I have an sql-statement this.daKioskSelect.CommandText = "SELECT Count(KioskID) AS AntallKiosk FROM Kiosk WHERE KioskID ='" + strKioskID + "'"; How do I get the AntallKiosk into a textbox on a webform? Like I did with ADO rs.AntallKiosk.value regards reidarT ...more >>

How do I checkif a string is empty in C# like isNull(string) in VB? regards reidarT ...more >>

I noticed that every time I override a class member, the intellisense behavior is to automatically add a call to the base class of the overridden member such as: public override void SomeMethod() { /// Some quality code goes here. base.SomeMethod(); } 1) What would happen if I ...more >>

Hi, I am using System.Diagnostics.Process to launch (shell extension) a process. I have forms in my application that are specified as "top-most" but I would like my launched application to be top-most of those forms when it arrives. At present, it isn't. I have the same trouble with Micros...more >>

I would like to include a head menu in all pages, how can I do it using, include,... which is the syntax? Thanks Bye ...more >>

Hello, IL does not have indexers. Infact the c# compiler compiles indexers to Set_Item and Get_Item (or whatever name I choose via the IndexerNameAttribute ). So how does c# (compiler) know that something in a IL Assembly is supposed to be an indexer ? And more important, what ways do I h...more >>

Why is this using 50% of available CPU? What I am trying to accomplish in this service is as follows: In the main class (COS_Service) , int Main(), initializes a timer. Each OnTimer() event is to create multiple threads to perform their assigned task. I also want to do some checkin...more >>

What are .NET programmers making now a days? No one has to answer or give their exact salary, but I think it might be useful for those of us who think they might be underpaid :) I know it varies a lot by where you live and how much experience you have, so it will be hard to draw any conclusion...more >>

I have been looking to no avail for a book, site or something that explains the processes involved with writing my own custom components such as grids, textboxes and such and then registering with environment so that I can choose from the list of components. Can anyone point me to a resource o...more >>

Hi, I'm trying to remove items from a collection this way: foreach(Object myO in ObjectCol){ if(myO != "xxx"){ myO.Remove(); } } But I'm having an error telling me that Collection was modified... I understand this, since I remove one object from collection... What is the best way ...more >>

Hi, My asp uses .Net remote to call to MyServer 1.assuming I am not using the GAC,should I install all MyServer.dll dependencies on the Bin folder of my .Net application as well,or is it enough to install MyServer.dll? 2.assuming i am using the GAC,should the MyServer.dll or any of its ...more >>

Can I open a StreamReader on type File ( instead of a string filename ) ? ...more >>

The code below does not work -- but is there a way to do this? I want to both read a line and string sline; StreamReader m_streamReader = new StreamReader(fi); while(sline=m_streamReader.ReadLine()) Debug.WriteLine(sline);...more >>

Hello Friends, When we bind custom collection object (which is populated with objects of custom class) to a Datagrid, the paging links(or numbers) are disabled and only first page number is getting displayed under the datagrid. Thanks & Regards, Mathana Gopalan.C ...more >>

After defining a trace file listener, I wrote a small method for doing logging and put it in the main class for a web service, Service1.cs : public void log(string s) { Trace.WriteLine(DateTime.Now+":"+s); } Now I want to access it from other classes in other files, so that they all ...more >>

Is there a step by step tutorial for NAnt out there? All I found is bunch of fragments here and there with people assuming that you already have solid knowledge of it. Their Wiki, while nice that they have it, is more for encyclopedias than learning about something complex. Thanks...more >>

I know in VB we had IsObject ut how do I check an object to see if it exists in sharp (without bombing the if)? ...more >>

Hi, I have a windows application This guy monitors a directory on my PC (using FileSystemWatcher). When any file is dropped into this directory, I want the application to send that file(s) by FTP to an FTP server. What are the classes that I should use? ...more >>

Is is possible to create a C style union in C Sharp? I'm trying to call functions in an unmanaged DLL that has a struct with unions in it as a function parameter. I've looked at the "StructLayout" attribute and the unmanaged code examples but I don't see anything about unions. Regards, F...more >>

I have written a custom databound grid control that we've been using successfully for months, but one of our developers has just run into a problem that I can't figure out. The code for setting it up is as follows: DataSet dataSet = new DataSet( "TestSet" ); DataTable tableParent = dataSe...more >>

I'm using the December CTP of VS.NET 2005. There is an option there to use a business object as a data source, but it assumes you have a bunch of public field names and list operations built in, etc. My business object simply returns a DataSet. What I can't figure out is how to create a Dat...more >>

Hello, I am having a bit of a problem with Deserialization. I need to "override" the special constructor used when an object is deserialize. In thes constructor I have to execute some code that is requierd by our framework and then call the 'original' special constructor. How can I call ...more >>

