Hi, Can anyone please tell me if it's possible to change the text alignment in column[0] of a ListView control? If I try to change it in design view, it won't move from left align. I can "change" it in code but, although it doesn't raise an error, it doesn't change the actual alignment of the ...more >>

have anyone tried generics? I heard it's not anywhere near C++ templates. Thanks. ...more >>

If I try to rename a file with the MoveTo (the only function usable to rename files) and I use as dest name the original name with different case, the MoveTo fails (example: test.txt -> Test.txt). How can I rename files? --- bye ...more >>

Hi there We have a complicated security set up using a COM+ scenario and all our client programs call CoInitializeSecurity at the beginning of the process to get everything working correctly However we have a requirement to use .NET client apps as well and cant find the C# way of initialising th...more >>

how do i minimize a window in csharp? i used to use showwindow in c++, but it seems like that's not a choice...more >>

hi to everybody I have a small but urgent problem... seems me and my friend got ourselves in a project a bit out of our league, and now we're stuck. and the delivery date was... um. last month :) the program is supposed to communicate with a COM port-based device that is actually a reade...more >>

The following set of attributes is always included in file AssemblyInfo.cs: [assembly: AssemblyTitle("")] [assembly: AssemblyDescription("")] [assembly: AssemblyConfiguration("")] [assembly: AssemblyCompany("")] [assembly: AssemblyProduct("")] [assembly: AssemblyCopyright("")] [assembly: As...more >>

I'm wanting to track the number of users using an application. I'm using App variables and incrementing an int value by 1 everytime a new session is started. I'm having a problem decrementing this int once they close their browser. I assumed that putting some code in Session_End in Global.as...more >>

SGVsbG8sIEFsbCENCg0KSXMgdGhlcmUgYW55IGVxdWl2YWxlbnQgdG8gQyMncyB0eXBlb2YoKSBp biBNYW5hZ2VkIEMrKz8NCg0KUmVnYXJkcywNCjAxMS4NCg0KV2luYW1wIDUuMCAocGxheWluZyk6 IFN0cmF0b3Zhcml1cyAtIDR0aCBSZWljaA== ...more >>

hello, I am getting errors in the line BindableAttribute myAttribute = (BindableAttribute)attributes[typeof("Assembly text name, Version, Culture, PublicKeyToken")]; The errors are Type expected Invalid expression term ']' Invalid expression term ')' ...more >>

hello... i've another question! ;) how can i know from user control i writen, in wich directory user program, wich uses my control, sits..? thnx... ...more >>

hello... i writen my user control, but how can i make it to remember its properties, assigned during design time whru real time... lets say i have property, BackColor, user set's it in a design time... i want it to be the same in the real time... tnx... ...more >>

The code below does not seem very efficient if you have a very long string and are doing many replace functions, there has to be a better way to do this without reassigning the value type string over and over, any suggestions? Thanks string s = "ABCD"; s = s.Replace("AB", "12"); s = s.Replac...more >>

I set the thread priority via the following statement. System.Threading.Thread.CurrentThread.Priority = Threading.ThreadPriority.AboveNormal; However, when I look at the thread priority in the Task Manager, it reports it as Normal. What am I missing here? ...more >>

Is there a way I can provide an attribute(s) to methods of a class such that all methods with a certain attribute could be bindable and used as a datasource in a dropdownlist? public class MyClass { public MyClass() { } [Description("Method 1"), Category("User Methods")] [Browsable(t...more >>

Hi over there, What is the difference between the debug option and release one when we run our projects in VS ? Both of them produce a exe file. thanks in advance. ...more >>

Ok, I've managed to add a new menu item to the system menu. intRet = AppendMenu(this.Handle.ToInt32, MF_STRING, ID_ON_TOP, "Always On Top"); How can I now add or remove a checkmark to this menu item. Thanks....more >>

Hi, I'm a newbie in C#. I have a "Hello World" application which all it does loads a text file. The filename and its path (which is suppose to be loaded in the form) may vary and its path is written in app.config file. If I want to install my new app in another PC what should I do ? Should I ...more >>

Hi, I'm doing a C# app which embbeds an ActiveX. If I press Ctrl+Z the ActiveX performs an "Undo". How can I send the "Ctrl+Z" keypress into the system through C# code for instance from a menu ???? Thank You in advance. ...more >>

I have a question regarding multi-threading in a Windows Forms application. I am writing a simple application to merge together a group of files. I have created a class that holds the list of files and contains a method to actually merge the files together. The list is built and manipulated...more >>

