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I'm trying to profile a managed application's memory using PerfMon. I'm using the "# Bytes in All Heaps" performance counter and it does work fine. However, I'm not sure if that counter represents the heap size or just the allocated bytes on the heap.
If it represents just the allocated bytes, is there any way to find out the true size of the GC heap (the amount of address space it has reserved) at a particular point in time?
Regards
Senthil
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Need to design the model such that. web service(s) should send the data to the client whenever the data is changing in the the RDBMS data base.
eg. suppose more than one client is connected to the server. they are adding/updating/deleting data. This changes should reflact to all the connected user dynamically .
How should achive this kind of requirement using web service (In Smart Client architecture model).
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What you're trying to achieve is not possible with webservices. The best way to do it would be to have the clients pool the server every 'x' seconds and see if there are changes.
A good way to do it is to assign each database update an "ID" (I love GUIDs for that). It would work this way: Client send the ID to the server. The server checks if the ID provided matches the last update ID. If it doesn't, the client will know it needs to pull data from the server.
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Hi all,
I've got an application that I've added language capabilties by means of resource files and cultures. This works ok and I have no problem with it what-so-ever. I now want to add another resource that holds all the images my application will use. My problem comes whenever I try to use the resource. My app complains about the images resource or when I manage to sort that problem it complains about the language resource.
I have had both working on occasion but it seems to be very flakey and sometimes chooses not to work for no apparent reason other than the project being closed over night. Could someone explain to me the exact way in which to add .resX files to projects and what setting should be set in the project configuration because I think I may have misunderstood the process somewhere along the road.
Thanks in advance.
Richie
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Hi, how would I get Regex to match everything BUT the expression "\\[a-z]\[\d+\]" (i.e. \a[2],\z[14],etc.)? I tried using ^ in brackets, but it only seemed to match single characters. For example, [^ab] took out all my a's and b's instead of taking out only "ab" in matches. How do I formulate a NOT this string expression? Thanks.
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The [] means you've got a character set there. Try using look behind. This: (?<=ab) should find the character string 'ab' at the end of the current match, and exclude it from the result. But I'm not sure how the rest of the regex would work with it.
Christian Graus - Microsoft MVP - C++
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Is it possible to create any kind of script page that would serve as a tunneling application on a server? ASP/PHP or a .NET Webservice? Then use a windows application to perform the tunneling, etc...just like http-tunnel and hopster.
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Are you looking to be able to manage tunnels through a web app?
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Yeah...is it possible? If not a regular page, maybe a .NET Web Service...I believe it should be possible: the Web Service should retrieve the given page (in the case of HTTP) and send them back to the client's Windows Form application...
I need to know how to make it work and if I could use it in tunneling SOCKS
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You could write a tunnel which uses an XML configuration file. Then have it change it's settings whenver the file is updated. Then create a web application to edit the configuration file. The Configuration Application Block from Microsoft would work well for this.
If you want reporting from the tunnel, have it log to a file. I like XML logs. log4net can do whatever kind of log you want. Then you can create a web app to read, format and display the log file.
I'm personally working on a TCP proxy that will search and replace content in the stream. I've got the filters working fine, working with producer / consumer threads, but I can't get the proxy acting likce a TCP server and client working. Anything like what you're working on?
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Yeah you could say we're stuck in the same field. Although, I wasn't even able to filter the stream (this is my first proxy project). Can u mail me ur work so far? I need to know how to exchange messages with the stream.
I found a very nice class that wraps all the proxying u need (HTTP, SOCKS and even FTP transfers). Just instantiate and call methods! I'm still in the early stages of testing it and it looks promising, however I need to go a little deeper in asynchronous programming (I still suck big time at that).
If you're interested let me know.
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Hello everybody 
I have writen dll file in C#. It is class with some functions i need to use in another application. But i need to have configuration file for this dll, to pass some parameters to it ( like app.config is for .exe application). How can i do it..?
If someone knows anything about it, please help!
Thank you
Eka
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There's no built-in configuration feature - the assumption is that DLLs are simply libraries of code utilised by some application, and therefore that the application is configured - not the library.
