Hello Came to know about this place by a friend, looking forward to share my experience with all of you ALI RAZA SHAIKH MCAD.Net www.programmersparadise.cjb.net alirazashaikh.blogspot.com ...more >>

how can I view only one exec copy of my application? double click app icon-> open-> again double click app icon-> i need to check it already running not to open it again. regards...more >>

Hi Guys, Im trying to pass a string from a C++ DLL back into a C# application. In the C++ DLL the string is a char array, static char myArray [2048]; extern "C" __declspec(dllexport) char *getMyString (void) { sprintf (myArray, "the string I want"); ...more >>

hi all I am having application in c# which is using dataview. my problem is i have one global dataview which i can use through the application. I am creating 2 threads in which i am setting rowfilter property of this global view. My question is when i am starting 2 threads at the same time the...more >>

Can Visual Studio 2005 compile Apps to .NET 1.1 ? Thanks...more >>

I'm trying to write a log which save each time internet explorer is opened or closed and all of the url which where visited? Any help is greatly appreciated. ...more >>

Hi, i am getting an error when trying to deserialize and xml. the error is shown below. i get this error regardless if i try to desearialize in C# or VB. the XML itself does infact contain a top level "PDocument" note which contains an xmlns namespace and some other attriute. is the error be...more >>

Hi All I don't know anything about C# and I'm planning to learn the language. Does anyone know any good book out there that explains things well? Any suggestion is greatly appreciated Regards, Sam ...more >>

I'm nearly done writing the first version of my tracking app and I'm starting to re-think the way I store my database. Currently I have my database setup as an xml dataset. Before I started the program I choose to go with a dataset because I was unclear if the end user would have to have a...more >>

Hi! I'm trying to create in-memory assemblies from source using C# 2.0 from Visual Studio 2005 Beta 2. The generated assembly should have the same name as an assembly that may already exist on disk in the same directory the assembly-generating executable is running from. The code I'm using ...more >>

Hi. I would like to create numericupdown control that's value is time in format 12:12. Is this posible? Value property contains only decimal. PK ...more >>

There's a utility application I have that generates Excel files for the end users that 99% of the time works just fine. The problem I've encountered is when placing a lot of data (and by a lot I mean creating 90+ tabs and filling each worksheet with 4-5,000 values with misc formatting per shee...more >>

I have a string of 20 characters. I would like to replace all the letters, between the 3rd and 17th letters, with a Z. Is there a function for this? Thanks...more >>

Is there a separate ASP.NET newsgroup? I can't find one, and I don't know if it's appropriate here, but I figure it's still written in C# so it's all the same thing anyway. I'm just wondering how I might write something that inserts a "Home" icon wherever I put the code. In other words, ins...more >>

Just wondering what it would take to call a static method in a static class of an ASP.NET 1.1 Web app from a different application. Specifically, I have a little "utility application" (C# Windows desktop application) that I have on my Web server. All of the ASP.NET Web applications on the s...more >>

Hi, Hope someone can help me out with this. I have a CC3 sharp app that needs to export data to an excel file. Problem is the version of excel can be 97 to 2003. Anyway, have been able to use InvokeMember for ranges and values, ie: Parameters = new Object[2]; Parameters[0] = "C2:C6";...more >>

How can i do this? i have the following in a config file: name="id" type="int32" can i create a variable called "id" as type int32? ...more >>

Hello I 'm writting a code in C# I'd like to make a COM+ component that uses mappoint library If I add reference to my project it doesnt compile - compiler complains that interop.Mappoint has not strong name. What should I do, or maybe should I use DLLimport instead? Thanx for replies...more >>

I'm using CreateInstanceAndUnwrap as follows: object myinstance = myAppDomain.CreateInstanceAndUnwrap("LibraryFile", "LibraryFileNamespace.LibraryFileClass", true, 0, null, null, null, null, null); to get an instance of the LibraryFileClass so I can call a function in this class, and I get...more >>

in .NET 2.0 where is the type Message located ? in .NET 1.1 it was System.Messaging.Message ...more >>

