I'm coming from Delphi where I have to explicitly create and destroy instances of objects. I've been working through a C#/ASP.NET book, and many of the examples repeat the same SqlConnection, SqlDataAdapter etc. objects, so I thought I'd create a class with a bunch of factory methods to create m...more >>

Hello, I have an application that uses an access database that is stored in my computer. I would like to set up a OpenFileDialog object to be able to select the source of this database (i.e. c:\database.mdb). If I move the database to another location I would like to change the path to that other...more >>

Hi All Can someone tell me if I am doing this correctly, or can possibly suggest better ways, if I'm not doing this correctly. I have a windows application that I am writing,So I have a UI and I have another class that handles the inserts,updates etc to a specific table/s in the database,(I a...more >>

Hi, I am trying for word 2000 automation with c#. There I want to get all custom document property of the document as follows: Microsoft.Office.Core.DocumentProperties props = (Microsoft.Office.Core.DocumentProperties)aDoc.CustomDocumentProperties; (where aDoc is active Word document). But t...more >>

Hi, how can I create multiple new file handles of a file without having to share to file to the other processes? I have a file that will be accessed by multiple threads in my application, each time a thread try to do something with the file, the thread will create a new file handle. However, if...more >>

I am trying to create a new user control. Is there anyway I can make the control itself transparent but still display the oval I plan to draw on it? Please help!! Thanks, Mike ...more >>

hi i want my c# program to do the following: 1)read cdr serial number(does every cd have its unique serial/id number?) 2)read cdr capacity 3)read cdr producer/writing strategy/dye (this is enclosed in ATIP i guess) 4)free space how can i implement it? i started writing winaspi wrapper but may...more >>

Hello, I'm developing an application, which is free for non-commercial use but I would like to be able to show something to the paid users that the software belong to them. What is the easiest way for me to do this? I'm thinking a simple hash of the user's name and company name will result to ...more >>

Hi folks, I want to write an aspx page that doesn't output text/html, but an image (such as image/jpeg). What type do I have to choose in MSVS.NET and what are the basic steps? Is there any tutorial on the web? thnx, regards, Tom...more >>

Dear All, I want to use web form to upload my file and copy the file to another machine. I can upload the file, but when I copy the file(file.CopyTo(".....", true)) to another machine(map network driver), it failed(error message : login failed......). So.... how should I do if I want the u...more >>

Is it possible to set a command button to the "default" button of the form? Here's an example of what I mean -- press Start -> Run. Notice that the "OK" button has a dark rectangle around it, and when you press ENTER, this "OK" button's Click event handler is eventually fired. I was expect...more >>

I think I've finally figured out MS's C# strategy. C# is now an ECMA/ISO standard. However, that's only true of the current incarnation. The next version, Whidbey, is not. http://msdn.microsoft.com/vcsharp/default.aspx?pull=/library/en-us/dv_vstechart/html/whidbey_csharp_preview.asp So th...more >>

I'd like to loop through selected datagrid rows and extract specified columns from those rows. How would I do that? Thanks... Dan ...more >>

Hi, I try to change some printer settings using the win32 api OpenPrinter, GetPrinter and SetPrinter. I copied most of the code from this or related newsgroups. However, OpenPrinter, GetPrinter and ClosePrinter works so far but I cannot change the printer settings. SetPrinter returns the erro...more >>

hello any free library for video capturing through any device and any capturing card. -- With regards, Gangani Kanaiya. ...more >>

I have a function that I can't seem to get to work properly. This function is suppose to loop through a collection of controls and locate an existing ojbect of that type. if it locates the control it uses that object if it does not a new object is added. public void SetMainControl(System.Win...more >>

Hi All, my errMsg string never gets initialized when there is an exception. Can someone explain me why? Thanks string errMsg=null; try { MyFunction(); } catch(Exception e) { throw new Exception("Failed in MyFunction",e.InnerException); errMsg="Some error: } return err...more >>

Hi all How can i change the status bar icon for my website Or The icon shown in user's Task Manager for the browser process fetching my website Thanks in Advance Alic ...more >>

I'm new to csharp and in other languages I used I have had a standard set of useful function like QuoteString DeQuoteString which are used all over the place. Creating a class everything I want to use it seems like lots of extra typing. The options I see are (Some may not be possible) 1. Crea...more >>

Is there any way to stop a form from ever becoming the Active Form in an application? Thank you, Laszlo ...more >>

Hi guys, Does anybody know a good book which talks about XML, C# and parsing, searching issues in an XML file? Thanks ...more >>

Hi, Can anybody help me find an asp.net forum in c# that is totaly free, simple, easy, use sql server, only one projectfile with code behind and supports the older version of visual studio.net. I have tested about 8 different versions now and i'm still searching. Yours sincerely Andla *...more >>