Hi, does anybody know how i can get the actual week of the year with the datetime object? Is there an other way? thanks pascal ...more >>

Hi, I recently created a generic data access layer so I can use it in many applications. It is designed to return datasets, datareaders, scalar values... I recently have come across in an application that uses the data access layer needing a datatable instead of a dataset. What I have been ...more >>

The form has a panel that is populated in c# code. Panels containing button controls and label controls are added to the main panel. The first time the form is displayed it works fine. When the user initiates an activity, I execute code as follows pnlPlots.Controls.Clear() Then pnlPlots is populat...more >>

I use the following code to save pages as MHT 1 CDO.Message message = new CDO.MessageClass(); 2 message.CreateMHTMLBody("http://www.google.com/", 0, "", ""); 3 ADODB.Stream stream = message.GetStream(); 4 stream.SaveToFile("fanms.mht", ADODB.SaveOptionsEnum.adSaveCreateOverWrite...more >>

I need to share a single socket among many clients so I am thinking that a singleton .NET remoting project would work well. I do need to be able to stop it though. If I override as recommended public class MyClass : MarshalByRefObjec public override Object InitializeLifetimeService( ...more >>

Hi every one, I am about to write two applications in .NET using C#, my challenge is how do I make them communicate (both being running in the same PC) this is what I was trying 1- using sockets, it appears to be too much for two application running in the same pc 2- using remoting, again it a...more >>

Hi All, Is there a tool in .NET that I can use to create my own *.chm help files? If not, is there a free tool somewhere? Thanks, RF ...more >>

I wrote following finction to exttract items from AD.NET connection string. For example: SplitCommaAssignments(cn.ConnectionString,";","=") return a hash table contains all items in connection string. I have suspission about the way that i create string array and leave it to garbage colle...more >>

In my C# code, I'm using the <code> ... </code> tags. Within those tags, I'm trying to show what the app's config file should look like. That means I'm trying to put XML into those tags! But of course I don't want them processed by any documentation generators. Is there a way to specify comm...more >>

I am working with OleDB Access DB and CSharp. How I can sysnchronize changes in DataTable with my Database??? What is wrong here ??? ============================================================================ public static void AddRow(DataTable myDataTable) { Console.WriteLine("\nAddin...more >>

Hi all, In visual studio if you hover the mouse over a method of a object it will tell you what it belongs to what it is and underneath it gives a brief description i.e.. if you hover over DataSet.Tables this pops up: System.Data.DataTableCollection DataSet.Tables Get the collection of tabl...more >>

I have a method who signature looks like : void methodName(Object security, int cookie, object Fields, object OverrrideFlds,object Overrides, out object resut, object Monitor) So far I have used Type.Missing if the parameter is optional, In the signature above there is "out object result"...more >>

Hi I am new to C#. I have done a good deal with VB.Net. I am noticing how difficult case sensitivity is for me in C#. Is there a way to turn it off or make it smarter about what I am trying to auto-complete with Ctrl-Space? Thanks! ...more >>

How can I send a string from one application to another? I want to send debug messages from any applicaton to a debug application, whose only task is to receive strings and show them in a list box. Odd Magne Hågensen ...more >>

I have a temporary dataset that I can't seem to throw away. I've tried clear and dispose, but the GC never seems to reclaim the memory. I have a windows form with a DataGrid on it with datasource set to this temporary dataset. I have buttons that fill the dataset, manipulate it, and clear it. ...more >>

I have an app which recieves assemblies from a network stream as byte [] and then loads them, however they are loaded as local code so they have full privlagies, so to limit this i created an app domain at runtime and used the domain.load(byte[]) method to load the assembly however it throws an exce...more >>

Hello Group, In my apps I formating string: String.Format("{0,-15}{1,-10}{2,-25}{3,-25}",myTable) How change width column in code. Column width must be more that length string in table. I know how is max length string in myTable. this code is incorect int a = -15; String.Format("{0,-a}...more >>

I have a bit of existing C code that I would like to use in a C# application. Can anyone direct me to some instructions on how to make use of this? I'd also like to find some step-by-step instructions to make a DLL from this C program using Visual Studio .NET. I haven't been able to find any ...more >>

I have a bit of existing C code that I would like to use in a C# application. Can anyone direct me to some instructions on how to make use of this? I'd also like to find some step-by-step instructions to make a DLL from this C program using Visual Studio .NET. I haven't been able to find any ...more >>

