.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

Automatically generated wrapper for COM object handles all events!

Posted By:      Posted Date: October 19, 2010    Points: 0   Category :.NET Framework


I have a COM-object, and use it in my app.

COM object raises many events and my app subscribed on some of this events.

When I create this COM-object, my app loads the processor on 50%.

I'm traced it with profiler and found that the processor is loaded by processing of events on which I didn't subscribe!

Than I make a conclusion that .NET processes all events of COM object, and if my app is subscribed - raises my handlers.

How I can disable subscribing on all events?? Or how I can generate Interop dll without events that i don't want to process?

View Complete Post

More Related Resource Links

SQL Agent Jobstep output file contains automatically generated header

Hi,   I've created a stored procedure that creates a script to create a number of objects within the database (based on what existing objects are in the database).  From Management Studio, this works fine, and the output is exactly as I want it.   I'm now trying to create a job that will execute this stored procedure, and deposit the results into a file somewhere on the server.  When the job runs, the script is created in the correct place and is essentially ok.   However, there are a couple of questions I'd like to ask.   Why does SQL Server Agent put a header at the top of the output file?  I was hoping to be able to use that output file 'as is' and execute it automatically to recreate my objects when required.  (Obviously, I can manually remove the header, but this is an inconvenience in this situation).  How do I stop it?   Also, when executed from SSMS, the output is correctly line-spaced.  But, the output from the scheduled job adds an extra line between each line of text, which is, again, inconvenient.  Why does it do this, and how can I prevent this (again, without manually editting the output)?   Any thoughts and help greatly appreciated.   Cheers Simon

Automatically inserting server-side page events into C# when using code separation

I know this is a really basic question and I have spent the last half hour trying to find an answer so please forgive me if this has been asked before (it probably has)....When I create a web page with the C# code placed in a separate file I can't seem to easily add page events (apart from Page_Load). When I open the C# class code for the page all I see in the two drop-down boxes above the code is "Default" (with no other options in the drop-down) in the left-hand box and "ApplicationInstance,form1,Page_Load(object sender,EventArgs e),Profile" in the right hand box. I can't see a way to create the code for the other page events from either of these drop-downs.If I keep the C# code in the same file (i.e., not use code separation) everything works fine - I see "Server Objects & Events, Page, Form1, etc..." in the left hand drop-down and I can create new events in the right drop-down when either Page or Form1 are selected in the left box.Am I missing something really obvious?Many thanks for any suggestions

Reference to a non-shared member requires an object reference in code generated by ASP.NET



I am working on converting a project from C# to VB and am facing this weird issue. 1 page cannot compile and I get the reference error, but the weird thing is that the compiler shows the error as coming from ASP.NET generated code. Visual Studio shows me that error is coming from my ASPX page. I cannot seem to figure out why or where this error is occuring. Also if I take the inherits attribute out I don't get the compilation error. The code in aspx page is below:

<%@ Page Language="VB" AutoEventWireup="true" CodeBehind="diff.view.aspx.vb"  Inherits="MR.ControlApp.diffview" MasterPageFile="~/Site1.Master"%>

<asp:Content ID="Header1" ContentPlaceHolderID="head" runat="server">

    Page: <select onchange="sel(this);">
        Dim j As Integer = 0
        While j < pageCount
           <option <%= IIf(currentPage = ( j + 1 ), "selected", "")  %> value="<%= j+1 %>"><%= j + 1 %></option>
        <%j = j + 1
        End While
    <% 'Print(); %>
    <div style="font-family: verdana; font-size: 10pt; font-weight: bold">
        MDM Data Inconsiste

COM Object Interop DLL generated on Visual Studio 2010 does not work on 64-bit system



When I add a COM object Example.dll as reference, it will automatically generate a file called Interop.ExampleLib.dll to my bin folder. It works fine on 32-bit system but when I try it on a 64-bit my program fails to run.

I replaced the Interop.ExampleLib.dll with one that I generated a while ago using Visual Studio 2008, and it works on both 32 and 64-bit system.

Anyone knows what's the problem?

Thanks in advance!




