string s("0101"); I can't change it into s=1101 by s[0]='1'; because string.this[i] is read-only, no assignment is allowed :-( thank you for your help ...more >>

Hi all, In java, if a field is Integer type, we can assign it to null indicating that this field has not been set yet. How can we achieve that in C#? In C#, "int" is struct, we cannot set it to null. Thank you zlf ...more >>

Hi, how can I start new process with this kind of application ? C:\Direct.exe -a -b -c <C:\Script.src > C:\log.txt As you can see...I'll start appliaction ConnectDirect with 5 paramaters -a = node -b = username -c = password C:\Script.src = input file with s...more >>

How can I resize a list ? thanks ...more >>

for example, let's say I do something like, System.Diagnostics.Process.Start("notepad.exe","sample.txt"); if the user does a SaveAs (in notepad), how can i capture the path that the user selects? thanks... ...more >>

Why won't pages at msdn2 load? If they do finally load they throw object not found errors like crazy when using IE7. When the page finallty loads like literally 2-3 minutes after a request the page display is all mangled up. FF2 and Opra the same thing. <%= Clinton Gallagher NET...more >>

I was just wondering what naming convention most of you use for class variables. Underscore, "m_" prefix, camel case, capitalized, etc? Has one style emerged as the most popular? Thanks for any comments. -- Jonathan Wood SoftCircuits Programming http://www.softcircuits.com ...more >>

I want to emulate the Visual Studio Find Window (window on top most per application but not modal), which properties I have to set? ...more >>

If I have multiple subscribers to a delegate, what keeps track of them? Are they out there on the heap? When I declare a delegate: public delegate void MyDelegate (object myObject, MyObjectEventArgs myEvent); public MyDelegate SomethingHappened; and later I have two subscribers, what's ...more >>

I've created ODBC DSN for sql server. When i connect from win application works OK. When i make WebService (on same machine) that connects to that ODBC connection fails: Error: Server was unable to process request. --> ERROR [28000] [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed...more >>

Does anyone know where to find a good tutorial for working with Outlook from an IE ASP.NET Application? Are there any stability issues I should be concerned about? I'm trying to create an Outlook Appointment in both a private user's mailbox as well as in a Public Folder from a submission on ...more >>

Hi, I am new to this group so forgive me if this question sounds too newbie. :-) I am writing a C# program. One of its functionalities is to use a .Net dataset to create and populate a table in the SQLServer database. I suppose I can 1) iterate through the column names of the .Net datase...more >>

I have three Arraylists that hold strings corresponding to addresses of an e-mail list: ArrayList masterList ArrayList optInToMasterList ArrayList optOutFromMasterList I want to know the easiest way to add all of the +contents+ of one arraylist to another. masterList.CopyTo (optInToMa...more >>

Is this valid? byte ptr[]; ... if (null != ptr && ptr.Length > 0) { ... } (It would be in C) Or should I break it apart: if (null != ptr) { if (ptr.Length > 0) { ... } }...more >>

I have been working with objects long enough to have the basics down, but some things give me fits, and this is one of them. Brief description: I have an airplane object, and each airplane has an owner. Likewise I have a customer object and each customer has a list of airplanes. The basic ...more >>

Hello I've got a very simple C# app, that has a datagrid, a text box, and a button which when clicked opens a second form... Form2 frm2 = new Form2(); frm2.Show(); When I place a datagrid, onto form1 I point to a DB called Test DB and then my text box, I modify the databinding property...more >>

Hey All, There are many ways to skin a dog (I like cats so no cats) in .Net I have an XML string in the following format (without linefeeds): <remoteDir> <dir>MyDir</dir> <dir>MyDir2</dir> <file> <name>tst2_33520902.txt</name> <size>11277</size> <lastModTime m=\"10\...more >>

I have tons of thread running and closing and this output is driving me nuts. How do I get ri dof it?...more >>

Hey guys, I'm writing an application and I'm very frustrated right now. What I want to be able to do is have a form (regular Windows application), and have a series of drop-downs. What I'm doing right now, is running queries, and individually populating the boxes with the data. What...more >>

I'm making a CRUD screen for an Oracle database... but problem is that the primary key in that table is populated via an autonumber, which in Oracle is done just with triggers and sequences. Suffice to say that ADO.Net 1.1 is unaware that this column is, despite appearances, optional - which is...more >>

I know many people have managed to this but no one has posted the code on the internet. I used the codeproject program: http://www.codeproject.com/cs/media/cswavrec.asp to start with. The problem is that this program records and plays back right away. What I want to do is to record and save it ...more >>

I am a new user to googlegroups and wanted to ask if I am allowed to post jobs to this group. I currently work for Intuit and am recruiting Software Engineers / Architects for California, Boulder CO, and Waltham, MA. All with either Java, C++ or C# experience. I do not want to post if this i...more >>

