I have one doubt about the following task. My task is download drawings from FTP Server folder. I reach the task successfully, but it will run only in Local Host. If I am publishing the site means it will displays the following error sir. Can you help me how can I rectify the problem. ...more >>

Hello!, I'm just trying to write my string to a simple binary file so it can't be read in a text document,, however it doesn't work.. I do this FileStream fs = File.Create(Server.MapPath("secret.txt")); BinaryWriter bw = new BinaryWriter(fs); bw.Write("You should not...more >>

Hello, I have a Form that contains some configuration information. One of the settings is for SSL. There is a checkbox that I want to check to make 2 textboxes un-editable so that a user can type information into the textboxes. If the SSL checkbox is unchecked the 2 textboxes should becom...more >>

I've installed Orcas beta1 March 2007 CTP. I get compiler errors on any LINQ related code. For example: List<string> cities = new List<string>(); cities.Add("London"); cities.Add("Paris"); cities.Add("Las Vegas"); var holdit = from city in cities ...more >>

My programming experience is limited to some vbscript and WinBatch. Where to start on learning C#? Do I need to work on .Net first? TIA, Lang...more >>

Hello! Using the definition for en ellipse (http://en.wikipedia.org/wiki/Ellipse) I can draw an arc of points. However, the end points of this arc do not coincide with the end points of an arc drawn with the DrawArc method, e.g. public partial class Form2 : Form { public Form2() { ...more >>

Hi All, Although C# has Generics, it still does not support the generic programming paradigm. Multiple inheritance is required to support real generic programming. Here is a simple design pattern to illustrate this. Problem: I need to expose two lists of objects from a high-level class. I w...more >>

Hi - I have very little C# programming experience. I am making a software product which calls for an interface almost identical to Windows Explorer - and I wondered if mounting a "virtual drive" would be feasable for me (someone not good at programming) to implement. -- LTP :) ...more >>

i am localizing a project for the first time in visual studio (done it in delphi before) and had a question. I understand resourcemanager and all that, but what do most people do with the Properties.Resources.resx file for string localization? Do you use this file for your local strings, o...more >>

hey, I set up remoting in my .net project. needless to say there is alot of code that goes into making it work. it runs communication from a windows app to a windows service. but I notice that sometimes when I set a variable in the middle class from my windows app, (which is monitored via ...more >>

I have an ArrayList with 5 elements in it. I have a Next and a Prev button on my form. I need to show the first element in a textbox when the form opens. I need to move to the next element in the ArrayList when I click the Next button and move to the previous element (if I am not on the fir...more >>

Hey all- Looking for a free download of an SDK for legacy Dialogic boards (D4, etc) to work with C#. Anyone know of such a creature? John ...more >>

Is there a good primer on DataTables out there? Mainly I am looking for an article that lists the properties and methods (with examples) on the different properties you can use with a DataTable. For example: Rows Rows.Count Clone CopyTo NewRow Columns.Count ColumnName Clear() Rows.Cl...more >>

Hi, I have a C#.Net 2.0 web app which needs to be able to read a bunch of files from a user's computer, but I have not be able to get it to do so without "Access denied" errors. The main piece of code is simple List<FileInfo> AllFiles = new List<FileInfo>(); ...more >>

Hi, We have an app which, every now and then, has very high CPU usage. Profiling under perfmon shows it to be thread #3 which is running at >=95%. I took a process dump and looked at thread #3 in WinDbg and it's a thread called ".NET SystemEvents" The stack trace looks like this : 0:003...more >>

This works without any problems: Code Snippet string uri = "tcp://localhost:8000/CAOFactory"; cf = (CustomerInterfaces.ICAOFactory)Activator.GetObject(typeof(CustomerInterfaces.ICAOFactory), uri); ICustomer objCustomer = cf.CreateCustomer(); BindingList<ICustomer> customers = objCustome...more >>

I am interested in scanning web pages for content of interest, and then auto-classifying that content. I have tables of metadata that I can use for the classification, e.g. : "John P. Jones" "Jane T. Smith" "Fred Barzowsky" "Department of Oncology" "Office of Student Affairs" "Lewis Hall" etc....more >>

I have a custom business object that implements INotifyPropertyChanged and IEditableObject. The collection of these objects inherits from BindingList<T>. I created a BindingSource from which a grid (list of objects) and a detail groupbox where bunch of textboxes are bound to them. Problem i...more >>