I have added a 'Textboxes (A)' to my UI installer project along with a custom action to pass the value back to a class I've written to override the void Install function. As long as the text is very simple everything is working just fine. I've tested it by writing the string out to a text file ...more >>

Not sure who to ask about this so, I have an app that grabs data from flat file and populates a dataset with it. Then using update method of a DataAdapter I insert all that data in to the SQL Server table. I have a separate app, console app for now, that monitors queue table and starts my other...more >>

A colleague has just showed me the [,] syntax that introduces multidimensional arrays (as opposed to jagged arrays, which are similar to C++ arrays). So we defined such an array: int[,] a= new [,]{{1,2},{3,4},{5,6}} wonderful syntax, especially since "new" is used only once. Anyhow, we w...more >>

Hello co-developers, I have been wandering the internet just looking for info on what attributes there are and where you can use them for. I thought this was a very simple query but as it seems there's not mhuch to find, unless you know what attribute you want to use. I know now how to make my...more >>

Does this exist in the.net framework ? I can't find it. I could find SMTP, though. If it doesn't, could anybody recommend a component suite that includes smtp, pop, nntp ? But mainly, that does include nntp. Thanks, ...more >>

Hi, I'm trying to access fields that are local to a method using reflection. What BindingFlags value should I use and is this possible at all. So far I was able to retreive class fields only. Thanks ...more >>

Hi all, I am simply trying to do a transform to a base 64 string and back, but for some reason, the FromBase64Transform is return less bytes than it should. I have verified that the base64 string is the same length as the one that was output from ToBase64Transform. I also turned on DoNotIgno...more >>

Hello, How can I remove an item from an array? for ( int i = 0; i < myArray.Length; i++ ) { if ( myArray[i].Status == "yes" ) { // Delete from array } } Thanks! Arjen ...more >>

Hello I have created MessageQueue called Req_MSMQ and have a PeekCompleted event added as follow Req_MSMQ.PeekCompleted += new PeekCompletedEventHandler(OnRequestPeeked) Req_MSMQ.BeginPeek() When I destroy this object (Req_MSMQ) as follow, It doesn't clean up Memory properly. Req_MSMQ.P...more >>

Hi When I try to create ASP.NET Web Application I get error :HTTP/1.1 500 Internal Server Error I tried aspnet_regiis -i it doesnt work. What Can I do? Thanks ...more >>

hello how to mak complete setup so any dependencies and dll which we have used are put in set file. -- With regards, Gangani Kanaiya. ...more >>

I understand the conditions where you have to use base., but does it make any sense to use it elsewhere to make clear to the reader that the method or property you refer to comes from the base class? Or, would you find such code insulting or clutter since you're smart enough to see that the clas...more >>

I understand the basics of finalization and implementing IDisposable and how one is guaranteed access to managed objects only when working through the IDisposable interface. My question is to what extent can I rely on access to my private data during the finalization process when *not* coming thr...more >>

We created a Windows Service with C#. The service will start OK on computers that are a member of a domain, but when we try to start it on a server that is configured for a workgroup we get the following error in the event log: Event ID: 7001 Description: The {Service Name}service depends o...more >>

I would like to know if there is free software to link assemblies together, deploy without whole Framework installation. so I could work my application in any computer without Framework. Thanks ...more >>

Hi I have an aspx page which has javascript to configure xmldata. I added breakpoint to the button method. When I click submit button, it did not go to those breakpoint and show the following error System.Web.HttpRequestValidationException (0x80004005) Detect the potential danger of Request.For...more >>

Wouldn't it be neat if I can declare a variable (or parameter or return value) as a non-null reference. Say I suffix it with '!' to say that it is always a non-null reference and have the following signature for a method. public TypeA! GetX(ClassB! p1, ClassC p2) { TypeA v1; //some ...more >>

This thread is intended to be more of a discussion thread - because i value the opinions of the posters in this newsgroup, and especially the MVPs like Nicholas Paladino and Jon Skeet (thanks to all of you for your help over the years). My company has been toying with moving alot of our applic...more >>

Hi sleepless passionate coderZ! I wanna ask you a qustion abot Microsoft Word Templates. I need to construct a template such that it will contain both static and dynamic fields. For instance we can think of a phone book on a A4 paper ---------------------------------- First Name: Frien...more >>

