Click here to Skip to main content
11,714,345 members (83,123 online)
Click here to Skip to main content

YouTube™ Embedded Video Player: Extended API (C#)

, 13 Jul 2015 Ms-PL 153.5K 107
Rate this:
Please Sign up or sign in to vote.
YouTube™ video player API provides variety of customization features (ASP.NET, C#)

Introduction

This extended version of embedded YouTube™ API demonstrates additional customization features, namely:

  • Setting the startup options
  • Selecting the item from the playlist
  • Setting the autoplay mode
  • Setting player's dimension (W/H)
  • Changing the border options
  • Starting the video at predefined time

This project extends the functionality of embedded YouTube Video Player API described in my previous article [1]

Start-up mode

Start-up options could be set by using Web Query; as an example, the following query sets the autoplay option and selected item index=2 (see the sample screenshot taken from the functional demo here). Also, the start-up time for each item could be set programmatically. Notice two command buttons at the bottom of the sample screenshot in Figure 1; clicking on these buttons when the actual application is running will cause the playback to start at a certain predefined position (15 sec and 60 sec correspondingly).

Figure 1: Embedded YouTube™ player with item start-up time set programmatically
 

Note: all images are included for Demo purpose only. Please do not copy/redistribute.

Using the Code

Project includes:

  • Default Web page "Default.aspx" with corresponding code behind: both to be placed in Application root directory
  • Class module YouTubeScript.cs to be placed in App_Code application folder

Sample Web Page includes a Literal1 control, serving as a JavaScript container and a populated DropDownList control with two sample items, serving as a simple playlist:

<%@ Page Language="C#"
AutoEventWireup="true"
CodeFile="Default.aspx.cs"
Inherits="_DEMO" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ Register assembly="AjaxControlToolkit"
namespace="AjaxControlToolkit"
tagprefix="cc1" %>
<html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <title>ASP.NET Embedded Video Player | YouTube DEMO</title>
    </head>
    <body>
        <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server" />
        <asp:UpdatePanel ID="UpdatePanel1" runat="server" updatemode="Conditional" >
            <ContentTemplate>
                <div>
                    <!-- ALL CONTENT IS SHOWN FOR DEMO PURPOSE ONLY-->
                    <asp:DropDownList ID="cmbPlaylist" 
			runat="server" AutoPostBack="True">
                        <asp:ListItem Value="x_4CNvG1Q_M">
                        Anastasia Volochkova dancing (Adiemus)
                        </asp:ListItem>

                        <asp:ListItem Value="raRaxt_KM9Q">
                        Sound Of Silence (Masters of Chant)
                        </asp:ListItem>
                    </asp:DropDownList>

                    <br /><br />
                    <asp:Literal ID="Literal1" runat="server"></asp:Literal>
                </div>
                <asp:Button ID="Button1" runat="server"
                Text="START AT 15 SEC" onclick="Button1_Click" />

                <asp:Button ID="Button2" runat="server"
                Text="START AT 60 SEC" onclick="Button2_Click" />

            </ContentTemplate>
          </asp:UpdatePanel>

          <hr />
          <h4>Sample Demo: Anastasia Volochkova,
		Russian prima ballerina is dancing "Adiemus"</h4>
          <h4>Initial settings: 640x505, autoplay=0</h4>
          <hr />
              More Demo available at: www.webinfocentral.com
          <hr />
        </form>
    </body>
</html>

Code Behind Page

//****************************************************************************
// Module           :   Default.aspx.cs
// Type             :   ASP.NET web page code behind
// Developer        :   Alexander Bell (Infosoft International Inc)
// Description      :   YouTube API for ASP.NET (DEMO)
//****************************************************************************
// DISCLAIMER: This Application is provide on AS IS basis without any warranty
//****************************************************************************

