"If an instance method declaration includes the sealed modifier, it must also include the override modifier." The C# Programming Language, =A7 10.5.5 Sealed Methods Why is this? Thanks, Mulugeta ...more >>

Hi, In a Windows Form I created a set of ToolStripMenuItems. I am looking for a method to list, for a specific ToolStripMenuItem, the Click EventHandlers (if any) so as to add them to another control. I found System.Reflection.EventInfo class which seems to achieve this kind of enumerat...more >>

Hi, I'm using VS2005 and .net 2.0. I'm creating an application that has 3 forms. I want allow users to move forward and backward with the forms and retain the data users have entered. I thought I'll make the inactive forms invisible but this is creating a memory corruption problem when user...more >>

It seems the static constructor is supposed to be called, ONLY once for a particular type. If that's the case, why does the following code throws an exception? using System; using System.Collections.Generic; using System.IO; namespace GenericTypes { class Program { st...more >>

Hello, We have been experiencing a problem with AutoResentEvent class for past 2-3 months. It seems that it just stops at WaitOne and the thread doesn't released from blocking state. We have been using the following code for past 4 years, and It was working perfectly fine till Nov-Dec last ye...more >>

i write query in this manner by contatenting a string: cmd.CommandText = "SELECT acc_name FROM Account_Information where user_id='" + User_Id + "'"; Is there any other way to do it.... please tell me how to do so and some good link related to that? ...more >>

hi i'm downloading a single file using multiple threads... how can i specify a particular range of bytes alone from a single large file... for example say if i need only bytes ranging from 500000 to 3200000 of a file whose size is say 20MB... how do i request a download which starts directly ...more >>

I'm trying to make a button that will change the location of the form. I would have thought that the following code would do the trick: this.Location.X = this.Location.X + 1; however, this gives me the error: this.Location.X = this.Location.X + 1; Any suggestions? ...more >>

I've built a small app to deploy my apps in a small domain, just for my own use when I make small updates to pass to my end users. My app uses File.Copy, and works fine except that it takes a long time to fail if the machine I'm copying to is in standby, turned off or hibernating etc. How cou...more >>

Hi, My client has given me some files in .dll form rather than the source code itself ( say X.dll instead of X.cs ). So while debugging, at points where there are references to functions in X.cs, I have to "Step over" rather than "Step into" - Is that correct ? If I try step- into I get an er...more >>

How do I tell DataAdapter that Column 2 and 3 are string and not integer? Following is the example data that comes from the .csv file FEDERAL TAX,1084,0000 COREHCR,1084,0000 CLIENT P,1084,0000 The select is: OleDbDataAdapter da2 As New OleDb.OleDbDataAdapter("Select * from " & "Corela...more >>

Hi, I have an app with the main thread and one additional thread. In the main thread I defined an event handler MyHandler, the function for raisin this event OnMyEvent and the function for processing this event MyFunc. I want to raise this event from the second thread. Is it thread safe t...more >>

Does the .NET framework provide a method, provided a TimeZone instance and DateTime in that TimeZone, returns corresponding UTC DateTime ? If so, does this method work in all cases ? Especially considering the recent US DST changes. ...more >>

Hi I Have a solution with about 50 projects and each project have References to 1 to n of the projects in the solution. I try go to a project and try to add a reference to another project and I get a Circular Reference" error and cannot reference the project. Is there any way to find ou...more >>

Hi, I build an application that get a command from user and send it to server, but I'm using Internet Explorer for that as following : psi = new System.Diagnostics.ProcessStartInfo("IEXPLORE.EXE"); psi.Arguments = "http://xxx.xxxx.60.3/webdialer/Webdialer?destination="+this.mytestBox.Text...more >>

I need to retrieve and open a file stored on a Unix server on a network and opens the file as a delimited text file. I'm using VS2005, .net 2.0 and C#. What's the best way to do this and if there's any sample code online? The user would enter something like; \\serverName\filename or \\ipad...more >>

