AJAX and embeded controls

12 Feb 2007 11:30 PM

Jerry C

I am having trouble using a user control with AJAX. The control will put a
script in to a Literal on the page The code is below. It runs the first time
then when the button is pressed it will not run.

Code:

ASPX page:

<%@ Page Language="VB" AutoEventWireup="true" CodeFile="Default.aspx.vb"
Inherits="_Default" %>

<%@ Register Src="AJAXPlayAsset.ascx" TagName="AJAXPlayAsset"
TagPrefix="uc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript" language=javascript
src="App_Java/PlayAssetX.js"></script>
</head>
<body>
    <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePartialRendering=true >
         <Scripts>
                <asp:ScriptReference path="App_Java/PlayAssetX.js" />
             </Scripts>
        </asp:ScriptManager>
        <asp:Button ID="btnEnlarge" runat="server" Text="Button" />
        <div>
            <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
            <uc1:AJAXPlayAsset id="AJAXPlayAsset1" runat="server">
            </uc1:AJAXPlayAsset>

            </ContentTemplate>
            <Triggers>
                 <asp:AsyncPostBackTrigger ControlID="btnEnlarge"
EventName="Click" />
            </Triggers>
            </asp:UpdatePanel>

            </div>
    </form>
</body>
</html>

Code Behind for ASPX page:

Partial Class _Default
    Inherits System.Web.UI.Page
    Dim strHTMLAssetToPlay As String = ""
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Me.Load
        strHTMLAssetToPlay = "<script>PlayAsset('<Embed
src=""tmp330Octave_Stomp.mp3"" width=350 height=350></embed>');</script>"
        If Not IsPostBack Then
            AJAXPlayAsset1.AssetString = strHTMLAssetToPlay
        End If
    End Sub
    Protected Sub btnEnlarge_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btnEnlarge.Click
        'do something here like change the size of the Imbed
        AJAXPlayAsset1.AssetString = strHTMLAssetToPlay
    End Sub
End Class

Code for User control ASCX:

<%@ Control Language="VB" ClassName="AJAXPlayAsset" AutoEventWireup="false"
CodeFile="AJAXPlayAsset.ascx.vb" Inherits="AJAXPlayAsset" %>
<table><tr><td>
    <asp:Literal ID="Literal1" runat="server"></asp:Literal><br />
</td></tr></table>

Code behind for the ASCX

'This is the user control
Partial Class AJAXPlayAsset
    Inherits System.Web.UI.UserControl
    Public Property AssetString() As String
        Get
            Return ViewState("AString")
        End Get
        Set(ByVal value As String)
            ViewState("AString") = value
            Literal1.Text = value
        End Set
    End Property

End Class

to try the code you may have to find a windows media file to play mine works
ok with a MP3

Thank you

--
Jerry

13 Feb 2007 7:44 AM

Walter Wang [MSFT]

Hi Jerry,

To run script in partial-page rendering, you must use
ScriptManager.RegisterStartupScript to register the script instead of
simply outputing the scripting into the page:

    Protected Sub btnEnlarge_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btnEnlarge.Click
        ScriptManager.RegisterStartupScript(AJAXPlayAsset1, GetType(Page),
"test", strHTMLAssetToPlay, False)
    End Sub

You could find more information about ScriptManager.RegisterStartupScript
here:

http://ajax.asp.net/docs/mref/M_System_Web_UI_ScriptManager_RegisterStartupS
cript_5_d03cd23f.aspx

Hope this helps.

Sincerely,
Walter Wang (waw***@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

==================================================
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Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscriptions/support/default.aspx.
==================================================

This posting is provided "AS IS" with no warranties, and confers no rights.

13 Feb 2007 4:17 PM

Jerry C

Walter,

Thank you for the reply. I have coded the start up scripts in the user
control and still the first mp3 will play but the second script will not
play. Here is the code

UserControl:

<%@ Control Language="VB" ClassName="AJAXPlayAsset" AutoEventWireup="false"
CodeFile="AJAXPlayAsset.ascx.vb" Inherits="AJAXPlayAsset" %>

Usercontrol code behind:

