Hi, I'm supposed to develop a Windows CE app in VB.NET, I'd prefer C#. Is there a reason to use VB.NET in WinCE over C#? Isn't C# more powerful, or is the difference mainly in syntax? Or are the benefits to using VB.NET? If it's preferable to use C#, what reasons should I use? Thanks a lot ...more >>

Is there a limitation to the number of columns you can define in the Query Builder of a data adapter? it seems the limit is around 96. i know i can split the query into two parts, but then it would increase the number of total queries i have to make by a factor or 2. i tried using Select * but t...more >>

Hello I have structure: public struct buf { public int type; public int len; public byte [] data; }; and in my program: String d="something"; send_buf.data=Encoding.ASCII.GetBytes(d); and after that i want to send whole struct throught my socket function: System.Net.Sockets.Soc...more >>

Thank you so much Stoitcho,but then I have another question.I was able to implement a low level keyboard hook (globally of course) by using (almost) the same code fragment.So I thought if it works for every top level window on desktop globally it would work for a single procedure too.May be I'm ...more >>

I don't know if this is the right group for my question, but I'm seeking advice from knowledgable .NET developers. Hopefully I've come to the right place. I work with a document management application which is tightly integrated with the workstation Windows environment. Our software does not n...more >>

Like knowing the size of contextmenu? Greetings ...more >>

Hi everyone, I have the following code that basically reads all information about a domain user. System.DirectoryServices.DirectoryEntry entry = new System.DirectoryServices.DirectoryEntry("LDAP://" + dom, "myusername", "password", AuthenticationTypes.Secure); System.DirectoryServices.Direct...more >>

I wrote following code: using System.Runtime.InteropServices; [DllImport("winmm.dll")] public static extern int mciSendString(string lpstrCommand, string lpstrReturnString,int uReturnLength, int dwCallback); [DllImport("winmm.dll")] public static extern int mciGetErrorString(int e...more >>

Hello Thanks for reviewing my question. I am writing a shared Office AddIn that uses a couple of user controls on a form and from time to time I receive this error "COM Interop registration failed. Access is denied." The only way I have found around this is exit VS.NET and restart it. When deb...more >>

Hi, Are string parameters in functions by refrence or by value ? Thanks, Ali ...more >>

Hi, enum LogType :string{}; I underestand that I can't have enumeration of strings. Is there any turn around for this problem? Thanks, Ali ...more >>

Hi, From which version do I get template stuff in C#. I was trying something like ArrayList<Point> pa; etc. And it didn't work. It was at work and I don't recall the version I have there. Does it depend on the .net framework too? Thanks. --- Cheers, Tom Tempelaere ...more >>

Below is the code snippet that I'm having problems with, the hook seems to work (hookResult returns a value other than zero) but then explorer crashes.Also I'm aware of the fact that instead of specifying a dll with my hook function embedded, I used my executable's module HINSTANCE. But I guess ...more >>

Hello, I want to store references not values of MyStruct in an Array (MyStruct[])... is it possible? How? Thanks, Jose. ...more >>

Hi all, I am wanting to use the mappoint service from a usercontrol on a webpage, in development this works fine but when my control is deployed and it tries to call the mappoint service I get a security exception, Anyone any thoughts/experience with this ? thx Dave ...more >>

i wonder how to download a webpage automatically using a C# program with WebClient class. i tried it and it's working. but somehow the data it gets is different than the page shown in microsoft internet explorer. and i wonder how to get around the login problems. the C# programs only downloads ...more >>

I'm developing a .net application and I need to save files in a network drive. I need to create a subdirectory and I've tried this: Directory.SetCurrentDirectory(Path); Directory.CreateDirectory("folder1"); I've tried with values of 'Path' like "Z:\Dir", "\\remoteserver\Dir", ... (Z the m...more >>

Hello Group, I've problem how read: Hard disk serial number, and processor serial number in Windows 98 SE. How use WMI under Win98 Thx PawelR ...more >>

I have a function that takes in a list of IDs (hundreds) as input parameter and needs to pass the data to another step as a comma delimited string. The source can easily create this list of IDs in a comma-delimited string or string array. I don't want it to be a string because I want to overloa...more >>

I am attempting to create a UDP socket where inbound traffic is handled by one thread and outbound traffic is handled by another thread. The primary problem that I am having is accessing the thread from more than one thread. It also seems the .NET does not support public global socket delcarations. ...more >>

