PartialUpdatePanel

Updated Release: PartialUpdatePanel 1.6 (Nov 13, 2008)

iucon — Thu, 13 Nov 2008 16:12:47 GMT

The PartialUpdatePanel provides real partial rendering of ASP.NET pages.
By using this control you can get a performance improvement compared to ASP.NET AJAX UpdatePanel, because not all page data are transfered. Only a minimal set of data is transfered between client and server to let your UserControl run and make it fully functionable.

Usage scenarious

Example scenarious where you better use the PartialUpdatePanel might be

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

History

Version 1.6
Special thanks to grown for his excellent work on the PartialUpdatePanel!
Added encryption support for UserControl path
Added support for custom ScriptManager types (includes ToolkitScriptManager)
Added support for ToolkitScriptManager.CombineScriptsHandlerUrl
Change UserControlPath using JavaScript during runtime
Manipulate Parameters serverside during roundtrip
Fixed issue using validators and rendering in Clientside mode
Fixed a bug with recreating components
Added some more demos to show the new features

Attention: If you use this version, you have to make some changes in your code:
- web.config: Add (with user defined value of course)
<appSettings>
<add key="PartialUpdatePanel.EncryptionKey" value="k39#9sn1"/>
</appSettings>
- Using the parameter collection changed.
new iucon.web.Controls.ParameterCollection() is no longer supported
use
iucon.web.Controls.ParameterCollection.Instance instead

Version 1.5.4
Fixed a bug I produced in the previous release
Fixed a bug with select-controls that allow multiple selection

Version 1.5.3
Producing less ViewState data for OnClientClick properties

Version 1.5.2
Fixed a bug with supporting the state of RadioButtons
Added support for globalization
Showing up extended exception information

Version 1.5.1
Added support for ScriptManager.RegisterDataItem

Version 1.5
Added support for ASP.NET AJAX Control Toolkit
Registered client script includes working
Global unique control IDs are generated to prevent conflicts when using multiple PartialUpdatePanels on the same page

Version 1.4
ControlState is now transfered correctly between postbacks using a custom PageStatePersister
New property DisplayLoadingAfter prevents flickering for fast loading controls
New property RenderAfterPanel allows to load controls in a sequential order

Version 1.3
Added support for ScriptManager.RegisterStartupScript to run JScript code after partial PostBacks
Parameters are no more transported via HTTP-GET but via HTTP-POST
Output bugfix: the <form>-Tag was rendered more than once when using controls with the InitialRenderMode Serverside.

Version 1.2.1
Minor bugfix: viewstate of initially serverside rendered controls were not handled correctly on normal postbacks

Version 1.2
Added the property InitialRenderBehaviour to PartialUpdatePanel
Added IRequiresSessionState to PartialUpdatePanelHandler
UrlEncode the viewstate in PanelHostPage

Released: PartialUpdatePanel 1.6 (Nov 13, 2008)

Thu, 13 Nov 2008 16:12:47 GMT

Usage scenarious

Example scenarious where you better use the PartialUpdatePanel might be

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

History

Updated Wiki: Home

iucon — Thu, 13 Nov 2008 16:11:58 GMT

Project Description
The ASP.NET AJAX UpdatePanel requires the whole page to render, but sends only the contents of the UpdatePanel to the client.
The goal of this project is the development of a component that really renders only the partial contents. This will increase the rendering speed and unload server resources.

