two different version of AjaxControlToolkit in same web application

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ajaxcontroltoolkit

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two different version of AjaxControlToolkit in same web application

I have two different version of AjaxControlToolkit dll and I have added reference of both dll in my web application. I also set up control tagprefix in web.config.

Now one of the page is using 1.0 version and I want to use 3.0 version in another page. I am getting following error.

"The server tag 'ajaxToolkit:SliderExtender' is ambiguous. Please modify the associated registration that is causing ambiguity and pick a new tag prefix."

Any idea where I am doing wrong?

+1 A:

you can not use two different version Ajax toolkit in single solution website application.

just use single Ajax toolkit version.

AjmeraInfo 2010-03-15 19:14:20

then what is side by side assembly execution? Isn't it to run multiple version of the same DLL side by side?

shailesh 2010-03-15 19:20:09

My recommendation is to use the most updated version of the tool kit, why would you need to use the older one on a separate page?

Woot4Moo 2010-03-15 19:20:43

Because the I do have third party page that I have integrated on my web application that uses latest version and my other pages still uses 1.0 version. I am little bit worried that if I change reference to use 3.5 version to my pages, it might break even though it supports back ward compatibility. I wanted to understand what is side by side assembly execution? Isn't it to run multiple version of the same DLL side by side? Why compiler doesn't know what dll I try to use If I have given different tagprefix for both DLL?

shailesh 2010-03-15 19:35:58

Does adding a <%@ Register... with the toolkit version 3.0 as Assembly attribute to your page help?

EDIT: Personally, I have not done something like this.
Is it possible for you to change the tagPrefix to some other name to see if it works?
Where are the DLLs for toolkit installed? GAC?

shahkalpesh 2010-03-15 19:27:16

I added that in web.config. And also I tried adding on page but still same issue

shailesh 2010-03-15 19:39:48

I have specify different tagePrefix for both of the DLL and I have to otherwise it will throw another compiler error because compiler gets confused where to look for. And Yes I have installed in GAC and also tried having in Bin folder. but no luck...

shailesh 2010-03-15 20:00:11

Ok.. There is no way to run two different version of same assembly under same application. Either I have to compile the assembly source code into different name or have to upgrade my web application to use only one version.http://patelshailesh.com/index.php/is-ambiguous-in-the-namespace-ajaxcontroltoolkit

shailesh 2010-03-24 20:22:21

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two different version of AjaxControlToolkit in same web application

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