MediaPlayer WebControl problem

[Jeronimo Bertran]

Hello,

I am creating a Web control then encapsulates a MediaPlayer.



[ToolboxData("<{0}:MediaPlayer runat=server></{0}:MediaPlayer>")]
public class MediaPlayer : WebControl
{
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
public string Url
{
get
{
String s = (String)ViewState["Url"];
return ((s == null) ? String.Empty : s);
}

set
{
ViewState["Url"] = value;
}
}

protected override void RenderContents(HtmlTextWriter writer)
{
HtmlGenericControl player = new HtmlGenericControl
("object");
player.ID = this.ClientID + "_player";
player.Attributes["classid"] ="CLSID:6BF52A52-394A-11d3-
B153-00C04F79FAA6";

player.InnerHtml = "<PARAM name=\"URL\" value=\"" + (String)
ViewState["Url"] + "\"> <PARAM name=\"autoStart\" value=\"false\">";
player.RenderControl(writer);


writer.Write(this.ClientID);
}



The control produces the following HTML.


<span id="MediaPlayer1">
<object id="MediaPlayer1_player" classid="CLSID:6BF52A52-394A-11d3-B153-
00C04F79FAA6"><PARAM name="URL" value="Beep.wav"> <PARAM
name="autoStart" value="false"></object>MediaPlayer1</span>


I am trying to access the object from the page :

input id="Button1" type="button" value="button" onclick="MediaPlayer1
_palyer.controls.play()" />


But I get the following error:

Error:'MediaPlayer1_player' is undefined


How can I access the object from outside the span??

Thanks

Jeronimo Bertran

 

[Walter Wang [MSFT]]

Hi Jeronimo,

Thank you for your post.

I was unable to repro the problem you described. The JavaScript
"MediaPlayer1_player.controls.play()" works ok in my test project.

Is the MediaPlayer rendered correctly in your browser?

Regards,
Walter Wang
Microsoft Online Community Support

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[Steve C. Orr [MVP, MCSD]]

I also created a web control that encapsulates the media player.
It is located here, along with sample code for calling methods client side
as you are trying to do.
It's all free:
http://SteveOrr.net/articles/StreamingMedia.aspx