Hello, I don't know how to use the In and Out attribute. Is it better to use them in a P/Invoke call? Or can I use "ref" instead, how I do it til now. thx ...more >>

Hi, I have a regestration form in a form through which users enter the information . I have to insert this data into database. I am using asp.net with C# in visual studio .net. Can anyone please help me by giving me code or other resources on the web. Thanks, Raja Gopal ...more >>

Hello, I have the following struct: public struct WAVEFORMATEX { public UInt16 wFormatTag; //2 bytes public UInt16 nChannels; //2 bytes public UInt32 nSamplesPerSec; //4 bytes public UInt32 nAvgBytesPerSec; //4 bytes public UInt16 nBlockAlign; //2 bytes public UInt16 wBitsPer...more >>

Hi, I'm terribly new at C# (come from C++ land). I'm making some benchmarks to see the effect of different coding styles, and I run across a situation that strikes me as pretty odd. For my image processing code I would like to use low-level "Iterators", as I would in C++, so I have a struct of...more >>

I observe a very weird behavior when dynamically create web control and bind events to it. Create a C# ASP.NET application, Put a PlaceHolder and Textbox onto the Web form, and try with the 4 code scenerio below. --------------------------------------------------------------------------- ...more >>

Is there any way to change the name of a tab at runtime (after the dialogue has been displayed)? Alternately, is there any way to add and remove tab without causing the screen to flicker? Thanks, Aaron Queenan. ...more >>

Hi, When I test my user defined class type passed parameter variable for null it throws an exception. If I use class "string" the null test doesn't through an exception. What could I be doing in my class that causes the exception? Thanks, Mark Thanks, Mark ...more >>

Hi, I am wanting my program to be able to create a shortcut. How is this done? At the moment i have the shortcut created and copy it to the location i need. This is a bit inflexable. any help? many thanks Arran ...more >>

Hi, I am looking for a way to use System.DirectoryServices to find all users on a domain whos accounts are either locked out or disabled. I have used ADSIEdit and the mmc schema add-in to try and find properties for these things but have not had any luck so far. Also i did a search on the P...more >>

Hi, How to get the current Date & Time? Date() & Time() ? Thanks. ...more >>

Hi, I need to extract plain text from HTML page (i.e. do not show images, html formatting, ...) Is there some C# class/function that can help me on this? Thanks, Guogang ...more >>

How can i drag a datarow from a datagrid to a other control? e.g. Drag a datarow from a datagrid to a TextBox,Then display one colnumn' value of the datarow . Or Drag a cell's value to a controll and display/handle the value in the other controll. Thanks in advance. ...more >>

Hi all, I'm using the Web Broswer control on a project that I'm working on, as I'm using HTML as my primary user interface. Is it possible to make the browser control background transparent, so I can still see the windows form stuff underneath, but have the HTML text still on top? It may be...more >>

Hello! I am using the DrawString method with different StringAlignments passed to it and the result varies alot! Take a look at this screenshot: http://www.lowrad.net/files/alignment_screenshot.jpg As you can see I am printing four different text in each of the the parts of this image. (...more >>

Hi! Does anyone have a tipp for me where can I found (or how can I programm) a "progressbar" which has a gradient and the color go from the left side to right and back ... I should have a waiting-progressbar :-) Thanks Thomas ...more >>

Hi All, How to retrive computer list in a workgroup? Regards Eka ...more >>

Hi! This is not exactly a C# question but I don't know where else to post it... I'm making an application where the user keeps track of it's art collection... I'm also trying to implement a search, where the user could search specific arts based on defined criteria. The problem is when it ...more >>

Hi, I'm writing a program in C# which logs data comming from a com port. the port is set up 8 bit, no parity, 1 stop bit (n-8-1), @ 38400 baud. I'm supposed to receive this data and simply display it in a listbox. No problem there. Once I start iterating through the data to do some manip...more >>

Hi, Right now I am trying design user data persistence in my winforms app and have a few questions. Right now the app is designed to save to a local file however down the road it might be changed to saving to a database. So, I was thinking about designing a dataset that if I do switch to a d...more >>

I am having a problem where a color i select, and convert to a string for storage in an XML file is not being converted back properly. The following is a small example that illustrates the problem.The color seems to show up properly, but it has lost its IsNamedColor property. Is it possible to ge...more >>

I want to be able to create a script or exe (C# would be nice) that will, when run, create a dial-up VPN connection, so that end users dont have to do this task. In other words is it possible to script/code the network connection wizard, if so how? I have looked through wsh and wmi and c# doc...more >>

Hello everybody! Has anybody developed an app which adds a toolbox item to the .NET IDE designer? Or knows the steps to do so? Or knows some good tutorials on this? I have a starting point, the IToolboxService interface, but till now it didn't work out for me. Any help is really welcomed, ...more >>

when You create a ne sqlconnection, or any other connection, You can use connection creator to create a connection string. how to do this in Your own components? -- "Zeglarstwo jest koniecznoscia zycie nia nie jest" www.saper.infra.pl/ Saper(ek) ...more >>