Hi All, I have a small driver console app which calls an assembly (static referencing). This assembly uses a configuration file for initializing certain values..Surprisingly when my driver app calls this assembly and I step into it I see that the configuration values are returning null.... The c...more >>

How to get "Key press" event when i'm working with DataGrid (winforms). Seems to me that standard events "KeyUp, KeyPress" are ignored :-( Thank you ...more >>

when working with ASP, I was able to use control statement loops such as "While myvar.EOF" , "Do Until myvar.EOF" , in which I would loop thru a recordset until the particular field in a database table had exhausted all its entries for that query. I need to do something similar in C#, whereas I ...more >>

Hi I have a number of TIF files. I need to have a way to get the number of pages in each file programmatically. Anyone know a control or app that I can call to do this? Thanks in advance. Greg ...more >>

Any idea when the final release of VS 2005 will be available to MSDN subscribers? I had heard it would be available before the official Nov 7th release date. TIA, Mike Rodriguez ...more >>

Hi all, I just got an unhandled exception of type MissingManifestResourceException but do not know what it means. I declare a class before the main form, and within the namespace. can someone help? Thanks in advance, Carlos. ...more >>

I've scanned through the various methods of the 'File' library but can't see any method that would be equivalent to the DOS "COMP" command. Is there, in fact, a simple method to do this or do I have to write my own? -- Robert W. Vancouver, BC www.mwtech.com ...more >>

I am trying to access the data with in a wav file. I am testing with very small files in order to keep the code simple to start with. Basically, im writing the entire wav file to a byte[] using a fileStream. The problem is that when reading back the data word by word and printing the resul...more >>

PRB - HttpWebRequest does not work with CGI websites and/or RAW data Please help, I'm trying to make a web deploying UserControl that gets RAW binary data that is dynamically created from a CGI application webiste, and have the UserControl write the data down to a file. I've used the code ...more >>

Hi all. I've done some websearching, and haven't been able to find my question answered, so I thought I'd post. I apologize if this has already been answered. My question seems to be a variation of a FAQ. I'm writing a small online game (client/server). The server spits out a steam of da...more >>

In C#: How do I construct an IntPtr object to point to an instance of a class, pass it somewhere, then reference it once again as the original object.? My specific implementation is to use PostMessage to pass my class instance as the "lParam" of the message. Thanks in advance. Valerie Ho...more >>

I developed a c# application and took it to a client site. After the initial run. When ever you double click the icon, it give the following error "Not a win32 application". I will copy another one to the place and after the initial run it will do the same. In one case I reinstalled the ...more >>

Can an application be created using C# and MFC? Can I use ActiveX objects created with MFC in a C# app?...more >>

Hi all, Is there any class in .NET 1.x that will help me set file & folder permissions for a user? Aka - I would like to do the in code equivalent of right clicking a folder in file explorer and granting read/write access to a specific user {not the user running the program}. Any ideas?...more >>

I have a need to unload an assembly (like exit it out) and then re-open that same executable. How can i do this? ...more >>

I have an object with events that are subscribed to, from different threads. My code currently looks like this: private event MyEventHandler myEvent = null; public event MyEventHandler MyEvent { add {myEvent += value;} remove {myEvent -= value;} } FIRST QUESTION: Do I need to lock in th...more >>

I have just started a project that's going to do very heavy credit card processing through asp.net and i had some questions. I've never really done any cc processing through code and I wasn't sure where to get started. Can anyone suggest a particular gateway or cc processor? I saw a component ...more >>

I have work being done in worker threads and I trigger an event, that gui objects have subscribed to, when the work is complete. Will that event handler code be executed in the ui thread or the worker thread? What I am trying to do is process the data in a thread and use an event to update...more >>