//****************************************************************************
// TERMS OF USE     :   ALL CONTENT IS SHOWN FOR DEMO PURPOSE ONLY
//****************************************************************************
using System;

public partial class _DEMO : System.Web.UI.Page
{
    #region init settings
    // player width
    private int _W = 640;

    // player height
    private int _H = 505;

    // autoplay disabled
    bool auto = false;
    #endregion

    #region Page Load event
    protected void Page_Load(object sender, EventArgs e)
    {

        if (!IsPostBack)
        {
            #region Start mode customization via Web Query String
            int idx = 0;
            string qry = "";

            // Web Query to set autoplay option
            try {
                qry = "auto";
                qry = (Request.QueryString[qry] == null) ? 
				"" : Request.QueryString[qry];
                if (qry != "") { auto = Boolean.Parse(qry); }
            } catch { }

            // Web Query to set item index
            try {
                qry = "item";
                qry = (Request.QueryString[qry] == null) ? 
				"" : Request.QueryString[qry];
                if (qry != "") { idx = int.Parse(qry); }
            } catch { }
            #endregion

            // set selected index
            cmbPlaylist.SelectedIndex = idx;

            // generate script on page load
            Literal1.Text = YouTubeScript.Get(cmbPlaylist.SelectedValue, auto, _W, _H);
        }
        else
        {
            // generate script on page postback
            Literal1.Text = YouTubeScript.Get(cmbPlaylist.SelectedValue, false, _W, _H);
        }
    }
    #endregion

    #region User events
    /// <summary>
    /// Script to start video at predefined time, change border color
    /// </summary>
    protected void Button1_Click(object sender, EventArgs e)
    {
       // set start time = 15 sec, change border colors
        Literal1.Text =
        YouTubeScript.Get(cmbPlaylist.SelectedValue, true,
        _W, _H, true, "maroon", "", 15);
    }

    /// <summary>
    /// Script to start video at predefined time, remove border
    /// </summary>
    protected void Button2_Click(object sender, EventArgs e)
    {
        // set start time = 60 sec, remove border
        Literal1.Text =
        YouTubeScript.Get(cmbPlaylist.SelectedValue, true,
        _W, _H, false, "", "", 60);
    }
    #endregion
}

Note: try-catch blocks in Page_Load event procedure are inserted for future development. Also, as mentioned in comments, int.Parse can be replaced with int.TryParse(), the same goes to Boolean parsing, eliminating the need for particular try-catch blocks.

Class Module

//******************************************************************************
// Module           :   YouTubeScript.cs
// Author           :   Alexander Bell
// Copyright        :   2009 Infosoft International Inc
// Description      :   YouTube Player Javascript generator

//******************************************************************************
// DISCLAIMER: This Application is provide on AS IS basis without any warranty
//******************************************************************************

//******************************************************************************
// TERMS OF USE     :   This module is copyrighted.
//                  :   You can use it at your sole risk provided that you keep
//                  :   the original copyright note.
//******************************************************************************

using System;
using System.Text;

///*****************************************************************************
/// <summary>
/// Generate Javascript to embed YouTube Video Player in ASP.NET web page
/// </summary>
public static class YouTubeScript
{
    private const int _defaultW= 320;
    private const int _defaultH = 240;

    #region YouTube Player default script: no autoplay, 320x240
    /// <summary>
    /// YouTube Player default script: no autoplay, 320x240
    /// </summary>
    /// <param name="id">id</param>
    /// <param name="auto">int</param>
    /// <returns>string</returns>
    public static string Get(string id)
    { return Get(id, false, _defaultW, _defaultH); }
    #endregion

    #region YouTube Player script w/autoplay option (320x240)
    /// <summary>
    /// YouTube Player script w/autoplay option (320x240)
    /// </summary>
    /// <param name="id">id</param>
    /// <param name="auto">bool</param>
    /// <returns>string</returns>
    public static string Get(string id, bool auto)
    { return Get(id, auto, _defaultW, _defaultH ); }
    #endregion

