Newbie : always build

I have a solution with 2 projects (a wpf application and a dll). I would like VS to build automatically if needed each project when starting debugging (F5). I didn't find this option anywhere. Any idea ? Christian

What TypeCode to return when implementing IConvertible GetTypeCode()

When i implement IConvertible GetTypeCode() which TypeCode would i return? TypeCode.Object if it is implemented in a class? What in case if it is implemented in a struct? In general i don't know what IConvertible GetTypeCode() is used for. Can someone explain this to me? The examples i found in the msdn and the web are not helpful. Lets consider the unlikely case where i have an object that can best be represented as a boolean value. Would i then return TypeCode.Boolean to indicate that a conversion to a boolean value among the type codes represents the object best? than

solutions manual to A Quantum Approach to Condensed Matter Physics (Philip L. Taylor & Olle Heinonen)

I have the comprehensive instructor's solutions manuals in an electronic format for the following textbooks. They include full solutions to all the problems in the text, but please DO NOT POST HERE, instead send me email including title and edition of the solutions manual u need. NOTE: This service is NOT free My email: markrainsun( at )gmail( dot )com Here are some from my list ... solutions manual to A First Course in Differential Equations (7th ed.) Zill & Diferential Equations (5th ed.)Zill & Cullen solutions manual to A Course in Game Theory by Osborne, Rubinstein solut

Disk check

Is there any way to do a disk check on just one file? For example, to detect if a particular file is affected by bad sectors without scanning the entire file system?

InvokeRequired? (multithreading)

It looks to me like InvokeRequired() is returning an unexpected result. I have a multi-threaded app, and know it's a good idea to put all functionality related to a Windows Forms control on the same thread. I have a class which inherits from Form. When I construct an object of this class, I print out the value for Thread.CurrentThread.ManagedThreadId. In all of the functions in my class, I have the same structure: public delegate void functionNameCallback(); public void functionName() { if (this.InvokeRequired) { functionNameCallback e = new functionNameCallbac

Linq join over 2 datacontexts

Hi, I require two datacontexts to manage users, one to manage details, and the other for authentication. I am attempting to build a list of User business objects, but I keep getting the "The query contains references to items defined on a different data context" exception. I have fiddled with GetUserDetails() to return IQueryable or IEnumerable, but neither solution works. Anyone know how I can get the following to work? public static List<BO.User> GetUsers(this Table<User> source, int groupID) { ACEDataContext dc = (ACEDataContext)source.Context;

Why is not my event handler called when doing serialization resp deserialization

Hi! Below is a complete rather easy program to understand that using a CustomFormatter that is defined here. What I don't understand in this program is why my four event hander are not called. According to the documentation they should be called. This one should be called before serialization. [OnSerializing] public void OnSerializingthisthod(StreamingContext context) { var2 = "This value went into the object just before serialization."; } and this should be called after serialization [OnSerialized] public void OnSerializedthisthod(StreamingContext context) { va

changing c sharp background

hi; i want to set a picture to the console application if u know how plz answer me i know how to chang the background color but i dont know how to set a picture to it thanks for all answer ... :)

Granting admin priveleges to a process started from a C# app

Hello, I wrote a C# GUI application that I use to install, uninstall, start, and stop arbitrary Windows services. Although I would like to have handled all the gorey details in the C# code itself, I only found one example of how to do this on the Internet and I could never get it to work properly. As an alternative I decided to merely use the C# code as a GUI wrapper around running the Microsoft "installutil.exe" executable as a process. As klugey as it may seem it worked perfectly in all respects, but that was under Windows XP. When I now try use this setup on Windows 7 I

Save setting to registry using C#

In VB.Net I do this to save my app settings: SaveSetting(Application.ProductName, "TimeInterval", "TimeIntKeyName", lblTimeInterval.Text) SaveSetting(Application.ProductName, "MyAppCurDir", "myAppKeyName", strCurDir) In my C# migration efforts I have encountered yet another struggle -- with the Registry. After googling/binging/checking BOL, I have not seen anything that resemebles my sample above in C#. The samples I did find I am not sure how to implement them as none of these samples were straight forward like the VB.Net sample above. Instead of wrecking the registry by ex

