hi i have the following problem: i use functions from an external dll(normal w32 unmanaged library) which takes a structure address as an argument.. how do i pass it in c#? i tried using array instead od struct and fixed statement to get a pointer, it seemed to work, but i bet there is a bett...more >>

Hi! If I create a sample application(Vs.Net, C#) (GUI or Console), and I run it, it uses about 8-10 MB-s of Ram. Then I minimize its window, and so it uses only a few hundred of kilobytes. After maximizing it again, it uses only 1-2 MB-s. (in case of console application it keeps using a few hu...more >>

Hi I want to copy a part of an Array to a structure thanks....more >>

Hi, I'm a new programmer in C# but I know C/C++ programing, I need somthing like 'union' in C#, what can I do? thanks Ali ...more >>

Is there a simple way of communication between applications I would need to send or receive some data from time to time? ...more >>

Hey all... I posted this in the vs.net ide group too, but people are not answering, so I figured that it might be more appropriate here. I'm not sure if I'm adding a designer to my code properly. I'm only adding it to the tree node, where each custom tree node is then added to a normal tree contro...more >>

Hi, does anyone know how to set up a form with a treeview aligned left with a monthcalendar control beneath it and have it resize corrctly, so that the month sticks to the bottom of the form and the treeview fills the area above -- always? ...more >>

Hi there, I have tried to run some samples without succes. So I have made a new sample. Maybe someone can fix the serialization? The class "MyProgram" must be saved to an xml file and placed back in the program with the "open" call. Hope someone can do something for me. Thanks, Arjen ...more >>

I come from Java and an Object would be the class whist object would likly be the varible to an object. I get the impression with C# that object is just an alias to the Base Class Object. Can anyone enlighten me as to any differences and by convention if I had a method that returns an objec...more >>

Hello, using openfiledialog, how can I retrieve the path ? thx ...more >>

How can I catch the event of AfterLoad of the form? I want to do something AFTER the form loaded and shown to user, how to do this? ...more >>

Hi, all! Anyone help me please generate a DataSet from Xml above. When I try execute ds.InfernXmlSchema("test.xml", new string[] {"http://schemas.xmlsoap.org/wsdl/soap/"}) then I get message: table "binding" already exists. Can anyone help me? My test.xml file begin here: <?xml versio...more >>

What c# method (classes) is similar to javascript : encodeURI(), decodeURI() and escape(), unescape(); Thx, ...more >>

Hi Group, long story short: 1- What namespace or class should I use to let me open an XML file and then put its content in a TextBox which is assumed as an editor ? ( Then I need to do some search process on some tokens within it) 2 - Also, I need to know which class is better to be used....more >>

All, I am wondering if there is a way to invoke a method from a string? Any pointers in the right direction would be appreciated. string s = "someMethod"; invoke(s); thanks, Vince...more >>

I am using VS.Net 2003 on Windows 2003 Server (standard edition) and I am getting "The process cannot access the file because it is being used by another process" on DLL's in a VS.Net solution. I have made sure all the dependancies and the build order is correct but the actually instance of VS...more >>

Ok here's some example input data... (asciiVersion 3 0) my current regex string will make this out of that: ( asciiVersion 3 0) the problem is that last item... the 0 and ) need to be seperate. This is my current regex string: [^\\s]*(\\))|(\\()|(\".*\")|([^\\s]*) Anyone have...more >>

I am being supplied a count of number of seconds since Jan 1st 1970, i.e. a Unix system time. How can I convert this into a valid .Net DateTime object ? thanks, Mark WinXP / C#.Net 2003 ...more >>

Hi, do in .NET the possibility exists, to obtain a collection of all instantiated forms? Can anythink help me? Thanks in advance, Hubert ...more >>

Hi We have started to work on xtragrid V3 evaluation , and then we bought the ful version (which is V4). So we uninstalled the free version and installed the v4. But with this new version we're unable to use the grids in our current project : they can't be dropped on forms, and existing grid...more >>

Hello, When debugging a SQL sproc in VS.NET, is there a way to get the debugger to retrieve the full value of a SQL variable if its content is longer than 256 characters? I currently have a SQL variable of type TEXT, its content is roughly 1000 characters. When stepping through the sproc in...more >>

