.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

AjaxToolkit's CascadingDropDown control is throwing Method Error 404 in Hybrid system environment (

Posted By:      Posted Date: September 08, 2010    Points: 0   Category :ASP.Net
Hi Experts, We have an Asp.net web application, which is deployed in shared hosting environment. On shared hosting environment initial request to this web application is handled by Linux server and then based on the requested page the Linux server is redirecting request to web server on windows OS. Now, in our web application, we have used ajaxToolkit's CascadingDropDown control to populate three levels of categories. In the hybrid system described above, the CascadingDropDown control is throwing Method Error 404. I would appreciate if some body can guide on how to resolve this issue. The sample of code snap shot is mentioned below. ********************************************************************* Aspx file. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ <asp:DropDownList ID="ddlMajorLevelCategory" runat="server" Width="250px" ToolTip="Select Major Level Category" TabIndex="1"                            SkinID="h6BlueArial"> </asp:DropDownList>   <ajaxToolkit:CascadingDropDown ID="ccMajorCategory" runat="server" TargetControlID="ddlMajorLevelCategory" Category="M" PromptText=&qu

View Complete Post

More Related Resource Links

ajaxToolkit:CascadingDropDown and WCF and [Method 404 Error]



I am new to WCF issues and I'm trying to populate an <ajaxToolkit:CascadingDropDown> control  by using a wcf service . I have used 'Ajax-Enabled WCF' template ( VS 2008) for creating my service. there is no error in building time but when i open my dropdown there is only one item and that is  [Method 404 Error] .

I have searched for hours to find a solution but no  use. I will be thankful if anyone can help me out Crying




Creating assembly throwing an error as system.directoryservices assembly is not in the SQL Server

Hi, I am trying to create an assembly (DLL file that created by C# ) which uses System.DirectoryServices assembly. When I try with following script Create ASSEMBLY Addresstype From 'C:\ActiDirectoryFunctions\ActiveDirectoryFunctions.dll' I am getting following Error Assembly 'ActiveDirectoryFunctions' references assembly 'system.directoryservices, version=, culture=neutral, publickeytoken=b03f5f7f11d50a3a.', which is not present in the current database. SQL Server attempted to locate and automatically load the referenced assembly from the same location where referring assembly came from, but that operation has failed (reason: 2(The system cannot find the file specified.)). Please load the referenced assembly into the current database and retry your request. From above error message, I learnt that System.DirectoryServices assembly is not in the SQL Server. I am using SQL SERVER 2005 SP2 and .Net Framework 3 is there in the machine How to manually add this assembly into this SQL Server Machine? Please let me know if you know Thank you, Raj Dreaming a world without any war in anywhere

EXPERT: Method error 500 in dropdown (solution is NOT adding System.Web.Script.Services.ScriptServic


Please only answer if you have read the full question!!

Ok...this thing is driving me crazy!!!!

I keep getting a method error 500 in my dropdown box.

All the posts on the web come with the same solution, but it doesnt work for me!
The code seems SO simple and consists of so few lines....but it just doesnt work!



<asp:DropDownList ID="ddlCountries" runat="server">

<cc1:cascadingdropdown ID="cddCountries" runat="server" Category="Country" Enabled="True" LoadingText="Loading...please wait." PromptText="Choose a country" ServiceMethod="GetCountries" ServicePath="geolocation.asmx"     TargetControlID="ddlCountries"></cc1:cascadingdropdown>

<%@ WebService Language="VB" CodeBehind="~/App_Code/geolocation.vb" %>

<System.Web.Script.Services.ScriptService()> _
<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
 Public Class geoloc

SPGridView Control: Paging Error - "Unable to cast object of type 'System.Int64' to type 'System.



I'm creating project in VS 2010 using VisualWebPart. I'm using SPGridView for my grid in the web part. To acheive this, I've done following:

I added following xml in my ascx control

<SharePoint:SPGridView runat="server" ID="grdView" AutoGenerateColumns="false" AllowPaging="true" PageSize="2&

Sys.Net.WebServiceFailedException: The server method '' failed with the following error:



Let's say we have 2 time consuming functions, aaa and aaa1 inside a aspx page.

        public static string aaa(int i)
            return i.ToString();

        public static string aaa1(int i)
            return i.ToString();



        <asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true">
        <span id="displayspan"></span>
        <br />
        <input type="button" value=

Jscript error: Object does not support property or method


 Hi, i have little knowledge on javascript but i need to use this code get from somewhere for a jquery to work.

