I am noticing that the methods in MS's data application block are all shared. Any implications for performance with this? Seems like if users are sharing methods, we could take some sort of hit if they are accessing the same methods. Thanks, Dan ...more >>

Hi All, I have a situation where I have several directories each containing hundreds of thousands of files. I have written a program which looks at each file in a directory, moves it to a subdirectory of a more manageable size, and updates the file location in our database. I initially used...more >>

Hi, I have a service using .Net remoting. This service creates one static instance of my main server which keeps an hashtable of customers. Thoses customers have 2 hashtables for visitors and employees. All these hashtable are created with Hashtable.Synchronized. Then, I access the server w...more >>

Hello all, I have a windows form application which has a simple buttons toolBar, menuItem and a tab control with 3 tab pages each holding a treeView and a listView. When I checked to see how much memory usage my application demands I was surprised to see that even when the treeViews and li...more >>

hi all when i serialize objects, they seem to get 100 times the original size. how can i decrease the size of serialized objects? assaf ...more >>

Hi, I'm trying to profile my service using the CLR Profiler, CLRProfiler.exe The CLRProfiler works OK for the sample Apps, but is not working for my "Service", Initially the CLRProfiler does start up my service (a refreshed view of the Component Services UI, shows my service as movi...more >>

Reproduce: 1) run CLR Profiler (v2.0) 2) File->Profile ASP.NET application 3) Start second instance of CLR Profiler 4) File->Profile ASP.NET applicaiton in the second instance 5) Second instance crashes Error: System.NullReferenceException: Object reference not set to an instance of an...more >>

On our test and production servers, I'm missing all of the ASP.NET-related performance objects in perfmon. I do have them, however, on my workstation. We're running ASP.NET v1.0 on production. How can I install the performance counters? Thanks...more >>

hi all i have simple form. i add a background image of my desktop. i set the AutoScrollSize to {1024, 768}. i run the app. when i scroll, the cpu shoots up to 100%. and the bitmap does not draw well. compare this to Win32 api code (that i have dll imported), that uses only 1%. bu...more >>

My form has a picture control. When I move my mouse over it, it translates the coordinates to a different coordinate set and then updates two static texts with the new coordinates. I attached a MouseMove event to the picture item to achieve this, then I noticed my RAM was being drained at ov...more >>

I'm missing some performance registry keys under hklm\system\CurrentControlSet\Services\.NETFramework\performance\ Any idea how to populate these values? Is an install or update missing? More specifically I should be seeing the following and I'm not: Last Counter REG_DWORD ...more >>

Hi Everybody i have a problem regarding to ASP.NET custom control , can anybody help me? my problem is 1) when i placed my custom control on page at design time i am not able to select the child control of my custom control,how can i do this 2) second thing how to allow custom template co...more >>

I'm going to review an application written in VB.NET. The problem is that during using application (after few hours) it gets slower and slower. After my first impression (I look at it for 5 minutes) is is not, a memory problem. It is a database intensive application but it is not the serve...more >>

Hi, I have some trouble with performance on a aspx application. If I sit locally on the webserver it runs really fast, but if i access the page remotely it takes a really long time to load. Trace from accessing page localy: aspx.page Begin Init aspx.page End Init ...more >>

(Type your message here) -------------------------------- From: pepe perez Hi, i need pass datas from structure DataSet to SortedList but i don?t know the method. Anybody can help me? Thanks (very much) ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/)...more >>

Hi everyone, pls forgive me for my lack of knowledge and skills if my question sounds very stupid. I am trying to implement a video conferencing software and I am currently looking at a few set of technologies, among them WMP, RealMedia, H.323 and XviD (not sure if it is suitable for streaming e...more >>

I have installed Microsoft Application Center test on 2 machines both signed on to our domain as the same user. Firstly, besides Help on ACT and web version are there any user manuals for ACT which you can forward me a link to. I see an option called Clients under which I see Default Client ...more >>

Hi, Maybe someone can shed some light on TCA... I've read a few articles about TCA and here's what I understand: 1. You gather statistics for your web app and put together a user profile that show the actions performed by users and how often they occur. 2. You break the user profile into ...more >>

Hi, I am developing C#.net web base application. I want to know how I can page count a same page. I want to this type. 1) When a new user open page he/she see the number of pages open same time and total how many time this page open. Suppose 10 user open search.aspx every user see this page c...more >>

I am using a third party COM componenet which is not thread safe in a .Net web application using Interop. When two threads (two requests) are trying to access the componenet it is giving an error and crashing. It works fine if the request is made only one at a time. How can I code around this pro...more >>

Hi, Now I am developing C#.net Web Application. It is almost completed. Now I want to check performance testing of it. I want... 1) Create 100 user environments, mean 100 users simultaneously request a same page I want to see response time and load on server. 2) As per my idea we ...more >>

Hello All, I'm trying to process a couple of gigs worth of data, which I= have to process in blocks of an unknown size to be determined= from the data itself=2E If I use a DataAdapter on the whole set= of data, the docs tell me it will load the whole mess into= memory, and I haven't got ...more >>

Hi there, We have a large database application written in managed C++ which loads 100+ managed c++ dlls. The app also includes some unmanaged classes some of which has instances declared globally. However every dll is compiled with managed extensions on. We are encountering occasional initial...more >>

Hi, I am looking at Profiling my ASP.NET app, as despite being small, with all resources closed and disposed it forces the w3wp process on my hosters server to recycle, and so I am trying to cut down on memory usage and so wondered which of the profilers available for a price ofr free would se...more >>

I need help with architecture design,please: I have a server which constantly downloading messages from the internet and store them inside a data base. the server have two administrators options: one is a local windows application,and the second is a web application The administrator ca...more >>

Background... I've been working on a project for some months now which runs code that is CPU intensive, therefore I have been very careful to keep track of the code's performance and to make optimizations where possible. I just installed .Net 1.1 SP1 and was curious to see how the code perfo...more >>

I have a a project where real-time stock data comes in (over a TCP socket) and needs to be displayed on a grid. The obvious solution is to add the data to a DataTable and bind the table to a grid. The problem is that the .NET DataTable is not very efficient. When I am receiving hundreds (so...more >>