MICHAEL JACKSON LYRICS – Music and Me http://www.lyricsal.com/michael-jackson-lyrics-music-and-me/ http://www.lyricsal.com/michael-jackson-lyrics-music-and-me/#comments Sat, 30 Jul 2011 22:23:08 +0000 lyricsal http://www.lyricsal.com/?p=594 We’ve been together for such a long time now
Music, music and me
Don’t care wether all our songs rhyme
Now music, music and me

Only know wherever I go
We’re as close as two friends can be
There have been others
But never two lovers
Like music, music and me

Grab a song and come along
You can sing your melody
In your mind you will find
A world of sweet harmony

Birds of a feather will fly together
Now music, music and me
Music and me

]]> http://www.lyricsal.com/michael-jackson-lyrics-music-and-me/feed/ 0 MICHAEL JACKSON LYRICS – Morning Glow http://www.lyricsal.com/michael-jackson-lyrics-morning-glow/ http://www.lyricsal.com/michael-jackson-lyrics-morning-glow/#comments Sat, 30 Jul 2011 22:20:50 +0000 lyricsal http://www.lyricsal.com/?p=590 Morning glow, morning glow
Starts to glimmer when you know
Winds of change are set to blow
And sweep this whole land through
Morning glow is long past due

Morning glow fill the earth
Come on shine far all you’re worth
We’ll be present at the birth
Of all faith looking new
Morning glow is long past due

Oh oh morning glow
I’d like to help you grow
You should have started long ago

Morning glow all days long
For we sing tomorrow’s song
Never knew we could be so strong
But now it’s very clear
Morning glow is almost here

Oh oh morning glow
I’d like to help you grow
We should have started long ago

Morning glow all of your life
We can make the new day right
All the bad songs of the night
Will fade into the past
Morning glow is here at last

]]> http://www.lyricsal.com/michael-jackson-lyrics-morning-glow/feed/ 0 MICHAEL JACKSON LYRICS – Euphoria http://www.lyricsal.com/michael-jackson-lyrics-euphoria/ http://www.lyricsal.com/michael-jackson-lyrics-euphoria/#comments Sat, 30 Jul 2011 22:18:35 +0000 lyricsal http://www.lyricsal.com/?p=586 Love, Love, Love,Love
Love, Love, Love,Love
Love, Love, Love,Love
Love, Love, Love,Love
Euphoria, Euphoria, Euphoria,Euphoria

E-U-P-H-O-R-I-A
That’s the new word for today
E-U-P-H-O-R-I-A
It’s very easy to say
Say Euphoria and you’ll feel fine from the start
You can close your eyes
And see the world with your heart
Do what you wish, be what you are
What a victorious thrill
Wearing a smile, all of the while
Feeling the world standing still
Watch raindbows glow rest on a bed of flowers
Then dial a star
Anything’s in your powers

E-U-P-H-O-R-I-A
Full euphoria
Knowing no ills, needing no pills
Singing a rock and roll hymn
Feeling glorious, full of love
Fine from the start
You can close your eyes
And see the world with your heart
How good to be happy and free
Living the way that you choose
Healthly and clean
Can’t understand anyone having the blues
Euphoria never to feel frustration
How great to give love without invitation
Euphoria, euphoria
Long as we love each other
Euphoria, euphoria
Living for one another
Euphoria, euphoria
That’s one word for heaven
Euphoria, euphoria
living your live as Heaven

]]> http://www.lyricsal.com/michael-jackson-lyrics-euphoria/feed/ 0 MICHAEL JACKSON LYRICS – Johnny Raven http://www.lyricsal.com/michael-jackson-lyrics-johnny-raven/ http://www.lyricsal.com/michael-jackson-lyrics-johnny-raven/#comments Sat, 30 Jul 2011 22:16:13 +0000 lyricsal http://www.lyricsal.com/?p=582 Free and untamed that’s how I’ve grown
(It’s Johnny Raven)
Settling down ain’t my nature
Roots I’ll never own
(It’s Johnny Raven)
Oh your smile
But tell me, ain’t your child
How can you cage a bird
Born to be wild

Refrain
I’m Johnny Raven
(He’s Johnny Raven)
by and by (By and By)
Oh, I’m going to leave your nest girl
Another nest to try
Ooh Johnny Raven
Girl you know I shouldn’t have loved you
Yeah, but I gotta leave you
When my restless heart says goodbye

Look at you little girl
You feel love so deep
(It’s Johnny Raven)
If I could change in a second
I’d change for you like that
Stay right here for keeps
(It’s Johnny Raven)
But I’m home free for no thrills
Stray I will
Seems I gotta need one girl
Never can feel

Refrain
Yeah I’m Johnny Raven
(It’s Johnny Raven)
by and by
Oh, I’m going to leave yoour nest girl
Another nest to try
Ooh Johnny Raven
Girl you know I shouldn’t have loved you
Yeah, but I gotta leave you
When my restless heart says goodbye

Everybody knows my name
I’m Johnny Raven
(It’s Johnny Raven)
yeah, yeah by abd by
(It’s Johnny Raven)
I’m gonna fly
When you cry part of me’s gonna die

