Use System.Net.NetworkInformation.GatewayIPAddressInformation Class?

Oct 1, 2010

I tried every trick in the book, creating a new object, instantiating it (even tho it says i can't) and just trying to create a reference to use it, and then also trying to call the .Address value inside it while using it like i would use a shared member (without instantiation) and nothing is working, msdn sample/help is useless... i even tried inheriting it and useing it like that, none of them worked, i am sure i am missing something, can anyone give me some code samples? here is the msdn docs on it to to give you an overview.url...although i like vb.net more i can read and coded in both c# and vb.net so either will be fine.url...

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System.Net.NetworkInformation.IPv4InterfaceStatistics?

Jan 6, 2012

Is there any way I can do this

Dim ipv4Stats As System.Net.NetworkInformation.IPv4InterfaceStatistics
ipv4Stats = System.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces(0).GetIPv4Statistics
TextBox1.Text = ipv4Stats.BytesReceived.ToString / 1048576
TextBox1.Text = FormatNumber(TextBox1.Text, -1)

But for a specific program that is running? Like Iexporer, or Explorer, or whatever, is it posible to monitor the packages being recieved by only one program?

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Communications :: Missing Reference To System.Net.NetworkInformation?

Jun 29, 2010

I must be missing something very obvious...Using Visual Studio 2005 to write a vb app for Windows CE. I'm trying to use the NetworkInformation namespace of System. I can see it in my object browser, but when I try to use it in my form, it doesn't come up in the autocomplete and the compiler complains that "NetworkInformation is not a member of Net".

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NetworkInformation.Ping(), Result Cancelled In .NET 4.0, (but Not In 3.5)?

Dec 4, 2011

I changed target framework from 3.5 to 4.0, no other changes. A simple ping which worked with 3.5, now with 4.0 the result gives Canceled=True. what may cause this?

Public Sub StartInternetConnectionCheckEvery(ByVal seconds As Integer)
Dim timer As New Timer()
timer.Interval = seconds * 1000

[code].....

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Error - Base Class 'System.Windows.Forms.Panel' Specified For Class 'MenuButton' Cannot Be Different From The Base Class 'System.Windows.Forms.UserControl'

Mar 12, 2010

When I do this

Public Class cInherits : Inherits Panel

I get this: Base class 'System.Windows.Forms.Panel' specified for class 'MenuButton' cannot be different from the base class 'System.Windows.Forms.UserControl' of one of its other partial types.

How do I inherit?

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Interface And Graphics :: Making A Custom Class That Mocks The System.Drawing.Rectangle Class?

Jul 6, 2010

I'm making a custom class that mocks the System.Drawing.Rectangle class because the Rectangle class doesn't have a name property. I need a name property because I am adding all of my rectangles to a collection and I need a little more info stored than just their locale and size. So I changed the _onPaint event but nothing is working out when I run the program?

Public Class Rectanglar : Inherits UserControl
Public BackgroundColor As Color = Color.Blue
Public Sub New(ByVal name As String, ByVal XY As Point, ByVal Widthy As Integer, ByVal Heighty As Integer)

[code].....

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Asp.net - .Net Iniatialising A Class Using System.Reflection And System.Type To Create A Session Based Singlton Extension Method

Jun 11, 2009

I have had several occasions recently to access a specific class several times over a relatively small time frame.So I've been storing the value of the class in Session and trying to access it on page load, if it's not available creating a new instance and storing that in session.

So instead of constantly replicating the same code for different classes on different pages I'm trying to create an extension method to do this for me.

[Code]...

I'm stuck on what to do when I make my new instance of my class (it would have to have a New() sub)

I'm not sure where to go from here... or even if this is the best way to do it.

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Unable To Cast COM Object Of Type 'System.__ComObject' To Class Type 'System.Xml.XmlNode'

Jul 30, 2009

Code: Dim dom As New DOMDocument30 dom.async = False
dom.Load(serverAddress & "/App/filelist.jsp?type=content")
For i = 0 To dom.childNodes.item(1).childNodes.length - 1 downloadfile(dom.childNodes.item(i), mcount, currentpath) Next

The above code is activated upon clicking of a button. i have the server address declared. and using the domdoc to load the jsp file to generate the xml data. and using for loop, i call the download file function which accepts the following parameters

Code:Public Sub downloadfile(ByVal domdoc As Xml.XmlNode, ByVal totalcount As Integer, ByVal currentpath As String)

The totalcount and currentpath work fine, but when i pass in the dom.childNodes.item(i) , error pops up.

