leeappdalecom said:
I have a trigger on the updatepanel for the external dropdownlist.

Turns out the code is fine, my web.config file has somehow been replaced with a standard one and didn't contain the ajax stuff!

I had a bad day yesterday Perplexed

hi leeappdalecom,

 

I am also facing the same problem , ca you please tell me what changes you made to your web config file I am presently using ajax toolkit version 3.5.

and my web confiig fiel  has the following settings:

<compilation debug="true">
            <assemblies>
                <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
                <add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
                <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
                <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
                <add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
                <add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
            </assemblies>
        </compilation>

 

can you please guide me wth your solution