I know that I can use an indexer to pull data from an array. data = SomeClass[0]; But what I want to see as the interface is: data = SomeClass[0].Data Specifically what I'm trying is this: struct MyStruct { string name; int value; } public class MyClass() { MyStruct s = n...more >>

I used to assign a default value to a parameter in C++. How do you do in C#? When I try, it gives an error, "default parameter specifier is not allowed ...." Thanks. ...more >>

What code would I need to write to this struct? The following code deserializes the struct so the function runs correctly. But in order to write to the struct before doing the function call, I need to add code in System.IntPtr ICustomMarshaler.MarshalManagedToNative(object ManagedObj) and void I...more >>

Please help! The following C# code retrieves the MAC address. The code works great in a regular windows XP system but it does not work on an XP Embedded OS image running the embedded version of .Net. I am probably missing one or two files but I am not sure which ones, Could someone help me??? ...more >>

It surprises me that there is no constructor for SqlParameter with parameters for name, the SqlDbType, size AND VALUE (?). There's of course this constructor : SqlParameter pm01 = new SqlParameter("@fieldname", SqlDbType.Int, 4); But then you will always have to set the value separtly...more >>

I would like to know from the experienced C# programmers witch is the best approach to solve name conflicts between function parameters & fields. Option A (using this): class Foo { string name; public Foo(string name) { this.name = name; } } Option B: (usin...more >>

Hi there, I have a C# project which export into a class library (with a multilevel namespace) then I would like to use this library in a ansi c file - if neccessary via a cpp file. I would like to link it explicit using the function LoadLibrary and then using the function GetProcAddress. The ...more >>

Hi all, here is my story: WHAT I HAVE I'v got a web aplication (many aspx and html pages), some of this (html) pages host .Net windows controls (derived from System.Windows.Forms.UserControl) inside HTML page. These controls are web service clients on same web server, in the same web applic...more >>

HI!!! If you would happen to get the chance to build an enterprise application for a customer with aprox. 100 Clients (.and increasing) which technology and architecture would you choose. The security policy is pretty strong so we would have actually only port 80 available. Besides that no dep...more >>

Hi, I'm using C# and creating a wrapper class for Excel. On my laptop, I have Office 2000 installed and on my "normal" computer, I use Office 2002 (XP). Now, the Workbooks.Open method takes a different number of parameters in both versions. In XL2000, it takes 1 necessary parameter and 12 op...more >>

here are C++ Codes class Row { //something... } Row MyRows[5]; void NextNum(Row * PointOfRows) { //do something... if(something) { //do something... PointOfRows++; NextNum(PointOfRows); } } Main() { NextNum(MyRows); } ...more >>

I want to create a progress bar in the console [# ] [## ] etc etc but overwrite itself=20 how would i go about doing this.. with System.Console.Writeline or Write = methods I dont see anyway to reloate the cursor or clear the screen and = reprint I would rather just overwrite...more >>

hello, i need to create file-links (.lnk-file). does anybody know a .Net-component with this functionality? thx ...more >>

XmlSerializer object in .net framework allows serialization of objec type to xml. However it also inputs the xml declaration string (<?xml version="1.0" encoding="utf-8"?> into the output when serializing. Is there a way to suppress this string? Thanks. Raghu/.. ...more >>

In a class containing only public constants - a class which will never be instantiated or subclassed - should the class name be pluralized? e.g.: sealed class ErrorMessages { private ErrorMessages() { } public const string UnableToWrite = "Unable to write to output file.";...more >>

Hi, I want to initate a new object. The Type of the object is only known during runtime and saved in a variable as System.Type. How do I create and initiate that object? Thanks, Rainer. ...more >>

I'm new to C#, and wondering how to return multiple values from a method. I need to have a method return 3 int and 1 string. thanks ...more >>

how to use dl file in C# ,and show a example to it ,thanks!! ...more >>

Hi, Can ServiceController control a windows service on a machine that is in other domain? What is the proper syntax for machine name, that case? I tried "domainname\machinename" and "machinename@domainname", both doesn't work? If ServiceController does not work with machine in remote domain, i...more >>

Hi I want to catch the event DoubleClick or Keypress from a windows datagrid cell Is this possible I only find datagrid events, they dont work in cells.. Thanks for your hel Bernardo...more >>

