To implement this concept you need to follow the below steps :
Step1 :
First you need to design a table in Sql Database to insert and retrieve the records from database.
Step2:
Create a new Asp.net website in Visual Studio and write the following html
code in the design part of the Default.aspx page.
Source code:
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
.modalBackground
{
background-color: Gray;
filter: alpha(opacity=80);
opacity: 0.8;
z-index: 10000;
}
.GridviewDiv {font-size:
100%; font-family:
'Lucida Grande', 'Lucida
Sans Unicode', Verdana, Arial, Helevetica, sans-serif; color: #303933;}
Table.Gridview{border:solid 1px #df5015;}
.Gridview th{color:#FFFFFF;border-right-color:#abb079;border-bottom-color:#abb079;padding:0.5em 0.5em 0.5em 0.5em;text-align:center}
.Gridview td{border-bottom-color:#f0f2da;border-right-color:#f0f2da;padding:0.5em 0.5em 0.5em 0.5em;}
.Gridview tr{color: Black; background-color: White;
text-align:left}
:link,:visited { color: #DF4F13; text-decoration:none }
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:FileUpload ID="fileUpload1"
runat="server"
/><br />
<asp:Button ID="btnUpload" runat="server" Text="Upload" onclick="btnUpload_Click" />
</div>
<div>
<asp:GridView ID="gvDetails" CssClass="Gridview" runat="server" AutoGenerateColumns="false" DataKeyNames="FilePath">
<HeaderStyle BackColor="#df5015" />
<Columns>
<asp:BoundField DataField="Id" HeaderText="Id" />
<asp:BoundField DataField="FileName" HeaderText="FileName" />
<asp:TemplateField HeaderText="FilePath">
<ItemTemplate>
<asp:LinkButton ID="lnkDownload" runat="server" Text="Download" OnClick="lnkDownload_Click"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
Step3:
Now open the Default.aspx.cs page and write the following source code.
Default.aspx.cs code :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.IO;
public partial class _Default :
System.Web.UI.Page
{
SqlConnection con = new
SqlConnection("Data
Source=sridhar;Initial Catalog=student;User ID=sa;Password=123");
protected void
Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindGridviewData();
}
}
private void
BindGridviewData()
{
con.Open();
SqlCommand cmd = new
SqlCommand("select
* from FilesTable", con);
SqlDataAdapter da = new
SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
gvDetails.DataSource = ds;
gvDetails.DataBind();
}
protected void
btnUpload_Click(object sender, EventArgs e)
{
string filename = Path.GetFileName(fileUpload1.PostedFile.FileName);
fileUpload1.SaveAs(Server.MapPath("Files/"
+ filename));
con.Open();
SqlCommand cmd = new
SqlCommand("insert
into FilesTable(FileName,FilePath) values(@Name,@Path)", con);
cmd.Parameters.AddWithValue("@Name",
filename);
cmd.Parameters.AddWithValue("@Path",
"Files/" + filename);
cmd.ExecuteNonQuery();
con.Close();
BindGridviewData();
}
protected void
lnkDownload_Click(object sender, EventArgs e)
{
LinkButton lnkbtn = sender as LinkButton;
GridViewRow gvrow = lnkbtn.NamingContainer as GridViewRow;
string filePath =
gvDetails.DataKeys[gvrow.RowIndex].Value.ToString();
Response.ContentType = "image/jpg";
Response.AddHeader("Content-Disposition",
"attachment;filename=\"" +
filePath + "\"");
Response.TransmitFile(Server.MapPath(filePath));
Response.End();
}
}
Step4:
Now build the Solution and Debug it for the output.
OutPut :
Thank you!
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