Hi there, I have search the web for serial port programming for age. I found some example codes. but I don't know how to test then. I don't have any idea how such program what undernearth. Can anyone give me some help? please add me on msn: pei_world@hotmail.com thanks in advanced ...more >>

What do I have to do to make it possible to move columns around in a Datagrid with my mouse? Christiaan ...more >>

hello there! I've been trying to translate some code in C++ into C#. I've an object in a DLL wich has a Method that recieves an Interface pointer as parameter. something like this: HRESULT _stdcall MyMethod([out] unsigned long* nElem, [out] IMyData** aData); In C++ I simply do this: ...more >>

Greetings. I'm using the Personal (I think that's what it's called) edition of VS C# and I want to build a .dll, which is not an option presented in the IDE. I *think* I can build one from the command line, but am unsure of the syntax. Any pointers? Assume only one .cs file (library.cs). ...more >>

Hi! I have a class Bank and a Class BankAccount. A Bank can contains multiple BankAccounts (logical, isn't it?). The central Bank object contains a datatable which holds the data of all bankaccounts. This means, the class BankAccount must have access rights to the datatable in Bank, but I d...more >>

I want to change the height of the font to fit a textbox. I want to know the ways to do this in C#. *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

is there any way i can user a repeater with in my c# .NET application? apparently there is not one within c# does any one no of a repeater in any other .Net Language? or does any one know of a company producing a repeater component. are ther any plans for microsoft to include a repeat...more >>

hi! i need to search in a datagrid after more than one column any ideas, something already in .NET Framework? the DataView can only search upon one column only, the primary key column Thank you, Daniel ...more >>

Hi, I'm developing an Explorer bar using VS.NET 2003 (C#) on Windows XP. For some time, I've noticed that I don't have filenames and line numbers appearing in my exceptions' stack traces. On the other hand, debugging with breakpoints, etc. seems to work fine in VS.NET 2003. I can't understa...more >>

In my C# winforms datagrid, how do I get the value of the selected cell? In asp.net I can use: dataGrid1.SelectedIndex but SelectedIndex is not available in windows forms apps. HitTestInfo will return the cell number and row number, but I need to get the actual contents of the cell. Th...more >>

Hello I was wondering if you guys know of any tutorials on how to create com+ components in vs.net? /Lasse ...more >>

Does DataGridTableStyle work in ASP.net ? any time I'm tring to define a varibale lke DataGridTableStyle MyStyle = new DataGridTableStyle(); it give me "The Type or name sapce 'DataGridTableStyle 'could not be found" also I have the following at the begining of the program.. using Syst...more >>

Hi there, I'm new in c# and need to know how to get the position of the cursor in a textbox control. For example, let be the text : "My text", if the cursor position is behind the "x", then the position is 5. Thanks a lot. -- *** Ygnacio Durán *** ...more >>

hello, i want to search a text file for an occurrence of a string and replace some text after the match, then save the file. eg: if the file is: <start> Hello my name is tony, I am 22. Hello, my name is sonia, I am 18. Hello, my name is debbie, I am 8. <end> I would like to pass in...more >>

Hello group, I have a Windows Service and an application (C#). Both processes need access to a single dataset object (created and modified by the service and application will only read the dataset). I thought this was possible with ..Net remoting, but not able to figure out a way to make this po...more >>

Can anyone tell my what is wrong with this snippet of code? //Creates a UdpClient for reading incoming data. UdpClient receivingUdpClient = new UdpClient(); //Creates an IPEndPoint to record the IP Address and port number of the sender. // The IPEndPoint will allow you to read d...more >>

Hello. Does somebody know how to invoke a web service using reflection in c#? Thanks in advance -Rodrigo Meneses Pinillos ...more >>

I have a question related to allocating on the stack. In this program below, are my following assumptions true? - variable a is allocated on the heap since it's static - variable b is allocated on the stack since it's a value type variable - variable d is allocated on the stack since it's a ...more >>

I have a Data Set with parent / child related tables and wish to show the parent rows in one data grid and the child rows in another data grid. The problem is that the parent datagrid has the ability to drill down to the child records with its own grid. How can I suppress this ability. I o...more >>

Hi Everyone, The remoting NG seems to be very quiet lately, so I hope you don't mind if I ask this question here. My server application listens to client requests on a port (say 50,000). When my client remotely calls (async one-way) it remains connected to the server until it (the client) s...more >>

In the current application I'm working on I'm using floating point variables to store price information in a shopping cart. When I go to do % based discounts I make sure to round and truncate my numbers to 2 decimal points of precision. But when I go to do more arithmetic on the numbers I'm ...more >>

Hi All, I have a class by name "Participant" and it has properties such as "Id" ,"Name",Type". Type is of type enum. I am using xmlserializer to serialize. When i serialize I should get <?xml version="1.0" encoding="utf-8"?> <Participant xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:...more >>