Virtual methods and late binding

hi 1) One definition of binding is that it is the act of replacing function names with memory addresses. a) Thus I assume early binding means function calls are replaced with memory addresses during compilation process, while with late binding this replacement happens during runtime? b) Why are virtual methods also considered early bound (thus the target method is found at compile time, and code is created that will call this method)? As far as I know, with virtual methods the call to actual method is resolved only during runtime and not compile time?! 2) Assume: =95 B

CTE Infinite Recursion

I have a situation where you can have an infinite recusion. There is an issue where editing a page could cause infinite recursion. This would happen if a distribution folder were put into itself. It would also happen if you put folder "A" into folder "B" where folder "B" is in any of the folders contained in any of the folders found in folder "A". A little convoluted sentence but that is the problem. A is in B and B is in C If you put A into C then C will eventually point back to itself and you the recursion will continue on YOu have to have a way to say that you hav

regular expression(Regex)

Hi! I just wonder when is it better to use regular(Regex) expression then to use substring ? //Tony

Sqlcommand causing memory leak

Hi, I'm struggling to find why this piece of code results in memory leak in sqlservr.exe. Could someone please help me in explaining what I'm doing wrong? using (SqlConnection con = new SqlConnection()) { con.ConnectionString = "integrated security=SSPI;data source=127.0.0.1\\ SQLEXPRESS;persist security info=False;initial catalog=XLS"; con.Open(); using (SqlCommand myCommand = new SqlCommand("UPDATE dbo.MonitorReaders SET latestRead='" + tinfo.datetime.ToString() + "' WHERE readerIp='" + ip + "'", con)) { myCommand.ExecuteNonQuery(); } con.Close(); }

Bitmap.Save crash when ivoked for the second time ?

Hi all, In a class I have to methods: public void Download(string imageUrl) { using (WebClient client = new WebClient()) { using (Stream stream = client.OpenRead(imageUrl)) { this.FoundBitmap = new Bitmap(stream); stream.Flush(); } } } and... public void SaveImage(string filename, ImageFormat format) { if (FoundBitmap != null) { try { FoundBitmap

Error Message: debug target...is missing

I copied the following code from a book about C# programming: public class Portfolio { Stock[] stocks; public Portfolio (int numberOfStocks) { stocks = new Stock [numberOfStocks]; } public int NumberOfStocks { get { return stocks.Length; } } public Stock this [int index] // indexer { get { return stocks [index]; } set { stocks [index] = value; } } } class Test { static void Main( ) { Portfolio portfolio = new Portfolio(3); portfolio [0] = new Stock ("MSFT", 20, 1000); portfolio [1] = new Stock ("GOOG", 300, 100);

OnClick Event name for Web page

I tried to send this earlier but it doesn't seem to have been sent. I am trying to figure out the OnXXXX convention for an event. It doesn't seem to be needed in an Windows Form page. But it seems to be needed on a web page. If I set up a User Control as so: ****************************************************** using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebApplication2 { public delegate void OwnerChangedEventHandler(string newOwner); public partial cla

Connection timeout set to 5 sec but takes longer to timeout

Hi all, My Connection string timeout was set to 5 sec but commands takes much longer to timeout when there is no connection to the destination ip. Is the timeout value only helps when the ip is reachable but the sql server is not, or it should work also if the ip address is unreachable. If it should work also when the ip is unreachable, why it does not work in my case? Thanks a million, Avi public static int ExecCommand(string command, string ip) { if (String.IsNullOrEmpty(ip)) throw new ManualRedundancyException("IP address for database connection cannot b

Queue Data to another thread

Hi, I have two threads thread1 and thread2. Thread1 will give queue some data so that Thread2 will process the queued data. What mechanisms are available in c# for doing this? Thanks!