If you want to support the development of PartialUpdatePanel, please click the following link

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=457272

Usage scenarious
Example scenarious where you better use the PartialUpdatePanel might be

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

Technologies used

C#
ASP.NET
ASP.NET AJAX
.NET Framework 3.5

Things supported so far
The PartialUpdatePanel supports

Maintaining the viewstate. The viewstate of the partial content will be maintained during postbacks. Because evey PatialUpdatePanel manages it's own viewstate, less data is transfered between client and server than the AJAX UpdatePanel does.
PostBacks from childcontrols. Full postback support with event handling.
Parameters can be declared which will be transfered as GET-Parameters to the control. These parameters can be modified during runtime via JScript.
Autorefreshing the content every n milliseconds
Render the control initially synchronous (with all other controls on the page) or asynchronous (the page is sent to the client which requests the control to load)
Automatically execute JavaScript snippets from your Control via ScriptManager.RegisterStartupScript or ScriptManager.RegisterClientScriptBlock
Set a timeout after the LoadingTemplate should be shown
You can use controls from the AJAX Control Toolkit inside the PartialUpdatePanel
Globalization
Encrypt path to your UserControl
Using custom ScriptManagers (including ToolkitScriptManager)
Using ToolkitScriptManager.CombineScriptsHandlerUrl
Change UserControl path during runtime via JavaScript

Find a detailed description of the source code here: http://www.codeproject.com/KB/ajax/PartialUpdatePanel.aspx

Contact me at my blog http://www.iucon.biz/blog

New Post: Change Control Dynamically

iucon — Thu, 13 Nov 2008 16:10:02 GMT

Hi mobetta,

the new release is now online.
Be sure to set the property EncryptUserControlPath to false if you want to change the path dynamically.

Regards,
Stefan

Updated Release: PartialUpdatePanel 1.6 (Nov 13, 2008)

iucon — Thu, 13 Nov 2008 16:08:30 GMT

Usage scenarious

Example scenarious where you better use the PartialUpdatePanel might be

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

History

Version 1.6
Special thanks to grown for his excellent work on the PartialUpdatePanel!
Added encryption support for UserControl path
Added support for custom ScriptManager types (includes ToolkitScriptManager)
Added support for ToolkitScriptManager.CombineScriptsHandlerUrl
Change UserControlPath using JavaScript during runtime
Manipulate Parameters serverside during roundtrip
Fixed issue using validators and rendering in Clientside mode
Fixed a bug with recreating components

Attention: If you use this version, you have to make some changes in your code:
- web.config: Add (with user defined value of course)
<appSettings>
<add key="PartialUpdatePanel.EncryptionKey" value="k39#9sn1"/>
</appSettings>
- Using the parameter collection changed.
new iucon.web.Controls.ParameterCollection() is no longer supported
use
iucon.web.Controls.ParameterCollection.Instance instead

Version 1.5.4
Fixed a bug I produced in the previous release
Fixed a bug with select-controls that allow multiple selection

Version 1.5.3
Producing less ViewState data for OnClientClick properties

Version 1.5.2
Fixed a bug with supporting the state of RadioButtons
Added support for globalization
Showing up extended exception information

Version 1.5.1
Added support for ScriptManager.RegisterDataItem

Version 1.5
Added support for ASP.NET AJAX Control Toolkit
Registered client script includes working
Global unique control IDs are generated to prevent conflicts when using multiple PartialUpdatePanels on the same page

Version 1.4
ControlState is now transfered correctly between postbacks using a custom PageStatePersister
New property DisplayLoadingAfter prevents flickering for fast loading controls
New property RenderAfterPanel allows to load controls in a sequential order

Version 1.3
Added support for ScriptManager.RegisterStartupScript to run JScript code after partial PostBacks
Parameters are no more transported via HTTP-GET but via HTTP-POST
Output bugfix: the <form>-Tag was rendered more than once when using controls with the InitialRenderMode Serverside.