Hi, Can anyone please tell me if it's possible to pass a System.Web.Mail.MailMessage object to a ASP.NET Web Service? Maybe using XML Serialization / Deserialization? I've been asked to investigate the possibility of building a front-end web page which captures MailMessage properties such To,...more >>

Hi, Is there a way to find to which control the current control is docked against? For example, let's say I have panel1 and panel2 docked to left within a form. The panel1 is the first one on the left and the panel2 is the second one docked against panel1. I want to be able to find out to w...more >>

I want to be able to fire event when the data source was changed The data source is data objects in array list (which does not know to notify) Is it possible to use control's functionality (e.g. DataGrid) to catch the update of data source (DG updates with add to data source) ...more >>

It seems that Microsoft always leaves out a peice of functionality that logically belongs somewhere. (I am new to this language. In the integer object there are many methods that are always needed, such as hashing, typeing, and converting into a string In the string object there are many method...more >>

Hi How to move the cursor to line 6 (or any line) in a TextBox control ? thx ...more >>

I am trying to start a process from a windows service but when the process starts the command window that the process runs in never shows. Is this because I am calling it from a windows service? Is there something else that I need to do? Here is my code: System.Diagnostics.ProcessStartInf...more >>

How do I set the color of a particular column in my C# winforms datagrid? Thanks, Dave ...more >>

Hi! I am about to create a small application that needs to process some files stored in a directory. GetFiles() returns a string array, OK, but I'm expecting to find MANY (over 150.000) files in the directory and I'm worried about getting a memory overflow, since I expect something like... 15 ...more >>

how can I send cursor to a line n in a textbox ? is there any method for that ? ...more >>

I add tow Com libraries to my project, I can see their content with intellisense, but when I instantiate a class contained in the library: PDDirectLib.PDDatabaseQuery pDbQuery = new PDDirectLib.PDDatabaseQuery(); It raises an unhandled exception "Class not registered" any idea??? ...more >>

Hi, we have some problems with the following situation: A remote application A writes files to a directory monitored by a FileSystemWatcher-instance in application B. A creates the file with the initial ending "COPY_IN_PROGRESS" and only after successful copying the file gets renamed to its f...more >>

I'm able to add a context menu to the right click on a listbox but it does not select the item in the listbox. I would like the context menu before it pops up to select the item that the mouse was over when the right click occurred. Is this possible? Thanks, Cristov...more >>

Hi, I have defined interface for COM components which inludes an argument being filled with additional error info, if such occurs. If inside I raise COM Error, I populate that parameter. In COM environment this architecture works beautifully -- caller application gets negative HRESULT and er...more >>

Whenever I use this method I get out of memory exception, even when using tiny bitmaps (100X100) Does anyone know why this is From what I remember OutOfMemory Exception is a default for other exceptions, does anyone know what it might be I am of course using try catch and finally blocks to ensure...more >>

Hi all, I've added a new DataSet (xsd file) to my project in VS.NET 2003. There I create a simple type as an enumeration of values. <xs:simpleType name="MyCustomType"> <xs:restriction base="xs:string"> <xs:enumeration value="Apple" /> <xs:enumeration value="Orange" /> </xs:rest...more >>

Hi, I have below code, to move the cursor to a specific line in a text-box control (I don't want to use RichTextBox) but doesn't work! any suggestions? int charIndex = 1; for (int i = 0; i < snpObject.edtTextBody.Lines.Length && i < iRequestedLineNumber - 1; ++i) { charIndex += snpObje...more >>

The program is written in C++ and uses dll library. I want to write plugin in C#, but inside library should be some functions ( ActionProc, etc.). How to write it? (Sorry about my english) Thanks, Winthux ...more >>

When developing C# applications in VS.NET, you get intellisense descriptions for all methods in the .NET class libraries. I've created my own .NET assembly and included /// C# documentation of all my methods, classes, etc.. The intellisense works great when this .NET assembly project is included...more >>

Hello, I use an initialized "System.IO.FileInfo" class. The properties "myFileInfo.FullName" or "myFileInfo.DirectoryName" deliver the directory with MS-DOS convention. Example: "c:\docume~1\...". How can i get the full Path. Example: "c:\documents\..." Thanks in advance, Huber...more >>

Hi All, This is what I want to do. Support I have two file name abc.txt, xyz.txt I did created md5 hash for abc.txt and store it some directory Here is how I create md5 for the abc.txt FileStream file1 = new FileStream(abc.txt, FileMode.Open, FileAccess.Read); MD5CryptoServiceProvider m...more >>

Hello: How I can know the class of some object?. Like in Object Pascal with this sentence TObject.ClassType = SomeClass? Best Regards. ...more >>

Hi, I am trying to understand the lifetime or scope of a class in this project. Here is the code that I am talking about: private void PopulateCategoryCombo() { ListItem objListItem; while (drSQL.Read()) { objListItem = new ListItem(drSQL["CategoryName"].ToStri...more >>

