My C# book seems to leave out how to "link" to a class library I created. I made a project of type class library called "Data Objects" and a project of type windows application called "Economic Simulation" in the same solution. Now I want to make use of one of the classes from "Data Objects" ...more >>

I've got a WinForm MDI application. A little while ago (probably after I made some changes) my Load method for the form stopped being executed. I had some initialization done there and I suddenly noticed that this wasn't done anymore. I haven't been able to get it to work again and have had to...more >>

How to let user delete multi rows from the BindingSource while the SelectionMode Property set to RowHeaderSelect I have in my program datagridview bound it to sql table Throw Bindingsource To fill it: MyTableTableAdaptor.fill(MyDataset.Mytable); MyTableBindingSource.datasource = MyD...more >>

topic says it all? Is there any simple way? msdn says that the keyed collection is build from both a sortedlist and sorted dictionary. http://msdn2.microsoft.com/en-us/library/5z658b67.aspx (well, it doesn't say that specifically but it says it when talking about the sorted versions so I'm...more >>

Hi all What is the recommended way for using Linq within a 3 Tier project? Many thanks...more >>

Hi, I can imagine this question has been brought up before but I've spent all morning trying to find what I need on google without success. My application sits on Mysql or MS sql server engines and to date I've just been using auto-incremental int64 fields to generate my RecID field. I know t...more >>

Would anyone happen to know how to determine if a digital signature used MD5 or SHA1 as the digest algorithm? I have a requirement to verify the authenticity of VeriSigned exe file, and while validating the certificate chain is simple enough, I am having a hard time figuring out how to determi...more >>

How do I modify the value of a dictionary object? I have something like Dictionary<string, A> Q = ... Where A is a struct. I want to change some values in A but Q["somestr"].x = 1; doesn't work because it makes them read only. If I do something like A a = Q["somestr"]; a.x...more >>

Hi, I need to scan for bluetooth devices in a c# program. I dont want to use components that you can buy, but write it my self. But i cant find a good and working sample on the net. Can anyone help me out please ? I am working on a Vista Premium 64bit machine with Visual Studio 2005. Tha...more >>

For all those anti-Hungarian notation people out there, how would you name an employee first name label and textbox on an create/modify employee form, respectively (please)? Thanks, Ron ...more >>

I have to say I think that lambda functions are incredible. Although a little disconcerting at first I think they really unclutter code and are extremely powerful when you understand them. So here is my wish list for c#/cli features... 1. static extension methods - can't see a reason for...more >>

What is the C# equivalent?..,Thanks Public Enum InetConnState modem = &H1 lan = &H2 proxy = &H4 ras = &H10 offline = &H20 configured = &H40 End Enum ...more >>

Hello, I have to create an interface to allow another application to communicate with ours. I'm thinking of adding a COM interface into our exe to allow this but I'm not sure this is the best way to go. The other application needs to be able to launch ours, send it some data and call some ...more >>

I have 2 general c# questions I was hoping someone could answer... 1. Is it possible to return a struct by ref?... class A { private mystruct _ms = new mystruct(); public mystruct ms { get { return _ms; } } } since ms is a struct it returns a copy can ...more >>

I have been trying to parse a webpage in my own free time and I have come to yet another regex I can't quiet seem to get. I wanted to get the data inside the <table> tags, however the html and other daata inside it span multiple lines and nothing I use seems to work. My first attempt was: <tab...more >>

I have a schema that I use for a dataset. After getting the data into the dataset, I send it to an AST.Net Session. I need to read the data from the session, and want to do so like a Typed dataset (i.e. use the schema to increase readability). Does anyone know how I can do this?...more >>

Hi, I defined a interface like following: [ComVisible(true)] [InterfaceType(ComInterfaceType.InterfaceIsDual)] public interface IMyInterface { [DispId(30001)] string FirstProperty{ get; set; } [DispId(30002)] string SecondProperty { get; s...more >>

Hello, I have ArrayLists that are Channel1, Channel 2......Channel16 I want to access them with a (for int s=1;s<17;s++) loop, but I dont know how to do this: "Channel+s" Any help, Thanks Mike...more >>

Hi all! I was reading this article about data binding: http://msdn2.microsoft.com/en-us/magazine/cc163477.aspx I have a question: if I add a new property (ContactName, for example) to Customer class and add a TextBox (readonly), how can I bind it? What I want is: when I change the Custo...more >>

Hi All, I am doing a C# project for my final year in college and I was wondering about what chapters or sections I should have in the final report. I'm not on a pure B.S. I.T. course so the I.T. dept, don't provide any project managment classes I just have a project mentor who ain't that good. ...more >>

Hi all, How can I extract the value of a static strnig field that resides inside a dll? Thanks!...more >>

Hello Everyone, When I'm serializing my objects to XML, .NET seems to put the following namespace into certain elements: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" Does anyone know what its for? Is there a way to prevent .NET from...more >>

How to show a ABOUT Form???????? Hello Everyone: I use C# want to Create a Project. In my project. there are two forms. One is main form, and another is a about form. In the about form there are some information about my project. such as author's information, product support and so on. No...more >>

Hi all I have the folowing code: NorthwindDataContext nw1 = new NorthwindDataContext(); Category c1 = new Category(); c1.CategoryID = 1; c1.CategoryName = "New Category2"; nw1.SubmitChanges(); //Note that the cate...more >>

Hi, Does anyone know a workaround to get log4net to flush with every log? I know that l4n version 1.2.10 as the .flush method, but we're stuck on an older version. Currently, if our process is killed (or there's a power cut etc) our buffered log events are lost. Any help much appreciat...more >>

Hello, I have built an object which does some jobs on a particular server. There can have lots of this object running concurrently. I want to know what is the best way to optimize my application: - keep all those objects alive in memory without any timeout (the object is built one time per ...more >>

Hi, Can somebody let me know what is the best way to implement the business rules. I am quite new to C# & oops Class A { Function Busrules { base class rules must run} } Class B: A { Function Busrules { Having its own rules.} } When I create object of class B and call Busrules ...more >>

Hi im trying to create a double click event on a list view and i have it working perfectly ish, problem is the event will even fire if i double click on the scroll bars any ideas on how i stop this from happening? Here is what i have already done.. Added this to the designer of the form: ...more >>

I have a (3-tier) desktop application that I developed entirely in C++, comprising mostly of Win32 Dlss as well as some ATL COM objects. I want to "port the application to the internet", so that it can be run over the internet - I'm sure there is more than one way to do this. BUT - can anyo...more >>

Hi friends, Please help me on this. May i know difference between "winforms Vs Windows based application developement" using c#. thanks pavan...more >>