very weird problem

I have installed lastest ajax and also toolkit too. I created master page and default aspx page, then I put my scriptmanager inside the master page and update panel inside the default page, I didn't choose ajax enable website because I have a hard time to place my existing web.config files, assemblies, connection strings to right place of the enable ajax's web.config file. Maybe I should though, with this error.

I get errors sometimes with all the controls in update panel, is not recognized my html tag, even though my controls are declared, it says it is not, But it builds application suscessfully. I made sure I put this

<%@dotnet.itags.org.RegisterAssembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"Namespace="System.Web.UI"TagPrefix="asp" %>

to my page and also in web.config file under config section also assemblies too. Thing is I think every time I backup my website to my documents, for some reason a while later this happens. I even reset my iis to clear my temp folder of asp.net too. Still. Why this is happening ?

You'll also need an reference to the following assemblies:

- AjaxToolKit.dll
- System.Web.Extensions.dll

You can do this using right click on your project, "Add Reference" and point to this DLL's

On bin folder, I have got these ar, cs, de, es, fr,he,hi,it,ja,ko,nl,pt, ru,tr-TR,zh-CHS, zh_CHT all
thas AjaxControlToolkit.resources.dll in it.
Then AJaxCotrolKit.dll under neat AjaxControlKit.dll.refresh and AjaxControlKit.pdb

Microsoft.Web.UI.WebControls.dll with Microsoft.Web.UI.WebControls.dll.refresh

I have these dll on my bin now, and still problem

I had these dll on program file but not pointing to my project. I am right clicking my project and add references, choosing these dll and adding but it is not showing under my bin folder for some reason, can someone tell me steps to how to add these dlls to my projects.

Is anybody didn't have this problem? I go crazy here with this..

this was nothing to do with ajax, it was copy paste problem..

Very weird error. Ajax controls call default.aspx

I have a few pages in my site... and for some reason, if there's any ajax controls on the page, it calls default.aspx and runs the code every time any aspx page with an ajax control exists on it. Problem is, default.aspx resets my session variables.

Why does Ajax call the default.aspx page code? It only runs the CS file... it doesn't actually show the default.aspx page.

I doubt it calls it. Do you have a component in your site somewhere that's got a url of "/" attached to it somewhere, and that's invoking the default page?

it only seemed to only happen when I have Certain Ajax controls on the page. Note, it only does it with Internet Explorer 6 and 7. Firefox seems to be fine.

For example, I have a collapsible PAnel in each row of a Gridview. That is in an UpdatePanel. When the Gridview is populated (and I have a breakpoint on the default.aspx.cs file), it goes through that code. Well, I set my session variables on that page, so in essence it resets them.

It seems like it does this AFTER the page is loaded, because the labels that show content based on those session variables aren't updated until I go to a new page.

It only does this when I have a collapsible panel in IE. The panel is set to collapsed.

Actually, it appears that AJAX is clearing the Session Variables. I don't know where it's doing this, though.

Very Weird Problem with Cascading DropDown

After some version updates both in AJAX.NET and Control Toolkit, I found the Cascading DropDown does not work in my project. The appearance is: the DropDown is simply blank. Even the PromptText is not shown up in the page. DropDown is not populated while the web service is working fine. No error reports to me.

But at mean time, the Sample project of Cascading DropDown page works fine on the same machine.

If I copy my code into the Sample Project, it works. This means the code is correct. And web service is always OK if open asmx page and test it.

My project was created by selecting template of AJAX Enabled website, and then copy the AjaxControlToolkit.dll from Toolkit Sample project Bin folder to my project Bin folder. And then add reference to it. Very standard way.

I compared the difference of the sample project and my project, basically the reference. The only difference is that, the AjaxControlToolkit.dll in my project is versioned as "Auto Update", while in sample project it's versioned as 1.0.61121.0. BUT I DON"T KNOW HOW TO CREATE A PROJECT WITH REFERENCE OF THIS FILE TO BE VERSIONED AS 1.0.61121.0.