I created a function to use DAAB return a datareader. The connection must keep opening when I consume the datareader. 1. I tested the function, it works. Even I use the datareader after 10 seconds. 2. DAAB document said that it manages the connection. 3. From .NET programming point view, n...more >>

i'm calling a C++ DLL from C#. here's C++ interface: char* __cdecl SendCmd(void* handle, char* cmd, char* data, char* buffer); here's my call in C#: [DllImport("somedll.dll", CharSet = CharSet.Auto, EntryPoint = "SendCmd")] unsafe public static extern byte* SendCmd (void* hReader, [Marsh...more >>

Hello, I have a data entry windows form. One of the text boxes allows the user to enter a string. I need this text box to only allow users to type in a negative integer value (e.g. -1, -2, -3). Current approach: I want to validate the user's entry during the TextChanged() event. Duri...more >>

Hi everyone, I need to refactor some of our processes using the asynchronous programming model. I have defined a couple of arrays of delegates to pipline the asynchronous invocations through different stages of execution. However I was wondering if there was any information available regard...more >>

Dear friends, I am trying to get information from a SEGY file. This format is used to handle seismic data. The first 3200 bytes are in EBCDIC format. The following 400 bytes of the format are the binary header. Every variable in this header occupies 2 or 4 bytes. I developed a program in perl th...more >>

Hi, I need to convert the current time to the format "hh:mm:ss" and date to the format "yyyy-MM-dd". The result of both conversions needs to be of System.DateTime format. I've tried using DateTime.ParseExact and DateTimeFormatInfo but failed, most examples I see convert the final result to ...more >>

Hi, I just finish to install VS2005 on vista and my proget is not working on Connessione = new ADODB.ConnectionClass(); I get an error, so I went to the MS site and downloaded the MDAC_TYP version 2.8 , that is suppose to solve this error. Bu I still get the error and I have no more cl...more >>

I want to create a customized ComboBox where the methods ComboBox.Items.Add and ComboBox.Items.Insert will behave thusly: -- If the item is not present, add it. -- If the item is present, set the selected index to the item (without adding a duplicate). I know the basics of inheriting from u...more >>

Hi I want to re-write a C# application(exe) to C# DLL. This application starts by myApp.MainApplication app = new myApp.MainApplication(); Application.Idle += new EventHandler(app.myApp.OnApplicationIdle); Application.Run(app); But when I move all the...more >>

Is there a way to update a DataSet Object? I have a Dataset Object (DataSetObj.Tables(0) - one table) that I read in from a .csv file. I normally do the following to get my data from the .csv: DataSet DataSetObj As New DataSet; DataTable DTDepartment As New DataTable; DataTable dt As New...more >>

Hi! I have a service running on a main server. What i want to do is to compress the files before i send them to an FTP site. Is there a built in compression tool in the .NET Framework 2.0 or do i have to use the zip functionallity. Anny suggestions, links are warmly welcome... Rega...more >>

Hi, I'm looking for a simple way to convert a Double to a String exactly the .ToString() does, except these two differences: - the number of decimals is given (rounding is applied if necessary), and - trailing zeroes are kept. This means I need it to be converted using the scientific not...more >>

Hello, I need to develop group of reports based on information from daily build. I am interesting abort your experiences with build and reports. Do you analyze information from daily build and source code? When yes, can you tell me what kind of reports you are using for this? ...more >>

Is anyone aware of a .NET API to ease reading and writing Fortran files? I want to load some Fortran files into my own structures. They are a bit of a pain parsing with Regex because 1) they have like 200 fields, 2) some of the fields are files that may or may not be embeded (using the Fortran $...more >>

if (webBrowserControl.Document == null) is throwing an InvalidCastException. PLEASE NOTE: ***The function being called is being called from a thread OTHER THAN than the one that created the WebBrowser control.*** So, I think making a delegate to invoke the function from the proper thread wil...more >>