Who can tell me how to convert the InternetSetOption in c#? #include "Wininet.h" #pragma comment(lib, "Wininet.lib") static BOOL SetRegisterInfo(HKEY Key, LPCTSTR SubKey, LPCTSTR find, DWORD set) { ..... } void OnDisableWWW() { SetRegisterInfo(HKEY_CURRENT_US...more >>

here are the lines of code that I've tried. All crash the program shownVals is a string array data is my datatable //problem code #1 loop here{ ((Form1)NewsMyWay.Form1.ActiveForm).data.Rows.Add(shownVals); } //problem code #2 ((Form1)NewsMyWay.Form1.ActiveForm).data.BeginLoadData()...more >>

I'm looking to use .pdf's in an application i'm creating, the SDK on the Adobe site said it was only for VB, C & C++ Where should I start I want to print and view Regard Jax...more >>

I have been using a label with the TreeView control - to simulate the ghost image of a node during drag/drop (so that a ghost of the node appears to be floating next to the cursor on a drag/drop). This works peachy when I had a form that used the TreeView control (from Microsoft). The t...more >>

Good Morning Group, I've created an app that "runs in the background "(the window state is minimized, the showintaskbar is false, and it displays a notify Icon.). This program will be running on a server and will be doing scheduled maintenance on a database. What I'm wondering is, would this ...more >>

Hi, I am looking for a simple performance benchmark, I need a report of how much time my methods need to execute - just to get an indication of where it is best to start optimizing the code. Of course I can benchmark every method by taking the start and stop time when the program enters and e...more >>

Hello I have a Hastable, which I need to order it by value and not by key. Regards...more >>

I saw the ref param keyword relating to base types. Just checking, if I pass an object around to other class constructors, there will only be one instance of the object, correct? Thanks! Derrick ...more >>

I have an existing xml file taht looks like this. <?xml version="1.0" encoding="utf-8" ?> <Aircraft> <WCOJOItemType type="AircraftType" > <WCJOItemCode>03</WCJOItemCode> <WCJOItemDescription>B737-700</WCJOItemDescription> </WCOJOItemType> </Aircraft> I want to be able to add nodes t...more >>

I implemented the simplest of splash screens ( static and on its own thread ). But it seem that when first called maybe 8 seconds elapsed before it showed up, the main form follows several seconds later. Naturally recalling the application, the response is adequate I have 10 classes in my projec...more >>

Help, I have following code: ----------------------------------------------------- protected override void Render(HtmlTextWriter w) { if (helpString!=null) { w.write("<span class='tooltipiconouter'><img title = '"+this.helpString+"' class='tooltipIconInner' align='center' src = '../Lib/i...more >>

I have written a custom replacement for library function Math.Pow(double x, double y) for the specific condition of y being integer and >=0. It is twice as fast as Math.Pow(), but I cannot get the compiler to inline compile it. I've tried many different approaches, but nothing seems to work. ...more >>

Hi, I'm trying to use a C function ( long int myFunc() ) from a DLL in my C# program. I use DllImport("dllname") a C function and declare it as [DllImport("dllname")] public static extern int myFunc(); At first I used public static extern long myFunc(); but that returned a bizarre ...more >>

Hi I have a class that have a Login Method that opens a Login Form The client that calls the Login Method should receive the User_ID if logins succed Is it possible to return from the Login form to the method the UserID and from the method to the client //THIS IS THE LOGIN METHOD THAT WILL CAL...more >>

Hello, I am trying to execute the following code: private void button1_Click(object sender, System.EventArgs e) { PictureBox c = new PictureBox(); c.BorderStyle = BorderStyle.FixedSingle; this.Controls.Add(c); ResourceManager rm = ResourceManager.CreateFileBasedResource...more >>

I'd like to build a class or struct composed of pointers to variables. Does this require dropping into an 'unsafe' block, or is there a trick? .... int value1 = 1234; bool value2 = false; string value3 = "Hello Detroit"; public class x { int *adr_value1 = &value...more >>

Our university is doing some survey work to consider where the world of IS is headed. Since most of those here work in that world, I'm interested in your thoughts, especially if you think you have a good feel for job skills needed now and job skills needed in the future. The question is sort ...more >>

Hi All This is the error i am getting when i try to install my addin in some other machine and works fine in development machine. I checked the ..net framework version it is 1.1 in developement and installation machine. Also the outlook version is Outlook 2002 in both development and installa...more >>

Hi, I have following code: ----------------------------------------------------- protected override void Render(HtmlTextWriter w) { if (helpString!=null) { w.write("<span class='tooltipiconouter'><img title = '"+this.helpString+"' class='tooltipIconInner' align='center' src = '../Lib...more >>

if I want to have mulitple use in mail.From\mail.To\mail.cc How can I do?? thx ...more >>

Ok here's my situation... Got an MDI application with a panel to my right that has a tree view for the project stuff, etc. Now if I select an item in the tree view, the tree view gains input focus. After this happens, my MDI children no longer are able to obtain keyboard focus and therefor...more >>