SharePoint 2007 Automatically Generated Hyperlinks stopping at "


Hi there,

In any Column involving text, SharePoint automatically identifies web addresses and creates a hyperlink. We find this to be a VERY useful feature in not only SharePoint but all Office products.

However, when the address involves a double quote (") the hyperlink stops short resulting an erroneous link.

e.g. http://intranet/digitalphotos/Supporting%20Webpages/photo_search_results_thumbnails.aspx/Results.aspx?k="1321-2-115"&s=Photos

In the case above, the automatically generated hyperlink stops after the equals (=) sign.


Raise Events in remoting object


Hello i m new to .Net Remoting and I have following scenario and don't know how to deal with event raised on service side and handled on client side.

My remote object starts controller and controller further starts scheduler

Scheduler is responsible for scanning all jobs in queue and adding more jobs in a queue.

Queue member raises an event which i want to handle on client side

Could anyone help me to get solution for this


Thinking about new C# method prototypes: object as dictionary

I recently had to write a small Flickr API. I know many .Net API for Flickr already exist but I needed one for a Silverlight application. Whatever, it's only about building some querystrings so I did it by myself. It's been an opportunity to think again about a classical question: how to pass parameters to a method ?

Imagine you have a generic method to call some Flickr functions.

WCF Tutorial - Events and Callbacks

we described how to make a very simple client/server application where clients would call functions on the server through a shared interface. In this tutorial, I'm going to expand that application to allow the server to execute functions on the client by using callbacks. Essentially, this is WCF's mechanism to allow events to be raised from the server to it's connected clients.

C# Object Oriented Programming

So far in C# Essentials we have looked at the basics of programming in C# such as variable types and flow control. Although it would be possible to write a functional program using these techniques, there is much more to becoming a proficient C# programmer. C# is, above all, an object oriented programming language and as such any C# programmer will be expected to create object-oriented applications using this language.

Object Oriented Programming

Four core concept of OOP Object Oriented Programming. 1.Inheritance, 2.Polymorphism, 3.Abstraction and 4.Encapsulation

Object-Oriented Programming Concepts

This is the first in a series of articles describing the use of object-oriented programming techniques as implemented by the C# programming language. This series follows the C# Fundamentals tutorial that beginners are advised to read first.

Overview of SharePoint Object Model

SharePoint offers a set of structured server-side objects those are widely used to program SharePoint Applications. These objects are hierarchically arranged and you can drill down through the object hierarchy to obtain the object that contains the components of SharePoint Application you need to use in your code.

What is the difference between "dynamic" and "object" keywords?

Let's take a quick look at the object keyword first. I'm not going to talk a lot about it because it's been around since C# 1.0. This keyword is nothing more than a shortcut for System.Object, which is the root type in the C# class hierarchy. (However, as Eric Lippert pointed out in his blog post, not everything in C# derives from object.) This is a powerful mechanism, since you can assign almost any value to instances of this type.

Compiler-generated scopes for local variable declarations

I was tasked with understanding and fixing a bug on error reporting with foreach iteration variables the other day, and it got me thinking about local variable scoping rules in C# in general. First, the bug.

Delegates and events in c#.net

People often find it difficult to see the difference between events and delegates. C# doesn't help matters by allowing you to declare field-like events which are automatically backed by a delegate variable of the same name. This article aims to clarify the matter for you. Another source of confusion is the overloading of the term "delegate". Sometimes it is used to mean a delegate type, and at other times it can be used to mean an instance of a delegate type. I'll use "delegate type" and "delegate instance" to distinguish between them, and "delegate" when talking about the whole topic in a general sense.

How to bind GridView and DropDownList controls using DataTable object

In .net framework 2.0, you can load a DataTable in memory by consuming a data source using a DataReader. In this version you will find the flexibility in accessing the DataReader means write access code once and use again and again using DataReader. To see the functionality of DataTable consider an example that is created using VS2005.

How to listen to events within a listview



I've got a listview and I've put a button control in one of the columns, I'm trying to figure out how I have listen to the button click within a certain row, but can't see the button in the dropdown for the IDs I can generate events for.

I'd like to get the primary key of the row that's been clicked on and then run a sql statement against it.

Any help would be appreciated.

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