.net

does the object creating a sub appdomain get instantiated in that sub appdomain?

does the object creating a sub appdomain get instantiated in that sub appdomain? I have an object that is in the main AppDomain and it is creating another AppDomain and it requires the calling class to be serializable and is creating an instance of the calling class in the new sub AppDomain. I'm wondering if that is how it is, or if th...

Winforms MaskedTextBox - Reformatting pasted text to match mask

I have a MaskedTextBox control that, in our case, is collecting social insurance (tax) numbers (without a ValidatingType though since the string representation including the mask literals). A social insurance number is 3 groups of 3 digits separated by dashes. Sometimes spaces may be typed or entered instead of the dashes. The configura...

Using LINQ-To-Entities to Generate Information

I am working on a website where a user can add tags to their posted books, much like is currently done for questions on Stack Overflow. Classes: Books { bookId, Title } Tags { Id Tag } BooksTags { Id BookId TagId } Here are few sample records. Books BookId Title 113421 A 113422 B Tags Id Tag 1 ASP 2 C# 3 CSS 4 VB 5 V...

Is there a way to create a new instance for IRequestDictionary and IStringList on .NET?

We are working on a C# DLL that stores the values of a Classic ASP Session. Everything is okay but some QueryStrings being stored in Session. Problem is: we are able to read the QueryString from the DLL using IRequestDictionary and IStringList, but we can't find a way to recreate them the next time a page ask for them. We have stored a...

WebClient.DownloadString() Not Producing Exact HTML

So here's the deal. I'm creating a spider bot for a website that scans all the product pages and records the product data. I'm using C# and the WebClient library to download the HTML string. The site I'm crawling must be specially made because the HTML that is received from WebClient.DownloadString() is different than the HTML that I get...

.NET WebService Security who can see and use.

Trying to firgure out how to test the security of a WebService. Is there some way to search a site for webservices? I have 2 applications one has a webservice and the other a reference to that service. I let visual studio build the reference in the App_WebReferences folder. The webservice works, but i started wondering, can anyone ac...

sharepoint spweb and spsite disposal

I've been using the following code in a .NET 1.1 SharePoint 2003 environment and it works great: try { site = SPControl.GetContextSite(Context); web = site.OpenWeb(); ... } catch (Exception export) { output.Write("...

Insert a Join Statement - (Insert Data to Multiple Tables) - C#/SQL/T-SQL/.NET

I have a Winform that has fields need to be filled by a user. All the fields doesn't belong to one table, the data will go to Customer table and CustomerPhone table, so i decided to do multiple inserts. I will insert appropriate data to CustomerPhone first then Insert the rest data to Customer table. Is it possible to Join an Insert OR ...

Passing around a SqlConnection

I have created a TransactionScope and within the scope various items are created and updated in the database. During this process I make a lot of calls to the database. Originally I opened a SqlConnection in the beginning of the TransactionScope and passed it around to any function that made a DB call then I closed the connection after a...

!gcroot output leads nowhere

I am troubleshooting memory fragmentation in an app pool, as evidenced by a small number of Free objects consuming the most space on the heap: 0x000007ff00256728 6,543 3,890,208 System.Collections.Hashtable+bucket[] 0x000007ff002649a8 7,297 22,979,560 System.Byte[] 0x000007ff001e0d90 251,347 30,374,304 System.String 0...

Which isolation level should I use for the following insert-if-not-present transaction?

I've written a linq-to-sql program that essentially performs an ETL task, and I've noticed many places where parallelization will improve its performance. However, I'm concerned about preventing uniquness constraint violations when two threads perform the following task (psuedo code). Record CreateRecord(string recordText) { using ...

ASP.NET ListView - Render THEAD/TBODY Tags

I have an ASP.NET ListView control (see below). Unfortunately, when a ListView control is rendered is does so absent of HTML tags such as THEAD/TBODY. This is causing a problem for me because the CSS styling that I'm using needs those tags. <asp:ListView ID="ListView" runat="server" DataKeyNames="Id"> <LayoutTemplate> ...

Improve performance of sorting files by extension

With a given array of file names, the most simpliest way to sort it by file extension is like this: Array.Sort(fileNames, (x, y) => Path.GetExtension(x).CompareTo(Path.GetExtension(y))); The problem is that on very long list (~800k) it takes very long to sort, while sorting by the whole file name is faster for a couple of seconds!...

why does my C# client that uses Library A need to have a using statement for Library B (which A uses)

Hi, I have: Main Program Class - uses Library A Library A - has partial classes which mix in methods from Library B Library B - mix in methods & interfaces So in Library B when I include a partial Node class which implements INode (defined in Library B) I suddenly get an error in my main class where it uses Node from Library A. The...

Unit Testing & Fake Repository implementation with cascading CRUD operations

Hi, i'm having trouble writing integration tests which use a fake repository, For example : Suppose I have a classroom entity, which aggregates students... var classroom = new Classroom(); classroom.Students.Add(new Student("Adam")); _fakeRepository.Save(classroom); _fakeRepostiory.GetAll<Student>().Where((student) => student.Name ==...

Alternative way to notify the user of an error

I have a winform software that communicates with hardware through a protocol. Sometimes error in communication happens and i would like to notify the user. Errors could be for example: timeouts, crc errors, physical disconnection etc... I have a communication window in which i show these errors, but by default this is hidden. The use...

Sync Framework sync database view

can microsoft sync framework sync database views ? or in your SelectIncrementalInsertsCommand can you select and join to multiple tables kinda doing something like a view? ...

Real world examples of Rx

I've been playing around with the Reactive Extension for a little while now, but mostly limited to handling/composing user driven events within a WPF frontend. It's such a powerful, new way of doing async programming, and I'm curious as to what other people are doing with it, and where do you think it might be able to improve the way we...

Best naming for a property?

Which of the following three options would you choose for a property name in C#, and why? YearToDateWages YTDWages YtdWages ...

Generics and Exposing .Net Types For COM Consumers?

I remember seeing a question on my official MS 70-536 exam that talked about a simple class that was designed to be exposed for COM calling clients and etc. of all the members defined in the classes I chose the answer D. The one that used a generic. My question to you guys is this: If you were designing a .net custom type that was to be...