For your info, my code is mainly posted as following:

<!-- for aspx code: -->

<asp:DropDownList ID="DropDownList1" runat="server" Width="200px"></asp:DropDownList>
<ajaxToolkit:CascadingDropDown ID="CascadingDropDown1" runat="server" TargetControlID="DropDownList1" Category="Carrier" PromptText="Please select a carrier" LoadingText="[Loading carriers...]" ServicePath="uscarrier.asmx" ServiceMethod="ReturnUSCarriers"></ajaxToolkit:CascadingDropDown>

// webservice code
[WebMethod]
[Microsoft.Web.Script.Services.ScriptMethod()]
public CascadingDropDownNameValue[] ReturnUSCarriers(string knownCategoryValues, string category)
{
SqlConnection cnn = new SqlConnection(ConfigurationManager.ConnectionStrings["CMSConnectionString_Prod"].ConnectionString);
SqlCommand cmd = cnn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "select distinct Name, OperatorID from [CMS_Carriers] where OperatorID like '3%' and IsActive = 1";
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = cmd;
DataSet ds = new DataSet();
da.Fill(ds, "Carriers");

List<CascadingDropDownNameValue> carriervalues = new List<CascadingDropDownNameValue>();

for (int i = 0; i < ds.Tables["Carriers"].Rows.Count; i++)
{
DataRow dr = ds.Tables["Carriers"].Rows[i];
carriervalues.Add(new CascadingDropDownNameValue((string)dr["Name"], dr["MBloxOperatorID"].ToString()));
}
return carriervalues.ToArray();
}

The ReturnUSCarriers method needs to be static. (This is covered in the ASP.NET AJAX migration docs as well ashttp://blogs.msdn.com/sburke/archive/2006/10/21/hint-components-that-use-web-services-with-asp-net-ajax-v1-0-beta.aspx.)

David:

Thanks for your reply. I set the method to be static, and it still does not work.

If this is a page method (looks like it is), then you may want to try removing the ServicePath property entirely.
my cascading dropdowns are no longer working as well. I am calling an external web service with the same method signiture as above.
also, this was after I upgraded to the RC and updated control kit.

figured it out, for some reason I was missing this in my web.config:

<addverb="GET,HEAD"path="ScriptResource.axd"type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"validate="false"/>

Shoot, I just realized those were needed for the Ajax to work in IE. And by me removing those lines from the web.config it just does a normal postback and not an asynchronous call. That is why it worked for me. So really nothing has changed. I am back to nothing on why the response.redirect() doesn't work. You guys mentioned that you took the code and were able to get the response.redirect() to work. I'm not sure what in my environment could be any different. I'm running this off of localhost and I do not have IIS running.

Visual Studio wont recognize some AJAX components when there is a master page

This is a really weird thing. I have installed AJAX and the toolkits and the validators, and everything was working fine. Then, suddenly, Visual Studio won't let me switch to design view b/c the script Manager and the update panels are now "not known elements," and so are all the labels, panels, dropdownlists, etc inside the update panels. Oddly enough, the components in the AJAX toolkit are still recognized just fine. when this problem first started happening, i would click over to the master page and click back to the aspx page and everything was fine. Now that doesn't even work. And the craziest part is that the web site runs just fine when I debug it, AJAX functionality and all!

I would have blamed this on the way I installed the AJAX framework, but this only happens on pages with master pages.

Does anyone have any experience with this? Or is it just my machine? No one else here at work is having this problem, but I am the only one who is really using AJAX.

Any ideas would be welcome. Thanks in advance

Hi,

As far as I know, the error message indicates the issue is related to permission. It seems your ASP.NET applications run in partial trust. This is configured through the <trust level="xxx" /> setting in web.config or machine.config. Please change the "xxx" to medium and try again to figure out whether the problem still occurs.

Best Regards

Thanks for your suggestion. I don't even have any trust level permissions in my web.config files, so I am assuming that the problem is in my machine.config file. But before I go messing around in there, I would like to try to override it in the web.config. This is what I have in my web.config. But the error I am getting on the page declaration of the default.aspx page is "Unable to read the security policy file for trust level 'medium'." Where are the policy files located?

<location allowOverride="false">
<system.web>
<securityPolicy>
<trustLevel name="Full" policyFile="internal"/>
<trustLevel name="High" policyFile="web_hightrust.config"/>
<trustLevel name="Medium" policyFile="web_mediumtrust.config"/>
<trustLevel name="Low" policyFile="web_lowtrust.config"/>
<trustLevel name="Minimal" policyFile="web_minimaltrust.config"/>
</securityPolicy>
<trust level="medium" originUrl=""/>
</system.web>
</location>