    #region YouTube Player script w/autoplay option (320x240)
    /// <summary>
    /// YouTube Player script w/autoplay option (320x240)
    /// </summary>
    /// <param name="id">id</param>
    /// <param name="auto">int</param>
    /// <returns>string</returns>
    public static string Get(string id, int auto)
    { return Get(id, ((auto == 1) ? true : false), _defaultW, _defaultH ); }
    #endregion

    #region YouTube Player script w/selectable: autoplay and W/H
    /// <summary>
    /// YouTube Player script w/selectable: autoplay and W/H options
    /// </summary>
    /// <param name="id">id</param>
    /// <param name="auto">bool</param>
    /// <param name="W">int</param>
    /// <param name="H">int</param>
    /// <returns>string</returns>
    public static string Get(string id, bool auto, int W, int H)
    { return Get(id, auto, W, H, true); }
    #endregion

    #region YouTube Player script w/selectable: autoplay, W/H and default border
    /// <summary>
    /// YouTube Player script w/selectable: autoplay, W/H, default border color
    /// </summary>
    /// <param name="id">id</param>
    /// <param name="auto">bool</param>
    /// <param name="W">int</param>
    /// <param name="H">int</param>
    /// <param name="Border">bool</param>
    /// <returns>string</returns>
    public static string Get(string id, bool auto, int W, int H, bool Border)
    { return Get(id, auto, W, H, Border, "0x2b405b", "0x6b8ab6",0 ); }
    #endregion

    #region YouTube Player script w/selectable: autoplay, W/H and border color
    /// <summary>
    /// YouTube Player script w/selectable: autoplay, W/H and border color
    /// </summary>
    /// <param name="id">id</param>
    /// <param name="auto">bool</param>
    /// <param name="W">int</param>
    /// <param name="H">int</param>
    /// <param name="Border">bool</param>
    /// <param name="C1">string</param>
    /// <param name="C2">string</param>
    /// <returns>string</returns>
    public static string Get
            (string id,
            bool auto,
            int W,
            int H,
            string C1,
            string C2)
   { return Get(id, auto, W, H, true, C1,C2, 0); }
    #endregion

    #region YouTube Player script w/selectable: autoplay, W/H and border color
    /// <summary>
    /// YouTube Player script w/selectable: autoplay, W/H and border color
    /// </summary>
    /// <param name="id">id</param>
    /// <param name="auto">bool</param>
    /// <param name="W">int</param>
    /// <param name="H">int</param>
    /// <param name="Border">bool</param>
    /// <param name="C1">string</param>
    /// <param name="C2">string</param>
    /// <returns>string</returns>
    public static string Get
            (string id,
            bool auto,
            int W,
            int H,
            bool Border,
            string C1,
            string C2,
            int Start)
    {
        StringBuilder sb = new StringBuilder();
        sb.Append(@"<embed src='http://www.youtube.com/v/");

        // select the youTube item to play
        sb.Append(id);

        // set autoplay options (indicates number of plays)
        if (auto) sb.Append("&autoplay=1");

        // no related items to display
        sb.Append("&rel=0");

        // set border color 1 and 2
        if (Border)
        {
            sb.Append("&border=1");
            sb.Append("&color1=" + @C1);
            sb.Append("&color2=" + @C2);
        }

        // start position
        if (Start>0) sb.Append("&start=" + Start.ToString());

        // allow full screen
        sb.Append("&fs=1");

        // closing single quote after parameter list
        sb.Append("' ");


        sb.Append("type='application/x-shockwave-flash' ");

        // add id
        sb.Append("id='youTubePlayer" + DateTime.Now.Millisecond.ToString() + "' ");
        sb.Append("allowscriptaccess='never' enableJavascript ='false' ");

        // set parameters: allowfullscreen
        sb.Append("allowfullscreen='true' ");

        // set width
        sb.Append("width='" + W.ToString() + "' ");

        // set height
        sb.Append("height='" + H.ToString() + "' ");

        sb.Append(@"></embed>");

        // get final script
        string scr = sb.ToString();

        sb = null;
        return scr;
    }
    #endregion
}
///************************************************************************************

Note: marginal performance improvements can be achieved by using String.Concat() instead of Append() methods (used in the above code snippet for clarity and didactic purpose).