'This is the user control
Partial Class AJAXPlayAsset
    Inherits System.Web.UI.UserControl
    Public Property RegScript1() As String
        Get
            Return ViewState("AString")
        End Get
        Set(ByVal value As String)
            Dim strHTMLAssetToPlay As String
            strHTMLAssetToPlay = "<script>PlayAsset('<Embed
src=""tmp330Octave_Stomp.mp3"" width=350 height=350></embed>');</script>"
            ScriptManager.RegisterStartupScript(Me, GetType(Page),
"PlayAsset1", strHTMLAssetToPlay, False)
        End Set
    End Property
    Public Property RegScript2() As String
        Get
            Return ViewState("AString")
        End Get
        Set(ByVal value As String)
            Dim strHTMLAssetToPlay As String
            strHTMLAssetToPlay = "<script>PlayAsset('<Embed
src=""tmp4E-Tango.mp3"" width=350 height=350></embed>');</script>"
            ScriptManager.RegisterStartupScript(Me, GetType(Page),
"PlayAsset", strHTMLAssetToPlay, False)
        End Set
    End Property
End Class

Default page:

<%@ Page Language="VB" ClassName="AJAXPage" AutoEventWireup="true"
CodeFile="Default.aspx.vb" Inherits="_Default" %>
<%@ Register Src="AJAXPlayAsset.ascx" TagName="AJAXPlayAsset"
TagPrefix="uc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript" language=javascript
src="App_Java/PlayAssetX.js"></script>
</head>
<body>
    <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePartialRendering=true   >
        </asp:ScriptManager>
        <div>
            <asp:Button ID="btnEnlarge" runat="server" Text="Button" />
            <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <uc1:AJAXPlayAsset ID="AJAXPlayAsset1" runat="server" />
             </ContentTemplate>
            <Triggers>
                <asp:AsyncPostBackTrigger ControlID=btnEnlarge
EventName=Click/>
            </Triggers>
            </asp:UpdatePanel>
        </div>
    </form>
</body>
</html>

Default page code behind:

Partial Class _Default
    Inherits System.Web.UI.Page
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Me.Load
        If Not IsPostBack Then
            AJAXPlayAsset1.RegScript1 = ""
        End If
    End Sub
    Protected Sub btnEnlarge_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btnEnlarge.Click
        'do something here like change the size of the Imbed
        AJAXPlayAsset1.RegScript2 = ""
    End Sub
End Class

The second asset will not play. but if I remove the Trigger Section from the
default page UpdatePanel section then the second asset plays of course the
page has also posted back which is what I want to prevent with AJAX. I want
to have buttons that change the size or MP3 or whatever without posting the
page back just change the MP3 or the player settings of the file played with
the script. This script is what is neccessary because of the law suite about
enbeded objects so it is necessary. I hope this will work with AJAX.

Thank you

--
Jerry

Show quoteHide quote

"Walter Wang [MSFT]" wrote:

> Hi Jerry,
>
> To run script in partial-page rendering, you must use
> ScriptManager.RegisterStartupScript to register the script instead of
> simply outputing the scripting into the page:
>
>     Protected Sub btnEnlarge_Click(ByVal sender As Object, ByVal e As
> System.EventArgs) Handles btnEnlarge.Click
>         ScriptManager.RegisterStartupScript(AJAXPlayAsset1, GetType(Page),
> "test", strHTMLAssetToPlay, False)
>     End Sub
>
>
> You could find more information about ScriptManager.RegisterStartupScript
> here:
>
> http://ajax.asp.net/docs/mref/M_System_Web_UI_ScriptManager_RegisterStartupS
> cript_5_d03cd23f.aspx
>
> Hope this helps.
>
> Sincerely,
> Walter Wang (waw***@online.microsoft.com, remove 'online.')
> Microsoft Online Community Support
>
> ==================================================
> Get notification to my posts through email? Please refer to
> http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif
> ications. If you are using Outlook Express, please make sure you clear the
> check box "Tools/Options/Read: Get 300 headers at a time" to see your reply
> promptly.
>
> Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
> where an initial response from the community or a Microsoft Support
> Engineer within 1 business day is acceptable. Please note that each follow
> up response may take approximately 2 business days as the support
> professional working with you may need further investigation to reach the
> most efficient resolution. The offering is not appropriate for situations
> that require urgent, real-time or phone-based interactions or complex
> project analysis and dump analysis issues. Issues of this nature are best
> handled working with a dedicated Microsoft Support Engineer by contacting
> Microsoft Customer Support Services (CSS) at
> http://msdn.microsoft.com/subscriptions/support/default.aspx.
> ==================================================
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

14 Feb 2007 12:46 PM

Walter Wang [MSFT]