I face this "Jscript runtime error: Object does not support property or method" whenever im trying to run this page.

In my experience, im get this error msg 9 out of 10 times i use javascript in my system.

Im using Microsoft Visual web developer 2008, i wonder if this is related to my problem, i not sure there is anything i need to add as reference or update anything.

But anyway, in short, i just couldn't use javascript code when using this development tool because of this sort of error.

Anyway, it happen that last time i tried use the same type of jquery code in another project and it seems to work well without an error.

But now when im try to use it again in this recent project i created, it come out with this error and i have no idea how to solve it even look through google and this forum.

It doesn't really seems like its the code problem itself although im not sure, because any javascript code just couldn't work.

So below is my code that i need to use.

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" ></script>
<script type="text/javascript" src=&quo

Custom Control Design-Time SiteMap Provider Error


Greetings - I was referred here by MSDN forums hope this is the right place -  

I have a custom control (:WebControl) that renders web.sitemap in a specific way. While it runs error free and produces the expected result, at Design-Time it complains

Error Creating Control - MyControl  The provider 'AspNetXmlSiteMapProvider' specified for the defaultProvider does not exist in the providers collection.

I have discovered that the error is cause by this line of code:

string div = string.Format("<div class='{0}' id='{1}'>{2}</div>", this.CssClass, this.ID.ToString(), EnumerateNodesRecursive(SiteMap.RootNode, level));

or more specifically, by the reference to SiteMap.RootNode - I am not clear what is missing thoough because I have configured the SiteMapProvider in web.config as this:

        <add name="AspNetXmlSiteMapProvider" 
             type="System.Web.XmlSiteMapProvider, System.Web, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" 

"Type ASP.x is not defined" error for dynamic user control when publishing updateable


I have a user control (ContainerCtrl) which programmatically instantiates another user control (SimpleCtrl) in OnLoad. It builds and runs fine, but when I publish it I get the error "error BC30002: Type 'ASP.SimpleCtrl' is not defined." (If I publish without the "updateable" option there's no error, but I need the site to be updateable.)

I assume this has to do with the particulars of how the assembly(ies) are built for the different compiler options. My question is, how can I get it to work properly for "updateable" publishing?

VS 2008 / .NET 3.5 sp1

The code follows (web.config is the default from Visual Studio).

Many thanks, Dave


<%@ Control Language="VB" ClassName="SimpleCtrl" CodeFile="SimpleCtrl.ascx.vb" Inherits="_SimpleCtrl" %>

    Simple control


Partial Class _SimpleCtrl
    Inherits UserControl

    'Nothing to see here.

End Class


<%@ Control Language="VB" CodeFile="ContainerCtrl.ascx.vb" Inherits="_ContainerCtrl"

Custom Control Design view error



I have created a custom control from scratch and it works fine as in you can build the project that uses it and it works fine at runtime. Problem is when you go to design view the control shows an error in the place of where the control should be rendered.

Error: '<SomeValue>' Could not be set to '<SomeProperty>'

This shows up on all my custom set properties. These properties are created as basic as possible. I can give the properties values in Source view and run the app just fine. I can even add a Onclick event. If I don't set any custom properties the control will render fine in Design view. It's only when I set a value to a custom property.

Property Code Example:

public string Text
                string ret = "";
                object obj = ViewState["Text"];
                if (obj != null)
                    ret = obj.ToString();
                return ret;
                ViewState["Text"] = value;

I've even removed the Category and Description tags with no difference.

I don't know if what I said makes sens, but I hope it

Compiler Error Message : CS0006: Metadata file 'System.EnterpriseServices.dll' could not be found


I get this error when i Debug my web application....


I followed these steps.,

  • Ended the aspnet_wp.exe process in the Windows Task Manager
  • Then deleted the application`s folder in C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\
  • Then started Visual Studio 2008 again

I also rebooted my system but no use....

Plz help !

Team System: Team Foundation Server Version Control


In this new column, Brian Randell begins his long look at how to extend and enhance Visual Studio Team System.

Brian A. Randell

MSDN Magazine January 2007

Error Handling: Throwing Custom Exception Types from a Managed COM+ Server Application


Exception handling semantics in .NET are based on type, so you can create custom exceptions that have their own properties and methods. In .NET, exceptions are first-class citizens, and since they're the built-in error handling mechanism, all .NET-compliant languages must support exceptions. In addition, COM+ services are available to .NET code as Enterprise Services, so you can leverage exceptions in your Enterprise Services design.In this article the author describes custom exceptions, throwing exceptions across COM interop boundaries, and working with Enterprise Services.