Hi i am trying to upload a txt file thru this code, but its not updating the data. is this code fine. Or can anybody please suggest me some other meathod to do the same. its urgent please help regards shantanu WebClient client = new WebClient(); client.Credentials = netCred; client.Hea...more >>

Hi, How do i parse a string "ABC 2005 (12)" and convert it to "ABC 2005 (Dec)" in C#? The number within the brackets represent month.. am new to c# and breaking head for couple of hours over this seemingly simple thing, would be glad if anybody could help. Thanks in Advance, Ajai ...more >>

The background: Vendor-supplied CA Cert and client cert, connecting to vendor- published web service. Installing the certs in the browser works (Firefox and Internet Exploder). Building the soap message long hand and POSTing it via HttpWebRequest, using cert attachments works. However......more >>

Unaccountably, I cannot re-enable a timer from an background thread. The disable works fine, I just cannot get it to start back up. There is no method "InvokeRequired" like there is for windows.forms.controls and I get no error message about cross thread so I am not sure where the problem is...more >>

Hello all, Using csharp, how would I get the application name that opens any given extension? I'm interoping with Office to provide an in house service to convert office files to pdf. Provided a file path, I need to determine if the file is excel, word, etc...and I don't want to simply re...more >>

I am attempting to fetch data from an external process. It seems to work OK with regular arguments, but not with switch arguments. Here is an example of a failure: =================================== ProcessStartInfo psi = new ProcessStartInfo("date","/t"); psi.UseShellExecute = false; psi.R...more >>

Hello! I am new in programing and I have this problem: I must on button5_Click move current form. The code of form is: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; na...more >>

Hi all, I ran into a headache problem. I have a windows form with a progress bar on it. Then I new a thread to do calculation for a long time. I want the progress bar to show the calculation progress. So I use a shared variable in calculation thread to allow main thread read it periodically i...more >>

Hi, I have read the "how to's" on MSDN including this one, http://msdn2.microsoft.com/en-us/library/36b93480.aspx, on reading/writing files in C#, but haven't found something that I can put together that is working. The file I have is in EBCDIC, rec length = 250 and delimited by CRLF's. ...more >>

This may not be the best group in which to post this. If there is a better location please direct me there. I have been experimenting with Sandcastle to generate CHM help file documentation for some of our projects. I can configure a project(s) to generate the required XML Documentation file...more >>

can some one pls suggest me why? StreamWriter sw = new StreamWriter(@"c:\Temp\1.txt"); double dd1; double dd2; double dd3; double dd4; dd1 = 1452.123456789876123456; dd2 = 1452.123456789123123456; dd3 = 1452.123456789567123456; dd4 = 1452.123456789456123456; sw.WriteLine(dd1.ToString()...more >>

Hi, I'm using executenonquery to check the existence of table in the database. I tried two methods of queries, everything return -1 even though table exists in database Code as below SqlConnection connection=new SqlConnection("Data Source=\LOCAL; Initial Catalog=ff; Integrated Security=SSPI...more >>

i want to call a java script function from code behind. in page1.aspx page i placed script' <script language="javascript"> function SetSelected() { infoTextBox.select(); } </script> i want to highlight text in infotextbox in some cases. so i want to call this function within code...more >>

Hii, I saw a lot of programs, that can be in tray (in the bottom right corner), and they can get Key Press event although they are not in focus. Is there a way to do it in C# windows application? Thanks, Ofir. ...more >>

In my application I want to display some data in a list box. I need to display the data as a picture. My 1st idea was to create a ValueConverter to convert my datas to ImageSource But this has a few problem, the biggest one is there is no parameter! So I though of MarkupExtension something ...more >>

error CS0445: Cannot modify the result of an unboxing conversion I'm quite new to C# and can't really see how to get rid of the above error. I have an ArrayList instance to which I add two types of elements. The first type of element is a class, the other type of element is a struct. Sometime...more >>

I'm trying to use the IThumbnailCache COM interface to query Vista's system thumbnail cache. Unfortunately there's no type library for it. Here's what I've done so far: - Created thumbcache.tlb from thumbcache.idl using midl - Created thumbcachelib.dll from thumbcache.tlb using tlbimp -...more >>

Hi NG! I have recognized a strange behavior of the DataGrid control. If I'm editing the value of a cell in the DataGrid and press the close button (of the ControlBox of the application 'X') then the application closes but the DataGrid does not loose the Focus. I would like to save the change...more >>

thanks ...more >>

Hi all, how to save/read content of a RichTextBox to/from binary field in Ms.SQL Server ? I want to do save and read operation... I couldn't it Thank you ...more >>