Hi Jerry,

Registering startup script is not recommended in your property. It's
recommended to do it either in Page_Load or OnPreRender. Since here the
script you need to register is controlled by a property, it should be done
in OnPreRender:

    Public Property AssetString() As String
        Get
            Return ViewState("AString")
        End Get
        Set(ByVal value As String)
            ViewState("AString") = value
        End Set
    End Property

    Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
        ScriptManager.RegisterStartupScript(Me, Me.GetType(), "test",
AssetString, False)
        MyBase.OnPreRender(e)
    End Sub

Regards,
Walter Wang (waw***@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

==================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
==================================================

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19 Feb 2007 11:43 AM

Walter Wang [MSFT]

Hi Jerry,

I am interested in this issue. Would you mind letting me know the result of
the suggestions? If you need further assistance, feel free to let me know.
I will be more than happy to be of assistance.

Have a great day!

Regards,
Walter Wang (waw***@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

==================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
==================================================

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21 Feb 2007 3:01 PM

Jerry C

Walter,

Thank you for the replys. I have tried putting the script in the prerender
and it still does not work. All the code is the same and the control code
behing is:

'This is the user control
Partial Class AJAXPlayAsset
    Inherits System.Web.UI.UserControl
    Dim strHTMLAssetToPlay As String

    Public Property RegScript1() As String
        Get
            Return ViewState("AString")
        End Get
        Set(ByVal value As String)
                      strHTMLAssetToPlay = "<script>PlayAsset('<Embed
src=""tmp330Octave_Stomp.mp3"" width=350 height=350></embed>');</script>"
        End Set
    End Property

    Public Property RegScript2() As String
        Get
            Return ViewState("AString")
        End Get
        Set(ByVal value As String)
            strHTMLAssetToPlay = "<script>PlayAsset('<Embed
src=""tmp4E-Tango.mp3"" width=350 height=350></embed>');</script>"
        End Set
    End Property

    Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
        ScriptManager.RegisterStartupScript(Me, Me.GetType(), "PlayAsset",
strHTMLAssetToPlay, False)
        MyBase.OnPreRender(e)
    End Sub
End Class

This code all works without AJAX

Thank you

--
Jerry

Show quoteHide quote

"Walter Wang [MSFT]" wrote:

> Hi Jerry,
>
> I am interested in this issue. Would you mind letting me know the result of
> the suggestions? If you need further assistance, feel free to let me know.
> I will be more than happy to be of assistance.
>
> Have a great day!
>
>
> Regards,
> Walter Wang (waw***@online.microsoft.com, remove 'online.')
> Microsoft Online Community Support
>
> ==================================================
> When responding to posts, please "Reply to Group" via your newsreader so
> that others may learn and benefit from your issue.
> ==================================================
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

22 Feb 2007 6:45 AM

Walter Wang [MSFT]

Hi Jerry,

Try following example code to see if works for you (make sure you have
those two test mp3 files in your web site with the webform):

1) AJAXPlayAsset.ascx:

<%@ Control Language="VB" ClassName="AJAXPlayAsset" AutoEventWireup="false"
CodeFile="AJAXPlayAsset.ascx.vb"
    Inherits="AJAXPlayAsset" %>

<script type="text/javascript" language="javascript">
function PlayAsset(x)
{
    document.getElementById('Player').URL = x;
}
</script>

<object id="Player" width="200" height="150"
classid="clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6"
    type="application/x-oleobject">
</object>

2) AJAXPlayAsset.ascx.vb

Partial Class AJAXPlayAsset
    Inherits System.Web.UI.UserControl

    Public Property PlayURL() As String
        Get
            Return IIf(ViewState("PlayURL") Is Nothing, "track09.mp3",
CType(ViewState("PlayURL"), String))
        End Get
        Set(ByVal value As String)
            ViewState("PlayURL") = value
        End Set
    End Property

    Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
        ScriptManager.RegisterStartupScript(Me, Me.GetType(), "PlayAsset",
String.Format("PlayAsset('{0}');", PlayURL), True)
        MyBase.OnPreRender(e)
    End Sub
End Class

3) Default.aspx

<%@ Page Language="VB" AutoEventWireup="true" CodeFile="Default.aspx.vb"
Inherits="_Default" %>

