Type Or Namespace Name 'Messaging' Does Not Exist In Namespace 'System

Apr 10, 2010

The type or namespace name 'Messaging' does not exist in the namespace 'System' (are you missing an assembly reference?)

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Namespace Of "system.runtime.caching" Does Not Exist But In Object Explorer And Microsof Exist?

Nov 25, 2010

namespace of "system.runtime.caching" does not exist but in object explorer and microsof exist.i use microsoft visual studio 2010 and .net framework 4.0.i also cant use this name space(System.IO.MemoryMappedFiles & System.Runtime.Caching.MemoryCache)

any body know what is the problem. i want my program after doing something (opening a file or any thing that can do something my program use more memory.)use memory like startup run.

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System Namespace Conflict With Sibling Namespace

Nov 16, 2011

This class is located in the namespace Acme.Infrastructure.Interface.A class with the same name EventArgs exists in the System namespace.In another project in my solution I have a class Acme.BusinessModules.MyModule.MyClass.When attempting to use the EventArgs class I have to fully qualify the class name or the compiler thinks I am using the System.EventArgs class.My understanding of namespace resolution was that the compiler would first look for the class in the current namespace, and then its parents. It seems that the compiler checks in System before it checks in sibling namespaces. Is it correct that System is checked before the sibling? Or is this behaviour caused by other issues (Imports order?)?

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'Statement Is Not Valid In A Namespace' Error Messaging

Jun 2, 2011

I Have a bit of a problem..For some reason visual studio says there's an error--it reads:Statement is not valid in a namespace..I can't figure out how to fix it. This is what my coded looks like and there's a blue squiggly line on the first two lines that start with Private Sub:Private Sub btnPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlay.Click.[code]

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Imports System.Xml - Error Namespace Or Type Doesn't Contain Any Public Members Or Cannot Be Found?

May 2, 2010

I'm setting up a simple XML read-write demo (VB Winforms) in Visual Studio 2010 Premium (tried in both the RC and RTM) and added:

Imports System.Xml

Result: Error Namespace or type doesn't contain any public members or cannot be found...

VS 2008 equivalent example recognizes the Imports statement fine.I know this has to be me, but I'm stumped.

Note: I tried this with the app targeting both .Net 3.5 and 4.0. Same result.

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Warning 1 Namespace Or Type Specified In The Imports 'System.Windows.Forms' Doesn't Contain Any Public Member Or Cannot Be Found

Mar 14, 2010

When trying to compile my newly created ClassLibrary class 'Validator' that validates entries made into TextBoxs or MaskedTextBoxs, I get the following error:

Warning 1 Namespace or type specified in the Imports 'System.Windows.Forms' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases. C:Users erryDocumentsVisual Studio 2008ProjectsMillerClassLibMillerClassLibValidator.vb 1 9 MillerClassLib.

Following is the first part of code in the class:

Imports

System.Windows.Forms
Public
Class Validator

[code]....

What can I do to resolve this problem? The classes in this class library will be used to validate forms data input in a number of varied projects.

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Adding Namespace Attribute To XElement - Prevent Blank/empty Namespace On Child Elements?

Mar 17, 2011

I need to read an xml document from a database record into an XDocument object in order for it to be deserialized. So that the deserialization will work, I need to apply a specific namespace to each of the level 1 elements. So XML looks a bit like this:

[Code]...

How do I prevent the blank/empty namespace being added to each child element of the element to which the required namespace has been applied?

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ERROR : 'Namespace' Can Occur Only At File Or Namespace Level

Jan 29, 2012

Imports System.Windows.Forms

ERROR : 'Namespace' can occur only at file or namespace level

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'Namespace' Statement Must End With A Matching 'End Namespace'?

Dec 8, 2011

I am getting this error,here is my code.

Public Class Sample2
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)Handles Button1.Click

[Code]....

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.net - The System.Linq.Dynamic Namespace - Visual Studio Does Not Recognize In The Project Files The System.XXX References

Aug 11, 2011

I would use the System.Linq.Dynamic. I added the specified Dynamic.vb file, that starts like this:

[Code]...

to my (VB.NET)solution. Now Visual Studio does not recognize anymore in the project files the System.XXX references, proposing me to change them to Global.System.XXX

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System.Web.UI Namespace?

Apr 5, 2010

I want to define WebControls from VB code. I add a reference to System.Web.dll and I use VS2005. My code below gives me the errors:ype 'RadioButtonList' is not defined.Type 'UpdatePanel' is not defined.

Imports System.Web
Dim radiobtnlist As RadioButtonList

[code].....

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System.Xml.Linq Namespace?

Jan 13, 2011

I have been given the task of calling a web service which returns an xml data feed which I am doing like so;

For Each r As DataRow in SomeDataTable
Dim msFeed As String = string.format("http://some-feed.com?param={0}", r!SOME_VAL)
Dim x

[code].....

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Using System.IO Namespace For FTP Operations?

Aug 19, 2010

I have a few syncing routines that I'd like to use for FTP uploads. However they all use the functions in the IO namespace, and I was wondering whether I could use it to access distant files stored on an FTP server.

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EventArgs Is Ambiguous In Namespace System

May 10, 2011

While I am trying to load my project, I've got some errors like the following[code]...

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Getting The Namespace System.xml.linq To Be Recognized?

Oct 26, 2008

I am using VS 2008 but am having problems getting the namespace system.xml.linq to be recognized. I am attempting to add the reference but I don't seem to be be allow to select it.System.XML.Linq is grayed out in the AddReference menu. What must I do to add this reference to my project?

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Install System.threading Namespace?

Mar 26, 2009

I would like to discover the system.threading namespace. I look in the References -> Add -> .Net(tab) to add a reference to my project, but it is not listed in the .net references. I work with framework 3.5 service pack 1. How can I install this namespace?

