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Selected Index Changed Event Problem in ASP.net

If you are not using AJAX Check that the DropDown List Should be enabled with postback=true for selected index changed event

Coming to me,
I had a problem of using Dropdown List With AJAX

After fighting for several hours.
I found that the following nodes are missing in web.config
check whether the following nodes are present in the web.config under <configuration> node

    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
        <assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="" newVersion=""/>
        <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="" newVersion=""/>

After adding these nodes it worked smoothly....
But it has killed 5-6 hours of time..


nonnux said...

didn't worked for me... SelectedIndexChanged not firing

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