<%@ Register Src="AJAXPlayAsset.ascx" TagName="AJAXPlayAsset"
TagPrefix="uc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePartialRendering="true">
        </asp:ScriptManager>
        <asp:Button ID="btnEnlarge" runat="server" Text="Button" />
        <div>
            <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                <ContentTemplate>
                    <uc1:AJAXPlayAsset ID="AJAXPlayAsset1"
runat="server"></uc1:AJAXPlayAsset>
                </ContentTemplate>
                <Triggers>
                    <asp:AsyncPostBackTrigger ControlID="btnEnlarge"
EventName="Click" />
                </Triggers>
            </asp:UpdatePanel>
        </div>
    </form>
</body>
</html>

4) Default.aspx.vb

Partial Class _Default
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Me.Load

    End Sub

    Protected Sub btnEnlarge_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btnEnlarge.Click
        AJAXPlayAsset1.PlayURL = "Track13.mp3"
    End Sub
End Class

Regards,
Walter Wang (waw***@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

==================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
==================================================

This posting is provided "AS IS" with no warranties, and confers no rights.

23 Feb 2007 2:08 PM

Jerry C

Walter,

Thank you for the reply. I will try your code but I realy need to be using
the embed tag because it will play any plugin for the media based on the file
associations. embeding player objects adds a aditional layer to decide which
object to embed in the page embed tag seems easer than the object tag
using a script to embed objects is the result of the lawsuit see:
http://www.devx.com/webdev/Article/30154/1763

If anyone has tried to use AJAX for this it would help I think I may have to
work with the AJAX documentation about scripts see the page
/tutorials/EnhancingJavaScriptTutorial.aspx in the AJAX documentation web
site included with the deploy of AJAX 1.0

I have kind of run out of time on this project and will probably not use
AJAX for this. Maybe later someone else will find a solution.

Thank you

--
Jerry

Show quoteHide quote

"Walter Wang [MSFT]" wrote:

> Hi Jerry,
>
> Try following example code to see if works for you (make sure you have
> those two test mp3 files in your web site with the webform):
>
>
> 1) AJAXPlayAsset.ascx:
>
> <%@ Control Language="VB" ClassName="AJAXPlayAsset" AutoEventWireup="false"
> CodeFile="AJAXPlayAsset.ascx.vb"
>     Inherits="AJAXPlayAsset" %>
>
> <script type="text/javascript" language="javascript">
> function PlayAsset(x)
> {
>     document.getElementById('Player').URL = x;
> }
> </script>
>
> <object id="Player" width="200" height="150"
> classid="clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6"
>     type="application/x-oleobject">
> </object>
>
>
> 2) AJAXPlayAsset.ascx.vb
>
> Partial Class AJAXPlayAsset
>     Inherits System.Web.UI.UserControl
>
>     Public Property PlayURL() As String
>         Get
>             Return IIf(ViewState("PlayURL") Is Nothing, "track09.mp3",
> CType(ViewState("PlayURL"), String))
>         End Get
>         Set(ByVal value As String)
>             ViewState("PlayURL") = value
>         End Set
>     End Property
>
>     Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
>         ScriptManager.RegisterStartupScript(Me, Me.GetType(), "PlayAsset",
> String.Format("PlayAsset('{0}');", PlayURL), True)
>         MyBase.OnPreRender(e)
>     End Sub
> End Class
>
>
> 3) Default.aspx
>
> <%@ Page Language="VB" AutoEventWireup="true" CodeFile="Default.aspx.vb"
> Inherits="_Default" %>
>
> <%@ Register Src="AJAXPlayAsset.ascx" TagName="AJAXPlayAsset"
> TagPrefix="uc1" %>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
> "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
> <html xmlns="http://www.w3.org/1999/xhtml">
> <head runat="server">
>     <title>Untitled Page</title>
> </head>
> <body>
>     <form id="form1" runat="server">
>         <asp:ScriptManager ID="ScriptManager1" runat="server"
> EnablePartialRendering="true">
>         </asp:ScriptManager>
>         <asp:Button ID="btnEnlarge" runat="server" Text="Button" />
>         <div>
>             <asp:UpdatePanel ID="UpdatePanel1" runat="server">
>                 <ContentTemplate>
>                     <uc1:AJAXPlayAsset ID="AJAXPlayAsset1"
> runat="server"></uc1:AJAXPlayAsset>
>                 </ContentTemplate>
>                 <Triggers>
>                     <asp:AsyncPostBackTrigger ControlID="btnEnlarge"
> EventName="Click" />
>                 </Triggers>
>             </asp:UpdatePanel>
>         </div>
>     </form>
> </body>
> </html>
>
>
> 4) Default.aspx.vb
>
> Partial Class _Default
>     Inherits System.Web.UI.Page
>
>     Protected Sub Page_Load(ByVal sender As Object, ByVal e As
> System.EventArgs) Handles Me.Load
>
>     End Sub
>
>     Protected Sub btnEnlarge_Click(ByVal sender As Object, ByVal e As
> System.EventArgs) Handles btnEnlarge.Click
>         AJAXPlayAsset1.PlayURL = "Track13.mp3"
>     End Sub
> End Class
>
>
> Regards,
> Walter Wang (waw***@online.microsoft.com, remove 'online.')
> Microsoft Online Community Support
>
> ==================================================
> When responding to posts, please "Reply to Group" via your newsreader so
> that others may learn and benefit from your issue.
> ==================================================
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

