The db I am querying from is returning some null values. How do I safeguard against this and make sure the caller gets some data back. The code I have is: Using DataReader while (dr.Read()) { vo = new PlacementVO(); vo.PlacementID = dr.GetString(0); If I use dataset, I can do it like this. o...
How can I use Windsor in my .net 3.5 solution? Can I use the binaries built for .net 2.0? Do I need to compile the Castle Windsor source myself, targeting 3.5? ...
I've got a simple class that inherits from Collection and adds a couple of properties. I need to serialize this class to XML, but the XMLSerializer ignores my additional properties. I assume this is because of the special treatment that XMLSerializer gives ICollection and IEnumerable objects. What's the best way around this? Here's som...
I have the following code sample : public class Base { public virtual void MyMethod(int param) { Console.WriteLine("Base:MyMethod - Int {0}", param); } } public class Derived1 : Base { public override void MyMethod(int param) { Console.WriteLine("Derived1:MyMethod - Int {0}", param); } public...
I have a client and a server both written in .net 3.5 so I've got no interoperability issues. The server is fully accessible on port 443 (I'm hosting it so I can open other ports if needed) The client is however less accessible. It's often behind a corporate firewall, or behind a NAT, or uses an http/https proxy to connect to the inter...
I created a separate assembly to contain common extension methods, the extension methods uses classes from System.Web.dll (and others). When I then create a new project (Console Application) that references the Utilities.dll assembly that contains the extension methods, I do not need to add a reference to System.Web.dll to the new proje...
I am trying to implement a wpf user control that binds a text box to a list of doubles using a converter. How can i set the instance of user control to be the converter parameter? the code for the control is shown below Thanks <UserControl x:Class="BaySizeControl.BaySizeTextBox" xmlns="http://schemas.microsoft.com/winfx/2006/xam...
I'd like to hear some opinions as to what role, if any, parallel computing approaches, including the potential use of the parallel extensions (June CTP for example), have a in web applications. What scenarios does this approach fit and/or not fit for? My understanding of how exactly IIS and web browsers thread tasks is fairly limited...
We have a custom section in my app.config file related to our IoC container class. How can I get intellisense when editing the config file for this section, as well as getting rid of the compiler messages informing me of the missing schema. I found this question here: app.config configSections custom settings can not find schema informa...
I am working in C# and have the need to capture individual frames of video files. As quickly as possible (faster than real-time), I wish to seek to a specific frame number and capture every nth frame to a graphic file format such as BMP or JPEG. It is highly desired that the frame that is captured be predictable and repeatable, i.e. do...
Here's the deal. My WinApp is running, right? in let's say process 'A'.It creates a file and keeps the handle (keeps the file open for writing, this is a must). Then it starts other msbuild process, let's call it 'B'. This process is started with the System.Diagnostic.Process class. At some point, my WinApp (A) needs to delete the pre...
Following on from this question I now have code that can attach to a process using the Mdbg API. The problem is that I can't detach from the process if I need to. When I call mgProcess.Detach().WaitOne(); ( where mgProcess is a MDbgProcess created from an MDbgEngine object ) I get the following error message: Process not synchronized...
I've used MAPI to create emails with attachments from my application and it works very well on XP and Vista (without UAC). Of course, if you have UAC enabled, it just doesn't work (though it gives no errors, and doesn't prompt the user for permission to continue). I've done a bunch of reading and have found a lot of differing ideas: ...
I'm working on a static analysis tool for .NET assembly. In Java, there is a Descriptor which can be used to represent method or field in a string with specified grammar. for field: double d[][][]; will be [[[D It's useful especially when doing bytecode analysis. Coz it's easy to describe. If there a similar thing in .NET CLR? Or ...
I have a string "User name (sales)" and I want to extract the text between the brackets, how would I do this? I suspect substring but I can't work out how to read until the closing bracket, the length of text will vary. ...
Hi, Apparently I can't move files on different volumes using Directory.Move. I have read that I have to copy each file individually to the destination, then delete the source directory. Do I have any other option? ...
I just recently noticed Dictionary.TryGetValue(TKey key, out TValue value) and was curious as to which is the better approach to retrieving a value from the Dictionary. I've traditionally done: if (myDict.Contains(someKey)) someVal = myDict[someKey]; ... unless I know it has to be in there. Is it better to just do: if (my...
BCL Specifically, am I breaking the EULA by doing this? ...
I have created a simple wcf service which used the WCF Service Library template. Everything works fine when using the default soap bindings, however when i attempt to modify the service to add a REST binding it fails with the following error: "Configuration binding extension 'system.serviceModel/bindings/webHttpBinding' could not be fo...
How can I make a Property "ReadOnly" outside the Assembly (DLL) for people using the DLL but still be able to populate that property from within the assembly for them to read? For example, if I have a Transaction object that needs to populate a property in a Document object (which is a child class of the Transaction class) when somethin...