Browser compatibility

This technique has been tested against 4 major browsers:

  • Microsoft Internet Explorer 7.0+
  • Mozilla Firefox
  • Google Chrome
  • Apple Safari

WebTV Project

The section above described powerful video streaming technology based on YouTube player embedded in ASP.NET web page. What's next? The logical extension would be adding a playlist controls and bing it to the underlying database. ASP.NET GridView control can perfectly fit the purpose: it allows creation of the templated field with advanced CSS styling [4,5] (other option would be implementing full-fleged MVC, but for such relatively simple task it seems an overkill). The possible implementation is shown below in sample screenshot.

Backend Database

The backend Database could be of any type. Its main Table should contain a mandatory VideoID field (unique key), which identifies the video item on YouTube (it's used as a web query parameter, for example: VidID=9bZkp7q19f0 corresponds to the most popular music-video of all time "Gangnam Style" by PSY). The other fields are optional, like: Title, Performer, Views, Likes, Duration, etc, so the generic video items Table creation schema may look like the following snippet:

CREATE TABLE VideoItems
(
  ID int NOT NULL PRIMARY KEY,
  VidID varchar(20) NOT NULL UNIQUE,
  Title nvarchar(255) NOT NULL,
   Performer nvarchar(255),
   Duration int,
   Views long,
   Likes long,
   Dislikes long
)

Demo

This demo screenshot demonstrates the technique described above using GridView control's custom Template field. Click on the image-link below to open fully-functional WebTV app [2]:

Fig2. WebTV pilot project powered by embedded YouTube API for ASP.NET, sample screenshot

The section to the left contains embedded YouTube player: section to the right is made of GridView control linked to the app backend Database with functionality extended via Javascript [3]. Other controls provide additional navigation convenience (as in typical video player). The actual WebTV project also implements a scheduler that allows the items auto-progressing operational mode.

Note: all images are included for Demo purpose only. Please do not copy/redistribute.

Adding Features to WebTV

The backend database linked to the Youtube Video Player provides plenty of room for further customization/extension. The first quite obvious 'data mining' extension would be sorting the items based on their popularity (Views [6]). Currently their are 2 'Gigamen' (Justing Bieber and PSY) with more that 1 billion views per a single video item and one recently added to the giga-club 'GigaLady' (Katy Perry). Most likely Taylor Swift will join the "Giga-club" some time soon (stay tune). A word to add: this astronomical popularity of music-video genre is sort of mind-boggling! With a sort of bitter irony, my cumulative articles/tips views count in a range of 3 million put me in a category of just entry-level cat videos (so far, the most popular "Nyan Cat" video accounts for approx 122 mega-views). Play list could be also customized by music genre, e.g. Classical music [7], etc.

Points of Interest

YouTube playback customization technique

Other points of interest may include a video playback customization, related to the linked (not embedded) YouTube video items. These customization technique allows to:

  • Start video playback at specific position (set offset in minutes and second)
  • Specify the number of video re-plays (Loop)
  • Start the video playback in Full Screen Mode
  • Turn “Related Video” options ON/OFF
  • Set the Autoplay option
  • Set the Playback Video Quality

History

  • Article was published on 09/15/2009
  • Updated on 04/14/2013 w/more customization options
  • Updated on 07/12/2015 describing WebTV w/enhanced set of controls

References

  1. YouTube™ API for ASP.NET
  2. YouTube WebTV
  3. Click/Select row in ASP.NET GridView or HTML 5 Table
  4. Hyperlinked Images in ASP.NET GridView
  5. Nested GridView controls in ASP.NET: best practices
  6. YouTube Top-100 of all time
  7. Best YouTube Classical Music Videos