Hey, I'm relatively new to C# and ASP.NET, but have been doing OK. I'm trying to understand why I can't do this kind of thing to execute a function if and only if it's defined. Is there another way to do that? try { FormPostBack(); } catch { } Many thanks, Rob...more >>

fter creating a Office prj in C# this error appears is the wordDoc is oppened, if the prj is compiled and runed from the IDE the WORD is opening and after a nanosec it closes. How can I fix this. I have installed them in the folowing order: 1.VS Arhitect 2003 2.Office2003PRO(FULL, and I mean F...more >>

I am kinda new to the whole distribution process. I several programs that I am writing that use common .NET DLLs. I want each program to use the same DLLs in a "COMMON" folder. How do I get the released build to reference those DLLs? The debug version works fine (within the VS Environment)...more >>

i have a need to load image from URL. the image is really small (gif) and i use the following code. but the code is too slow any1 have any alternative way(S)? here is the url http://phone.avioninc.com/asterisk/wami/graphics/phoneringing.gif -----here is the performance counter out put when ...more >>

Hi all, I am familiar with passing parameters to a thread function using C++, but I needt to learn it using C#. Can someone shed some light on how to do this? Code snippets will be great to show me. Thanks in advance, Carlos ...more >>

hi... i have a design as follows... Presentation Layer (.aspx, .cs) -- Service Layer (just a facade) -- Business Layer (business objects) -- Data Layer (all DB related things for business objects are done here) -- Data Access Application Blocks -- DataBase No we pass objects and not da...more >>

I have a class with a private Int32 data member that gets modified from multiple background threads. To synchronize these modifications I use the lock statement: Int32 count = 0; object countLock = new object(); .... lock (countLock) count++; .... lock(countLock) count = newValue; ...more >>

Hi, I can't figure out how to set multiple items in a ListBox to selected when the listbox is in a User Control. When the ListBox is set in directly into a form I can use the following: listbox.SelectionMode = SelectionMode.MultiExtended; listbox.SelectedIndex = 1; listbox.SelectedIndex =...more >>

Is there a way to have the non-selectable dates (those before MinDate and after MaxDate) draw differently so my users can see right away what dates aren't allowed? I'm not seeing it... Otherwise, anyone know of a cheap 3rd party calendar control I could use that would provide that ability? ...more >>

Hi, I'm getting a 'Type mismatch' exception when calling the Word.Application.Documents.Open method when using the Office XP 2003 PIAs. the actual error is: System.Runtime.InteropServices.COMException (0x80020005): Type mismatch. This method works when using the Office XP PIAs (not that ...more >>

Hello, I'm trying to deserialize my objects (which derive from CollectionBase) using the special constructor. Everything works fine until I go to set the value. I get the following error: "Object type cannot be converted to target type." The property Value of newField = 'ArrayList' and va...more >>

Hi, What is the equivalent code in C# of these 2 statements in C++. GETRANDOM(min,max)((rand()%(int)(((max)+1)-(min)))+(min)); // C++ code srand( (unsigned)time( NULL ) ); // C++ code TIA Roy ...more >>

Relatively new to dotnet so bear with me if this is obvious. In the course of my career, I've assembled a collection of icons to use with my apps. Most of these are 32x32, 256 or 16x16, 16. In VS6, I could assign the same icon to forms and the application. VS would squish or stretch icons ...more >>

ERR - WebClient.DownloadData returns "protocol violation" Please help, I'm getting a "protocol violation" from a site that is working perfectly fine when I issue WebClient.DownloadData as such: WebClient WebClient_Temp = new WebClient(); byte[] zbyteTemp = WebClient_Temp....more >>

Is there a cure for the problems using databinding with a DateTimePicker? I find that a) sometimes it works, sometimes it doesn't, and b) it fails silently causing all databinding on the DataSet to fail with a error message. Help!...more >>

I am working with a window application which will run on every computer on a network. but data will be only one machine on network. i am giving in connection string like.. connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\Inetpub\\wwwroot\\project\\combo.mdb"; it i...more >>

