System.IAsyncResult Interface
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Represents the status of an asynchronous operation.

  • Namespace: System
  • First seen in: .NET v1.0.3705
  • Last seen in: .NET v1.1.4322
  • Last changed in: .NET v1.0.3705
  • Assembly: mscorlib.dll

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  • View this type on WinFX 247
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    dynamic URL Behavior Property problem
    microsoft.public.dotnet.framework.aspnet.webservices
    I have a c# Windows application that is a client to a WebService. This application is made up of 9 projects in one solution, three of which include the Web Reference. The main project, does not directly include the Web Reference. I have defined the URL Behavior as dynamic in the 3 projects that include the Web Reference. The name .exe.config file generated has only a single add key... for the star...
    Dynamically linking to WebServices
    microsoft.public.dotnet.framework.aspnet.webservices
    I will have several webservices that do the same thing (they return the Latitude & Longitude for a given list of addresses) and am attempting to write a central controlling app that will pick and choose among these services based on a configuration file I provide and pinging of the various sites to see if they're available at runtime. My problem is I don't want to have to set up web References to ...
    Encryption/Decryption of stream.
    microsoft.public.dotnet.languages.csharp
    Hi Im trying to make a Client/Server where im going to encrypt the stream but i cant get it to work. I can recieve and send as long as im not trying to send/recieve encrypted. but when i am i cant send, recieve or both. The Send/Recieve Code is the same on both Server and client. Send/Recieve Code: private Stream Net() { if(Encrypted) { CryptoStream SecStream new CryptoStream(NetStream,TDes.Create...
    End Invoke not called using asynchronous callback
    microsoft.public.dotnet.framework.remoting
    I have developed a server that services notification subscription and delivery through remoting using event and delegate. The client would provide the delegate that point to a function in the client to receive notification. This delegate will subscribe to an event in the server. Upon notification, the server will send the notification to all clients(subscribers). In normal case scenario i can see ...
    Error ASP.net quickstart form loacal host sample webrequest.create(URL)
    microsoft.public.dotnet.framework.sdk
    I am trying out the quickstart asp.net samples and I get an webexception error saying underlying connection is closed when using Webrequest.create(URL) example: Quickstart from loacalhost: section webservices created with ASP.net XML Web service Type marshalling the asmx samples like VB datatypes.asmx work fine but the but the VB datatypesclient.aspx gives following webexeception: Any Ideas how to...
    Error at System.Net.ConnectStream.EndReadWithoutValidation
    microsoft.public.dotnet.framework
    My problem is This only occurs intermittently, it appears it happens on larger files that I attempt to download using the WebRequest method. The exception is thrown at sr.ReadToEnd(); It makes no different using or not using a BufferedStream. My problem is similar to that at http://groups.google.com/groups?hl en&lr &ie UTF 8&oe UTF 8&threadm eU0GICzJCHA.2012%40tkmsftngp13&rnum 1&prev /groups%3Fhl%...
    Error at System.Net.ConnectStream.EndReadWithoutValidation
    microsoft.public.dotnet.languages.csharp
    My problem is This only occurs intermittently, it appears it happens on larger files that I attempt to download using the WebRequest method. The exception is thrown at sr.ReadToEnd(); It makes no different using or not using a BufferedStream. My problem is similar to that at http://groups.google.com/groups?hl en&lr &ie UTF 8&oe UTF 8&threadm eU0GICzJCHA.2012%40tkmsftngp13&rnum 1&prev /groups%3Fhl%...
    Error calling web service over https://
    microsoft.public.dotnet.framework.webservices
    Hoping someone can help me with the following: I have a web service running which I'm trying to access from other code on the local machine. It works fine over http, but when I try to access it over https, I get the following error: System.Net.WebException: The underlying connection was closed: Could not establish secure channel for SSL/TLS. System.IO.IOException: Unable to read data from the tran...
    error connection closed webservice aspx samples
    microsoft.public.dotnet.framework.aspnet.webservices
    I am trying out the quickstart asp.net samples and I get an webexception error underlying connection is closed example: section webservices created with ASP.net XML Web service Type marshalling the asmx samples like VB datatypes.asmx work fine but the but the VB datatypesclient.aspx gives following webexeception: Any Ideas how to solve this? Cybarber underlying connection closed can't make connett...
    Error localhost quickstart webrequest.create(url)?
    microsoft.public.dotnet.framework.webservices
    I am trying out the quickstart asp.net samples and I get an webexception error saying underlying connection is closed when using Webrequest.create(URL) example: Quickstart from loacalhost: section webservices created with ASP.net XML Web service Type marshalling the asmx samples like VB datatypes.asmx work fine but the but the VB datatypesclient.aspx gives following webexeception: Any Ideas how to...
    Error retrieving DataSet from XML Web Service.
    microsoft.public.dotnet.framework.compactframework
    Hello All, I've created an XML Web Service that opens a connection to a SQL Server, creates a SqlDataAdapter, a DataSet, and loads that DataSet with the results of a query. The DataSet is the returned object of the WebMethod. I have tested the WebMethod both by going to the Url and entering the parameters and Invoking it, and by creating a small Desktop App that Allows you to enter the Parameters ...
    Event handler doesn’t get called at client side
    microsoft.public.dotnet.framework.remoting
    I try an event sample from a book â œ.NET Remotingâ chapter 3. It looks everythingâ s OK at server side. But at client side, the event handler never gets called. I download the source code from www.microsoft.com/mspress/books/6172.asp, and (1) Add typeFilterLevel "Full" attribution in config files (1.0 1.1). (2) Copy client application into a folder where server application resides. When I run cha...