Is there a way to get the value that is stored in the AssemblyVersion attribute that's in AssemblyInfo.cs?...more >>

Since I am being challenged with learning c# I figured I could pass some of the pain on to you guys :-) I have another question(this one is important for me to fix before I can get my app to Beta) My app (an image viewer) opens with a Main form with a file explorer if you open the program wit...more >>

Hi there. I have the following environment: Active Directory running on Windows 2000. There is a root domain called ad.sys and within this root domain there are the following subdomains: dom1.ad.sys dom2.ad.sys dom3.ad.sys I need to restrict access to a certain part of a ASP.NET page...more >>

Is it possible to export functions in C#, so say an unmanaged C++ application could call the functions? This question relates to making plugins for an application written in C++ that has to call two functions in the plugin, myplugin_version and myplugin_main. Is this possible in C#? Thanks,...more >>

I would like to store an object graph in a SQL tables (that map via a schema generated using xsd.exe to my objects properties - generated using xsd.exe) and then restore these objects from said tables. Dose anyone know where I might find a good description of how to acheieve this or of an...more >>

I have a form with some comboBoxes and other controls. When tabbing through the controls the cursor "disappears" about after the 4th comboBox. Apparently there is another item being focused, however, I have checked the tab index value on each of my items and they are all set in consecutive ...more >>

Hello ! I have a little problem accessing a Visual Foxpro-database using ODBC = (Driver 6.00.8167) (using System.Data.Odbc). Reading a column, defined in the Foxpro table = definition as a kind=20 of binary char (i'm no foxpro-expert and the database is predetermined) = and containing=20 Un...more >>

Hi all, I need a treeview with the vertical scrollbar on the left-hand side of the control. Can someone point me in the right direction for the best way to do this? Articles, source code, links, etc. all appreciated. TIA ...more >>

I give permissions for ASPNET on a top level subdirectory. A windows program copies a file into the subdirectory, however, my web service cannot access the file because it does not have permissions. Shouldn't the file automatically inherit permissions by being dropped into that top level...more >>

Hi, Is there a way to specify on the predefined format strings like P and N that you want displayed all the decimals in the number... for example 3 will display 3 2.1 will display 2.1 3.21 will display 3.21 I know I can do it will a custom format like 0.##### but would rather if th...more >>

Hi everyone, Hopefully someone can help me on this. I've been trying to find out how to change my naming on my executable program when I have updated the application ie: myApp.exe1.0 to myApp.exe1.1. I am making my project with C# in a window environment. How can this be achieved and is ...more >>

I am trying to open an image in a little image viewer I wrote(it has its own file explorer but I want it to also open from Windows Explorer) When I select an image from widows explorer and use "Open With" point it to my app, I can read the args[0] which contains the path to the file but I c...more >>

Is there a way to set textbox font to bold at runtime? Thanks. ...more >>

I'm writing an application that requires some dns queries (MX etc) not provided by System.Net.Dns. So far I managed to write my own dns class with methods to query a given dns server. There is only one thing left I could not figure out so far. How can I get the list of dns servers used by...more >>

I now understand the issue. The code Bob posted has the same issue. It appears that when you have the screen resolution set to 32-bit, then the transparencykey does not work. Thanks guys for your input. Publicjoe C# Tutorial at http://www.publicjoe.f9.co.uk/csharp/tut.html C# Ebook at ht...more >>

We have series of .SAS files (Macros), which produce output as graph and datasets. In some cases the output dataset is fed to the next set of Macros that gets executed. We need to call these Macros from .ASPX files, pass some parameters and display the output (graph/data in grid). As per our kn...more >>

Hi, As a follow up for my previous post, i have one more question: Do following two examples differ in terms of optimization(execution + memory): void Func1() { CUtil u = new CUtil(SomeDataBaseConnectionParams); if (u.SomeDatabaseCheck()) { DoWhatever(); } } vs void Fun...more >>

Hi, is it possible to determine if the PropertyType of a property support IList? We are inspecting all properties of a Type and we need to care about the properties which have a type which supports IList. I tried to do the following: public void TestPropertiesOfType() { System.Type ...more >>

Hi all, Just playing around a MS how-to sample to work with an Excel file from within C#. Everything is fine and I understand it OK, however when Excel and the application are closed, there is still an Excel process showing up in the task manager. Every time the app is run, another process ...more >>

Hi, I'm having a problem binding two radio buttons to a dataset. Seems that the radio buttons are visually updated, but the corresponding values are not updated in the dataset. I have many other controls that are bound with no problems. Any help or sugguestions are much appreciated!! ...more >>