Version 1.2.1
Minor bugfix: viewstate of initially serverside rendered controls were not handled correctly on normal postbacks

Version 1.2
Added the property InitialRenderBehaviour to PartialUpdatePanel
Added IRequiresSessionState to PartialUpdatePanelHandler
UrlEncode the viewstate in PanelHostPage

Released: PartialUpdatePanel 1.6 (Nov 13, 2008)

Thu, 13 Nov 2008 16:08:30 GMT

Usage scenarious

Example scenarious where you better use the PartialUpdatePanel might be

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

History

Version 1.6
Special thanks to grown for his excellent work on the PartialUpdatePanel!
Added encryption support for UserControl path
Added support for custom ScriptManager types (includes ToolkitScriptManager)
Added support for ToolkitScriptManager.CombineScriptsHandlerUrl
Change UserControlPath using JavaScript during runtime
Manipulate Parameters serverside during roundtrip
Fixed issue using validators and rendering in Clientside mode
Fixed a bug with recreating components

Attention: If you use this version, you have to make some changes in your code:
- web.config: Add (with user defined value of course)
<appSettings>
<add key="PartialUpdatePanel.EncryptionKey" value="k39#9sn1"/>
</appSettings>
- Using the parameter collection changed.
new iucon.web.Controls.ParameterCollection() is no longer supported
use
iucon.web.Controls.ParameterCollection.Instance instead

Version 1.5.4
Fixed a bug I produced in the previous release
Fixed a bug with select-controls that allow multiple selection

Version 1.5.3
Producing less ViewState data for OnClientClick properties

Version 1.5.2
Fixed a bug with supporting the state of RadioButtons
Added support for globalization
Showing up extended exception information

Version 1.5.1
Added support for ScriptManager.RegisterDataItem

Version 1.5
Added support for ASP.NET AJAX Control Toolkit
Registered client script includes working
Global unique control IDs are generated to prevent conflicts when using multiple PartialUpdatePanels on the same page

Version 1.4
ControlState is now transfered correctly between postbacks using a custom PageStatePersister
New property DisplayLoadingAfter prevents flickering for fast loading controls
New property RenderAfterPanel allows to load controls in a sequential order

Version 1.3
Added support for ScriptManager.RegisterStartupScript to run JScript code after partial PostBacks
Parameters are no more transported via HTTP-GET but via HTTP-POST
Output bugfix: the <form>-Tag was rendered more than once when using controls with the InitialRenderMode Serverside.

Version 1.2.1
Minor bugfix: viewstate of initially serverside rendered controls were not handled correctly on normal postbacks

Version 1.2
Added the property InitialRenderBehaviour to PartialUpdatePanel
Added IRequiresSessionState to PartialUpdatePanelHandler
UrlEncode the viewstate in PanelHostPage

Created Release: PartialUpdatePanel 1.6 (Nov 13, 2008)

iucon — Thu, 13 Nov 2008 16:06:08 GMT

Usage scenarious

Example scenarious where you better use the PartialUpdatePanel might be

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

History

Version 1.6
Special thanks to grown for his excellent work on the PartialUpdatePanel!
Added encryption support for UserControl path
Added support for custom ScriptManager types (includes ToolkitScriptManager)
Added support for ToolkitScriptManager.CombineScriptsHandlerUrl
Change UserControlPath using JavaScript during runtime
Manipulate Parameters serverside during roundtrip
Fixed issue using validators and rendering in Clientside mode
Fixed a bug with recreating components

Attention: If you use this version, you have to make some changes in your code:
- web.config: Add (with user defined value of course)
<appSettings>
<add key="PartialUpdatePanel.EncryptionKey" value="k39#9sn1"/>
</appSettings>
- Using the parameter collection changed.
new iucon.web.Controls.ParameterCollection() is no longer supported
use
iucon.web.Controls.ParameterCollection.Instance instead

Version 1.5.4
Fixed a bug I produced in the previous release
Fixed a bug with select-controls that allow multiple selection

Version 1.5.3
Producing less ViewState data for OnClientClick properties

Version 1.5.2
Fixed a bug with supporting the state of RadioButtons
Added support for globalization
Showing up extended exception information

Version 1.5.1
Added support for ScriptManager.RegisterDataItem

Version 1.5
Added support for ASP.NET AJAX Control Toolkit
Registered client script includes working
Global unique control IDs are generated to prevent conflicts when using multiple PartialUpdatePanels on the same page

Version 1.4
ControlState is now transfered correctly between postbacks using a custom PageStatePersister
New property DisplayLoadingAfter prevents flickering for fast loading controls
New property RenderAfterPanel allows to load controls in a sequential order

Version 1.3
Added support for ScriptManager.RegisterStartupScript to run JScript code after partial PostBacks
Parameters are no more transported via HTTP-GET but via HTTP-POST
Output bugfix: the <form>-Tag was rendered more than once when using controls with the InitialRenderMode Serverside.