    Event problem
    microsoft.public.dotnet.general
    Hi, I use the following class in my current program: Public Class Test Public Event EventOne (ByVal obj as Object, ByVal message as String) [...] Public Sub ReceiveCallback(ByVal ar As IAsyncResult) 'This is acutally a handler for the async use of sockets [...] 'do usual stuff MsgBox("about to raise event") RaiseEvent EventOne(Me, message) 'message is a string, that consists of received data [...]...
    Event support and machine crashdown
    microsoft.public.dotnet.framework.remoting
    Maybe someone could halp me with my problem. I ve got server application working just like chat from MSDN example for remoting. Every klient after start adds handler for event that occurrs when somebody writes something. By accident I found out that when one client crashdown next time the event is fire I ve got exception on server and full suport for events in remoting stop working. This is becaus...
    Events and asynchronous handling
    Develop.com's DOTNET List
    The preferred way would not be to spawn your own thread just to fire the event. This is exactly what async delegate invocation is designed for. You can fire the events asynchronously and let the clr managed thread pool take care of the threading details for you. For example: using System; public class Foo { public delegate void FooDelegate( string msg ); public event FooDelegate OnSomething; publi...
    Exception - BeginRead, EndRead
    microsoft.public.dotnet.framework.compactframework
    Hi I have a class that uses TcpClient/Socket to handle tcp connections. As soon as the connection is made any data arriving must be handled by the client of the class. It all works fine on desktop and even on the compact framework the only difference being that if I leave it for too long on my PocketPc I get an exception. The way I do the reading of bytes is by NetworkStream.BeginRead pointing to ...
    First impression VS.NET final
    microsoft.public.dotnet.framework.windowsforms
    I am writing this letter to the in the hopes that we may be able to better understand the directions new development may unfold in the near future. I encourage people to respond to this letter with their own insights, and hope to gain new knowledge about Microsoft .NET platform. Jumping into things, first and foremost I must say I am a bit perplex and somewhat distraught by the overall design of w...
    Forms, threads, and BeginInvoke
    microsoft.public.dotnet.framework
    Can someone explain this to me. I have a function that is called asynchronously using a delegate, which has a callback function. In the callback function, I want to create a new form. However, the call to BeginInvoke on the delegate creates a new thread which the form is attached to. This causes the form to not receive any events because there is no messsage loop set up on that thread. Of course, ...
    Getting SerializationException trying to serialize an object to a MemoryStream
    microsoft.public.dotnet.framework
    I'm trying to serialize a class over a socket via a MemoryStream. I declare an array of bytes, construct a MemoryStream from this array and then serialize my object to the MemoryStream. Then, I pass the MemoryStream.GetBuffer() to the BeginRead() method of the socket object. On the other end, I declare an array of bytes, construct a MemoryStream from it, and then deserialize the object from that w...
    Getting SerializationException trying to serialize an object to a MemoryStream
    microsoft.public.dotnet.general
    I'm trying to serialize a class over a socket via a MemoryStream. I declare an array of bytes, construct a MemoryStream from this array and then serialize my object to the MemoryStream. Then, I pass the MemoryStream.GetBuffer() to the BeginRead() method of the socket object. On the other end, I declare an array of bytes, construct a MemoryStream from it, and then deserialize the object from that w...
    Getting SerializationException trying to serialize an object to a MemoryStream
    microsoft.public.dotnet.languages.csharp
    I'm trying to serialize a class over a socket via a MemoryStream. I declare an array of bytes, construct a MemoryStream from this array and then serialize my object to the MemoryStream. Then, I pass the MemoryStream.GetBuffer() to the BeginRead() method of the socket object. On the other end, I declare an array of bytes, construct a MemoryStream from it, and then deserialize the object from that w...
    Guaranteed 72 hour response?
    microsoft.public.dotnet.distributed_apps
    When my client application (Winforms) starts up, it adds handlers for both AppDomain.CurrentDomain.UnhandledException and Application.ThreadException. Then, when my middle tier throws exceptions, they correctly go back to the client and are logged, dealt with, etc. In the middle tier, I want to split some heavy processing off into two new threads. However, these new threads apparently don't know a...
    Help getting MSHTML to run under .NET
    microsoft.public.dotnet.framework.interop
    Hello, I'm trying to use MSHTML to load an HTML document from across the web into an IHTMLDocument2 (HTMLDocument class under .NET) object and sink the readyStateChange event to know when it is loaded. I've done this a hundred times from script but under .NET its very problematic. I am unable to get the event to fire, or the document to seem to load anything. Here is my code (simplified): using ms...
    Help with DNS.BeginResolve and DNS.EndResolve
    microsoft.public.dotnet.languages.vb
    Hi, This doesn't work and I can't figure out what I'm doing wrong. Private Shared DNSDone As New ManualResetEvent(False) Dim hostInfo As IPHostEntry Sub buttonclick() Dim state As New Object() Dns.BeginResolve(ServerNametxt.Text, AddressOf QueryNewServer, state) DNSDone.WaitOne() end sub Sub QueryNewServer(ByVal ar As IAsyncResult) hostInfo Dns.EndResolve(ar) DNSDone.Set() End Sub
    Help, looking for: asynchronously send/receive example with a tcp sockets
    microsoft.public.dotnet.languages.csharp
    Who can give me an URL or example code about how to use the asynchronously receive and send methods from a tcp socket? Something like... class AsyncTest{ Socket s null; public void Connect( string Host, int Port ){ if ( null ! s ) { s.Close(); } s new Socket( AddressFamily.InterNetwork , SocketType.Stream , ProtocolType.Tcp ); IPAddress hostadd Dns.GetHostByName( Host ).AddressList[0]; IPEndPoint ...
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