OnClick Event name for Web page

I tried to send this earlier but it doesn't seem to have been sent. I am trying to figure out the OnXXXX convention for an event. It doesn't seem to be needed in an Windows Form page. But it seems to be needed on a web page. If I set up a User Control as so: ****************************************************** using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebApplication2 { public delegate void OwnerChangedEventHandler(string newOwner); public partial cla

CTE unable to bind CTE table

I have the following: WITH DistributionListCTE AS ( SELECT ParentID = NULL,ChildID = 1390,MemberTypeID = 4,Level = 0 UNION ALL SELECT DistributionListID,MemberID,zdd.MemberTypeID,Level + 1 FROM DistributionList_Detail zdd JOIN DistributionListCTE dcte on dcte.ChildID = zdd.DistributionListID WHERE zdd.MemberTypeID in (2,4) ) SELECT convert(varchar,u.LastName) as Lastname FROM DISTRIBUTIONLIST_DETAIL d INNER JOIN vwSecurity_User u ON u.UserID = d.MemberID WHERE d.DistributionListID in (Select ChildID From DistributionListCTE) AND (DistributionListCTE.MemberTypeID = 1)

unhelpful deserialization error - cannot load type, but why?

This code - private static void Test() { using (XmlReader reader = XmlReader.Create("ExecutionPlan.xml", new XmlReaderSettings())) { XmlSerializer serializer = new XmlSerializer(typeof(TEST.ShowPlanXML)); ShowPlanXML plan = (TEST.ShowPlanXML)serializer.Deserialize(reader); Console.WriteLine(plan.Version); } } throws this exception - "Could not load type 'TEST.ShowPlanXML' from assembly 'TEST, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.":"TEST.ShowPlanXML ShowPlanXML is a 8000+ line class generated by xsd.exe from http:

A better way of constructing a LINQ query

Hi folks, I�ve got a LINQ query that filters out items in a database that begin with a number. It looks like this: char[] numbers = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' }; var result = (from i in Items where numbers.Contains(i.Name[0]) orderby i.Name select i).ToList(); Now this works, but I�m sure there must be a more efficient way of doing this. Can anyone suggest a way that I can do it in a more efficient manner? Cheers, -- Dylan Parry

IXmlSerializable

Hi! I'm reading a book and and it says the following "The XmlSerializer class implements the IXmlSerializable interface." If I look at the class XmlSerializer I can't see that this class is implemenring the IXmlSerializer interface so the book must be wrong. Or it or something that I have missed here. ? //Tony

MessageSecurityException problem in WCF

Hi, I am writing WCF based application on vs2k8. I wrote Service with name "IService" and expose given operation, [OperationContract] public Result ActionPerform(string function_name, ABase obj) { // FOR TESTING IResult res = null; res = new IResult(ResultStatus.EXCEPTION, new TestException(RelectionLibExceptionCode.CLASS_EXCEPTION, new NotImplementedException())); return res; } 1. ABase is abstract class for all client classes. 2. "function_name" will contain function name that will call by reflection for given in

RSS live feed

Hi, I want to make an update check for some software and use RSS for that (because it=92s on sourceforge.net and they have an RSS stream for the directories). Off course Google was my friend while looking for some code to read RSS, but there=92s one thing I cannot find (not even on codeproject.com or within source code of projects on sourceforge.net). How can I make the RSS reader follow the RSS feed live? Is there an event that I can use or something like that? Or do I have to use a timer every second for instance? Or is there some code available to just listen to the RSS stream

Delegate for event in class

I was looking at a tutorial for events and can't figure out his worked with the delegate inside the object. using System; namespace CustomEvents { public class Car { public delegate void OwnerChangedEventHandler(string newOwner); public event OwnerChangedEventHandler OwnerChanged; private string make; private string model; private int year; private string owner; public string CarMake { get { return this.make; } set { this.make = value; } } public string CarModel { get { return this.model; }

building process

Hi, I have few projects in one solution. I want to set building process to build all binaries in one folder(dlls and exe files) not pdb files. How to do this?

