Wednesday, December 28

JQuery lightbox image slideshow gallery in asp.net

Introduction:

In this article I will explain how to create lightbox image slideshow in asp.net using JQuery.


Description: 

In previous post I explained about Ajax SlideshowExtender sample to display images slideshow. Now in this article I will explain how to create lightbox image slideshow in asp.net using JQuery. In many websites generally we will see different types of slideshows like whenever we click on image that is automatically open with lightbox effect and we have a chance to see all the remaining images by press next or previous options in slideshow. All these Slideshows are implemented by using JQuery plugins. After seen those slideshows I decided to write post to use JQuery plugins to implement beautiful slideshown in asp.net. 


To implement this one I am using  previous post insert and display images from folder based on imagepath in database because in that post I explained clearly how to insert images into our project folder and insert images path into database and display images in gridview from images folder based on Images path in database.
To implement slideshow concept first design table in your database as shown below
Column Name
Data Type
Allow Nulls
ID
int(set identity property=true)
No
ImageName
varchar(50)
Yes
Description
nvarchar(max)
Yes

After completion of table creation Open Visual Studio and create new website after that right click on your website and add new folder and give name as SlideImages because here I used same name for my sample if you want to change folder name then you need to change the Slideimages folder name in your code behind also after that write the following code in your aspx page  


<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Display Images Slideshow in asp.net using JQuery</title>
<link rel="stylesheet" href="lightbox.css" type="text/css" media="screen" />
<script type="text/javascript" src="prototype.js"></script>
<script type="text/javascript" src="scriptaculous.js?load=effects"></script>
<script type="text/javascript" src="lightbox.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<table align="center">
<tr>
<td colspan="2" height="200"></td>
</tr>
<tr>
<td>
Upload Image:
</td>
<td>
<asp:FileUpload ID="fileuploadimages" runat="server" />
</td>
</tr>
<tr>
<td>
Enter Image Desc:
</td>
<td>
<asp:TextBox ID="txtDesc" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
</td>
<td>
<asp:Button ID="btnSubmit" runat="server" Text="Submit" onclick="btnSubmit_Click" />
</td>
</tr>
<tr>
<td colspan="2">
<asp:DataList ID="dlImages" runat="server" RepeatColumns="3" CellPadding="5">
<ItemTemplate>
<a id="imageLink" href='<%# Eval("ImageName","~/SlideImages/{0}") %>' title='<%#Eval("Description")%>' rel="lightbox[Brussels]" runat="server" >
<asp:Image ID="Image1" ImageUrl='<%# Bind("ImageName", "~/SlideImages/{0}") %>' runat="server"Width="112" Height="84" />
</a>
</ItemTemplate>
<ItemStyle BorderColor="Brown" BorderStyle="dotted" BorderWidth="3px" HorizontalAlign="Center"
VerticalAlign="Bottom" />
</asp:DataList>
</td>
</tr>
</table>
<br />
</div>
</form>
</body>
</html>
If you observe above code in header section I added some of script files and css file by using those files we will get lightbox effect slideshow. To get those files download attached sample code and use it in your application.

Another thing here we need to know is href link

<a href='<%# Eval("ImageName","~/SlideImages/{0}") %>' id="imageLink" title='<%#Eval("Description")%>' rel="lightbox[Brussels]" runat="server" >
In above tag I added rel="lightbox" this tag is used to active lightbox title this attribute is used to display image caption. If we have set of related images to group we need to include group name in between square brackets in rel attribute like rel="lightbox[Brussels]"

After completion of aspx page design add following namespaces in code behind 

C# Code

using System;
using System.Data;
using System.Data.SqlClient;
using System.IO;
After add namespace write the following code


SqlConnection con = new SqlConnection("Data Source=SureshDasari;Initial Catalog=MySampleDB;Integrated Security=true");
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
BindDataList();
}
}
protected void BindDataList()
{
con.Open();
//Query to get ImagesName and Description from database
SqlCommand command = new SqlCommand("SELECT ImageName,Description from SlideShowTable", con);
SqlDataAdapter da = new SqlDataAdapter(command);
DataTable dt = new DataTable();
da.Fill(dt);
dlImages.DataSource = dt;
dlImages.DataBind();
con.Close();
}

protected void btnSubmit_Click(object sender, EventArgs e)
{
//Get Filename from fileupload control
string filename = Path.GetFileName(fileuploadimages.PostedFile.FileName);
//Save images into SlideImages folder
fileuploadimages.SaveAs(Server.MapPath("SlideImages/" + filename));
//Open the database connection
con.Open();
//Query to insert images name and Description into database
SqlCommand cmd = new SqlCommand("Insert into SlideShowTable(ImageName,Description) values(@ImageName,@Description)", con);
//Passing parameters to query
cmd.Parameters.AddWithValue("@ImageName", filename);
cmd.Parameters.AddWithValue("@Description", txtDesc.Text);
cmd.ExecuteNonQuery();
//Close dbconnection
con.Close();
txtDesc.Text = string.Empty;
BindDataList();
}

VB.NET Code

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

Partial Class _Default
Inherits System.Web.UI.Page
Private con As New SqlConnection("Data Source=SureshDasari;Initial Catalog=MySampleDB;Integrated Security=true")
Protected Sub Page_Load(ByVal sender As ObjectByVal e As EventArgs) Handles Me.Load
If Not IsPostBack Then
BindDataList()
End If
End Sub
Protected Sub BindDataList()
con.Open()
'Query to get ImagesName and Description from database
Dim command As New SqlCommand("SELECT ImageName,Description from SlideShowTable", con)
Dim da As New SqlDataAdapter(command)
Dim dt As New DataTable()
da.Fill(dt)
dlImages.DataSource = dt
dlImages.DataBind()
con.Close()
End Sub

Protected Sub btnSubmit_Click(ByVal sender As ObjectByVal e As EventArgs)
'Get Filename from fileupload control
Dim filename As String = Path.GetFileName(fileuploadimages.PostedFile.FileName)
'Save images into SlideImages folder
fileuploadimages.SaveAs(Server.MapPath("SlideImages/" & filename))
'Open the database connection
con.Open()
'Query to insert images name and Description into database
Dim cmd As New SqlCommand("Insert into SlideShowTable(ImageName,Description) values(@ImageName,@Description)", con)
'Passing parameters to query
cmd.Parameters.AddWithValue("@ImageName", filename)
cmd.Parameters.AddWithValue("@Description", txtDesc.Text)
cmd.ExecuteNonQuery()
'Close dbconnection
con.Close()
txtDesc.Text = String.Empty
BindDataList()
End Sub
End Class
Now run your application and enter images description and upload some of the images using upload control after that your page should be like this  



Now click on any image slideshow will begin with lightbox effect. Check the below demo

If you observe above image in this lightbox slideshow we are having different features like auto playing,navigate images using ‘prev’ and ‘next’ links, show image description and stop slideshow options and many more.

In slideshow we can navigate by using keyboard shortcuts

f- first image
l- last image
x and c to close
left arrow and p for previous image
right arrow and n for next image

Download sample code attached

3 comments:

  1. I need a help, I saw your example, but I wanted to ask you or did you upload photos without stored procedures C #.I beg you to return response

    ReplyDelete
  2. I need a help, I saw your example, but I wanted to ask you or did you upload photos without stored procedures C #.I beg you to return response

    ReplyDelete
    Replies
    1. Your question is not clear,please clarify again mr. Jon Cross

      Delete

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