I am using System.Security.Principal to identify clients and allow functionality based on the groups they belong to. In one case I would like to let them know who can do the function they cannot. How do I list the members of a group? Thanks Tom...more >>

Hi. I want to read a character from console, while writing something to the console. And if, there were no input character in some seconds, then I wish to continue to writing to the console. How can I done that with .NET?...more >>

Hi All, My code: private static unsigned int Queue_count = 0; it can't pass the compiler, the error msg shows the 'unsigned' keyword. there is no unsigned int in c# ? Thanks! Best regards, Boki. ...more >>

How Can I cast a uint type to a byte[4]? Does the following code do this? uint a = 5; byte[] b = new byte[4]; b = (byte[4])a; ...more >>

How can I serialize a uint Type into a Byte[4]? ...more >>

Multi-thread read/write to a single file. I have two processing threads, thread A and thread B; and I called my queue as Q. Thread A will feed data into Q by user input, the timing is random. Thread B will read data from Q to process; this processing will communicate with a website. I th...more >>

Is using Reverse P/Invoke in a .NET DLL for installing global hooks supported? ...more >>

I would like to write code to export to excel, outlook and word. Any idea where a good resource to look? I know about using the VBA macros as I have done that in lotus notes ( but that is VB to VB for the most part). Do I use VBA? or is there a C# version of that? What extentions do I need...more >>

Hi guys, i hace a question i have a datagrid col1 col2 ----------------- D text0 text1 text2 D text3 D text4 i need to do a foreach and everywhere where's a "D" in col1 to add the value of col2 into a string, so the final string would be "...more >>

hi, I am new to c# development. I need to develop a windows application that connects remotely to another application using tcp/ip and gathers statistics like, application running or not, application uptime and also some more data that the other application sends to this monitoring applic...more >>

Hi, I'm inserting a datetime values into sql server 2000 from c# SQL server table details Table name:date_test columnname datatype No int date_t DateTime C# coding SqlConnection connectionToDatabase = new SqlConnection("Data Source=.\ \SQLEXPRESS;Initial...more >>

is there way to use the ftpwebrequest class to send the list -r command? thanks...more >>

I have to write a program, all it has to do is read in the name of the chm file passed to it and show the chm file. I wrote a batch file called test.bat and which will accept the chm file name and it shows the chm file. It works ok, but the dos box is still open and I don't want the dos window...more >>

Hi. When my client program runs under XP and calls a server (solaris in this case) via an SslStream all is well. The client may make multiple calls and multiple authentication calls and be fine. I expressly "clean up" everything streamwise and socketwise and all is well. Running the client u...more >>

Hi, In my ViaualC# .Net 1.1 windows form application, I have a string as: http://MyIP/frmTestForm.aspx?lblTestNo=J2vTuX8Tv7qBn7HzK7O67XCdMQ== On the MS Development Environment 2003 http://MyIP/frmTestForm.aspx?lblTestNo=J2vTuX8TvqBnHzKO6XCdM==, the "==" and the http://MyIP/frmTestForm.a...more >>

Hey guys, Just an opinions thing more than anything. I've just been messing around with Log4Net and discovered the Logging Application Block in the Enterprise Library (3.1). Have you used either/both of these? What's your opinion on them? What were you using it for? (general logging, sen...more >>

hello! i have read somewhere, that the fact, that mono doesn't implement 100% of windows.forms, is the reason, that sharpdevelop doesn't run with mono (under linux). this site, http://www.mono-project.com/WinForms_CodeOwners however, tells me, that windows.forms (.net 1.1) under mono is n...more >>

..NET 2.0 VS2005 I'm wondering if it possible to bind an IEnumerable list directly to a DataGridView? if it is possible then I'm wondering how it should be done? I ask because I think it must be better to use that, than the implementing a foreach loop adding a row to the DataGridView for ...more >>

Hi, We have an app that uses XML serialization throughout. As everyone probably knows, using XML serialization is not always a good idea in a big project (http://www.codeproject.com/dotnet/noserialise.asp). I found this article: http://weblogs.asp.net/cazzu/archive/2003/10/21/32822.asp...more >>

Hi, I need to insert the datetime with milliseconds value into a datarow. My code as below DataTable testDataTable=new DataTable(); testDataTable.Columns.Add("updatedDateTime", typeof(DateTime)); DataRow testDateRow=surveyUpdatedDateDataTable.NewRow(); testDateRow["updatedDateTime"]=...more >>