Run my App from Function Key

Is there a way to program a windows function like F1 so that when I press it, windows launches my custom application?

when do I need xml schema to handle xml serialization

Hi! My question is simple if I'm going to serialize an object do I also need to have an xml schema that define the structure of the xml ? If yes what is the normal way to create an xml schema ? //Tony

plz help me .......[plz].....[i need a help [ :( ] ]

hi , every body; i want to write an easy program; if u have time plz write that code for me i want to write a program that it gets a number from user then save it in filestream i mean to see tahat number ever time that i want at that file i need a help

when to use soap and when to use xml

Hi! I'm reading in a book and it says the following. "Use XML serialization when you need to exchange an object with an application that might not be based on the .NET Framework, and you do not need to serialize any private members." In the book it also says the following. "Use SoapFormatter when other application might read your seriazed data and when sending data across a network SoapFormatter also work reliably in situations where you could choose BinaryFormatter." So according to these two text sections I can use whichever of SoapFormatter and XML serializing whan I wa

LINQ: Select records but enforce one field to be unique

When selecting records by forcing one field to be unique, is it necessary to use the .Distinct(...) function with an external comparator? EX: Say you had a list of purchase records...multifields. You want to get -just- a list of people who had bought items. The 'purchaser' field must be unique, so you don't just get back the entire list, but you want to retrieve all fields in the record, so you can't just use ..Distinct(). (with no args) I've seen examples that require coding an external class, creating an instance, then passing that object to .Distinct(...) but this seems undu

Override

Hello, I have the following method: public class DefaultControllerFactory : IControllerFactory { protected internal virtual IController GetControllerInstance(Type controllerType) { } } How can I override it? I tried: public class StructureMapControllerFactory : DefaultControllerFactory { protected override IController GetControllerInstance(Type controllerType) { } } But I get the error: no suitable method found to override Thanks, Miguel

about serialization

Hi! I know when to use BinaryFormatter and SoapFormatter but I just wonder of curiosity is it possible to use a SoapFormatter when you really should have used a BinaryFormatter and the other way around meaning that can you use a BinaryFormatter when you really should have used a SoapFormatter ? Use BinaryFormatter when the app is a based on .NET framework If not use SoapFormatter. If sending something on the network use SoapFormatter. //Tony

C# working with reporting services

I have the following questions about creating sql server 2008 reports with C#.net 2008 I am creating a report that will contain the following: a. page header with the title of the report, b. page footers that contain the page numbers, and c. table of contents to tie about 27 subreports together, d. several of the tables in the subreport will appear on more than one page. Thus, I would like to know how to tie all of this together. I am planning on doing the following: 1. Put the title of the report in a textbox control, 2. Somehow have logic in the tables to know to

New here...

Hi, This is my forth day doing c#, interesting language. I'm a crusty c++ programmer but we wanted to start using the dundas charts, so... I seem to be making things work. This is what I have so far: <http://reserveanalyst.com/images/ChartCtrl.jpg> That is my app data showing from the same old export we do for excel. That way I don't have to write a new export and the legacy charts will still work. Excel charts were always a pain for us so this will be a nice move. Best, Dan.

version compatibility when serializing and deserializing

Hi! Here is some text. "You might have version compatibility issues if you ever attemp to deserialize an object that has been serialized by an earlier version of your application, Specilically if you add a member to a custom class and attempt to deserialize an object that lacks that member, the runtime will throw an exeption. In other words if you add member to a class in version 3.1 of your application it vill not be able to deserialize an object created bt version 3.0 of your application." I seems to me that the text saying "Specilically if you add a member to a custom c

sort array of strings using for loop

Hi everybody. I have a problem with sorting an array of names. I have a txt file with a names e.g. "Jack, John, Bob, Adam, Paul". All i have to do is write the names into the individual cells of new array and than sort it by an alphabet using for loop and write it out into a new txt file. I just after figuring out how to separete a names and my source code looks like: string delimiter = ","; string path = @"c:\notsorted.txt"; string r = sr.ReadLine(); string[] names = r.Split(delimiter.ToCharArray()); but i have no idea how to sort it with for loop. If there is anyone who