Senerio: I have a custom user control which contains two control arrays. The user control has a group box in which the two control arrays are dynamically built. The two control arrays are RadioButtons and PictureBoxes. Task: What I need to accomplish with this custom user control is to rear...more >>

What is the best way using C# .NET 1.1 to have two (or more) applications perform a "synchronized" scrolling? These applications will all be C# .NET and will be on the same machine. The effect I need to create is if one program enables this "sync" feature, other instances of this application w...more >>

OS : Windows XP Professional Environment : MS Visual Studio 2005 Language : C# I am trying to call an unmanaged function that is in a dll written in C++. I did call the unmanaged fucntions already and i know almost everything. My problem is that i do not have those datatypes under C# that i ...more >>

Hi, all Did not find a .Net Communication forum to post. I am soing a client/server message system and using C#.net socket and Async mode. Pretty much as described in article http://www.developerfusion.co.uk/show/3997/3/ But I have a big issue with this approach and I am not what did...more >>

Hi guys! i've filled the DatSet object and was trying to get xml data from it. i used GetXml() method for that. it worked fine when all columns of the datatable has data. it generates perfectly fine xml but when if one column in datatable has no data(null), the method doesnt generates xml for...more >>

Hello, I need to make my already implemented .NET remoting system to become a web service or any system in order to be usefull over the internet. My current system uses .NET remoting and can be used in LAN and not the internet. What are the best ways to make it use internet and be usefull?...more >>

Hi all, when I use MethosInfo.Invoke method I obtain a TargetInvocationException where inner exception is +{"classBase.OpenConn cannot be invoked directly" } System.Exception. I'm using the following class public abstract class classBase{ public static int OpenConn(){ .... } } publi...more >>

hi, How to create a "DTS pacakage" in sqlserver 2000 through .net code if you know please send me the code ASAP. Thanks Arun arun@glinfosolutions.com ...more >>

How can you find a control's type in ASP .NET (using C#, in Page_Load function) if you only know the control's name?...more >>

I'm wondering if this is possible... Basically say I have a lot of .cs files but only 1 of them changes. Is there a way (with the csc.exe, or VS.NET 2005, or another C# Compiler), that I can compile everything before hand, keep the object files of the unchanged .cs files, and just compile the 1...more >>

Hi friends, I have a table structure like this in SQL sever 2000. i want a stored procedure to transfer the data from "tblSurvey" table to "tblRespondent" table. Table - tblSurvey ---------------------------------------------------- columnHeading col1 col2 col3 col4 col5 | ...more >>

hi i am using the following c# code in winhttp to open a http request Win32Api.WinHttpOpenRequest(Winconnection,"POST","/winn/01Primary/",null,"W= =ADINHTTP_NO_REFERER",WINHTTP_DEFAULT_ACCEPT_TYPES,0x00800000); and my function marshalling looks like [DllIm...more >>

Hi, I have a series of functions which do the following: ValidateData( args ); //args if of type ArrayList // Work out if the data is valid or not, and work out the type of args[1] - int, string, whatever? if((bool)args[0]) // valid data { WriteDataToDB( args[1] ); } However, it fail...more >>

Hi NG, how can i compare, if a file ends with jpg,jpeg,gif,tif is really such a file and not an unnamed one. Is ther a solution or an example who to do it in c#? Frank...more >>

When classes are not being inherited from. Is there an advantage to be gained by making them "sealed", and, if so, what is that advantage? Thank you, Adrian. ...more >>

Hi all, Assume we have two entity class. Class1: Name: House Property: ID:int Name:String Desktops:Desktop[] Class2: Name: Desktop And we have two corresponding Database Managers: HouseDBManager and DesktopManager If we want to insert a House instance into database, we ...more >>

Hi, Using the OleDb factory. Asked it to insert 4K records into a SQLAnywhere database table. Runs out of steam at record 244 and starts writing corrupted versions of 243 primary index column until at 248 it hits a variation it has already written and fails with a non-unique primary index erro...more >>

Hello, I have a DataGridView and I want to handle the CellContentDoubleClick event. No problem so far, but when I double click on a cell the CellContentDoubleClick event only fires if I double click over text, and not over any 'white space' in the cell. How do I get the event to fire wh...more >>

Hi, I have been using web usercontrols on 2003 for a very long time and i find them userful for modularity. Usually what i do is create a subfolder called 'UserControls' for example and placed the web usercontrols there ( i would change the namespace to *.UserControls.[control name] ). Howe...more >>

Hi all, I have some problem in my .net project. In my project two systems will communicate by installation the client server application in them. They can be 1. Server1--->server2 (run client server application on each system) 2. Client1---> server1 ---> server2 (run client...more >>