How do you find if the returned XML string does not contain any record/elements? The XML string i receive just has the structure if there are not records, How do I check for this? <?xml version="1.0" encoding="UTF-8"?> <array-list xsi:type="java:java.util.ArrayList" xmlns:xsi="http://ww...more >>

Hello. How can I send E-Mail message from my application in C#? ...more >>

I was wondering why MS defined "marker" interfaces (empty interfaces) in the ..NET framework(interfaces such as such as INamingContainer, IRequiresSessionState etc...). Why not use attributes? Eran Kampf http://www.ekampf.com ...more >>

Anyone familiar with Delphi know of a similar type to the TStringList in C#? Thanks, Nathan...more >>

Hi, I receive an XML string like <record> <value>...</value> </record> <record> <value>...</value> </record>....... etc., Now i want to find out how may records are there in that XML string, I do not want to write anything to the drive is there any way to process that string in...more >>

Hola a todos: Estoy intentando generar un fichero xml Unicode-16 simple, con algunos elemento con atributo. El caso es que cuando el atributo es un string corto me funciona, pero con strings muy largos me da este mensaje. Pienso que el motivo puede ser algun caracter que termina alguna etiqueta....more >>

I'm coming from C++ world, where I've been using #define SALSA 1 and #define SALSA_DANCE "Salsa Dance" in a header file to define my constants..., all uppercase and underscores. Does the same naming convention apply in c#, or does .NET define its own style? e.g. public class Constants ...more >>

Please help, I've scoured the web but cannot find an answer to this! I want to use WebRequest to get the contents of a web page. The trouble is, the page require you to go to a login page (using ASP - not ASP.NET), and enter a username and password to get in. How do I use WebRequest in thi...more >>

Hello everyone, I've a Tree Class which returns Directory Tree Structure, if physical path is specified. On every node selection i'm calling a javascript function to load the file in a frame. For e.g. node.NavigateURL="javascript:NodeFunction(' " + path + " ',' " + FileName + " ') NodeFun...more >>

I've written a large C# app to instantiate Word 2003. Several tables are created as well as a Merge Table containing data that is merged in throughout the document. I'd like to toss in some data into the document table via: oWordDoc.Tables[1].Cell(5,4).Range.Text = wrdSelection.Range.Co...more >>

Hi, I'm writing a c# application which queries the WMI class = "Win32_PerfFormattedData_PerfProc_Process" for IDProcess, VirtualBytes = and WorkingSet for each running process. When I try to enumerate the = ManagementObjects found in the reutrned collection, it is giving me a = "Provi...more >>

In my application everytime I get an error instead of taking me to the error it displays the error and takes me to static void Main() which is the entry point for my application. For example if I am debugging my code and I get to a line that errors it doesn't just stay there it, hides the code...more >>

Hello all, I have written an application for monitring various network issues. I am trying to implement a remote shutdown/reboot however everytime i try to run this particualr program I get an exception with the message Privilege not held. I can succesfully run it as a Script but it always...more >>

Bitmap.Save() does crash very often on Saving jpg's. It seems to dislike pictures on a random basis, but when it dislikes a picture there is no way around it. Take for example the picture http://home.foni.net/~sjost/fremd/IMGP5753-2.JPG I load the picture, and save it rotated by 270 degre...more >>

Hi I have an exe file on my machine. I need to launch this exe from the windows service (written in c#) running on my machine. The service knows about the path where the exe resides. How do I launch the exe from the service. Any help will be highly appreciated. Thanks Anant ...more >>

Hi, how can i start / run my programm as "Tray Icon" in C# ? Thx, cya Thommy ...more >>

Hi, I have a field "Month" in my SQL server table. The type of this field is "tinyint". Now what I am doing in the code is using DataRow to read this field in a 'int' variable. int month = (int) dataRow["Month"]; But the above line throws exception that the cast is invalid. After...more >>

Hello all, I would like to be able to use something like MSN messenger to notify people that an event occured. an example of this would be a sales guy is out on the road and places an order for one of his customers. our server would send out a message via email and something like MSN messe...more >>

Is it possible to access html controls from Webform controls? thanks, ...more >>

I know this isn't C# specific, but I find this group to be the most helpful I have installed a couple of assemblies into the GAC, via drag-and-drop into the C:\WINNT\assembly "folder" (on Win2K). According to MSDN, this is perfectly acceptable (http://msdn.microsoft.com/library/default.asp?ur...more >>

Hello, I have a Windows form with a datagrid control, and would like one column to appear as a hyperlink, so when clicking on it, it will open IE and go to the web. Unfortunately, I cannot find an example. My code is below. Essentially what I am trying to do is get a list of patches installe...more >>

Hello I was wondering what's needed to do to do this in VS.NET? http://www.123aspx.com/redir.aspx?res=29946 so i dont have to use that cmd-prompt :) can i just change some compilesettings or something? TIA /Lasse ...more >>

