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[MissingWebPart] WebPart class [baf5274e-a800-8dc3-96d0-0003d9405663] is referenced [23] times in th

Posted By:      Posted Date: September 01, 2010    Points: 0   Category :SharePoint
Hi, I got this error message from CA monitoring  

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Referenced WebService, class constructor with parameters

Hi, I have WebService which is referenced in C# ClassLibrary project. In WebService project I have a class named User, which has two constructors - one without parameters and one whith parameters. When I try to create instance of User class from WS in ClassLibrary, I can use only constructor with parameters. My question is, how can I use in constructor with parameters like User u = new User("some@email.com", ...);. Any idea? Thansk

test-spcontentdatabase reports missingWebPart, but the page with the webpart has been deleted


I'm testing a MOSS2007 --> SP2010 migration - took a backup of a site collection db, attached it to the new SQL server and ran test-spcontentdatabase against it.  it reported several custom webparts as not being installed on the new farm.  I deleted the pages containing those webparts from the production MOSS sites, and then deleted those pages from the recycle bin - but test-spcontentdatabase still reports those webparts as being referenced.  Searching the database directly does find references on the pages I deleted in the WebParts table.  When I join the WebParts table with the AllDocs table I see the deleted pages referenced - but they don't exist (that I can tell) either on the site or in the recycle bin.

How can I get these items out of the report? 



Using a class multiple times on one page


I have a class in my App_Code folder called Order. On one of my pages I am trying to create two different orders using this class.

Private Order1 As Order
Private Order2 As Order

Sub Page_Load(ByVal Sender As Object, ByVal E As EventArgs) Handles Me.Load
        Dim CartID As String = "4525543"
        Order1 = GetOrderFromDatabase(CartID)
        Order2 = Order1

        Order2.Shipping = 3
        Order1.Shipping = 2


  End Sub

When I run the page each of the Response.Write statements ouputs a 2. But this is not correct. One should be 3 and the other should be 2. Does anyone know why this is not working?

Normal 0 MicrosoftInternetExplorer4

I have a class in my App_Code folder called Order. On one of my pages I am trying to create two different orders using this class.

Private Order1 As Order

Private Order2 As Order

Sub Page_Load(ByVal Sender As Object, ByVal E As EventArgs) Handles Me.Load

Class Diagrams

Class diagrams show the static structure of the systems. Classes define the properties of the objects which belong to them. These include:

Attributes - (second container) the data properties of the classes including type, default value and constraints.

Creating a Simple Class in C#

The second article in the C# Object-Oriented Programming tutorial describes how classes are created in C# and how behaviour, in the form of publicly visible and private, hidden methods can be added. This demonstrates some of the uses of encapsulation

Static Class for Beginners

In general, the members of a class can be accessed by instance of that class when they are in public, but there comes a situation to access or call members of a class without an instance and this can be achieved by declaring them as static

abstract away the source of the connection string using a class with a static property.

ASP.NET provides a configuration system we can use to keep our applications flexible at runtime. In this article we will examine some tips and best practices for using the configuration system for the best results.

The element of a web.config file is a place to store connection strings, server names, file paths, and other miscellaneous settings needed by an application to perform work. The items inside appSettings are items that need to be configurable depending upon the environment, for instance, any database connection strings will change as you move your application from a testing and staging server into production.

Let's abstract away the source of the connection string using a class with a static property.

MessageQueue Class

This sample demonstrates two way communications using message queuing between a device application and a desktop application. One application sends book order messages to a message queue and another application receives these book orders from the message queue and responds to the device queue that the orders have been processed.

How to change the default page base class?


I've tried setting the <pages pageBaseType="DynamicWebPage" /> value in web.config, but when I response.write out the page type, I'm still getting Microsoft.WebPages.WebPage.

I'm simply trying to sub-class WebPage and add some additional functionality such as a dynamic PageData dictionary similar to Phil Haack's dynamic ViewData dictionary.



Can I replace the EntityObject as base-class in Entity Designer 3.5 sp1?


I'm using EF3.5sp1 for a project, and I've been working around many of its problems... as such, my entity partial classes have a lot of logic in them for change-tracking and whatnot.  Obviously, I'd like to factor this logic out into a common base class, but of course all my objects must derive from EntityObject.  Is it possible to tell them to derive from some class of my own invention (which would actually likely derive from EntityObject themselves)?

I'd rather avoid editing the EDMX file unless the changes will be safe on entity-model-update, since I'm still making changes to the database schema in this early state of my project.


Also, is there any good workaround for the fact that the change isn't tracked when you change EntityReference.EntityKey?

The type 'System.Data.Linq.DataContext' is defined in an assembly that is not referenced. You must



This is frustrating, and I don't know how to solve it.

I have a strange problem. I am adding a LinqDatasource object, and set the context:

        protected void LinqDataSource_ContextCreating(object sender, LinqDataSourceContextEventArgs e)
            e.ObjectInstance = new KaruselaDataContext(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

Then I get this error:
The type 'System.Data.Linq.DataContext' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Data.Linq, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089'.