]]> http://www.lyricsal.com/michael-jackson-lyrics-johnny-raven/feed/ 0 MICHAEL JACKSON LYRICS – Doggin’ Around http://www.lyricsal.com/michael-jackson-lyrics-doggin-around/ http://www.lyricsal.com/michael-jackson-lyrics-doggin-around/#comments Sat, 30 Jul 2011 22:13:41 +0000 lyricsal http://www.lyricsal.com/?p=578 You better stop
Your doggin’ around
Yeah, yeah, yeah, yeah
‘Cause if you don’t stop
I’m gonna have to put you down

I can’t take it much longer
My heart’s getting weak
It’s not getting any stronger
You keep me so upset
My head’s in a whirl
But if you wanna be, yeah
Be my girl

You better stop
Your doggin’ around
You know what I’m talkin’ about
Yeah, yeah, yeah
If you don’t stop
I’m gonna have to put you down
Baby, yes I do, yes I do
Gonna, gonna put you down
You’re doggin’ me [repeat 7x]
I’m gonna have to put you down Yeah

Yes you do, you’re doggin’ me [repeat 3x]
You better stop
Your doggin’ me around

]]> http://www.lyricsal.com/michael-jackson-lyrics-doggin-around/feed/ 0 MICHAEL JACKSON LYRICS – Too Young http://www.lyricsal.com/michael-jackson-lyrics-too-young/ http://www.lyricsal.com/michael-jackson-lyrics-too-young/#comments Sat, 30 Jul 2011 21:40:52 +0000 lyricsal http://www.lyricsal.com/?p=574 They try to tell us we’re too young
Too young to really be in love

They say that love’s a word
A word we’ve only heard
But can’t begin to know the meaning of

And yet we’re not too young to know
This love will last though years may go

And then someday they may recall
We were not to young at all

They try to tell us we’re too young
Too young to really be in love

And yet we’re not too young to know
This love will last though years may go
And then someday they may recall
We were not to young at all

]]> http://www.lyricsal.com/michael-jackson-lyrics-too-young/feed/ 0 MICHAEL JACKSON LYRICS – Happy http://www.lyricsal.com/michael-jackson-lyrics-happy/ http://www.lyricsal.com/michael-jackson-lyrics-happy/#comments Sat, 30 Jul 2011 21:38:38 +0000 lyricsal http://www.lyricsal.com/?p=571 Sadness had been close as my next of kin
Then Happy came one day, chased my blues away
My life began when Happy smiled
Sweet, like candy to a child
Stay here and love me just a while
Let sadness see what Happy does
Let Happy be where Sadness was

Happy, that’s you
You made my life brand new
Lost as a little lam was I, till you came in
My life began when Happy smiled
Sweet, like candy to a child
Stay here and love me just a while
Let sadness see what Happy does
Let Happy be where Sadness was
(Till now)

Where have I been?
What lifetime was I in?
Suspended between time and space
Lonely until Happy came smiling up at me
Sadness had no choice but to flee
I said a prayer so silently
Let Sadness see what Happy does
Let Happy be where Sadness was
Till now

Happy, yeah yeah
Happy, oehoe happy

happy oh yeah Happy
[fade out]

]]> http://www.lyricsal.com/michael-jackson-lyrics-happy/feed/ 0 MICHAEL JACKSON LYRICS – All The Things You Are http://www.lyricsal.com/michael-jackson-lyrics-all-the-things-you-are/ http://www.lyricsal.com/michael-jackson-lyrics-all-the-things-you-are/#comments Sat, 30 Jul 2011 21:36:14 +0000 lyricsal http://www.lyricsal.com/?p=566 You are the promised kiss of springtime
That makes the lonely winter seem long
You are the breathless hush of evening
That trembles on the brink of a lovely song
You are the angel glow that lights a star
The dearest things I know are what you are
Some day my happy arms will hold you
And some day I’ll know that moment divine
When all the things you are, are mine

You are the angel glow that lights a star
The dearest things I know are what you are
Some, some, some, some, day
My happy arms will hold you
And some day I’ll know that moment divine
When all the things you are, are mine
yeah yeah, all the things you are, are mine
all the things you are, got to be mine
Some day you are, are mine
all the things you are, got to be mine
all the things you are, got to be mine
[fade out]

]]> http://www.lyricsal.com/michael-jackson-lyrics-all-the-things-you-are/feed/ 0 MICHAEL JACKSON LYRICS – Up Again http://www.lyricsal.com/michael-jackson-lyrics-up-again/ http://www.lyricsal.com/michael-jackson-lyrics-up-again/#comments Sat, 30 Jul 2011 21:34:13 +0000 lyricsal http://www.lyricsal.com/?p=562 Into each life some rain falls
Then comes the snow
But after the snow
The flowers will grow
Girl when my life got stormy
You stayed for the ride
You stayed my side
You make the sun shine

[Refrain]
I’m up again I never let you down
Nothing’s ever gonna stop me now
Up again I never let you down
I love you

This Humpty Dumpty’s lucky
He’s had his fall
But after it all
He brushed himself off
Knowing how much you loved me
I made one more try
I reached for the sky
And I made it this time

[Refrain]
I’m up again I never let you down
Nothing’s ever gonna stop me now
Up again I never let you down
I love you

]]> http://www.lyricsal.com/michael-jackson-lyrics-up-again/feed/ 0