I want to send some files to the recycle bin after I'm done using them. I'd rather not delete them or make my own aging scheme. How do I go about this? I haven't been able to find a C# example out there. Thanks. -- to reply, remove .s.p.a.m. from email...more >>

I am writing a program that has a portion which downloads files into a selected directory. It first checks to see if the file exists if the file exists it opens another form with buttons related to overwriting, renaming etc. What is the proper way in windows forms programming to open a new for...more >>

Hey all, When should or should you not inherit from the IDisposable interface for your custom classes? Say I have a custom class SomeClass that does... some stuff. If I create a new instance of SomeClass and it goes out of scope, the GC will always clean that up, right? So, why should I ...more >>

I'm trying to serialize a class using the binary formatter without serializing the 'static pastFirstCall as Boolean' variable. Normally private (module-scope) variables are serialized unless the <NonSerialized> attribute is used. Public Function NextMessageNo() As Integer <NonSeri...more >>

Hi, I have a simple string question in C#: a VB.NET statement like this: sb.Append(Chr(34) & myReader.GetValue(i).ToString & Chr(34) & vbCrLf) So, for Chr(34) and vbCrLf, what I need to use in C#? Thanks all. J....more >>

Hello, I am converting an app from JavaScript to ASP.NET I have the following JavaScript 'associative array'. Is there a concise way to create an analogous structure in .NET Framework using c# or VB.NET? I don't want to use JScript. consFin = {2:'m',4:'n',6:'ng',8:'r',10:'l',12:'kh',14:'...more >>

Hi, Why must derived classes access protected base members through an instance of a derived class? The following code would work in C++, why doesn't it in C#? public class A { protected int x; } public class B: A { static void F(A a) { a.x = 1; // Generates compile e...more >>

I'm reading from a file that sometime is saved as ANSI and sometimes is saved as UTF-8 Because it has some danish characters like "æøå" in it, I have to read it with "windows-1252" encoding if is saved as ANSI: Encoding ediEncoding = Encoding.GetEncoding( "windows-1252" ); StreamReader stream...more >>

Hi, I have code similar to this.. Dim xlApp As Object xlApp = CreateObject("Excel.Application", "\\MyServer") The call is from a asp.net (Intranet) application. \\Myserver is a network computer in the same domain as web server. The only way I can get this call worked is when I add the us...more >>

Hi there... I am trying to display both parent and child details in my datagrid at the same time but i cannot seem to do it. It's either one or the other, if anyone has any suggestions on how i can do this please let me know. My current code to establish the relationship and display the data...more >>

Is it possible to upload files to a folder outside of the web server? I realize that the IUSR account needs access to the area but since the IUSR is not a domain user how can you give access if you want the file uploaded to an area other than the web server? Is it that you can't? thanks yo...more >>

Newbie: I am writing code to read an xml file. I want two values from the document so I want to save them as I am reading through the elements. I want to reference them (using Console.WriteLine) after I complete the loop. When I compile I get the "use of unassigned local variable". What...more >>

Hello, I am having a web site, which needs to perform some Tables Updations after a fixed interval of time 10 mins.... Is their any way out to do this... Thanx in advance Niraj AR ...more >>

Hi, I'm running in a strange "problem" .... I'm trying to hide a page in tabcontrol with this command " tabMyPage.Hide();" but it still shows up. Am I missing something ?? ...more >>

Hello: I created a basic windows service that polls a db and sends emails to our subscribers. In the onstart method I create a new thread and send it on its way to do work. It should never end unless told to do so by the onexit event I implemented in the worker object. However there are t...more >>

I'm trying to make a combo box custom control (Windows Forms .NET 1.1 c#) that can behave like a label programatically at run time. This is actually a strong feature request by our customers. I really don't want to have to make a UserControl that has both a label and ComboBox in it. I would rath...more >>

Hi, I wonder can I dynamically create a type without knowing the exact assembly in which he reside but with knowing that his assembly is referenced in the project? surely I can list(at rn time) all referenced dll and check for the type? Is there a better way? Thanks. ...more >>

After installing VisualC# Standard, DX9 will not install the debugger. Any other users of C# Standard have similar problems? PS: I ran the complete VStudio .net trial for 60 days and DX9 installed fine. Larry P. ...more >>

Could individuals please reply with links to upcoming .NET conferences? For example, I believe I remember reading that there was going to be a .NET/SQL Server conference in Las Vegas in November? Thanks in advance. Mark ...more >>

Hi, I know of course how to deserialize an object,but i wonder if i can deserialize an object from two different XML 1.Do I need to create a formatter for each type of XML? 2.Should I only apply XSL to a different XML before deserialize? 3.Other ways? More: I have a Person class and...more >>

Is there a way to get the type (through reflection) that applied the attribute from within the attribute? For example: using System; using System.Reflection; using DlgProc.MyAttributeNamespace; namespace DlgProc.MyAttributeNamespace { [AttributeUsage(AttributeTargets.Class, AllowMul...more >>

Which is better: SomeValue is DBNull or SomeValue == DBNull.Value Thanks, Michael Culley ...more >>