Does anyone have or know where I can get a some code that will check a TextBox for inappropriate language. At the moment, we need to manually check submissions for language before posting. This takes a lot of time and resources and in some cases a lot of time before a submission is actuall...more >>

Hi everybody! I have a C# app that connects to a mdb file and displays all the fields from a table in dataGridView. I have trouble searching in a Access Date/Time field like this. string searchDate = "12/11/2007"; Result = DateTime.Parse(Result, CultureInfo.Curre...more >>

Hi, Im creating a program in which im trying display a file list in the listview. similar as windows explorer detailed view. im able to get every thing except the file type. im stuck here and could not file any example on net. Please help ...more >>

I am trying to build a rating engine for a number of users for a list of songs. I havea database design with a user table and a song table and a link table such that each user can rate many songs and each song can be rated by many users. However I am a little stuck on the class design. I h...more >>

Hi, I have more than 1000 photos in my system but with very untidy name. Im trying to create a program through which i can rename the file. I have seen the examples on net an forums, but the only solution seems to be with moving the file with different name. I don't want to move the file ...more >>

Hi, I need a function to List all users in a group on a local computer using C#. any assistance would be much appreciated ...more >>

Hi, I want to list all groups on a local machine using C#. How do I go about this? Thanks ...more >>

Hello All, I have a console application that is run via a scheduled task everyday at 4 in the morning. For some reason, a couple of days ago, every time the scheduled task is run (ether manually or by scheduled time) I get a "The surrogate pair is invalid" error. When ever I manually run ...more >>

Hi to All, i'm using C# in .NET 2.0 and i have a DataTable A with a column of type TimeSpan used to store HOUR info. I'm trying to filter my DataTable A selecting only rows that have the column HOUR > .... if i try to Call A.Select( " HOUR > '10:30:00' " ) i receive an error ( cannot compar...more >>

Hello, Does anybody know whether .Net remoting works OK on the Mono installed on Linux? Thanks for any answer. ...more >>

Hi, Its possible to remove, (in execution time), one of the properties that i set in the page directive area? For instance, i have this directive: <%@ Page MasterPageFile="~/Master/Calculator.master" IsClosed="256781" Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" ...more >>

Hi i have created a project that contains some class files and xml files stored in resources. i have created dll of this project and am using it in another project. In other project i want to read the xml stored in the resources of loaded project. Please tell me how can i extract xml file f...more >>

Hi All, I want to use a C++ API in a static lib that returns a linked List in C# I am planning to P/Invoke to perform the Interop, I would like to know which way will be better to interop a Linked list to C# in terms of performance, I have came across following methods I am creating a fl...more >>

Hi All, We can assign multi object ( ex: textbox )'s double click point to a same function. ex: private void all_boki_textbox_point_here_DoubleClick(object sender, EventArgs e) { ... ... } If I have many objects, they are totally doing the same thing, ex: copy textboxN's text t...more >>

Hi All, My textbox is a queue stack, after processing a line, I need to process next line, and the first line should be removed to indicate progress. Should we check the new line by ourself ? and then use substring to make a new string ? Thanks! Best regards, Boki. ...more >>

I have a form listview and have used the MouseDown event to launch a modal dialog if a particular cell is clicked. This works fine but upon closing the dialog I am left with a dotted rectangle drawn between where the original click was and where I clicked to close the dialog. Until another mo...more >>

Hi All, I need to let user type some text in a textbox, and user will click a button to submit the material. It is very straightforward if we implement it by single thread. But the submitting costs a lot of time, especially there are some network latency. I can't let user wait until th...more >>

A subtle point: If your BackgroundWorker reports its progress back to the main application window, you'll need to maintain a positive ratio of time spent within the BackgroundWorker event (_DoWork) on the separate thread, vs time spent in the report back (_ProgressChanged) event which operates...more >>

Could someone help with trying to help me understand this code. I am trying to add remote control functionality to an existing application. I am new to c#. This starts the server bit of the remote object. However, it creates 'channel', registers it, but then, 'channel' doesn't get a mention a...more >>

Hi All, I use a picturebox to show image form URL string. When auto size propertise disable, it works well, but fail whenever auto size is enable. pictureBox1.Image = new System.Drawing.Bitmap(new System.IO.MemoryStream(new System.Net.WebClient().DownloadData(picStr))); picStr is s...more >>