Hi all, Can anyone help me please. I have the following code that is recieves a list of controls, creates them dynamically and adds them to a table. What I need to do is figure out whether the object I have created has an avaible data source. As I create the objects as type System.Web.UI.Co...more >>

I wish to access a config file for a DLL and I want to keep it in the same location as the .DLL. Eg. mylib.dll & mylib.dll.config How do I find a path to an in memory library...more >>

Hello, Does anyone know of a way to access a named event created by C++ program using C#? Any samples would be greatly appreated. I found AutoResetEvent and ManualResetEvent in C# but doesn't seem to have the parameter for the name available. thanks in advance Regards, Anthony Yio ...more >>

Hello, I am probably facing a sort of language barrier, but i can't really get what 'marshalling' is in terms of .NET Is it a kind of type casting? And when do you use it? Thank you, Andrey ...more >>

Hello, I'm building a small TCP based server which uses the Async commands. When a new connection is made to the server, I store the new socket in a hashtable, using the client IP as the key. Then I have a method in my server which is called Stop(). Now I would like for some advice on how...more >>

I am writing a C# program that needs to see if a particular program is installed (it would be listed in the "Add or Remove Programs" list from the Control Panel) and uninstall it. Is there a way to do this?.. Thanks for any help... Bryan ...more >>

Hi! I've been trying to do a small snmp program with the system.management stuff, but there aren't (at least I can't find) any examples with using .net framework for snmp programming. Any examples or help/hints are appreciated. Jani ...more >>

I'm pulling SQL data into a dataset to be used to perform some math against. I asked this question earlier, but the answer someone gave me left me with further questions. The SQL data is stored as decimal, and the local variables I create to store them in is float. Fine. When I iterate through a ...more >>

Is there a keyboard shortcut to expand/collapse a region? Thanks, Mike Rodriguez ...more >>

I have a Decimal or a Double - your choice. I'd like to print the number as string with a specified number of decimal places. Let's say my number 110.5, and I'd like to capture it in a string with 3 decimal places: "110.500". How do you do this? My method below isn't working so hot. Decima...more >>

Please help figure what I am doing wrong in this code. All I am trying to do is send come data to an aspx page and get some data back. I watched my variable in debug mode and can tell that I am reaching the web site but my data seems not to be posted. Also in debug mode I get error "Remote server re...more >>

I am looking for information on using the [DeviceIoControl] Win32 API procedure, or its equivalent in C#. I have looked but can find no satisfactory references. I am working on an existing product that has a few kernel components (device and filter drivers) and I need to be able to communicate...more >>

hi all. Ive been looking into the use of pointers to try and get my head around them which has led me onto a question. 1. How do you know what memory position C# compiler will use for each variable declaration as this example shows they seem to be stored in reverse order of declaration (see code...more >>

Hi, I have three enviroments; a development, a testing and a production enviroment. I'm making a big application (.exe), which uses alot of different webservices. I don't use the webservices by adding a WebReference, since it does not allow me to keep state (cookiecontainer) or to specify f...more >>

does any one know how to import word com obj into c# code? i know visual studio can do this but i'm looking for a way to do it purely by code. 10x. sharon. ...more >>

Hello, I am trying to write a generic tool that accesses a SQL server and reads/updates/deletes/creates records. I want to reference this tool from my asp.net pages to talk to my db. by the way, i want the results of any read, update and create to be returned in xml. when reading data, i ...more >>

In PHP there is a way of finding your current location in the file structure with the __LINE__ and __PATH__ special commands. Comes in handy for debugging, as well as relative pathing when making websites. I assume that being compiled __LINE__ makes no sense in C# asp.net, but __PATH__ stil...more >>

Hi. Coming from PHP where all things are strings, the char is a bit hard to get used to. So far, I'm not really sure what the dif/use is between a string and a char[] array...except notation, and the fact that most functions I expect to use a string with, expect a char, or char array... Spe...more >>

Is there a way to insert a newline into a documentation comment? The intention is to have the tooltip that appears with Intellisense show the line breaks so that the description is easier to read. For example, I have a method where one of the parameters is a bool. The diference between true ...more >>

How can I run dropdownlist_SelectedIndexChanged event on form load? Thanks ...more >>

How would I need to call MessageBox.Show() so it displays a variable of type char[] of 9 chars (char[8]) ? If I use it normally (MessageBox.Show (myVar.ToString()); ), it displays System.Char[]. Thanks. ...more >>