When I try to create a new C# Web Reference in Visual Studio 2003, I get an error message "The proxy settings on this computer are not configured correctly for web discovery. ..." This web reference is to a service on my machine - http://localhost/... - so I don't know why any proxy configuratio...more >>

Ok.......... I'm trying to fill a parameterized table onto a Dataset via a sqlDataAdapter. It works fine if I fill the Dataset with all the column fields. What I want to do though is to only fill the Dataset with certain values from my DateTimeIn column (i.e. only files where DateTimeIn == use...more >>

Can anyone tell me the preferred method for writing and retrieving persistent information using .Net. Specifically, I am referring to information that you used to see in registry keys or .ini files like the name of a database or connection string. I have read several articles indicatin...more >>

Hi All Any good website or reference material to teach "Design Time" in C#. Thanks Sasha ...more >>

Why is it that I can interactively debug some files in my .NET solution but not others? When I try to add a breakpoint during runtime it give me a breakpoint with a question mark and tells me "The breakpoint will not currently be hit.No symbols have been loaded for this document." How can...more >>

How can I simply do this. string tAlign; tAlign="Left"; TextBox textbox1 = new TextBox(); textbox1.TextAlign = tAlign; I know that it shoul be like "textbox1.TextAlign = HorizontalAlignment.Left;" but I want to replace this by a variable so I dont have to go throught a lot of case sta...more >>

I am having a problem closing a popup window opened modally. When I try to close the window (when the user hits save button and the data has been processed), the Popup window opens as a full screen as a new window. The original window plus the Modally opened Pop remain in a separate window. W...more >>

How to import an Office window? Hello. I want create a MS.Office.Excel or IE window on my C# form and edit some Excel files. How can I do that? Need I buy some licences from Microsoft? Thanks CYShao:-) ...more >>

I want to display a webpage that I have in a string. which control should i use to do this?, or how can i acomplish this?...more >>

I have been searching the VS.NET help files and the internet for hours for a comparison between VB and C# of keywords, operators, other types of syntax, but no matter what I type in the search box, it keeps giving me 500 articles, of which most are of no use to me, or have nothing to do with my ...more >>

I'm working on an app where I need to access a table from 2 different databases (same MS-SQL box). What I need is to have a SELECT string with an INNER JOIN based on these 2 tables. If they were in the same DB this would be no problem, but I can't figure out how to get this via C#. Any help...more >>

hi, how to get the fullpath of created IsolatedStorage directory. thanks. -- gani ...more >>

Hello, I have a conditional statement in VB that I want to translate in C#, but I can't find the syntax. VB: If (MyFirstString = "" or MySecondString = "") Then <insert your code here> End if C# if (MyFirstString == "" ---- then what?) I can't get rid of those red squiggly lines if ...more >>

I need to consume a wsdl file using C#. The web service was not created in ..NET but I need to consume it. Can anyone point me to an example that is consuming a wsdl using C# for a windows application? ...more >>

Hi all, I have a C# web application which calls a number of stored procedures. I wish to step into the stored procedures while debugging i.e "Mix-mode debugging": I have completed the following steps: Configured DCOM Connected to database via Server Manager (I can see the SQL server an...more >>

If you like the C# programming language and RPN (HP style) calculators, you'll love C# Programmable Calculator. Take a look at it at: http://www.personalmicrocosms.com/html/cspcalc.html Sincerely, Eric Bergman-Terrell wwwPersonal MicroCosms.com ...more >>

I want to have a controller class to do - initilization: create a thread pool with max 10 thread - get ten records from the db every time - assign each record to one thread worker thread - do the application logic - once finish, tell the controller class once all the ten worker threads ...more >>

I want to have a controller class to do - initilization: create a thread pool with max 10 thread - get ten records from the db every time - assign each record to one thread worker thread - do the application logic - once finish, tell the controller class once all the ten worker threads ...more >>

Hi, I want to measure a time (in ticks) between a couple of operations, with these code: long voor = DateTime.Now.TimeOfDay.Ticks; bmp1 = new Bitmap(@"\Network\im\ImageWeftIllum.bmp"); bmp2 = new Bitmap(@"\Network\im\ImageWarpIllum.bmp"); g.DrawImage( bmp1, 0, 0 ); g.DrawImage( bmp2,...more >>

I've saved an xml string into a file and loaded it into a dataset then displayed it into a datagrid: XmlDocument doc = new XmlDocument(); doc.loadXml(stringXml); doc.Save(Server.MapPath("data.xml"); DataSet ds = new DataSet(); ds.ReadXml(Server.MapPath("data.xml"); DataGrid1.DataSource = d...more >>

Hi I'm a C# .NET newbie doing a minor school project but I'm getting a strange error message. 'System.NullReferenceException' occurred in system.windows.forms.dll Additional information: Object reference not set to an instance of an object." As my references look I seem to be using the old ...more >>

Is it possible? My server would have the framework installed and the dll properly registered. Thanx for any help. Bernardo Heynemann Developer@BancoBva S/A - Brazil...more >>

Hello: I wanna know if a certain computer exists on the network by giving its name. How can I do that? Any of you could send me the code? Greetings ...more >>