License

This article, along with any associated source code and files, is licensed under The Microsoft Public License (Ms-PL)

Share

About the Author

DrABELL
President Infosoft International Inc
United States United States
Dr. A. Bell has 20+ years of Software and Electrical Engineering experience: Win/Web veteran, published 300+ articles and authored 37 inventions, credited for 10+ Enterprise level projects (>250k code lines); currently focused on .NET/WPF/C#, Javascript/jQuery, 'Big Data', AI, IoT and Mobile apps. Participated in App Innovation Contest (AIC 2102/2013) with several winning submissions. Sample projects/pubs follow:
  1. WebTV Project: Embedded YouTube Player (Goog #1 YouTube API for ASP.NET)
  2. Edumatter M12: School Math Calculators and Equation Solvers (contest winner)
  3. Engineering Calculator VOLTA-2013 (contest winner)
  4. Online 3 Fractions Calculator (#1 on Goog)
  5. Engineering Calculator VOLTA-814 for Windows
  6. Real-time NY Bus monitoring app
  7. Inflation Calculator
  8. PaydayNY-2015 Payroll Tax Calculator (Win)
  9. Multilingual Geocoder with Interactive Map
  10. Semantic Analyzer (Concordance Calculator)
  11. Prime Factoring Calculator

You may also be interested in...

Comments and Discussions

 
QuestionResponsive? Pin
Wombaticus22-Jul-15 0:40
memberWombaticus22-Jul-15 0:40 
AnswerOT: reposting Pin
OriginalGriff22-Jul-15 0:42
protectorOriginalGriff22-Jul-15 0:42 
GeneralRe: OT: reposting Pin
Wombaticus22-Jul-15 0:54
memberWombaticus22-Jul-15 0:54 
AnswerRe: Responsive? Pin
DrABELL22-Jul-15 3:39
professionalDrABELL22-Jul-15 3:39 
QuestionCan this be used in a winforms application? Pin
dawiemos9-Feb-15 20:07
memberdawiemos9-Feb-15 20:07 
AnswerRe: Can this be used in a winforms application? Pin
DrABELL10-Feb-15 2:36
professionalDrABELL10-Feb-15 2:36 
QuestionA few comments Pin
Pete O'Hanlon14-Apr-13 23:09
protectorPete O'Hanlon14-Apr-13 23:09 
AnswerRe: A few comments Pin
DrABELL15-Aug-14 4:11
professionalDrABELL15-Aug-14 4:11 
QuestionDo you have a classic asp code for youtube api? Pin
cuneyttunc24-Apr-12 0:27
membercuneyttunc24-Apr-12 0:27 
AnswerRe: Do you have a classic asp code for youtube api? Pin
DrABELL15-Aug-14 4:12
professionalDrABELL15-Aug-14 4:12 
Questionfull screen Pin
shivasharmaarya20-Jan-12 9:12
membershivasharmaarya20-Jan-12 9:12 
AnswerRe: full screen Pin
DrABELL15-Aug-14 4:14
professionalDrABELL15-Aug-14 4:14 
GeneralQustion about the PlayEvent Pin
franva11-Feb-11 2:11
memberfranva11-Feb-11 2:11 
GeneralRe: Qustion about the PlayEvent Pin
DrABELL11-Feb-11 2:39
memberDrABELL11-Feb-11 2:39 
GeneralMy vote of 5 Pin
usernameCasper25-Jan-11 11:21
memberusernameCasper25-Jan-11 11:21 
GeneralRe: My vote of 5 Pin
DrABELL15-Aug-14 4:14
professionalDrABELL15-Aug-14 4:14 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Terms of Use | Mobile
Web02 | 2.8.150819.1 | Last Updated 13 Jul 2015
Article Copyright 2009 by DrABELL
Everything else Copyright © CodeProject, 1999-2015
Layout: fixed | fluid