The given should return A,B that is two rows because both accountnames A and B have the same user_Id=1 but it is only returning A when I performed the op. MessageBox.Show("AccountNames:" + Object.ToString() ); [WebMethod] public Object GetAccountNames(string User_Id) { //s...more >>

Hey guys, Can anyone tell me how to create a text file with Unicode Encoding. In am using FileStream Finalfile = new FileStream("finalfile.txt", FileMode.Append, FileAccess.Write); ###Question: Now this creates finalfile.txt with ANSI Encoding ...which is a default. Either tell me how to ...more >>

my code: //read XML and append XmlReader rdr = XmlReader.Create("parms.xml"); while (rdr.Read()) { //get name and value to prepare clause if (rdr.NodeType == XmlNodeType.Element) { ...more >>

The WebBrowser control won't load a css file written in the same directory as the program. If I put an absolute path to it, it will load it. Thus, the current directory of the WebBrowser control isn't the current directory of the program. What is the current directory? I don't want to use an ...more >>

I need to parse this XML <?xml version = "1.0" encoding="utf-8" ?> <parms> <collumn>notice_of_violation.notice_of_violation_id</collumn> <value>A1000125</value> </parms> In particular, I am going to use it to dynamically build a WHERE clause to be used against my Oracle database. ...more >>

..NET Assembly CustomerInfo.dll has a class by name CustomerInfo which inturn has two methods GetCustomer() and GetCustomerDetails() and GetCustomer() calls GetCustomerDetails(). GetCustomerDetails() takes two input parameters, Stored Procedure Name and Customer Id and returns a dataset. We wa...more >>

..NET Assembly CustomerInfo.dll has a class by name CustomerInfo which inturn has two methods GetCustomer() and GetCustomerDetails() and GetCustomer() calls GetCustomerDetails(). GetCustomerDetails() takes two input parameters, Stored Procedure Name and Customer Id and returns a dataset. We wa...more >>

Hi All I have developed an excel addin in C#. Its working fine on my PC but when i install in a diffrent PC it does not load. I checked with the registry, the entries for the addin setup are present. Please assist what the problem can be. regards shantanu ...more >>

Hello I'm making an update in c# ASP.NET 2.0 using the OleDb provider for SQL Server. I have an existing application running on 1.1 that works fine. Now I want to convert it to 2.0. My problem is that within the transaction, a read after an update/ insert will read the old commited values. The...more >>

Hi, Any one knows a way to get Hard Drive letters and free space (C: / D: ....) from a remote computer? I'm developing one application that needs to know if a second drive exist on that system and i need to know the free space from the root drive and from the second drive in case of exist. Th...more >>

I have a hardware device that I need to read from. To connect to it you do a http://<name>/data and it return a few string of raw data(non- HTML format and no HTTP header). I just need to put that full return into a string and I would be good to go. I orginally tried WebClient and had problem...more >>

Hi, I'm starting a process as follows - Process process = new Process(); process.StartInfo.UseShellExecute = false; process.StartInfo.FileName = installValue + "\\Lib\\site-packages\ \pythonwin\\Pythonwin.exe"; process.StartInfo.Arguments = "/run " + script; process.Start(); process.Wa...more >>

Hi i hope i explaine this correctly I have a class with a method that reads and writes using blocking sockets to a TCP device. Call it class IPdevice. I can use this method to send commands and then wait for a response from this ipdevice im connected to i want to have a background worker t...more >>

Framework: Visual Studio 2005, ASP.NET Programing Language: C#.NET I am using a Generic List Collection to fetch a particular master data from the database. Once collected, I use this Collection to bind it to a DataGrid. Now that I am using a Generic List Collection to populate the DataGrid...more >>

hi I am developing a windows application, which needs to get a html code for a web address. Can someone please guide me in this?? Regards, Ashutosh ...more >>