Bob DeRemer

MSDN Magazine March 2004

.NET Delegates: Making Asynchronous Method Calls in the .NET Environment


One of the many great features of the .NET Framework is that it has asynchronous infrastructure built in. In .NET you can call any method asynchronously by defining a delegate for the method and calling the delegate's asynchronous methods. This is beneficial to your application because when a synchronous call is made, the calling thread is blocked until the method completes whereas an asynchronous call is made on a different thread, and this allows the original thread to continue its work while the asynchronous call is in progress.This article explains delegates in .NET and how to use them to perform asynchronous calls, eliminating age-old threading problems.

Richard Grimes

MSDN Magazine August 2001

Problems moving an InfoPath form from a DEV system to QA environment


We developed an InfoPath form using a local DEV environment.  The site collection under which the form was developed was http://server1/.

We are now attempting to deploy this form to a TEST environment that uses a slightly different structure for the collection, namely http://server2/sites/sitecol1.

In both cases the site that contains the form is /fin (so we were using http://server1/fin in DEV and want to use http://server2/sites/sitecol1/fin in TEST). 

The form contains VBA code and so requires admin-based deployment via Central Administration, so to deploy to TEST we:

1. Publish the form against the TEST server using InfoPath Designer

2. Upload the form using Central Administration > Application Managment > Manage Form Templates

3. After upload, we activate the form for the site collection http://server2/sites/sitecol1/

4. The form is then associated with a Form Library

When we try to create an instance of the form within this library we get the following error when we click on New to create the form instance:

The following location is not accessible, because it is in a differ

Business Data Error: System.OverFlowException


I have a Business Data Catalog file I've uploaded to connect to our back end Firebird DBMS through ODBC.

The SharePoint server is MOSS 2007 x64. The web front end server(s) all have an x64 Firebird Engine and ODBC driver with verified connectivity to Firebird.

When I use one of the methods, I can see connections being made to our Firebird server and the query being passed. I know the query returns results (it's a stored procedure with no parameters), but I get the following error "An error occurred while retrieving data from MROTest1. Administrators, see the server log for more information" in IE. If I look in the server logs, I see (12\Hive\Logs)

Exception handed to HandleRuntimeException.HandleException System.OverflowException: Arithmetic operation resulted in an overflow.     at System.Data.Odbc.OdbcDataReader.GetData(Int32 i, SQL_C sqlctype, Int32 cb, Int32& cbActualOut)

Using tabs from the AjaxControlToolkit causes error: ...control contains code blocks (i.e. <% ... %>


I'm getting the error:

The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

When attempting to add the tabs from the AjaxControlToolkit.  A little background..Theres an existing aspx page in a microsite which used the accordion control and the tabbed control ...I need to modify this page to use a different masterpage. 

The original site was .Net Framework 2.0 and the page in question used AjaxControlToolkit 1.0. which I manually installed originally.  Some of the site has been further developed using the .Net Framework 3.5.  (Come with AjaxControlToolkit) Now I have come to update this aspx page and I get the error above.

I have narrowed the down to the TabContainer (I think)  Does anyone have any experience with this sort of problem?  Also what version of the AjaxControlToolkit should be with the .Net Framework 3.5? I have 1.0.20229.20821. 

I also tried to browse to the AjaxControlToolkit.dll to add the tools to the tool box as they're missing... thinking this may be an indicator as to why it wasn't working. I get the error: 'There was an error loading types from assembly C:\inetpub\wwwroot\project\Bin\AjaxControlToolkit.dll Could not load file or assembly 'System.Web.Extensions. Version=

The remote server returned an error: (405) Method Not Allowed.



{System.Net.WebException: The remote server returned an error: (405) Method Not Allowed.
   at System.Net.WebClient.UploadFile(Uri address, String method, String fileName)
   at System.Net.WebClient.UploadFile(Uri address, String fileName)
   at System.Net.WebClient.UploadFile(String address, String fileName)
   at Test.Page_Load(Object sender, EventArgs e) in c:\Inetpub\wwwroot\WebSite1\Test.aspx.cs:line 35}

Windows application, automated process will run on local user system...
trying to upload a file to website folder. website address:

System.Net.WebClient wc = new WebClient();
wc.UploadFile(website address, "c:/1.pdf");

Getting error from above line.. Am doing something wrong??
I dont want to use ftp or share folder logic..
is there any other way to upload the files to server??

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend