Hi Tevin,

Using the below Article i have created the example.

Save and Retrieve Files from SQL Server Database using ASP.Net

Please refer below sample.

HTML

<asp:Repeater ID="rpttblFiles" runat="server">
    <ItemTemplate>
        <asp:Label ID="lblId" runat="server" Text='<%# Eval("Id") %>'></asp:Label>
        <br />
        <asp:Label ID="lblName" runat="server" Text='<%# Eval("Name") %>'></asp:Label>
    </ItemTemplate>
</asp:Repeater>
<br />
<asp:Button ID="btnSave" Text="Save" runat="server" OnClick="Save" />

Namespace

C#

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

VB.Net

Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
Imports System.IO

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        string conString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
        using (SqlConnection con = new SqlConnection(conString))
        {
            using (SqlCommand cmd = new SqlCommand("Select * From tblFiles", con))
            {
                cmd.CommandType = CommandType.Text;
                con.Open();
                this.rpttblFiles.DataSource = cmd.ExecuteReader();
                this.rpttblFiles.DataBind();
                con.Close();
            }
        }
    }
}

protected void Save(object sender, EventArgs e)
{
    foreach (RepeaterItem item in rpttblFiles.Items)
    {
        int id = int.Parse((item.FindControl("lblId") as Label).Text);
        string constring = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
        using (SqlConnection con = new SqlConnection(constring))
        {
            using (SqlCommand cmd = new SqlCommand())
            {
                cmd.CommandText = "Select Name,Data from tblFiles where id=@id";
                cmd.Parameters.AddWithValue("@id", id);
                cmd.Connection = con;
                con.Open();
                using (SqlDataReader sdr = cmd.ExecuteReader())
                {
                    sdr.Read();
                    byte[] bytes = (byte[])sdr["Data"];
                    string fileName = sdr["Name"].ToString();
                    string filePath = "~/Files/" + Path.GetFileName(fileName);
                    File.WriteAllBytes(Server.MapPath(filePath), bytes);
                }
            }
            con.Close();
        }
    }
}

VB.Net

Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Dim conString As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
        Using con As SqlConnection = New SqlConnection(conString)
            Using cmd As SqlCommand = New SqlCommand("Select * From tblFiles", con)
                cmd.CommandType = CommandType.Text
                con.Open()
                Me.rpttblFiles.DataSource = cmd.ExecuteReader()
                Me.rpttblFiles.DataBind()
                con.Close()
            End Using
        End Using
    End If
End Sub

Protected Sub Save(ByVal sender As Object, ByVal e As EventArgs)
    For Each item As RepeaterItem In rpttblFiles.Items
        Dim id As Integer = Integer.Parse((TryCast(item.FindControl("lblId"), Label)).Text)
        Dim constring As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
        Using con As SqlConnection = New SqlConnection(constring)
            Using cmd As SqlCommand = New SqlCommand()
                cmd.CommandText = "Select Name,Data from tblFiles where id=@id"
                cmd.Parameters.AddWithValue("@id", id)
                cmd.Connection = con
                con.Open()
                Using sdr As SqlDataReader = cmd.ExecuteReader()
                    sdr.Read()
                    Dim bytes As Byte() = CType(sdr("Data"), Byte())
                    Dim fileName As String = sdr("Name").ToString()
                    Dim filePath As String = "~/Files/" & Path.GetFileName(fileName)
                    File.WriteAllBytes(Server.MapPath(filePath), bytes)
                End Using
            End Using
            con.Close()
        End Using
    Next
End Sub

Output

Files will be downloaded in the Files folder inside the project folder.