I've recently been playing with TypedReferences (basically type-safe pointers). You can't have a field of type TypedReference because it would make garbage collection really hard (the garbage collector would need to work out that you're holding on to a TypedReference to a variable within a ...more >>

Hi I have a problem with the BeginReceive method in Socket class while using it to receive responses from a server. I have reread my code many times but cannot figure out why the delay is happening. My scenario is this: 1. I send a request for user1 to a server that will trigger 3 responses....more >>

Hi Everyone, I'm an extreme novice when it comes to C#. I am trying to start a client server application that is going to communicate with a server over the internet, but I'm not sure what to use for my communication layer. There are some things that I'm using a Web Service for. For ex...more >>

Hi, I have a page CourseEditor.aspx to allow users to modify course information. I am having problem with page expiration. Here are the steps I take to reproduce the problem: (1) I open a browser to http://localhost/CourseEditor.aspx?cid=105, then I modify the content of course 105 and s...more >>

I'm creating WinForms 5-language client-server application which allows to add/change translations at runtime. I have table in server which contais translations, 9000 records : MainLanguage CHAR(254) primary key, Language1 CHAR(254), Language2 CHAR(254), Language3 CHAR(254), Language4 CH...more >>

I plan to write a class representing a particular type of string from an obsolete machine architecture. It involves a non-ASCII character set and has some rendering quirks such as "characters" that expand to reserved words when displayed. If possible, I'd like my string class to behave like...more >>

I have an array of objects. Each object has 14 private fields. For each object, I would like to determine the maximum number of characters contained within that field, trimmed of any trailing spaces. Is it possible to reflect over each of the private fields of an object to determine the num...more >>

I'm looking for sample code to help me learn how to write a toolbar add-in for IE. It can be VB6, VB.Net, C# ... heck, I may even try a little C++. Whatever you've got....I want it. Thanks! jim ...more >>

I am running C# in VS 2.0 and when I do: using System.Drawing; I get an error saying that namespace doesn't exist. When I do System. I get a dropdown with a bunch of namespaces but Drawing is not one. Why not? Thanks, Tom ...more >>

Hey ..NET 2.0 In my code am I trying to access an xml file using streaming. My code compile but I think there is some kind of error in my code...: HttpWebRequest request = (HttpWebRequest) WebRequest.Create( <url to xml file> ); request.Credentials = CredendtialCache.DefaultCredentials...more >>

Hi, I want to store string members in a generic list. When I assign to the member of a list a new value, I would like it would be reflected in the collection also: string firstString= "first"; myList.Add(firstString); firstString="second"; string test = myList[0]; I wanted the test...more >>

Hi guys, I have a DataGridView binded to DataTable. In the DataTable I have an "ID" field. How can I create calculated column in the DataGridView that gets as value object (string) from my list, where item index in the list is equal to value in "ID" field? Thanks a lot Aleksey ...more >>

Obviously, this is kind of a newbie question, but bear with me... I am looking for information/opinions on the level of complexity that can be handled in C#, given the current state of the GUI support, using WinForms or WPF. Here's why: I have an application that is several years old, constr...more >>

Hi, Ive been breaking down my string with regex and havnt been doing to bad for a begginer. However Im struggling now. Examole string = '10 04 thismaybemissing 10 rob 1 2 3 robagain 3 74 * 70 4 2' This is normally how the string turns out. Now and again the 'thismaybemissing' is missing giving m...more >>

Hello. I have see the error in the subject line pop up before when attempting to reference a non-static member from a static context, however I am now having this issue when referencing a non-static member from a non- static context and can't quite figure out why. Can anyone shed some light ...more >>

Is there a way to initialize an ActiveX control in a class? I tried copying over the code that was auto generated when I added the control to a form, but I am hung up on the following line: this.mycontrol.OcxState = ((System.Windows.Forms.AxHost.State) (resources.GetObject("mycontrol.OcxState...more >>

I have two examples where I need to do this: Example 1: Lets say that I have a bunch of TextBox's on a form. All these textbox objects share a common KeyPress event which validates the input to make sure that it is a number, control character (IE: Backspace, enter key) or special symbol ...more >>

I haven't worked with the TimeSpan object before. So bare with me if this seems like a newb question. But if I wanted to know how many days from the current date until 2/4/2008. I have written this much code so far. DateTime startDate = new DateTime("2008-02-04"); DateTime c...more >>

Hello, Newsgroupians: I am trying to serialize an instantiated object using XmlSerializer. I would like to serialize the object to an XML file; however, I'd like it to be in a subcategory in the XML file, for I'd like to save other settings in the XML file. Is it possible to do this using...more >>

Hello, I am displaying data retrieved from a database as a httpresponse in a webform. I noticed that some characters such as the comma (,), display as special characters in the web browser (Internet Explorer). It displays something like $^^% instead of a comma. Please how can I have the br...more >>

hey ..NET 2.0 In my code I've been accessing a xml file like this: string url = <url> // for example http://www.test.com/default.xml XmlReader reader = XmlReader.Create(url); But now I need to add the User-Agent to this request. the Url I request doesn't work if I don't provide the User...more >>

Been struggling with find the correct ESC sequence for this. A telnet session is established using Win XP DOS prompt. I have provided a custom telnet screen - not the Server 2003 telnet. I am taking control of the port 23 session using the basic API tools available to me in .NET. I want...more >>

Is storing ColorDialog.Color as simple as colorDialog.Color.ToString()? And to retrieve it just get that value that was stored and then use it to assign your color to wherever you need it. I have not tried it yet, but I would like to know if that is all it takes. Thanks ...more >>

Hi, I have to upload files on a ftp server through a ftp proxy with Dotnet. I have a 'System.InvalidOperationException' with this message : "The requested FTP command is not supported when using HTTP proxy". Is there a solution to use a FTP proxy and not a HTTP proxy ? Thanks Marc My cod...more >>

Can someone tell me all the events that are raised when a Windows Form is being rendered. I am also interested in the order in which these events are raised. Thanks, James...more >>

Im using excel as a DB in asp.net . I get a request with parameteres in hebrew. I read them and then write them to excel file. English and numbers looks fine in the excel file but the hebrew is gibbrish. So its something like: string sName = Request.Form["Name"]; FileInfo f = new FileInfo(XLS...more >>

Hi, This is being called in a C# loop within an ado.net transaction from C# 1.1 code. It is used to write large file data to a SQL Server database in chunks, rather than in one go. I had the stored procedure below, which worked until the image datatype was changed to varbinary(max). ...more >>

Hi, I've inherited an app that currently reads in hard-coded strings (like error messages) from app.config. It has been suggested that these would be better-placed in a .resx file. Is there any definitive thinking on this? Is there a most suitable place that such strings should go? R...more >>

I tried to create StartsWith extension method for Mark DynamicQueryExtension class published earlier. I got compile error shown in comment. How to fix ? Andrus. /// <summary> /// Returns all items whose property name starts with value, case insensitive. /// /// Sample: /// var q ...more >>

I would expect that Debug.Assert() would break into the IDE and stop on the relevant line of code and highlight it. But instead I get a dialog asking if I want to abort or ignore etc. How can I get the behavior I expected?...more >>

Hi I defined a class, which contains a private class with properties to an internal field. The private class is shown by an interface to outside of the outer class. What can I do to prevent, that a variable of the interface typ can be defined to make a reference to the internal class. Other...more >>

How to Encrypt or Decrypt the datas in ASP.net without using Server Memory(Memory Stream). Thanks, Bala....more >>