I've written a C# DLL that I want to include in my other C# projects. What I want to do is include the Debug version of the DLL when I am building the other apps in debug mode and Release version of the DLL when I'm building in release mode. This is quite easy to do in VC++ using various macro...more >>

Hi, I want to draw directly on to the screen. I think i should get the Graphics object of the screen. It's easy to get do it in C++ (by GetWindowDC(NULL)). But how to do that in C# ? Thanks ...more >>

I am using OpenFileDialog. I am using REstoreDirectory = true When I successively open the file dialog the last directory opened is not remembered. How should I achieve this. Thanks ...more >>

Hi, i am searching a tool which shows me information about a method. i want to know which other methodes calls a method. Example: Method1: - called by: Method2, Methode3, ... - calls: Method5 For VB.net the tool aivosto project analyzer works fine. But i need this for c#. Tha...more >>

Hi, Lately i've been (and still am) fixing some memory leaks problems in the project i just took over when i got this new job. Among the other issues i've noticed that for localy created objects it makes difference to explicitly put them to null after working with them is done - it somehow ma...more >>

All, If I do something like this: lock( typeof( mainform ) ) { .... if( some condition ) throw new Exception() .... } when "some condition" is true and the exception gets thrown does the lock get released? Thanks PT ...more >>

Hi, I hope this post will find it's way to some MS technical authority... I am experienced with bought Unmanaged C++ and Managed code ( C# ), There are some issues with the .NET framework that make me wonder... Take in mind the following points: 1. Managed objects are managed by the GC t...more >>

Hi I am writing to the event log in a c# console app, but can not seem to write data. the message below works with 23 being the catagory, just wondering what format to use to write for instance a byte of data? System.Diagnostics.EventLog.WriteEntry("newlog","testmessageone", EventLogEntryTy...more >>

Hello I want to create a set of controls that have some common methods and properties. I was thinking that I should subclass the UserControl class and add these common features there and then base all my custom controls on this new MyUserControl Class. Is this the way to go? The MyUserContr...more >>

Hi all, I'm relatively new to this so please bare with me here. I have a whole lot of VB dll's that I use and all of them inherit from one central dll. Now in VB, I simply use the Inherits keyword and include the base dll in my references for that particular project I'm working in. I also ...more >>

Hi, I have a solution with an ASP.NET project and a business and a data layer in separate projects. The following code string test = System.Diagnostics.Process.GetCurrentProcess().ProcessName; runs fine in the ASP.NET app and in the business layer, but throws a security exception in the d...more >>

I have binded a dropdownlist control to a data view. I am trying to add a listitem to this already binded control, however, i cannot figure this out. My code is: // code to create data view object (dv) DropDownList1.DataSource = dv; DropDownList1.DataMember = "vStA"; DropDownList1.DataTe...more >>

Hello! I am using a DataGrid to show a table. Some of the columns are showing numeric data. I need to show these numeric data as hyperlinks so that the user can drill downward (or get more details about the data). Thanks in advance. Newbie...more >>

I have got a problem with WMI's Win32_LocalTime: here is the msdn reference: http://msdn.microsoft.com/library/en-us/wmisdk/wmi/win32_localtime.asp I'D like to have a timer which pass me an event every thursday at 7 am. I have got a method to produce a querystring to configure this timer (...more >>

Is there any built-in functionality in .net or Win32 to burn CDs and DVDs from within a program (c# or c++)? If not, can anyone point me toward type librarys or 3rd party software that would enable programmatic DVD burning?.. ...more >>

Why isn't there a 'throws' keyword in C# like java - i would like to declare a function and say - public int addup(int a, int b) throws ArithmeticExceptio, DivideByZeroException { ... ... } just like java so that addup function only throws these two types of exceptions is there...more >>

Since installing SP1 and using VS.NET 2003 I have been having terrible problems with the intellisense locking the IDE. It only seems to happen with certain assemblies, but happens a lot. For example if I type: MessageBox.Show( this, "Test", and then start using the Up and Down arrows to ...more >>

Thank you for taking time out to answer my question ...more >>

Hello, I'm using the following System.Collections.IEnumerator IEn = ((System.Collections.IEnumerable)DataSource).GetEnumerator(); while (IEn.MoveNext()) { dr = m_contentDataTable.NewRow(); dr[0] = IEn.Current; m_contentDataTable.Rows.Add(dr); } However I would like to get the content...more >>

I have a ListBox on my form and wand to do auto scrolling, I can do that by: myListBox.ClearSelected(); OutputListBox.SelectedIndex = myListBox.Items.Count - 1; But it causes to unselect all selected items, so I wish do that by moving the vertical scroll bar, imbedded in the ListBox. But I c...more >>