I'm having trouble getting the settings out of my app.config file in a c# project. I have put the file in the root of the project and in the bin output directory with the name "app.config" and "<dllname>.dll.config" with no luck. Every time I try to read from the config file I get the following ...more >>

Please I have downladed skmMenu source code for ASP.NET application and I have made skmmenu.dll and I got menu control. After that I put menu control on my webform, do some design changes and then I start my application. After that it throws me this error in browser Could not find any resources ...more >>

I have a DataSet that bound to controls on multiple forms. Currently an instance is created on each form and Load / Write is handled on each form. Instead I would like to have a single instance DataSet that is accessed and maintained by Data Access Object (DAO) and I would like that DataSet ...more >>

Dear Group, is there any way to popup a MessageBox with a default choice (say OK) then after 1 minute if user do nothing then OK is pressed? TIA L.Peter ...more >>

Thanks, Andy ...more >>

Hi Most example code I've seen uses the code "\n" to perform a CRLF, and this seems to work fine in most instances, although I've just tried to issue it over a TcpClient and it appears to just perform a LF. Is there another control char for CR If not, what's the best way to issue a CRLF over a ...more >>

Hi all! I am a total newbie on this stuff and I am probably asking for an answer for very stupid (simple) problem. Well.. I would like to write a C# application that checks URLs where user go/surf by using IE. I found on the internet how to do that by launching own instance of IE (new Inte...more >>

I am trying to code for a compound conditional in the DataView.RowFilter but don't quite no how to do the correct syntax for this. The following code sample chokes on dv.RowFilter: int batchid = 123456; int segment = 3; DataView dv = new DataView(ds.taxBatch); dv.RowFilter = "BatchID = "...more >>

Hi All, Is it possible to disable the datagrid refresh while changing the datasource properties, basically im renaming columns in the background and sometime it gets crazy to see datagrid columns changing width as they are renamed. Instead i would like to perform the rename operation ...more >>

I have a string which contains some xml text (either in one long line or split into one line per data element), eg. "<tag1>some data</tag1><tag2>some more data</tag2>" or "<tag1>some data</tag1> (embedded \n character) <tag2>some more data</tag2>"...more >>

I'm using the following two segments of code on ASPX pages with Datalists. The following segment of code produces the error "Object reference not set to an instance of an object." Label lblPhone = (Label)(e.Item.FindControl("lblPhone")); if (lblPhone.Text.Length > 0) lblPhone.Text = string....more >>

If I dont specify the [Flags] attribute on an enum to be used as a bitfield declared as 0,1,2,4,8... and so on, and use it as one normally would with | and & operators, would it behave differently? ...more >>

Hi All I'm trying to import this SDK function in C# but it fails. Here is the code I'm using ... [DllImport("WinInet.dll", CharSet = CharSet.Auto) private static extern bool InternetGetLastResponseInfo [Out] int Error, [MarshalAs(UnmanagedType.LPTStr)] [Out] string sBuffer, [Out] int nBuffer...more >>

A feature that I find signficantly missing in C# is the ability to write functions in interfaces that can call other functions of the interface. Given an interface ISomeInteface the only way we can write a general purpose function to operate on all objects which implement that interface is throug...more >>

If I have a string that is in a constant format of, say 0154321-001, how can I parse this into two fragments: int contractid = 0154321; int contractseq = 001; ...more >>

Hi all, I'm rather new to C# so please forgive my ignorance. I'd like to list the public, non-inherited methods of a class. I thought MethodInfo[] mi = typeof(string).GetMethods( BindingFlags.Public | BindingFlags.DeclaredOnly); would do just that, but no methods at all...more >>

I'm an absolute newb to P/Invoke, and got stuck on this little thing, what would be the correct P/Invoke syntax to import the following dll function NTSTATUS TdiRegisterProvider IN PUNICODE_STRING ProviderName OUT HANDLE *ProviderHandle ) definition of the data types used are typed...more >>

Hi, I have a windows form with a TabControl on it. It has 3 tabpages on it. I have also coded a button that is supposed to 'add' a new tabpage. The code in that clicked event looks like this: tabPage tpNew = new TabPage("TabPage4"); this.tabControl1.TabPages.Add(tpNew); tpNew.Controls.Ad...more >>