Hi I have DateTime1 and DateTime2. How can I tell what is the difference in millisecons between them ? Thank You. ...more >>

Hello i call it in almost same time (from two different threads): Random rand = new Random(); id=rand.Next(65535); and i often receive the same results. Is it possible ? How windows count this random ? Thanx ...more >>

Hi, can any one help with this frustrating problem. I have a dataset filled from a Jet database via a paramaterised query. I dynamically bind each control to a dataview each time a next / previous button is pressed. Each control is also dynamically created. The dataset reflects the underlyin...more >>

I would like to create form that simply hold textboxes that I log info to during the execution of a single-thread application. In Java, I found JFrame ideal for the task, but I can't recreate the same design with Forms. I can create the Form without Application.Run( ), but when debugging, I can't...more >>

Hi, What is the best method to close database connections? Is it enough if we just use the Close() method. Does the connection get released immediately? or do we have to do anything in the Dispose and Finalize methods? Your replies are appreciated. Thanks in advance....more >>

Hello all, Please could somebody with a little time on their hands help me with my net sockets program? The aim is to send multiple transactions via C# network stream and read them back. The source is designed to send a 50byte header and read the result (50bytes). For one run this is fine...more >>

Hi, I am a VB.net programmer who has to make use of a 3rd party Borland C++ dll. We have a successful VC++ wrapper that presents a number of functions that can be declared and called in VB.net I now want to translate the wrapper to C#. I can find my around C# in a (pardon the pun) basic fa...more >>

Hi folks, I am just learning C# and need some help with setting debugger breakpoints. In VB 6, I could easily set breakpoints on variables which either change in value or evaluate to a specific value. It appears C# does not allow you to do this (at least not easily). This functionality was extr...more >>

Hello When i add new lines of text to my RichTextBox, and when vertical scroll bar appear (there is more text than RichTextBox can display), RichTextBox always display "the oldest text" (vertical scrollbar is always rolled to the top). And i want to see "fresh text" (vertical scrollbar should...more >>

Hello Does it exist any tool (or maybe option in .NET) which could automaticly format my code (which is already written)? Thanx ...more >>

Hi all, I am trying to create a number of System.Web.UI.WebControls on the fly depending on config info so I did this Type type = Type.GetType("System.Web.UI.WebControls." + row.ObjectType); System.Web.UI.Control temp = (System.Web.UI.Control)Activator.CreateInstance(type); But unfortuna...more >>

I am trying to create a simple log file function that logs the timespan and a message. Problem with my code is that I get an error that the file is being access by another process. What am I doing wrong? try { System.IO.StreamWriter MainWriter = File.AppendText(c:\\ImportXMLTimeLog....more >>

Hello Thanks for reviewing my question. I would like to know how can I programmatically select a node Thanks in Advanc Peter...more >>

Hi, I was wondering what is everyone using for Reports with .net? And how do they like it so far? Active Reports / Crystal Rep / ComponentOne Reports /* Sql Server Reporting Eng Which one do u use ? * Only capable to use with Sql Server. Thanks, JJ ...more >>

I'm finding that the AddRange call in the following code takes several seconds to execute (approx. 4 seconds). DataColumn[] adcCols = new DataColumn[3000]; for (int i=0; i<adcCols.Length; i++) { adcCols[i] = new DataColumn(); } myDataTable.Columns.AddRange(adcCols); Is there some way f...more >>

I have a window Form called "Form2". There is only one button and a panel returned from a static method of the "Coord" in this form. In the panel returned, there is a button that can choose image from "OpenFileDialog" and then display it in a picturebox. This actually works properly before the b...more >>

Below is the code snippet that I'm having problems with, the hook seems to work (hookResult returns a value other than zero) but then explorer crashes.Also I'm aware of the fact that instead of specifying a dll with my hook function embedded, I used my executable's module HINSTANCE. But I guess ...more >>

how do i make font changes within one line of text (ie using stringbuilder) when writing to a Word document thank ...more >>

Hi I have an application which has been deployed and worked fine on all previous workstations, it is c# based and uses Crystal connecting directly to MSDE using stored procedures and the ConnectionInfo object. I design the report on the dev machine, connecting to a local install of MSDE, I ...more >>

I'm looking for an Advanced topic C# Reference Book, I know C# fairley well but would like to hit the next level. Any Advice? JB ...more >>