Hi All, We have a windows from application written in C#, there we have used Browser COM and other basic libraries present in standard .NET/C# SDK. So the next part is to make this appliaction available to Unix and Mac platform. I have couple of questions here 1. What are the possibilities ...more >>

Is it possible to use another DB instead of SQL Server? I don't have SQL Server, but I do have IIS, FP Extensions as well as MySQL and would like to use that. Is it possible? Thanks. ...more >>

Hi there; I found a sample program with serial port programming. but I don't know how to test how the program work. Can any one test it and tell me how to use it? I transmit something, but on received window, I don't have anything. how to test this program? thanks pei ...more >>

I have the task of creating a wizard type sql interface for our application. I have already built an sql/report mechanism into the app that works by just passing an sql statement through our middle tier then responding with the resultset. My next task is to create some form of wizard that enab...more >>

Does c#/.net support custom tags like j2ee does? I don't mean to start a flaming war, I'm just honestly looking to find out. From what I've seen/google'd it doesn't, so I just thought I would ask here, maybe I was missing something? And while I'm at it, does c#/.net have something similar to...more >>

I'm getting a NullReferenceException in Unknown Module when I follow the below steps to create a simple NotifyIcon app that creates the context menu on the fly(see a little analysis after the steps). 1. Create a new Windows Forms C# solution (I called mine DBChanger). 2. Replace Form1.cs code ...more >>

Hello, I am using a propertygrid to allow users to edit\create objects at runtime, that can update records in a database. There are certain properties (fields) that I wish to display as comboboxs. Currently I can create an enum, which the propertygrid displays as a combobox. However since the...more >>

Hi, As you know, all the non-ui components (like Timer control, etc.) that sit on the form are contained in its private variable 'components'. How can I enumerate such components from any form instance given to me? I have no access to the source of the given form instance, but I can impose ...more >>

Ok, newbie to .NET, C# here. I have multiple solutions/projects. How do I do a "build" across these? Also, I have some .resx files that must be converted to .resources files, and I have been unable to find a mechanism inside of the .NET build mechanism to do this. (been doing it by hand wi...more >>

Hi <..I'm useing c# asp.net, and it's webapplications..> I have a content.xml file with some content id's, and a text (fx.: <content Id = bla bla bla bla></content id> The text in content.xml is used in some tooltips. My problem is now that in some of tooltips the text from the conten...more >>

I am new to C#/.NET/DirectX, and could not find a simple example of how to read the X/Y location of the joystick. < YIKES!!! The DirectX.DirectInput is one serious pile of API! > After some futzing around, I came up with the following - which seems to work just fine. I'm looking for a sanit...more >>

Hi, I'm writing an app that needs to get the domain the machine running it belongs to. I know that you can do a Environment.UserDomainName, but this returns the domain the user has logged onto. What I have is a machine that sits on a resource domain called ***Res, and a trusted domain the ...more >>

I have an application that uses an Access db. I would like to be able to programmatically change the column names in one of the tables. I know how to get the Schema of the database but how can I change it?...more >>

Hi I have a webapplication in c# using asp.net. I have several tooltips wich gets their content from a content.xml file. My quistion is now: Can't I use AutoPopDelay, InitialDelay etc. on tooltips in a webapplication? And if I can what do I have to write? Nat....more >>

Hi, I posted this earlier in the databinding group, but that group appears to be pretty dead. Is it possible to bind a combo box to a table, but have a DisplayMember that is a concatenation of 2 fields? i.e. I have FirstName and LastName columns but want to display Firstname <space> LastNam...more >>

This is a two parte 1. What to the performance differnace between a Class and a struct. I have a handler class which has a list containing a lot of instances of a class which purely holds data, All the operations are caried out within the handler, would I be better to use a strut instead 2. I ...more >>

Which headers would exactly trigger security alert when i access a mailitem? Heard that accessing mail item using redemption will be slow and its better to read only headers that trigger security alert thru redemption. Pls let me know which headers will trigger security warning???? Anushya...more >>

I'm looking for one sample (code) , how to make that doors of cdrom (recorder, never mind) to be open on button press. thanks... ...more >>

Hi i have my XML file c:\prd.xm <?xml-stylesheet type="text/xsl" href="prd.xsl"?><products><product><a>2</a><b>3</b></product><product><a>4</a><b>2</b></product></products This is my XSL file <?xml version="1.0" encoding="windows-1255" ?><xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Tr...more >>

Hello, I want to make an array but I don't know the future size. This can be 10 but also 100 elements. How can I make an array... and just put in what I need? After that I want to loop throug my array. How can I do that? Thanks! ...more >>

Hello, I'm doing the following. IDictionaryEnumerator iter = Persons.GetEnumerator(); while ( iter.MoveNext() ) { Person person = ( Persons ) iter.Value; if ( person.SameAge( Age ) ) { Persons.Remove( person.GetHashCode() ); } } Now I get an error. The error says that I have c...more >>