Version 1.2.1
Minor bugfix: viewstate of initially serverside rendered controls were not handled correctly on normal postbacks

Version 1.2
Added the property InitialRenderBehaviour to PartialUpdatePanel
Added IRequiresSessionState to PartialUpdatePanelHandler
UrlEncode the viewstate in PanelHostPage

Closed Issue: Clear ViewState by calling set_UserControlPath()

iucon — Thu, 13 Nov 2008 15:53:12 GMT

Call set_UserControlPath() manually will cause a ViewState violation, because the new control does not have the same structure as the old one.
So the ViewState has to be cleared before the next refresh occurs.

Source code checked in, #25940

iucon — Thu, 13 Nov 2008 15:53:10 GMT

Massive improvements, Support for custom ScriptManagers, two way parameter changing, Encryption support, and much more

New Post: Change Control Dynamically

mobetta — Sun, 09 Nov 2008 17:13:40 GMT

Thanks Stefan

I look foward to the next release. Great work.

--- On Wed, 10/22/08, iucon wrote:

From: iucon
Subject: Re: Change Control Dynamically [PartialUpdatePanel:38134]
To: nguijoel@yahoo.com
Date: Wednesday, October 22, 2008, 3:59 AM

#yiv1460847730 {font-family:Verdana;font-size:0.75em;}#yiv1460847730 #ThreadNotificationFooter{border-top:1px solid #ccc;color:gray;}#yiv1460847730 #ThreadNotificationPostBody{Margin-Bottom:2em;} #yiv1460847730 {font-family:Verdana;font-size:0.75em;}#yiv1460847730 #ThreadNotificationFooter{color:gray;border-top:1px solid #ccc;}#yiv1460847730 #ThreadNotificationPostBody{Margin-Bottom:2em;}
From: iucon

Hi mobetta,

using set_UserControlPath() is the correct way.
If you changed the user control, you have to clear the ViewState of the old one. Unfortunally I have to method to achieve this.
I'll put your request to the Issue Tracker and add this functionality to the next release.

Regards,
Stefan

Created Issue: Clear ViewState by calling set_UserControlPath()

iucon — Wed, 22 Oct 2008 08:00:36 GMT

New Post: Change Control Dynamically

iucon — Wed, 22 Oct 2008 07:59:16 GMT

Hi mobetta,

using set_UserControlPath() is the correct way.
If you changed the user control, you have to clear the ViewState of the old one. Unfortunally I have to method to achieve this.
I'll put your request to the Issue Tracker and add this functionality to the next release.

Regards,
Stefan

New Post: Change Control Dynamically

mobetta — Tue, 21 Oct 2008 11:52:59 GMT

Hi' I am trying to load the ascx control dynamically via javascript based on a variable but when I attempt to change the control, I get a Failed to load viewstate. "The control tree into which viewstate is being loadedmust match the control tree that was used to save viewstate during the previousrequest..." Is it possible to change the ascx control using set_UserControlPath()? If so how? Anyone Please.