Hi, My connection string in my web application to my oracle database is working fine when i test it on my machine.. But when i try to run the application on the web server the error ORA-12154: TNS:could not resolve service name appears. Here it is the connection string: string ConnectionSt...more >>

Hi Is this possible and how: To create a function in c# (in dll) and import this method in sql where I can use it. For example I want method like this: string MyMethod(string s, int i). I use VS 2003 and sql server 2000 Thanks. ...more >>

All, I am trying to create a crawler to go out to a site, collect information and store it. While I have addressed a lot of the issues in the collection of the information I am stuck on one particular issue. It apears that a page posts back to itself to move to the next result set. Th...more >>

hi, I have a application that works with some dialog forms, the problem is, when I have a dialog open and I press alt + tab the application icon does not appear.... What is happening?...more >>

Hi, How do I get an HWND for an aspx page? like System.Windows.Forms.Form.ActiveForm.Handle.ToInt32() in Windows Forms. If anybody knows solution please let me know it. Thanks, Vinoth ...more >>

hi, I am looking to use the date/time picker control to allow the user to select a time. I have done a similar thing in a C++ project by formating the date time picker to show only the time and then using a spinner control as a buddy control to allow the user to cycle through the hour/mi...more >>

Hi! I want to change and setup Properties of the Indexing service catalogs programatically. Generation property, abstraction property and any other property of catalogs should b ealtered from my code. I use C#.net . Could any one of m etell how I can achieve this. I am OK with programinatical...more >>

Hi, I have one Listbox and Two buttons one is Add and Other is Remove. When i click the add button i want to show the Select Users or Groups Form(i.e, When you right click any file or folder and click Properties and then Go to Seurity Tab and Click Add Button. Now it will show the Select ...more >>

I'm trying to take some data from an Excel spreadsheet, put it into a dataset, and then update a SQL table with the data. I'm not 100% sure I'm doing this right, can somebody tell me what I'm doing wrong? The error I'm getting is 'uninstallable ISAM', so I think the error is to do with the con...more >>

Hello! Posted a few questions here as I have the Beta of 2005 (VS) and think C# is amazing. I'm a Delphi developer of 6 years, but desperate to cross over to C#. Anyone know of: 1. A company in Scotland (Closer to Edinburgh) that would take on a developer and X-Train ? 2. A way to get i...more >>

Hello all, I am using the WebBrowser control to browse a webpage containing frames = and am having difficulties accessing the 'frames' property of a document = object. Bellow is my code and the error recieved: webAccess.Navigate(URL); // Wait until document is loaded. This part DOES work ...more >>

Hi, I have no problems in double_clicking on the ListView Item, however, the double_clicking seems doing nothing on the SubItems, and the subitems can't be high lighted. I am wondering what have I done wrong. Any help will be appreciated. Jason ...more >>

How can change the bounds of the client area of a control ? =20 In fact I would like to have a Panel with Raised borders. I can draw the = raised borders but they disappears as soon as I put control inside with = it's Dock property set to DockStyle.Fill. =20 I tried using the "Set...more >>

I set a tooltip to a button. using SetToolTip method.in Form_Load function. When I mouse over the button tooltip is comming perfectly. But When I click the button and mouse over the button , tooltip is not comming. Regards kiran ...more >>

Does anybody where I can find the value of "Windows Messages" ?=20 In the example below I would like to know the meaning of the "msg.Msg" = parameter; if Msg =3D 134 what is that kind of message ? 134 =3D = WM_????? protected override void WndProc(ref Message msg ) { MessageBox.Show(...more >>

Hi all, I am developing the application for send emailing list, actually, i can perform to send a email 1 by 1 and do it on aspx page. I have a enquiry that how can the application change to background task instead of user need to wait and wait until all email sent. Also, when user waiting ...more >>

Hello all, I'm a new programmer in C#, and I have some problems with Microsoft C#.NET. So I would like all of you to help me for the following problem that I meet: How can I change font to Cambodian language(Khmer) of Main Menu, Message Box, Form Title in Microsoft C#.NET? I look forwar...more >>