--------------------error message------------------------------------------Unable to cast COM object of type 'System.__ComObject' to class type 'System.Xml.XmlNode'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface.-------------------------------------------------------------------------------

[code]....

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Catch' Cannot Catch Type 'Object' Because It Is Not 'System.Exception' Or A Class That Inherits From 'System.Exception'

Aug 10, 2010

I'm getting 'Catch' cannot catch type 'Object' because it is not 'System.Exception' or a class that inherits from 'System.Exception'. and 'Expression detected' Code underlined in blue: Catch obj1 As Object When (?)

Private Sub OpenJAMem()
Dim num3 As Integer
Try

[code]....

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Expanding A System Class A Sequel?

Jun 6, 2011

Is there a more elegant way to do this? : For Each ctrl As Control In Me.Controls

[Code]...

If I then write a .ioEnable for my btnBase and my pgfBase, I would not have to worry about this anymore.

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Ftp WebClient Class System.Net.WebException?

Jun 2, 2007

I'm writing an application in vb.net to download files from a remote server by ftp using WebClient Class

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Use System.io.packaging To Create Own Zip Class?

Apr 28, 2010

I'm trying to use system.io.packaging to create my own zip class. I've got it to work, but i'm not happy with the compression rate. In the code below I've set it to the maximum compression rate, yet winrar is able to create a zip (at maximum compression) that is 2/3 of the size when I make it. Am i doing something wrong?

[Code]...

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Create A Static Class Like System.Math

Mar 6, 2010

I have a module with generic constants, subs and functions.I would like to be able to use the module in multiple projects in one solution.I also want it to work like the class System.Math, where you do not need to declare and instance of the class before you can reference it.[code]I want to be able to call ClassLibrary1.MyGenerics.Half() just like I can call System.Math.Abs()

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File System Watcher Class Over Network

Jan 7, 2010

I am using standalone application vb.net(2.0) and using filesysystem watcher class to find any new xml coming into that specified directory then application take that file and continue the process but the direcotry have been located in network machine. Now my problem is, once the path is not available it mean the shared path server going to offline, then my application not intimate me.

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TCP / IP Chat Program - System Socket Class?

Jul 15, 2009

I wrote a server for a tcp/ip chat program using the system.net.sockets class. When I run the program and the client tries to connect to it, there's an error and it won't work. I am positive that the issue isn't with the client, as I have made a connection with the client before.

Imports System.Net
Imports System.Net.Sockets
Imports System.IO
Public Class Form1
Dim server As New TcpListener(IPAddress.Any, 60)
Dim client As New TcpClient
[Code] .....

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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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.net - System.String Is A Class Type But Why Can Use It Without Instantiate It With New Keyword?

Sep 3, 2011

System.String is a class type, but why we can use it without instantiate it with New keyword?

For example:

Dim CommandLineParameters As String = Microsoft.VisualBasic.Interaction.Command

No new keyword being used at all?

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C# - Parse Using Regex Class Of System.Text.RegularExpressions

Mar 4, 2011

I have a string which i need to parse using Regex class of System.Text.RegularExpressions. I need to find if the first 2 characters of the string are either "00" or "07" or "16" or "23".

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Imports System.Windows.Forms In ASP.NET Class File?

Dec 14, 2011

how can i import System.Windows.Forms in my asp.net class file?

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Passing A System.Collections.Generic.List To Another Class?

Jun 10, 2012

I am trying to pass a System.Collections.Generic.List to another class. The collection is created in class2 and then passed into class1

[code]...

However I get a 'Null Reference Exception error' when I run the program. It seems f_str in the line 'For Each s As String In f_str' is null.

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Reading The Message Of The Event Log Using System.Management Class?

Nov 2, 2011

I am able to query/read the "Application" event log using System.Management classes in VB.net 2005 (win xp)But I have problem reading the "Message" / "description" of my custom event log.I am getting a System.NullReferenceException{"Object reference not set to an instance of an object."} while reading the "Message" / "Description of the event log while it is reading the others properties.Also when I use System.Diagnostics.EventLog and read all the Events on by one I am able to read the message/description of my custom event log. Why is that the System.Management classes can't read the my custom event log messages while the System.Diagnostics.EventLog classes can read them.The reason I want to use System.Management classes is bcoz I can query my custom event log where as with System.Diagnostics.EventLog classes I have to read the whole event log.

