here i explained how to add youtube video thumbnail without uploading image
===============================================
.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;
public partial class Default3 :
System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//Here we are binding static urls, you can also bind from
database table
DataTable dt = new
DataTable();
dt.Columns.Add("YoutubeVideoURL");
DataRow dr= dt.NewRow();
DataRow dr1= dt.NewRow();
dr["YoutubeVideoURL"] = "https://www.youtube.com/watch?v=testis";
dr1["YoutubeVideoURL"] = "https://www.youtube.com/watch?v=testid";
dt.Rows.Add(dr);
dt.Rows.Add(dr1);
rpt.DataSource=dt;
rpt.DataBind();
}
}
protected string
CreateVideoThumbnail(string YoutubeUrl)
{
string youTubeThumb = string.Empty;
if (YoutubeUrl == "")
return "";
if (YoutubeUrl.IndexOf("=")
> 0)
{
youTubeThumb = YoutubeUrl.Split('=')[1];
}
else if
(YoutubeUrl.IndexOf("/v/") > 0)
{
string strVideoCode = YoutubeUrl.Substring(YoutubeUrl.IndexOf("/v/") + 3);
int ind = strVideoCode.IndexOf("?");
youTubeThumb = strVideoCode.Substring(0, ind == -1 ? strVideoCode.Length
: ind);
}
else if
(YoutubeUrl.IndexOf('/') < 6)
{
youTubeThumb = YoutubeUrl.Split('/')[3];
}
else if
(YoutubeUrl.IndexOf('/') > 6)
{
youTubeThumb = YoutubeUrl.Split('/')[1];
}
return "http://img.youtube.com/vi/"
+ youTubeThumb + "/mqdefault.jpg";
}
}
<%@ Page
Language="C#"
AutoEventWireup="true"
CodeFile="Default3.aspx.cs"
Inherits="Default3"
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD
XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Repeater ID="rpt" runat="server">
<ItemTemplate>
<a href='<%#Eval("YoutubeVideoURL") %>'"> <asp:Image ID="Image1" src='<%#
CreateVideoThumbnail((Eval("YoutubeVideoURL").ToString())) %>' runat="server" />
</a> <br />
</ItemTemplate>
</asp:Repeater>
</form>
</body>
</html>
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