Hi. When I use VB.NET projects, Visual Studio refreshes the display when I correct errors. (i.e. removes the blue and red lines under syntax errors etc.) But when I use C# projects, the display doesn't refresh until I do a build, or a "View in browser". Can anyone help or have advice? This i...more >>

Just a query to see if anyone can tell me. Which is the quicker/best way of a handling Type-Safe collections/Dictionaries? 1) Create a Custom Collection/Dictionary derived from CollectionBase/DictionaryBase and implement as necessary - including Type-Safe methods. or - the lazier 2) Crea...more >>

Hi, I am trying to find text in a window. I can get the handle to the window but when I try using SendMessage the return value is very large number. When I use Spy++ to see the return value it is FFFFFFFF. I don't think SendMessage is working correctly to find the text. Can somebody help me o...more >>

I'm trying to use MeasureString() to determine the length in pixels of a string However to do I need a System.Drawing.Graphics object to do this I need to create a System.Drawing.Graphics object for which there is only two constructors System.Drawing.Graphics.FromHdc and System....more >>

Hello all; I'm looking at creating a custom nonvisual component (like the SQLConnection control, for example). I would like to do one thing with this control which is a little more complex. With the SQLConnection , after you drag it over to the form and the icon appears in the bar below, y...more >>

How do I loop through a collection of controls testing to see if a certain control type already exists in the collection. //this doesn't work foreach(System.Windows.Forms.Control aControl in StudyViewer_Fill_Panel.Controls) { if (typeof(aControl) == typeof(TestControl)) { ...more >>

Hallo. I started a solution in VS.NET with template for C# windwos application. The solution has several projects: -Artifacts -BusinessRules -Client -ErrorLog -Standardization .... ... .. When application is stared you can see only one form with 4 userControls included on it. Each user co...more >>

We just recently moved one of our major c# apps from VS Net 2002 to VS Net 2003. At first things were looking ok, now problems are starting to appear. So far ... (1) ComboBox.SelectedValue = db_value; If the db_value was not included in the ComboBox value list the ComboBox.SelectedIn...more >>

I need a little help to build a setup project that will install the app as well as deploy support files where the support files are contained in hundreds of sub-folders. My first thought was to compress the folder structure and then uncompress this as a custom action. But, I can't guarantee th...more >>

I am teaching C# to my 11 year old child. One challenge is that all the C# books I own and that I have seen in bookstores are full of language that is not easily comprehended by a student at that age. Can anyone recommend books (or perhaps websites) tuned for younger audiences? BTW, its amaz...more >>

Hi All, I wuld like to know if there is any possibility of sharing a common class between different applications. i.e. if the two applications are running, they can share the class, and changes made to class from one application should be visible in the other application. Thanks in advance...more >>

Hi, I used to use CopyTo() method from FileInfo class, does anyone know if there is a way to bind this with progressbar, or with some sort of paintBox - to show progress of moving/coping file ? -- best regards Stic ...more >>

I am trying to close my application using Application.exit() in the frmMain_Closing event. When the form closes the process does not. My application only has one form (no other classes either). The form has a really long loop which generates approx. 700 .csv files. I do not create any threads...more >>

Hello All, There is a particular feature which I want to have in visual studio .net suppose I create a class ClassA { private string name; private int age; } Then I right click on my code and say "generate properties". And a property gets created (with capital for the first char...more >>

I have set a node in a treeview to bold, and of course, the POS has clipped it. Does anyone know how to expand the node width so all the text will be displayed? I am seriously disappointed in this thing. Trees used to be fairly easy. This TreeView thing has been lobotomized. Neil ...more >>

Hello, I need to use Csharp compiler and an interpretor. In my application user will use the application and application will write CSharp code on backend. But now i don't need to reinvent the wheel, just need to know how i can give user an option to build the project which will compile and ma...more >>

I am looking for a way to read an Image from SQL directly to a new Image or Placeholder. I have not been able to find any examples other than Response.OutputStream.Write or similar. Thanks for any help Brian K. Williams ...more >>

hello i want to create setup of project in vc#. how to do it. -- With regards, Gangani Kanaiya. ...more >>