Static Class vs Argument

Hello, I am working with IoC to inject a repository on a class. This is a simple example as I am starting with IoC so I am trying to have a simple example with XML files working. On HomeController I have the following: public class HomeController : Controller { private readonly IUserRepository _userRepository; public HomeController(IUserRepository userRepository) { this._userRepository = userRepository; } // HomeController public ActionResult Index() { ViewData["Email"] = _userRepository.FindByUsername("admin").Email; return View("In

error :(

Hi; I write a program that it has error do u know how I could solve it (& I don=92t want public lastname) using System; namespace ConsoleApplication49 { class Program { static void Main(string[] args) { info.Employee(); } class info { private string[] lastname =3D new string[100]; static public void Employee() { for (int i =3D 0; i <3; i++) { Console.WriteLine("enter the last name :"); lastname[i] =3D Con

IoC. A few questions ...

Hello, I am starting with IoC and I am creating modules as follows: private class DomainModule : NinjectModule { public override void Load() { Bind<IProductRepository>().To<ProductRepository>(); } } private class ApplicationModule : NinjectModule { public override void Load() { Bind<IEmailService>().To<EmailService>(); } } So when using IoC I suppose for all services and repositories I should have an interface, right? And should the interface be in the same namespace then the class itself? Should I separate maybe in two folders? I have no i

help me

Hi every body; I want to learn making play with c sharp but I don=92t know how ; Plz recommend me som web page Thanks Bye =85

BinaryFormatter

Hi! Is it any advantage to use one over the other between these two. IFormatter serializer = new BinaryFormatter(); or BinaryFormatter serializer = new BinaryFormatter(); If I have this FileStream saveFile = new FileStream ("MyFile.bin", FileMode.Create, FileAccess.Write); serializer.serialize(saveFile, myObjectToSerialize); saveFile.Close(); //Tony

Tool For Handle Leak

Hi, My c# application has handle leak. What tools are avilable for finding leaks with stack trace ? Thanks!

Visual Studio 2010 RC

I've not used any RC version before. Some insight on this would be appreciated: 1. How long does a RC version carry out working? 2. What happens (are the options) when it stops? 3. Can it be uninstalled without adverse effects on earlier version of VS? Thanks.

Print PDF files with margins cut

If I print a pdf file with the source listed below, print out with the trimmed edges. In fact I get a technical drawing with the missing information. The same results if I print from explorer context menu. If I open the pdf file with Acrobat and do printing, the printed sheet is correct. How do I properly print the entire PDF file through code? Thanks Regards

how to change the registry settings of another user

Hi, As part of a semi automatic installation and setup of a host I would like to create one administrator account and one ore more (non administrator) user accounts (without passwords) Then I would like to start a script as administrator and change some global and some user specific registry entries. I have problems to modify the settings of another user whle being administrator. The registry entries don't exist). It seems I had to load some 'hive' to be able to access somebody else's registry I did my first tests not with C#, but with python and_winreg32, but could

Interface in Property

Hello, I have a class Parent. What is the difference if a property is an interface or a class? For example: public class Parent { public PA Pa { get; set; } public IPA Ipa { get; set; } } Where PA is: public class PA { public String Name { get; set; } } And IPA is: public interface IPA { String Name { get; set; } } Thank You, Miguel

Maybe an interface?

Hello, I have an attribute on a project as follows: public class GoogleVerifyAttribute : FilterAttribute, IActionFilter { public void OnActionExecuting(ActionExecutingContext context) { ViewResult view = (ViewResult)context.Result; if (view == null) return; ViewModel model = (ViewModel)view.ViewData.Model; if (model == null) return; if (model.Verify == null) model.Verify = new GoogleVerify(); model.Verify.Key = Setup.Settings.GoogleVerifyKey; } // OnActionExecuting } // GoogleVerifyAttribute ViewModel is a class tha