Updated Wiki: Home

iucon — Mon, 20 Oct 2008 16:14:30 GMT

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

Technologies used

C#
ASP.NET
ASP.NET AJAX
.NET Framework 3.5

Things supported so far
The PartialUpdatePanel supports

Maintaining the viewstate. The viewstate of the partial content will be maintained during postbacks. Because evey PatialUpdatePanel manages it's own viewstate, less data is transfered between client and server than the AJAX UpdatePanel does.
PostBacks from childcontrols. Full postback support with event handling.
Parameters can be declared which will be transfered as GET-Parameters to the control. These parameters can be modified during runtime via JScript.
Autorefreshing the content every n milliseconds
Render the control initially synchronous (with all other controls on the page) or asynchronous (the page is sent to the client which requests the control to load)
Automatically execute JavaScript snippets from your Control via ScriptManager.RegisterStartupScript or ScriptManager.RegisterClientScriptBlock
Set a timeout after the LoadingTemplate should be shown
You can use controls from the AJAX Control Toolkit inside the PartialUpdatePanel
Globalization

Find a detailed description of the source code here: http://www.codeproject.com/KB/ajax/PartialUpdatePanel.aspx

Contact me at my blog http://www.iucon.biz/blog

New Post: iis 7 server configuration

iucon — Mon, 20 Oct 2008 08:06:44 GMT

Hi,

I havn't much experience with IIS 7 yet, because we are still running Windows Server 2003.
But I think a solution my be the following:

Using IIS 7 you have to configure the <system.webServer> section in your web.config.
This section makes most of the settings in <system.web> obsolete.

So try to add the handler in <system.webServer>:

<system.webServer>
    <handlers>
        <add verb="*" path="PartialUpdatePanelLoader.ashx" validate="false" type="iucon.web.Controls.PartialUpdatePanelHandler"/>
    </handler>
</system.webServer>

Please let me know if this works.

Best regards,
Stefan

New Post: iis 7 server configuration

theoeeman — Thu, 16 Oct 2008 11:57:20 GMT

Hi. We have already installed a small demo project on a remote server running iis6 which works correctly. We have installed a trial copy of Windows Server 2008 with iis7 and the demo no longer functions. The operation crashes when updating the PartialUpdatePanel with an error 'Resource cannot be found'. 'http:404' requested url /partialupdatepanelloader.ashx'

it would appear that it is a server configuraration error. Can anybody have any experience of iis7 configuration or the partialupdatepanel help us with this problem.

We are running .net 3.5 with sp1

Thank you

Updated Wiki: Home

iucon — Wed, 15 Oct 2008 14:41:32 GMT

Project Description
The ASP.NET AJAX UpdatePanel requires the whole page to render, but sends only the contents of the UpdatePanel to the client.
The goal of this project is the development of a component that really renders only the partial contents. This will increase the rendering speed and unload server resources.

If you want to support the development of PartialUpdatePanel, please klick the following link

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=457272

Usage scenarious
Example scenarious where you better use the PartialUpdatePanel might be

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

Technologies used

C#
ASP.NET
ASP.NET AJAX
.NET Framework 3.5

Things supported so far
The PartialUpdatePanel supports

Maintaining the viewstate. The viewstate of the partial content will be maintained during postbacks. Because evey PatialUpdatePanel manages it's own viewstate, less data is transfered between client and server than the AJAX UpdatePanel does.
PostBacks from childcontrols. Full postback support with event handling.
Parameters can be declared which will be transfered as GET-Parameters to the control. These parameters can be modified during runtime via JScript.
Autorefreshing the content every n milliseconds
Render the control initially synchronous (with all other controls on the page) or asynchronous (the page is sent to the client which requests the control to load)
Automatically execute JavaScript snippets from your Control via ScriptManager.RegisterStartupScript or ScriptManager.RegisterClientScriptBlock
Set a timeout after the LoadingTemplate should be shown
You can use controls from the AJAX Control Toolkit inside the PartialUpdatePanel
Globalization

Find a detailed description of the source code here: http://www.codeproject.com/KB/ajax/PartialUpdatePanel.aspx

Contact me at my blog http://www.iucon.biz/blog

New Post: Several improvements

iucon — Fri, 10 Oct 2008 16:39:52 GMT

Hi grown,

your improvements and fixes sound really good!
I have much work to do in my job so I have less time to work on the PartialUpdatePanel than I would like to have.