23 Feb 2007 2:11 PM

Jerry C

Walter

Here is the MS page that shows how to use activex controls in a web page http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/overview/activating_activex.asp

This is what I am trying to do with AJAX both on page load and with a
partial page Postback using the embed tag

Thank you

--
Jerry

Show quoteHide quote

"Walter Wang [MSFT]" wrote:

> Hi Jerry,
>
> Try following example code to see if works for you (make sure you have
> those two test mp3 files in your web site with the webform):
>
>
> 1) AJAXPlayAsset.ascx:
>
> <%@ Control Language="VB" ClassName="AJAXPlayAsset" AutoEventWireup="false"
> CodeFile="AJAXPlayAsset.ascx.vb"
>     Inherits="AJAXPlayAsset" %>
>
> <script type="text/javascript" language="javascript">
> function PlayAsset(x)
> {
>     document.getElementById('Player').URL = x;
> }
> </script>
>
> <object id="Player" width="200" height="150"
> classid="clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6"
>     type="application/x-oleobject">
> </object>
>
>
> 2) AJAXPlayAsset.ascx.vb
>
> Partial Class AJAXPlayAsset
>     Inherits System.Web.UI.UserControl
>
>     Public Property PlayURL() As String
>         Get
>             Return IIf(ViewState("PlayURL") Is Nothing, "track09.mp3",
> CType(ViewState("PlayURL"), String))
>         End Get
>         Set(ByVal value As String)
>             ViewState("PlayURL") = value
>         End Set
>     End Property
>
>     Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
>         ScriptManager.RegisterStartupScript(Me, Me.GetType(), "PlayAsset",
> String.Format("PlayAsset('{0}');", PlayURL), True)
>         MyBase.OnPreRender(e)
>     End Sub
> End Class
>
>
> 3) Default.aspx
>
> <%@ Page Language="VB" AutoEventWireup="true" CodeFile="Default.aspx.vb"
> Inherits="_Default" %>
>
> <%@ Register Src="AJAXPlayAsset.ascx" TagName="AJAXPlayAsset"
> TagPrefix="uc1" %>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
> "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
> <html xmlns="http://www.w3.org/1999/xhtml">
> <head runat="server">
>     <title>Untitled Page</title>
> </head>
> <body>
>     <form id="form1" runat="server">
>         <asp:ScriptManager ID="ScriptManager1" runat="server"
> EnablePartialRendering="true">
>         </asp:ScriptManager>
>         <asp:Button ID="btnEnlarge" runat="server" Text="Button" />
>         <div>
>             <asp:UpdatePanel ID="UpdatePanel1" runat="server">
>                 <ContentTemplate>
>                     <uc1:AJAXPlayAsset ID="AJAXPlayAsset1"
> runat="server"></uc1:AJAXPlayAsset>
>                 </ContentTemplate>
>                 <Triggers>
>                     <asp:AsyncPostBackTrigger ControlID="btnEnlarge"
> EventName="Click" />
>                 </Triggers>
>             </asp:UpdatePanel>
>         </div>
>     </form>
> </body>
> </html>
>
>
> 4) Default.aspx.vb
>
> Partial Class _Default
>     Inherits System.Web.UI.Page
>
>     Protected Sub Page_Load(ByVal sender As Object, ByVal e As
> System.EventArgs) Handles Me.Load
>
>     End Sub
>
>     Protected Sub btnEnlarge_Click(ByVal sender As Object, ByVal e As
> System.EventArgs) Handles btnEnlarge.Click
>         AJAXPlayAsset1.PlayURL = "Track13.mp3"
>     End Sub
> End Class
>
>
> Regards,
> Walter Wang (waw***@online.microsoft.com, remove 'online.')
> Microsoft Online Community Support
>
> ==================================================
> When responding to posts, please "Reply to Group" via your newsreader so
> that others may learn and benefit from your issue.
> ==================================================
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

26 Feb 2007 12:37 PM

Walter Wang [MSFT]

Hi Jerry,

I'm sorry that I didn't noticed at first that your original requirement is
to use <embed> tag instead of <object>.