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System.Runtime.InteropServices.COMException (0x80040154): Class Not

Mar 1, 2009

[Code]...

I have put the exe which is in bin folder to my client place. I have installed .net framework there. and some forms are working fine. But I 'm getting above error for some forms. it has specially status bar, flexgird. I have copied the AxInterop.MSFlexGridLib.dll and Interop.MSFlexGridLib.dll file in to the same place where the exe is.

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Asp.net - Class 'System.Web.UI.WebControls.TableRow' Cannot Be Indexed Because It Has No Default Property

Mar 11, 2011

What i am having trouble doing is set the current parameter to the current row at a specific column like e.row[column index]

For Each trow As TableRow In table.Rows
cmd1.CommandText = "dbo.directway"
cmd1.CommandType = CommandType.StoredProcedure
cmd1.Connection = conn

[code]....

Class 'System.Web.UI.WebControls.TableRow' cannot be indexed because it has no default property.

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Asp.net - Somthing._Default Is Not Allowed Here Because It Does Not Extend Class 'System.Web.UI.Page'

Jul 23, 2010

This has got to be one of the most frustrating issues with asp.net. I first got the error parser error cannot load default and as I have done before checked if the naming was correct in th bin folder and made the changes accordingly. Now I get the following error:

somethiing._DEfault is not allowed here because it does not extend class 'System.Web.UI.Page'

where something is the name of the project in the properties. I have the following code in Default:

Namespace FormDiscovery
Partial Class _Default
Inherits System.Web.UI.Page
Shared settings As New System.Configuration.AppSettingsReader

[Code].....

Now I have deleted the project and other in the solution and created a new one and still this error and if I take the 'something' name away I get the cannot load default error.

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Class 'System.Windows.Forms.Label' Cannot Be Indexed Because It Has No Defaul?

May 1, 2012

Class 'System.Windows.Forms.Label' cannot be indexed because it has no default property Really can't figure out why I'm getting this error... tried to google it but no success. Could anyone point out what I'm doing wrong? I'm sure it's something simple. The code in red is where the error occurs.

[Code]...

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NullReferenceException While Reading The Description Of The Event Log Using System.Management Class?

Jan 25, 2011

I am able to query/read the event log using VB.NET 2005 (Win XP). But still I have a problem reading the "Message" / "description" of the event log.I am getting a System.NullReferenceException while reading the "Message" / "Description" of the event log.Also when I use System.Diagnostics.EventLog and read all the Event on by one I am able to read the message/description of the event. This is the code:

Public Sub ReadEvent()
Dim iCount As Int16
Dim PastFourHours As Date = Date.Now.AddHours(-4)[code]......

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System.Data.Linq.Table(Of X) Cannot Hold Class That Implements X

Dec 15, 2010

I have an interface 'ICRUDable' and a class called ClientAddress which implements the ICRUDable interface.

My understanding of OOP would lead me to believe that if I declare a System.Data.Linq.Table(Of ICRUDable) then I should be able to put ClientAddress's in there.

The code I have tried includes;

Dim dc As New CRMDataContext
Dim items = dc.ClientAddresses
and

[Code]....

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System.Runtime.InteropServices.COMException (0x80040154): Class Not Registered?

Sep 1, 2006

I am a *** programmer and cannot make sense of the error message I'm getting. I wrote a program and it runs fine on my development machine and also on other machines with Visual Studio installed. However, when I run it on any other machines, I get the message below.All of my other programs that I write run fine on these other machines; so I know this problem must be due to some control that's unique to this new program. But I can't make much sense of the error report

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C# - What Happens If Call Start() Two Times On Class System.Windows.Forms.Timer

Dec 28, 2010

Imagine that I have a System.Windows.Forms.Timer with 1000 ms interval. If I call Timer.Start() method and after 500 ms I call again Timer.Start() what happens? The second Start call will reset the interval or not? Are there any side effects?

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Modify Class For Permissions Determination, Which Fails To Execute A System.web Statement

May 1, 2009

I have found the class code below which should be activated to show the result for the selected option

Dim pc as new CheckPerm
pc.Permission = "Modify"
if pc.CheckPerm("C:WIndowsSystem32") then

[Code].....

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