I am highly interested in your code and would be happy if you could sent it to me.

Thank you in advance very much for your help in improving the PartialUpdatePanel!

Best regards,
Stefan

New Post: Several improvements

grown — Mon, 06 Oct 2008 08:52:01 GMT

Hi Stefan,

As I mentioned one of my previous threads, I decided to use your panel in some of scenarios in my App. During this, I faced several problems and tried to fix them. Heer is the list of what I found and fixed:

- Sending of the UserControl name in plain text can be dangerous. In this case, if someone knows path to some "secret" UserControl - he can load it by injecting the desired path to javascript. There is no any check on the server and the panel will successfully load this control. I've added encryption support to your product to minimize this risk.

- If validators are placed inside of UserControl - they're raised during the initial control loading, since request is treated as postback. I've added a workaround to fix this defect (added a dummy __EVENTTARGET argument to the request).

- There was a possibility to send parameters from a client to a server, but there wasn't any possibility to change a parameter on the server and send them back to the client. I needed such behaviour and added support of "two-way" parameters.

- There was a problem when PartialUpdatePanel was placed inside of Microsoft UpdatePanel. This also was fixed.
- There was a problem when AjaxControlToolkit.ToolkitScriptManager was used, especially when CombineScripts mode of this control is enabled. PartialUpdatePanel tried to load necessary scripts, even if they were already loaded by the parent page. As a result, we were getting javascript error. I fixed this problem.
- There was an error that when new content was received from the server, the existing content wasn't disposed, sometimes I got situations, when one control was alive and there was attempt to create it again (component with the same ID). Javascript was raising exception. I've added functionality of destroying an elements' tree before loading new content on the client (_destroyTree method).

I could forget to mentiod something, if so - update you later :). Please let me know if you're interested in updated source code (probably you would like to include it in one of your releases). If so, please reply me to this message please and I'll send you the archive.

Updated Wiki: Home

iucon — Fri, 03 Oct 2008 09:56:00 GMT

Project Description
The ASP.NET AJAX UpdatePanel requires the whole page to render, but sends only the contents of the UpdatePanel to the client.
The goal of this project is the development of a component that really renders only the partial contents. This will increase the rendering speed and unload server resources.

Usage scenarious
Example scenarious where you better use the PartialUpdatePanel might be

Autonomous sections of your page that require PostBack-support but not the environment information of the whole page (e.g. data lists with paging support where the user can browse through news, feeds, mails, etc.)
User feedback when your control have to complete long operations. In this case use a PartialUpdatePanel with render method "Clientside". The surrounding page will be displayed with a waiting message. The user get's feedback that something is going on he has to wait for.

Technologies used

C#
ASP.NET
ASP.NET AJAX
.NET Framework 3.5

Things supported so far
The PartialUpdatePanel supports

Maintaining the viewstate. The viewstate of the partial content will be maintained during postbacks. Because evey PatialUpdatePanel manages it's own viewstate, less data is transfered between client and server than the AJAX UpdatePanel does.
PostBacks from childcontrols. Full postback support with event handling.
Parameters can be declared which will be transfered as GET-Parameters to the control. These parameters can be modified during runtime via JScript.
Autorefreshing the content every n milliseconds
Render the control initially synchronous (with all other controls on the page) or asynchronous (the page is sent to the client which requests the control to load)
Automatically execute JavaScript snippets from your Control via ScriptManager.RegisterStartupScript or ScriptManager.RegisterClientScriptBlock
Set a timeout after the LoadingTemplate should be shown
You can use controls from the AJAX Control Toolkit inside the PartialUpdatePanel
Globalization

Find a detailed description of the source code here: http://www.codeproject.com/KB/ajax/PartialUpdatePanel.aspx

Contact me at my blog http://www.iucon.biz/blog