Hello, I'm hoping someone can help / provide me direction to support what I'm trying to do. I'm interested in how Symantec's Norton Antivirus background application runs. They have a separate application that runs (Windows Service) that downloads from their website automatically (if set) the...more >>

I have a server with an open socket, and I'm doing this: if (sock.Available > 0) { sock.BeginReceive(...) } else { Thread.Sleep(...) } ....in a loop, so that I only run BeginReceive() when there is data present to be received. Problem: How can I introduce an extra bit of code be...more >>

Hi all. My question is simple. How can I get mouse information from an unmanaged DLL called from a C# windows application. I have a very very simple C# windows application that simply overrides the OnPaint command like so: protected override void OnPaint(PaintEventArgs e) { Wrapper....more >>

I have a process built which load records from a text file (not delimited). The record length is usually 400 characters, but in some instances can exceed 800 and each file can contain anywhere from 2,000 to well over 50,000 records. The process breaks down each record into approximately 32 field...more >>

I've created a ClassLibrary and need to show a messagebox at a certain point in the code. The MessageBox class is in System.Windows.Forms, but when I try to use that namespace, it isn't recognized. Are you allowed to use the MessageBox class in a ClassLibrary. If not, how do you display messag...more >>

Is this a bug with DataView.Sort Data Row0= "" Row1= "T" Row2= "S" Sort Ascending Returns data as Row0, Row2, Row1. Surely it should be Row2, Row1, Row0, this is how Excel does it. ...more >>

Where can I learn about naming convention in C#? ...more >>

In a class containing only constant data, should the class name be pluralized? e.g.: class SecretCodes { public const string Alpha = "asfasfdfsadf"; public const string Beta = "sadfsfdsasfdasfad"; } Should this be called "SecretCodes" or "SecretCode"? I instinctively think that ...more >>

Hello, Could you please advise me on the following. We have a product that will be installed on a network. Each client machine will have access to the network share and will be given the correct trust to run the application. The current problem we have is that when we start the appli...more >>

Hi I have a question.. In a windows datagrid and when I make a DoubleClick in a cell another form opens, and then I want to chose a value and return' it to the cell where I did the DoubleClick.. How can I receive the value and put it in the cell Thaks for your help Bernardo ...more >>

Can someone point me to some code (that functions) on how to compress strings in C#. We need this to speed up out WebServices/MessageQueue applications and so far what little code we found has not worked. A URL would do nicely. Thanks....more >>

I have a textbox where I wish the text to be selected when the user clicks on the textbox. Textbox.SelectAll(); or Textbox.SelectionStart = 0; Textbox.SelectionLength = Textbox.Text.Length; Neither work if the user clicks. Both work if the user tabs or I set focus in code. :( J...more >>

I'm trying to write my first project using inheritance, and I'm not sure whether I'm going about it the right way (excuse me if my terminology isn't quite right). If I have a class called Person which is used to set variables DOB, Address, MaritalStatus, and then Employee which inherits the ...more >>

Hello, I have a class with two constructors: public MyClass { public MyClass(int i) {...} public MyClass(char c) {...} } If i use second constructor while creating an object, compiler gives an error: 'The best overloaded method match for 'MyClass(int i)' has some invalid a...more >>

Hi Am very curious. How, if at all, do people make use of the 'using' directive to alias namespaces or classes to make their code more readable (or otherwise e.g. more flexible/maintainable)? Are there any guidelines/rules? Is it bad to have a load of using directives at the top of a source...more >>

Imagine the following: class MyClass { public enum ErrorCode { InvalidCommand, NotEnoughParameters, None } //... } Should ErrorCode be declared as part of MyClass, as above, or should it be declared outside of it?...more >>

Where can I find information on writing a C/C++ wrapper in Dot Net? I have good experience in C (not so much in C++) so I'm thinking of writing it in C. The wrapper's going to be used for some dll functions (also written in C) that we need for our C# application. It's really going to be really ...more >>

It means not for image processing but for 2D transformation. For example: Union, intersect of two polygons, checking if point is inside polygon etc. Thanks in advance -- Gawel ------------------------------- Pierwszy ³yk z pucharu nauk przyrodniczych czyni ateist±, ale na dnie pucharu cze...more >>

Hello, I just wonder how can i destroy an object? C# doesn't have a 'delete' keyword. I know about garbage collection, but my program generates a large graph of objects, which will ocuppy a lot of memory space, and i want to be able to clar the mess manually, i don't want to depend on garbage...more >>