Based on my test, the <embed> should be working for AJAX:

1. This is the UserControl:

<%@ Control Language="VB" ClassName="WebUserControl" %>

<script runat="server">
    Public Property PlayURL() As String
        Get
            Return IIf(ViewState("PlayURL") Is Nothing, "track09.mp3",
CType(ViewState("PlayURL"), String))
        End Get
        Set(ByVal value As String)
            ViewState("PlayURL") = value
        End Set
    End Property

    Protected Overrides Sub Render(ByVal writer As
System.Web.UI.HtmlTextWriter)
        writer.Write(String.Format("<embed src='{0}' />", PlayURL))
    End Sub

</script>

2. This is the test WebForm:

<%@ Page Language="VB" %>

<%@ Register Src="WebUserControl.ascx" TagName="WebUserControl"
TagPrefix="uc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As
System.EventArgs)
        Me.WebUserControl1.PlayURL = "Track13.mp3"
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>

    </div>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <uc1:WebUserControl ID="WebUserControl1" runat="server" />
                <asp:Button ID="Button1" runat="server"
OnClick="Button1_Click" Text="Button" />
            </ContentTemplate>
        </asp:UpdatePanel>
    </form>
</body>
</html>

Please test this on your side and let me know the result. Thanks.

Regards,
Walter Wang (waw***@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

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26 Feb 2007 2:47 PM

Jerry C

Walter,

Thank you for the reply. I tested this and it works. I will try to
intergrate it into the application and see if it works there.

Thank you
Jerry

--
Jerry

Show quoteHide quote

"Walter Wang [MSFT]" wrote:

> Hi Jerry,
>
> I'm sorry that I didn't noticed at first that your original requirement is
> to use <embed> tag instead of <object>.
>
> Based on my test, the <embed> should be working for AJAX:
>
>
> 1. This is the UserControl:
>
> <%@ Control Language="VB" ClassName="WebUserControl" %>
>
> <script runat="server">
>     Public Property PlayURL() As String
>         Get
>             Return IIf(ViewState("PlayURL") Is Nothing, "track09.mp3",
> CType(ViewState("PlayURL"), String))
>         End Get
>         Set(ByVal value As String)
>             ViewState("PlayURL") = value
>         End Set
>     End Property
>
>     Protected Overrides Sub Render(ByVal writer As
> System.Web.UI.HtmlTextWriter)
>         writer.Write(String.Format("<embed src='{0}' />", PlayURL))
>     End Sub
>
> </script>
>
>
> 2. This is the test WebForm:
>
> <%@ Page Language="VB" %>
>
> <%@ Register Src="WebUserControl.ascx" TagName="WebUserControl"
> TagPrefix="uc1" %>
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
>
> <script runat="server">
>
>     Protected Sub Button1_Click(ByVal sender As Object, ByVal e As
> System.EventArgs)
>         Me.WebUserControl1.PlayURL = "Track13.mp3"
>     End Sub
> </script>
>
> <html xmlns="http://www.w3.org/1999/xhtml" >
> <head runat="server">
>     <title>Untitled Page</title>
> </head>
> <body>
>     <form id="form1" runat="server">
>     <div>
>         <asp:ScriptManager ID="ScriptManager1" runat="server">
>         </asp:ScriptManager>
>
>     </div>
>         <asp:UpdatePanel ID="UpdatePanel1" runat="server">
>             <ContentTemplate>
>                 <uc1:WebUserControl ID="WebUserControl1" runat="server" />
>                 <asp:Button ID="Button1" runat="server"
> OnClick="Button1_Click" Text="Button" />
>             </ContentTemplate>
>         </asp:UpdatePanel>
>     </form>
> </body>
> </html>
>
>
> Please test this on your side and let me know the result. Thanks.
>
>
> Regards,
> Walter Wang (waw***@online.microsoft.com, remove 'online.')
> Microsoft Online Community Support
>
> ==================================================
> When responding to posts, please "Reply to Group" via your newsreader so
> that others may learn and benefit from your issue.
> ==================================================
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>