On web.config I already have this:
<add assembly="System.Data.Linq, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>

NOTE: The datacontext is in a different project (DLL proect) where I added a refernce to System.Data.Linq.

is there another way adding a refernce to a web project? or only though teh web.config?


Singleton Pattern and Abstract Class


I know what Singleton Pattern means and Abstract class means.

What I wanted to know was how would this apply to real world.

Could anyone give me any good example or simple explanation.

Say I have a simple website, why would I use any of the above if any.

Why would it simplify my architechture.

Thanks in advace. 

How to implement custom HttpContext for each request under class that implements IHTTPHandler


Hello All,

I created an application and implemented IHTTPHandler for all incoming request ending with ".aspx" extension.

Under "ProcessRequest" module, I am creating an instance of HttpContext (with URL attributes different from my application's URL i.e. if I am working on localhost then speciying Yahoo.com as its URL) and assigning it to "context" which comes as method argument.

After redirection, an error is generated. Also, the custom HTTPContext is not passed to the requested page (default.aspx, in my case.)

Code is as follows.

    Public Sub ProcessRequest(ByVal context As System.Web.HttpContext) Implements System.Web.IHttpHandler.ProcessRequest
            Dim requestedUrl As String
            Dim targetUrl As String
            Dim urlLength As Integer
            'Save settings which will be used while redirecting to appropriate page
            requestedUrl = context.Request.RawUrl
            If requestedUrl.IndexOf("?") >= 0 Then
                targetUrl = requestedUrl.Substring(0, requestedUrl.IndexOf("?"))
                targetUrl = requestedUrl
            End If
            If targetUrl = Nothing Or targetUrl.Length = 0 Then
                targetUrl = requestedUrl
            End If

Using a GenericHandler as a WebResource inside a Class Library



I hope this is the right place to ask this question.

I'm trying to make a control class library. I want to have a GenericHandler as a WebResource so I could call it from the web project that will use that control.

I need this handler will get parameters from the query string and return JSON data acourding to what it get in the QS.

I know how to create JS and images WebResources, so I tried the same on a generic handler I added to the class library project but all it does is return the source of the handler file and not the result.


Is what I'm trying to do possible? If so, what should I do?


Thank :-)

Using loginName to find ADInfo from an outside class



I wrote a class to pull adinfo and for the life of me I can't seem to figure

out why it says "Invalid Login Name" no matter what I type in. If I leave

it blank it seems to work properly but it doesn't seem to be actually searching

the AD. I'll drop the whole class here, it's being initiated by a button click

on an outside form.


Thanks in Advance for any help Offered,



Imports System.DirectoryServices
Imports Microsoft.VisualBasic
Imports System.String
Imports System.Collections
Imports System.Security.Principal
Imports System.Security.Permissions

Namespace LoginButton
    Public Class LoginButton

        'Class Variables
        Dim UserID As String = Nothing
        Dim DomainDN As String = ConfigurationManager.AppSettings("myConnectionString")
        Dim ADEntry As DirectoryEntry = New DirectoryEntry(DomainDN)
        Dim objSearch As New System.DirectoryServices.DirectorySearcher(ADEntry)
        Dim oResults As DirectoryServices.SearchResultCollection
        Dim oResult As DirectoryServices.SearchResult
        Dim RetArray As New Hashtable
        Dim page As Page = DirectCast(HttpContext.Current.Handler, Page)
        Dim TextLogin = DirectCast(page.FindControl("

Localization not working in class library (composite control)



I have a class library called WEM.portal which used Resource files to localise text in my composite controls.

I store my resource files (eg MyResourceFile1.resx) in App_GlobalResources folder and then refer to them using

MyLabel1.text = My.Resources.MyResourceFile1.MyResourceKey1

This is all working ok until I create seperate files for each language such as MyResourceFile1.FR-fr.resx.

I have implemented this throughout my other web applications but the Class Library doesnt seem to want to work the same way

When I load the page it correctly showes the resourced keys which I have done through the web application BUT the resource keys in the composite controls does not seem to pick up the culture code.

Am I missing something stupid. Ive tried

  • changing the Build Action on the resource file to Content and Custom tool to GlobalResourceProxyGenerator
  • Creating a resourceManager but to no avail


Make sure that the class defined in this code file matches the 'inherits' attribute, and that it e


Here is the page directive for the page that throws the error:

@ Page language="c#" Inherits="University.AspNet.Index" CodeFile="Index.aspx.cs" %>

The code behind file Index.aspx.cs starts like this:

using University.Framework.UI;

namespace University.AspNet

public partial class Index : University.Framework.UI.HomePage

The code behind is extending this HomePage class, which is in turn an extenstion of another class University.Framework.UI.Page, which extends the System.Web.UI.Page class.

Am I misusing the I

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