Hi ListBox, ListView and other controls have inherited methods and properties. I could not understand how to use them. For example if I have protected override void OnClick( System.EventArgs e) { //....... base.OnClick(e); } It is called only if I click in a form, but not in ListBox o...more >>

Does anyone know any on-line C# exam which can give me a quick self-evaluation? Thanks a lot Chris...more >>

How to collapse expanded child windows to their original state? (not layout) ...more >>

Hi, I've wrote a AxWebBrowser control to display html interfaces in my application. This works fine, however, I would like to load images from my application's resources instead of saving them to file then referencing that file. For example: in the HTML i'd have a image like this <img src...more >>

HI How can I extend the Open File Dialog like I can with MFC to show a preview of pictures before loading them. Max ...more >>

I am developing using Visual C#.net. It appears that my web projects create files in both "My Documents\Visual Studio Projects" and ".\inetpub\webroot". Does backing up these files ensure that my code is all backed up? Is there a backup/restore FAQ somewhere? -- Thanks, Martin Schmid,...more >>

Any idea on how to find a matching bracket in VS.Net?? Thanks in advance, Bob Hanson ...more >>

Hi, I'm having an odd problem with a regular expression in C#. I'm trying to parse the rows in a web page with this pattern, and the computer locks up: "<tr valign=middle>.+?<a href=\"/listings/details/index\\.cfm\\?itemnum=.+?8000 FB 24/7.+?(Antonius|Marcus).+?PLATINUM (\\d+)K PP.+?\\$<b...more >>

Hi, Does anyone know how to hide certain TabPages inside a TabControl in VS.NET 2003? I've seen code to remove the tabpage but I want to show/hide based on the user's access rights each time, rather than removing the tabpage. There doesn't seem to be an Enabled or Visible property and set...more >>

I'm calling a function in a DLL from my C# app. The function returns a int* that it allocates using calloc. Will this be a memory leak problem for my app? Is there a way to fix it other than adding another method to the DLL which frees the memory? thanks!...more >>

I have two projects - they both need to use the same web.config file, the same global.asax file, and share a common "look and feel" via several user controls. Is there an easy way for two projects to share these resources in VS.NET so we don't have to worry about synchronization issues ASIDE f...more >>

I need to send an encrypted DataTable through RSA. How can I serialize it, deserialize it, then turn the byte array back into a DataTable object?...more >>

Hello, I'm trying to save the changes back to the database, but it doesn't work -could anybody help me? I'm using a DataSet and the wierd thing is that I can save the changes in the memory but not in the database :-/ I have tried to duplicate an example I found on msdn -but with no luck. The s...more >>

im having problems trying to understand the delegates in c#, does anybody know some link where i can find a good and simple explanation? thanks...more >>

Hello, I'm trying to set up my network properties e.g. my IP. Has anybody tried this, and what did you in that case do? That iphlp-library looks as it has stuff for getting, but not setting, the IP. Please give me a hint, a snippet or a clue as to what api to use. Best Regards, Chri...more >>

hi there, i have created a webservice which is running well on the developer computer. for this i also created a windows installer setup which also works well on the developer computer, but if i try to install it on another machine (framework installed) there comes the error cs1595. i have ch...more >>

Hi, I wanted to replace all ',' with ';' but compiler gives me an error that my subLine is read only foreach ( ListViewItem.ListViewSubItem subItem in Item.SubItems) { subLine = subItem.Text; int nIndex; while ( (nIndex = subLine.LastIndexOf(',' ) ) != - 1 ) subLine[nIndex] =...more >>

Is there an equivalent way in C# of writing the following C++ code. A and B are classes, class B { private: A m_A; public: const A & ReadA () const { return m_A;} } i.e. is there a way of returning a reference to a const object as opposed to a reference to an non-cons...more >>

How can I open a textfile from C# using notepad (or the user assigned application for this)....more >>

Hi All, If anybody is aware please let me know how do i change the orientation of the toolbar of the .net windows control. When i drag out the toolbar its orientation is horizontal, then once if i dock it to left and right and then again drag it in it remains vertical always t...more >>

I set the AutoScroll property of a windows panel to true. How can I tell when the scrollbar becomes visible?...more >>

We are developing a C# application that has many interfaces to the Microsoft suite (eg Word, Excel, Outlook, Powerpoint, etc). We need to support Office 97, 2000, 2002 and any future versions. Our first cut used early binding and worked fine with Office 2002. We then ran on a machine that had ...more >>

October 2003 .NET Framework SDK Documentation Update: http://www.microsoft.com/downloads/details.aspx?FamilyID=2eaeb501-c197-4892-9c50-8f6be1b0d4e0 Download 48532 KB, English: http://download.microsoft.com/download/0/b/b/0bb757a0-e734-4e78-b95b-d357e2d8635a/NDP1.1-KB827821-X86-Enu.exe ...more >>

Hello All, I have a Commerce Server application that uses Microsoft.VisualBasic.Compatibility.DLL . My development machine uses Framework 1.0.3705 . When I deploy this app to a machine with Framework 1.1 I get the "<add assembly="*"/>" configuration errors. In the stack trace I see this...more >>