C# - What's The Best Way To Understand And Analyze Performance
Jan 9, 2010
Until now, I have not create any massive applications using ASP.Net. However, I am looking to create an application that has the potential to be very performance intensive. So I am looking for some tools or best practices when it comes to performance. I would like to be able to know how to: See my current performance (good or bad) View items that need fixing And being able to compare two performance variable items would be great as well.
It is a very large .txt file (more than 3M), and produced everyday, the content is user's system log like below:
2007-11-01 18:20:42,983 [4520] INFO GetXXX() SERVICE START 2007-11-01 18:21:42,983 [4520] WARING USER ACCESS DENIED 2007-11-01 18:22:42,983 [4520] ERROR INPUT PARAMETER IS NULL CAN NOT CONVERT TO INT32 2007-11-01 18:23:59,968 [4520] INFO USER LOGOUT
I need to create a website that analyze a SQL database with Chart; I have some application that modify the database, and i want to show the changes in another application using a Chart.
I have developed a website in asp.net framework 2 . This website is being hosted in two different servers without any change in code. My issue is about the performance of these 2 sites. One website is taking much time for inserting datas to the DB (SQL server 2005). 2 websites are having different DB server.
I think the issue is for the DB server. How can we rectify the DB performance while insertion and Is there any other cause for this permance issue?
I am not sure if this is the right forum. I can not find a forum for LINQ.
I am working on an application using LINQ. Application performance is not up to par and my tests show that it is LINQ queries that are slow. I was wondering if anybody can recommend where I can find an article about optimizing LINQ performance maybe by compilation or other methods.
I am creating a service oriented application where trying to have everything using services....however there is something I am not sure of , I am having a page that calls the database at the page load...so what would be better and faster?? to call database in pageload , or to call wcf service from javascript during javascript load ??btw , I am using a repeater in the page , but I have created somekind of an engine to create the suitable html so...I'll be creating the repeaters html using the wcf and resend it back to the page If I am using a wcf service at the start.
What is the meaning of this error and how to avoid it:
System.Web.HttpException: Server cannot modify cookies after HTTP headers have been sent. at System.Web.HttpResponse.BeforeCookieCollectionChange() at System.Web.HttpCookieCollection.Remove(String name) at NopSolutions.NopCommerce.Common.NopContext.SetCookie(HttpApplication application, String key, String val) in D:ivolino_3D21012010Nop.CommonNopContext.cs:line 158 at NopSolutions.NopCommerce.Common.NopContext.SessionSaveToClient() in D:ivolino_3D21012010Nop.CommonNopContext.cs:line 127 at NopSolutions.NopCommerce.HttpModules.MembershipHttpModule.Application_EndRequest(Object sender, EventArgs e) in D:WorkOwnNopCommerceSolutionNopCommerceNop.HttpModules.MembershipModuleMembershipHttpModule.cs:line 140
i created an intranet based website(information Portal)...i would like to know the pages each user visits and i want track there behavior...what tools should i include..
I am having a problem understanding how polymorphism works when using generics. As an example, I have defined the following program:
public interface IMyInterface { void MyMethod(); }.....
So, at least I haven't completely misunderstood that. I am unsure exactly how I am to write a method that accepts a generic collection of classes that conform to the same interface.
I have a plan to completely hack around this problem if need be, but I would really prefer to do it properly.
I have a table with 3 columns Itemid(int),Itemname(string),ItemDesc(string).. Im trying to use a radpanelbar to display this information, where the bar initially shows the item name and on clik/expansion it will show the item description.. I tried looking at the examples on telerik site but didnt understand the point of datafieldid and datafieldparentid. What are they used for and what would their values be for my table.. I tried using different combination of column names for these two ids but I still didnt get it..
The above is the code generated for asp server button button control on browser. Now my query is that irrespective of ValidateValue() returning true/false __doPostBack('ApplyBtn','') function is not showing any effect for me. My understanding is that string passed to onclick acts like function body, and return will from first function will return control preventing second function from execution. Is that correct?
I understand the concepts of windows workflow...But unable to understand how to implement it...Can anyone tell me some good sites which explains Workflow with coding???
in my current project I used a AsyncFileUpload control from AJAX Control Toolkits. After I got the async file upload part working, I needed to filter the file type so users can only upload image files. I found the following code off web and it worked well:
[Code]....
The problem is : I don't understand this javascript. What is the type of args parameter? Where are the methods such as "get_fileName()", "set_cancel()" defined? I went to the homepage of the AsyncFileUpload control but couldn't find any documentation regarding the "args".
Does outputcaching VaryByParams in webforms understand route parameters? Such that if I have a route similar to "Content/{filename}/{more}" that I could do VaryByParams="filename" and have it return cached results based on filename and ignore any values in the more?
Please help to understand this RegEx statement in details. It's supposed to validate filename from ASP.Net FileUpload control to allow only jpeg and gif files. It was designed by somebody else and I do not completely understand it. It works fine in Internet Explorer 7.0 but not in Firefox 3.6.
as it uses the relative path the http module is unable to understand the path and throwing following error
The file '/Root/Pages/Master/Site.Master' does not exist.
error occurred during the parsing of a resource required to service this request. review the following specific parse error details and modify your source file appropriately.
I don't understand how to use this feature called "Build deployment package" in VS 2010. I go to my properties and go to package/publish web and setup it up. I click "Create deployment package as zip"
I then build the deployment package and get a zip file.
When I look into and start drilling down in the folders I find I get a path like this
[Code]....
I don't understand why it makes all these folders and on top of it why is it my path to where my soultion sits. I don't like the fact that now everyone can look in the zip and see my accoutn name, where the file was sitting, that I am using subversion.
Then it makes it so confusing to when a error happens. I deployed it on my IIS windows 2008 server and ran it and I had a error show up. It pointed to the file where the error occured and the path was point to my desktop.For the longest time I could not understand why it was pointing to my windows 7 machine desktop when it was running on a windows 2008 server located in a different country.
It was not until I found out with the zip path it made sense. But that is confusing when it is pointing to paths that don't exist on that computer.
When the data grid connects to a sqldatasource control and displays say 10 records with 5 pages from a total of 50 - has the application downloaded all 50 records or only the 10 on page 1? Is that why I use code to get the data and then implement paging myself or does the application know the 50 records are downloaded and when you click to the next page it works locally?