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Build Error (The Type Or Namespace Name Could Not Be Found?

Jul 13, 2006

I am using VS.Net 2003. I have a solution that contains 4 projects. The first project contains the definitions of interfaces. The third project is using the interfaces defined in the first project. For the third project, I added a reference to the first project. But I'm still getting a build error

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Search Namespace For Generic Type (Reflection)

Sep 27, 2010

I'm attempting to dynamically register entities and configurations with a context (ef4 code-only). I would normally do:

Private Shared Sub ConfigureDatabase(ByRef Builder As ContextBuilder(Of ContextExtension))
'Load configurations for each of the tables (Entity sets) in our database...
ConfigureEntity(Builder, New ContactConfig)
End Sub
Private Shared Sub ConfigureEntity(Of T)(ByRef Builder As ContextBuilder(Of ContextExtension), ByVal config As EntityConfiguration(Of T), ByVal setName As String)
'Register the entity configuration with the builder
Builder.Configurations.Add(config)
'Register the entity set name with the builder
Builder.RegisterSet(Of T)(setName)
End Sub

Where ContactConfig is a class which inherits EntityConfiguration(Of Contact) and Contact is a class which implements an interface IEntity (IEntity is common to all entities). So... I need to search a namespace (say Project.DB.Client) for all signatures that match:
EntityConfiguration(Of <Class which implements IEntity>)
How can I achieve this?

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.net - 'TcpListener' Is Ambiguous In The Namespace 'System.Net.Sockets'?

Feb 21, 2012

I got 11 errors in my VB program. All the errors look similar: X is ambiguous in the namespace Y

Error line: Imports System.Net.Sockets
Imports System.Text
Module Module1
Sub Main()

Dim serverSocket As New TcpListener(System.Net.IPAddress.Parse("192.168.1.100"), 8888)

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System.Configuration Namespace's Specific Classes

Jul 31, 2009

I am fresher in vb.net but I want to develop a project in this case I want to use the system.Configuration namespace's specific calsses. But I am not clear which class i use and why it's function and it's use.

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System.Net.Sockets Namespace - Use For A Chat Client?

May 31, 2009

How would I use this for a chat client? I'm not sure where to even start and the internet is helping me find much about it.

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Unable To Get Namespace System.Deployment.Application

Aug 19, 2010

I am trying to get this: System.Deployment.Application.ApplicationDeployment.CurrentDeployment.IsFirstRun.But the application namespace is not there. I just see System.Deployment.Internal. The object browser, however, shows me all the properties and methods of that namespace, but my app can't see it.?

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Use MultiLineStringEditor Class From System.Design Namespace?

Feb 20, 2010

Me need use MultiLineStringEditor Class from System.Design namespace.I add reference as file (as in the .NET tab, it no) from

c:Program FilesReference AssembliesMicrosoftFramework.NETFrameworkv4.0System.Design.dll

and Visual Studio show in References

System.Design.dll
.NET
0.0.0.0
False

<The system cannot find the reference specified>

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VS 2008 : Can't Import The System.DirectoryServices Namespace

Dec 17, 2009

I can't import the System.DirectoryServices namespace. It doesn't pop up if that little box thing.Why?

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Yahoo Login Via System.Net.Sockets Namespace?

Nov 3, 2008

The problem is yahoo changed there login URL Structure. I have placed a peice of the code below.

Dim LoginPacket As String
LoginPacket = "GET http://login.yahoo.com/config?&login=" & txtLEmail.Text & "&passwd=" & strPass.Trim & " HTTP/1.0" & vbCrLf
LoginPacket = LoginPacket & "Accept: */*" & vbCrLf

[code]....

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Namespace Or Type 'Data' For The Imports 'Microsoft.ApplicationBlocks?

Sep 28, 2009

Error msg - Namespace or type 'Data' for the Imports 'Microsoft.ApplicationBlocks.Data' can't be found. How do I fix this error. I tried adding a reference but it is not listed in the references.

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'SqlConnection' Is Ambiguous In The Namespace 'System.Data.SqlClient'?

Mar 10, 2009

I have imports namespace System.Data.SqlClient.I just create object of SqlConnection,But error is there-
'SqlConnection' is ambiguous in the namespace 'System.Data.SqlClient'.

[Code]...

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Asp.net - Fix Func Is Ambiguous In The Namespace 'system' Compiler Error

Dec 8, 2011

I have a method that looks like this :

Function ExecuteAndLogError(Of TResult)(ByVal code As Func(Of TResult), _ByVal sql As String, _Optional ByVal parameters As SqlParameterCollection = Nothing) As TResult End Function

I am getting this compiler error : 'Func' is ambiguous in the namespace 'System'.

[Code]...

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ASP.NET 3.5 WebSite Stopped Importing System Namespace By Default

Apr 13, 2010

I have a VB Web Site project that has recently (and mysteriously) stopped importing the "System" namespace by default.

I'm having to either place an Imports System line at the top of each code behind, or preface everything with System, which is fairly annoying, not to mention redundant. I can't for the life of me figure out how to get the System namespace back to being imported by default.

I've already checked to see that WINDOWSMicrosoft.NETFrameworkv2.0.50727CONFIGweb.config contains the <add namespace="System"/> line--it does. That was my best lead.

I have references to several namespaces within the System namespace in the <assemblies> node (e.g. System.Design, System.Web.Extensions of my website's web.config. There is no <namespaces> node. This has not been changed recently.

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Importing System.DirectoryServices Only Reveals The AccountManagment Namespace?

Mar 3, 2011

Where is directoryentry, directorysearcher, searchscope, etc.?

.NET 4.0, VS2010 Professional

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