Why does the following cause an EntryPointNotFoundException when I do ExitWindows(0,0); ? >>>>>>>>>>>>>> [DllImport("user32.dll", CharSet=CharSet.Auto)] static extern bool ExitWindows(ulong dwReserved, uint uReserved); <<<<<<<<<<<<<<<<<< ...more >>

I'm trying to set a value in the registry in order to configure IE so that it uses a proxy I found out that there are two values: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnabled HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet ...more >>

Hi, Can anyone point me in the right direction for using C# to close an alertbox for the admin user? Background: We have some servers (NT4) that are running some services that throw an alertbox error every now and then. Now, once the alertbox 'OK' is clicked, the services restart and contin...more >>

Hi all, I have developed an app in C# and am getting ready to sell it. I am trying to find metrics for how many service and support calls I should allow under the monthly service agreement. While I know this is totally off topic I am wondering if there are any seasoned software people here w...more >>

I am trying to use XmlSerializer to serial an object into a String that I can manipulate. It seems that all the XmlSerializer only works with Streams. Does someone have a snippet of code that allows me to use XmlSerializer that I can get a "String" value back. Thanks for the Help. ...more >>

Hi, I'm working with .NET Remoting. I have a problem unregistering the server channel when I try to reuse it closing and reopening it in the same application. The second time I try to get an instance of the same channel it returns an exception with socket code 10048 (already in use). M...more >>

I am trying to populate a label on a web form Let’s say I have the following select statement “Select Wonum, Location, Priority, Equipment from Workorder†I have the following labels on the WebForm wonumLabel, locationLabel, priorityLabel, equipmentLa...more >>

Is there any method in .NET that returns the number of seconds since januaty 1st 1970 (unix time) or i should create my own?...more >>

Hello, If you copy the source code from this post into seperate files as stated, and compile the code. Now to reproduce run the code in debug. 1. Press the Client button. 2. Put the cursor on to the Textbox. 3. Press Alt-X and you will see nothing happens. Now press the Exit button and ...more >>

Hello all, I'm using below code for c# app to call another app { System.Diagnostics.Process proc = new System.Diagnostics.Process(); proc Enable.RaisingEvents=false; proc StartInfo.Filename="anotherapp.exe" ; proc StartInfor.Arguments="1234"; proc Start(); } I'm able to call up anothea...more >>

Hi all,i am a newbie in C#. I need to use pointer to a class and strcuture that i have defined in C# so that i call pass their memory address to some function called from Win32 dll (Platform Invoke)? How can i do that? Thanks very much...more >>

i am the beginning of Csharp. i develop a web application now, i have a class to store data. Because it is web application, i only want one user have one data store class,dont want share the data class and overwrite by other client. Have any suggestion to me? thx...more >>

I created the .exe using CodeDom and writing a batch file which then compiled the .cs into a windows form application. The forms application is a CARBON COPY of the standard windows form template that you get when starting a new Form App in VS. When the .exe runs a commnd prompt/dos-like window ap...more >>

Here is the CodeDom code for the standard Dispose method of a windows form application. The problem I have is with the Attributes property, it isn't a collection so only one attribute can be assigned to it. I would like to set the attributes protected AND override but I can only set one, if I set ...more >>

Hello, i want to parse some html with regex and have the following problem: --- html to parse start --- some text <span class="x"> some text with linebreaks and tabs and <b>tags <i>in it</i> goes here </span> another text --- html to parse end --- Now my quest...more >>

I am creating an executable using CodeDom. Once the file is written, a batch file is built and runs that compiles the .cs file into an exe. Everything is fine (well almost, i'm posting twice), but when I run the exe a command prompt/dos like window pops up as well as the form. The file i'm runnin...more >>

Hi, I was trying to change an example for SQL Server to work with Access db to insert image data. I have everything working except getting the OleDbParameter type for the image column. The table in access is : img ( id number , name Text, img number [Byte] ); code : =========== /...more >>

Any hint for this error? It appears while trying to read a config file. Error loading XML file c:\windows\microsoft.net\framework\v1.0.3705\Config\machine.config Request for the permission of type System.Security.Permissions.StrongNameIdentityPermission, mscorlib, Version=1.0.3300.0, Cultu...more >>