Hi makumbi,

Using the article i have created the example.

Upload Save Retrieve and Play MP4 Video files with live streaming from Database in ASP.Net using C# and VB.Net

HTML

<asp:GridView runat="server" ID="GridView1" AutoGenerateColumns="false">
    <Columns>
        <asp:BoundField DataField="Name" HeaderText="File Name" />
        <asp:TemplateField>
            <ItemTemplate>
                <a href='<%# Eval("Id", "File.ashx?Id={0}") %>' class="player" style="height: 300px; width: 500px; display: block"></a>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>
<br />
<script src="FlowPlayer/flowplayer-3.2.12.min.js" type="text/javascript"></script>
<script type="text/javascript">
    flowplayer("a.player", "FlowPlayer/flowplayer-3.2.16.swf", {
        plugins: { pseudo: { url: "FlowPlayer/flowplayer.pseudostreaming-3.2.12.swf" } },
        clip: { provider: 'pseudo', autoPlay: true }
    });
</script>

Namespaces

C#

using System.Configuration;
using System.Data.SqlClient;

VB.Net

Imports System.Configuration
Imports System.Data.SqlClient

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        this.BindGrid();
    }
}

private void BindGrid()
{
    string strConnString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
    using (SqlConnection con = new SqlConnection(strConnString))
    {
        using (SqlCommand cmd = new SqlCommand())
        {
            cmd.CommandText = "SELECT * FROM tblFiles WHERE ID BETWEEN 1 AND 4";
            cmd.Connection = con;
            con.Open();
            GridView1.DataSource = cmd.ExecuteReader();
            GridView1.DataBind();
            con.Close();
        }
    }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Me.BindGrid()
    End If
End Sub

Private Sub BindGrid()
    Dim strConnString As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
    Using con As SqlConnection = New SqlConnection(strConnString)
        Using cmd As SqlCommand = New SqlCommand()
            cmd.CommandText = "SELECT * FROM tblFiles WHERE ID BETWEEN 1 AND 4"
            cmd.Connection = con
            con.Open()
            GridView1.DataSource = cmd.ExecuteReader()
            GridView1.DataBind()
            con.Close()
        End Using
    End Using
End Sub

Handler

C#

<%@ WebHandler Language="C#" Class="File" %>

using System;
using System.Web;
using System.Data.SqlClient;
using System.Configuration;

public class File : IHttpHandler
{

    public void ProcessRequest(HttpContext context)
    {
        int id = int.Parse(context.Request.QueryString["Id"]);
        byte[] bytes;
        string contentType;
        string strConnString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
        string name;
        using (SqlConnection con = new SqlConnection(strConnString))
        {
            using (SqlCommand cmd = new SqlCommand())
            {
                cmd.CommandText = "SELECT Name, Data, ContentType FROM tblFiles WHERE Id=@Id";
                cmd.Parameters.AddWithValue("@Id", id);
                cmd.Connection = con;
                con.Open();
                SqlDataReader sdr = cmd.ExecuteReader();
                sdr.Read();
                bytes = (byte[])sdr["Data"];
                contentType = sdr["ContentType"].ToString();
                name = sdr["Name"].ToString();
                con.Close();
            }
        }
        context.Response.Clear();
        context.Response.Buffer = true;
        context.Response.AppendHeader("Content-Disposition", "attachment; filename=" + name);
        context.Response.ContentType = contentType;
        context.Response.BinaryWrite(bytes);
        context.Response.End();
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }

}

VB.Net

<%@ WebHandler Language="VB" Class="File" %>

Imports System
Imports System.Web
Imports System.Data.SqlClient
Imports System.Configuration

Public Class File : Implements IHttpHandler

    Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
        Dim id As Integer = Integer.Parse(context.Request.QueryString("Id"))
        Dim bytes As Byte()
        Dim contentType As String
        Dim strConnString As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
        Dim name As String
        Using con As SqlConnection = New SqlConnection(strConnString)
            Using cmd As SqlCommand = New SqlCommand()
                cmd.CommandText = "SELECT Name, Data, ContentType FROM tblFiles WHERE Id=@Id"
                cmd.Parameters.AddWithValue("@Id", id)
                cmd.Connection = con
                con.Open()
                Dim sdr As SqlDataReader = cmd.ExecuteReader()
                sdr.Read()
                bytes = CType(sdr("Data"), Byte())
                contentType = sdr("ContentType").ToString()
                name = sdr("Name").ToString()
                con.Close()
            End Using
        End Using

        context.Response.Clear()
        context.Response.Buffer = True
        context.Response.AppendHeader("Content-Disposition", "attachment; filename=" & name)
        context.Response.ContentType = contentType
        context.Response.BinaryWrite(bytes)
        context.Response.End()
    End Sub

    Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
        Get
            Return False
        End Get
    End Property

End Class