Hi, I want to send to SQL server a query I want to get randomly generated 100 rows where they are no generated before. I made my query like below: mySqlCommand.CommandText = "SELECT name,rand(name) FROM people LIMIT 100 WHERE generated_before IS NULL"; Gives system error??? Thank you,...more >>

Hi, I'm writing a small client-server application using sockets Server code IPAddress address = Dns.Resolve("localhost").AddressList[0]; TcpListener tcpl = new TcpListener(address, PORT); Socket s = tcpl.AcceptSocket(); ... Client code : TcpClient tcpc = new TcpClient("local...more >>

Hi, I've included the Active X control in my windows app for viewing a web page via Internet Explorer. I want to include the browser so that it maximises accordingly when I change the size of the application window. Does anyone have any ideas? I.e. I want to have a internet browser 100...more >>

noob alert... I have an application using c# that uses MDI. On some of the child windows, I need to open a dialog that will communicate back with the MDI child. I did not see any clear way to accomplich that in the documentation. Can anyone point me toward an example or better documentation...more >>

I know you can use socket to talk to other application . But i have an old ;) MFC app that only speaks "wm_copydata". I want this appliccation to interact with an other one written with C#. Well "web services" are out of question because i do not know if my old MFC centrique app need to be...more >>

Hi I've a windows application in C#.At a particular point , i have four clones of the same form running and i want that application should not end till all the forms are closed. The problem is the first form that runs when its closed closes all other forms and the application. plz help me i...more >>

Hi folks, I am writing a small network application that uses TCP sockets. My application is the accepts connections via the AcceptConnection function of a server socket and creates a client socket from it. My question is, if someone disconnects from my server, how can I detect this? Checkin...more >>

This is a trivial problem, but I'm just looking for a nice way to do it, that's all :) I've got an enumeration which enumerates a number of different text encodings, for example: public enum TextEncoding { ASCII, Unicode, UTF8, } I've been trying to find a nice way of getting ...more >>

Hi Does anyone know how to specify a compiler option (/r) from inside the ..NET IDE? I'm calling a COM object, I've alreay registered the type library and now have to compile with /r:TypeLibname.dll. Any ideas on how to do this from within Visual Studio? (please no command line suggestions)...more >>

Hi, I created some WebPermissions : Regex myRegex = new Regex(@"http://www.linux.org/"); WebPermission myWebPermission = new WebPermission(NetworkAccess.Connect,myRegex); string URL2 = "http://www.microsoft.com/"; myWebPermission.AddPermission(NetworkAccess.Connect,URL2); But what do...more >>

how do I get the result from a sp who throw a SCOPE_IDENTITY in result? exampel Public void SpInsert(Team team) { sqlconn cn...... sqlCommand sqlC.... sqlC.parameters.... cn.open sqlC.?? sp create procedure InsertClub { @TeamName varchar(30) } as insert into Club([TeamName])Val...more >>

Hi, how do I connect to an ftp-server using System.Net classes ? I know how it works for http : string myURL = "http://localhost/MySite/mypage.html"; WebRequest wReq = WebRequest.Create(myURL); but if I try string myURL = "ftp://ftp.clubic.com/" WebRequest wReq = WebRequest.C...more >>

Hi, I have a lable control placed on an .ascx( let say that its ID = "myLable", now I want to pass a text message to that "myLable" lable from myclass.cs. I want to display this lable message in aspx by registering the ascx. How to do the same, pls suggest. pls help with an example. tha...more >>

Hi to all, actually im a newbie in the OOP and i would like to know if this way of using clases its a best way (logical, and a good way) Lets imagine that i have a data base with departments (depid, depname) if i make the class public class department { private int id; p...more >>

I have string that is 2.5 million bytes long. I tried using Regular Expressions to look for patterns and replace the pattern found with a pre-defined text. This works great on some computers but on some others (win 2K server 1gig of ram) it times out! So I am looking for an alternative me...more >>

i want to decode 2 byte and 1 byte char data......because japanese characters take up 2 bytes ordinary characters 1 byte.....can u convert one byte array so that the 2 byte and 1 byte information is displayed correctly......if not how will i do it byte by byte....... *** Sent via Developer...more >>

Hi. I use in my windows c# project External Dlls(Assembly.LoadFrom(dllName);...). All work fine. I add to one of my forms using of OpenFileDialog. First time I call this form It works. Next times I get Error: "File or assembly name Extended.dll, or one of its dependencies, was not found." in ...more >>

Why does this cause the error 'cannot implicitly convert type 'double' to 'float'? Can you not multiply doubles by floats without converting them all to the same datatype? fltPCRateStd = fltPCRateStd * 1.175; Regards, Mike *** Sent via Developersdex http://www.developersdex.com ...more >>

When I am in a database project in VS.NET 2003 EA, using the Run Stored Procedure option times out even though the timeout option in Tools, Options, Database Tools is not checked. Anybody else experienced this?...more >>