I will get data in DataTable. I am going to iterate data in foreach. I will have all types of data in Datatable. Now I need to find Double for each item (string) in DataTable. How to find IsDouble for string? Ex: I have "21342.2121" string. I need to covert this to Double. But sometimes the data will be "TextString". So I can't use Do...
This is a specific question to DotNetOpenAuth. I opened up the .NET template, and found that there are 2 tables "Nonce" and "OpenIDAssociation" and there are 2 SPs that do the cleanup upon on expiration date. What exactly do these 2 tables do? Why do we need to keep track of the association? ...
We're in the middle of debugging some memory issues. We were watch 5 instances of the same app. We stopped 3. The Gen2 Heap size went from about 5M to almost 10M, and the Gen0 and Gen1 heap sizes changed insignificantly. This is the exact opposite of what I'd expect. I expected it to reduce in size, and would never expect it to incre...
Look at the bottom component where GroupBox is Open Work Orders. What components is this? ...
Dear ladies and sirs. If two threads in a process generate a new GUID concurrently using .NET API (Guid.NewGuid()) is it possible that the two GUIDs will be identical? Thanks. UPDATE I want to get practical. I know that it is widely assumed that GUIDs are unique for all practical purposes. I am wondering if I can treat GUIDS produced ...
I pass a data access class (DAL) of my own making into a another class so it can use those data access methods to store data in my sqlite database. This is type-safe because each method that accesses the database creates it's own connection object so calls to the connection object always come from the same thread it was created on. I'd...
Hi, I have a web service which returns the following XML: <Validacion> <Es_Valido>NK7+22XrSgJout+ZeCq5IA==</Es_Valido> </Validacion> <Estatus> <Estatus>dqrQ7VtQmNFXmXmWlZTL7A==</Estatus> </Estatus> <Generales> <Nombre>V4wb2/tq9tEHW80tFkS3knO8i4yTpJzh7Jqi9MxpVVE=</Nombre> <Apellido>jXyRpjDQvsnzZz+wsq6b42am...
I am trying to detect a postback from Radiobutton list. I am trying to use following code: If Page.Request.Params.Get("__EVENTTARGET") = optDownload.UniqueID.ToString Then But Page.Request.Params.Get("__EVENTTARGET") returns "ctl00$ContentPlaceHolder1$pnlBarAccounts$i0$i2$i0$CHChecking$Acct1$optDownload$4" And optDownload.Uniqu...
I'm writing a custom DAL (VB.NET) for an ordering system project. I'd like to explain how it is coded now, and receive some alternate ideas to make coding against the DAL easier/more readable. The DAL is part of an n-tier (not n-layer) application, where each tier is in it's own assembly/DLL. The DAL consists of several classes that h...
Given: An asmx web service. A 3rd party dll that contains a useful enum. Question: How can I expose this enum through my web service without having to repeat myself and re-type the enum's members in my webservice's public class? ...
Hello, I'm trying to build my own custom control for a windows forms application in C#.Net. Currently I paint some rectangles and other graphic elements using the paint event. When I now resize the app form to fit the desktop size, all elements are repainted (which is exactly the behaviour I need) but the old one's are shown in the back...
I am on a project where I will be creating a Web service that will act as a "facade" to several stand alone systems (via APIs) and databases. The web service will be the sole method that a separate web application will use to communicate with these external resources. I know for a fact that the communication methodology of one of the AP...
Why would a stack trace show "line 0", but only for one frame in the stack trace? eg. ... at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader() at My.LibraryA.Some.Method():line 16 at My.LibraryB.Some.OtherMethod():line 0 at My.LibraryB.S...
I got this error using a new "ASP.NET MVC 2 Empty Web Application" project: CS0012: The type 'System.Web.Routing.RouteValueDictionary' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. ...
I'm curious about the performance characteristics of Parallel.ForEach. Given any valid construct inside a Parallel.ForEach loop, is it always preferable to use Parallel.ForEach over a foreach loop? I'm specifically wondering about the overhead of invoking the Parallel Tasks library on small sets or other edge cases where a foreach loop...
What is the .Net equivalent of a JSP page? ...
Hi, I would like to implement an current property in my class which returns the current active context of the class (much like httpcontext.current etc.), like so: using(classA x = new classA(..)) { classB.Dosomething(); } where the method dosomething() gets the current context of classA to perform some operation. How would i go ...
I have a class with an IList<T> property decorated with the [ImportMany(allowRecomposition = true)] attribute. There are some conditions in which the application might not find any available Exports of the requested type. Right now, it's throwing a CompositionException if no Exports of the requested type are found. I dislike application ...
I'm looking for a concise way to process every (unordered) pair of elements in a sequence in .NET. I know I can do it with nested for loops, but I was looking for something a little more readable. I was imagining something like a modified Any() extension method: IEnumerable<Transaction> transactions = ... if (transactions.AnyPair( (fir...
I have 3 tables. A primary EmploymentPlan table with PK GUID EmploymentPlanID and 2 FK's GUID PrevocServicesID & GUID JobDevelopmentServicesID. There are of course other fields, almost exclusively varchar(). Then the 2 secondary tables with the corresponding PK to the primary's FK's. I am trying to write the LINQ INSERT Method and am...