Hi I am busy building the admin part of my ASP.NET application and was just wondering if it is possible to retrieve all user names on the current domain. eg. i am an admin on domain "BEEHIVE" and administering this app, i would like to add users "BEEHIVE\ted" and "BEEHIVE\john" to the list of ...more >>

Hi, Maybe this subject has come up before but here it goes. Im using c# in asp.net and im connecting to ldap server to retrieve some properties from it, some properties work ok but for others i get the error mentioned in the subject line, im using DirectoryService and here is the code. I a...more >>

Just when I thought I'd got my head around inheritance, I'm confused - here's a quasi-scenario: I have an object representing a Department in my shop. It's the sausages department, and has properties (DepartmentName, FloorArea, Manager etc). I also have an object representing a Product (SKU, P...more >>

I am not to familiar with ftp, but in the code I do the following, and it does not work... ff.setGetCamera("cameras.tar.gz"); sendCommand("GET "+remFileName); if (retValue != 200) { //throw new IOException(reply.Substring(4)); } } private void sendCommand(String command) { ...more >>

HI, here's my problem; My application loads up 3 forms at startup. Deppending on what button is press on form1 i want to show or hide controls on form2. I cant seem to get access to the controls on from2 to hide them unless i create another instance from within form1 which i dont want to do...more >>

In Java, the Main method cannot have any other access modifier than 'public'. How is it that in C# you can have a private access modifier to the Main method ? Can anybody throw any light, comparing JVM with CLR Thanks Sujala...more >>

Hi, just learning C# from a book, and I'm using Borland C# Builder. I've entered one of the example programs in the book, and tried to run it, all I'm getting is an error message that I don't understand. The error is as follows: ---------------------------- Description: An error occurre...more >>

I have been using a HashTable to store name/value pairs, but now I need to add a third element (name/value/flag). I still need to be able to index by ["Name"], and I'd like to keep lookup speed as high as possible. I'm considering using a DataTable instead of the HashTable since I have to st...more >>

I get the exception System.UnauthorizedAccessException: Access to the path "c:\Some.dll" is denied. when trying to delete a file I am loading the dll with Assembly.Load(...) then using Invoke to call some code in one of the public static methods of a type After this I need to delete the file b...more >>

I'm develpoing a mapping app and want to store the point data that makes up lines, points and polygons efficiently. Am I better off using unsafe C# and creating structs to hold the data on the stack (100K plus points total) or create classes for all the data and put up with the overhead of bo...more >>

Hi I run an application that shows me this exception SECURITY EXCEPTIO The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please cpmtact your system administrator or change the application´s trust level in th...more >>

Hi, Can anyone tell me how I can populate Crystal Reports, using a DataTable in C#? Regards, Pierre...more >>

I have added couple of comments tags for a method like below.... /// <summary /// MeMethod is responsible for add operation to the employee operation /// <para>Here's how you could make a second paragraph in a description.</para /// </summary When build the xml file through the tools->Build c...more >>

Hi all, when trying to load and create an instance from an assembly I'm getting InvalidCastException. Here's a chunk of code Assembly cAssembly = Assembly.LoadFrom("d:\\DAOTest.dll") object cDAOInstance = null foreach (Type cType in cAssembly.GetTypes() if ((cType.IsClass == true) && (cTyp...more >>

Can anyone suggest ways in which to improve this c# code, i dont like the SetXMLSetting and GetXMLSetting methods, could these be put into a property, and how? Any other ways to make the code more clean and oo.? cheers using System; using System.Configuration; using System.Xml; namesp...more >>

I'm working on a .net component (not a control) and need to find out what form the component is contained in during runtime (DesignMode=False). With a control, there is a parent property (and FindForm) to do this with, but no such luck with a component. I was thinking that I might be able to ...more >>

Hello, Is there any tools or Add-Ins that shows you the stack at design-time (Code Path). Example private void Test() { Test2(); } private void Test2() { Test3(); Test4(); } private void Test3() { } private void Test4() { } So then if I was in function Test4 then it w...more >>

Hi, I am trying to create a program that would provide quick access to a set of user defined applications. I have created a "concept screenshot." Please bear in mind that the resulting program would allow the user to configure which applications loaded within the form, and that if the main ...more >>

Hi, How can I place the icons in the menu ? (What format is recommendated ?) Thank you in advance. ...more >>