If you want to read a file and treat it as if it were a configuration file, you can use a NameValueSectionHandler[^]. You'll need to give it an XmlNode pointing to the appropriate part of the file.
Stability. What an interesting concept. -- Chris Maunder
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Thank you Mike.
I saw NameValueSectionHandler overview in MSDN and still i can't understand, how can i use it.. 
I need something like .config file (it can be even .txt file), wich will be in the same directory with my dll. i can't understand how to access this file from dll. it is easy for .exe, but for dll, i can't find the solution.
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Add a ReadConfigDataFromFile method to the class in the dll?
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hi Dan
I was trying to do so.. but the problem is i cant access this file from dll like this: Application.StartPath + "filename.config" (it doesn't work, because Application.StartPath references to c:\windows\system32 and not to the directory where my .dll file is placed)
thank you
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Hmmm. store the dll path in the registry perhaps?
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Guess it's a good idea!
I'll try to do it.
Thank you so much Dan
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Hi all,
I am new to .NET PocketPC SDK.I have one major issue in PocketPC application.I want to save bitmap files in PocketPC and open the same in write mode.I am able to save the bitmap file and open it in read mode,but i am not able to open it in write mode.please reply.
Regards,
S.Sevugan.
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Okay, I have had no luck and somehow I know this should be easy. I made an app that receives data and processes the info and does calculations, etc. But I can't get the data to write to anything on the form. I know how to use form button and such, but I want the app itself to write to a textbox, datagrid, whatever on the form. But I can't get it to work. Any help is greatly appreciated. I'm using Visual C# .Net. I can make it write to the console, but I want it on the end user's app form.
Thanks,
RABB17
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What exactly is the problem you're facing? Text that you write to the textbox doesn't appear? Throws exceptions? Are you writing to the form controls from a different thread?
If you can show us the offending piece of code, it would be much easier.
Regards
Senthil
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I have my Mainform which gets initialized upon start of the .exe file.
Once the user clicks Start the program receives info from other apps, hence no further user intervention happens. This info is then processed based on the what the other apps are doing, hence when a data app does something, the MainApp process that info and returns a calculation. This is done over and over as the data app returns new information, but never with any additional user intervention.
I can do a printout on a command prompt, but I want it to appear on the MainForm. It's always just a single line of text.
But whenever I reference the form within the MainApp, I get an exception error.
"Unhandled Exception: System.NullReferenceException: Object reference not set toan instance of an object." to be specific.
Hope that explains it better. Any help is greatly appreciated!
RABB17
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How does MainApp get a reference to MainForm? From the error, the MainForm instance in MainApp is null. Make sure MainApp has a valid reference to MainForm before attempting to call methods on it.
Regards
Senthil
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First, I appreciate your helping on this.
The namespace in MainForm is IRead.
In MainApp, I have:
"using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using IRead;
using System.IO;
using System.Resources;
then following calculations I call
printDecision();
which looks like this:
public void printDecision()
{
mainform.MainForm_UpdateText();
}
*********************************************************
My MainForm looks like This:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using System.IO;
using System.Resources;
using IRead
namespace IRead
{
#region Public Delegates
// delegates used to call MainForm functions from worker thread
public delegate void DelegateAddString(String s);
public delegate void DelegateThreadFinished();
#endregion
///
/// Main form for WorkerThread Sample
///
public class MainForm : Form
{
.
.
.
public MainForm()
{
InitializeComponent();
MainForm_UpdateText();
}
And further on, inside class MainForm but outide public MainForm():
public void MainForm_UpdateText()
{
this.textBox11.Text = MyApp.finalDecisionString;
}
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Rabbit17 wrote:
public void printDecision()
{
mainform.MainForm_UpdateText();
}
But where has mainform been assigned to an instance of MainForm? That's where your problem is, you need to somehow pass an instance of MainForm to MainApp, if you want to call methods/properties on MainForm. I'd suggest adding a property to MainApp, something like
class MainApp
{
public static Form MainForm
{
set { mainForm = value; }
}
}
class MainForm
{
...
public MainForm()
{
...
MainApp.MainForm = this;
}
}
Regards
Senthil
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