Hello, I have tried several code sample to send internal emails using the System.Web.Mail but all the mail was delivered to the 'Bad Mail' folder. I'm running 'Microsoft Exchange Server 2003'. If anybody could tell me what I'm I doing wrong or guide me to other techniques or articles? Plea...more >>

Does anybody knows if .net has a library of classes to work with fuzzy logic? Thank you ...more >>

In vb.net its possible import a namespace into a project so you don't need to add it to the top of every class. Is there a way to do this in c# on a project level? ...more >>

I need to make my propertygrid readonly in some cases which obviously i am not able to do. So what i do is i make my propertygrid.enable = false and then tried to make its scrollbar.enable = true through reflection but it does not happen as their is no set in enable property. What i really need ...more >>

Hi,my name's LuoXiaoyan. ...more >>

How do you send Ctrl-C to a standard input stream? Just sending 03 does not work. -- William Stacey [MVP] ...more >>

I want to built a web page which is gonna have multiple languages. Which one is the best way ? Using a Xml file to store languages and their corresponding fields or Using a MS-SQL Database ? What do you recommend me to have best performance about multilanguage web-sites? ...more >>

Hi Any c# direct x book? I can't find any, please recommend thanks from Peter ...more >>

I want "sign" some files with company information but not necessarily all files will be signed. I came up with 2 options: 1 - sign the file itself or 2 - place an encrypted hashtable or key/value pairs in the file and try to read it. The file will only be signed by one person and the receivi...more >>

Hello, How can I use pointers in c#. I am trying to create a link list. Cheers, Po...more >>

hi I am writing a C# windows program which will get datatable from database = through ODBC connection then I show the the datatable on DataGridView. The problem is that before the datatable get returned, the GUI freezes. = I can't move it=20 On the program, I have different queries to get the...more >>

I've a string which needs to be converted to valid XML string. The original string might have characters such as "%", "!", "+", etc. Is there any function available in C# that could do this? Thanks, Gilgamesh ...more >>

When I use this code: public void CreateColumn<T>( string sName) { T thetype = default(T); dc.DataType = thetype.GetType(); ..... } via CreateColumn<String> I fail on the GetType() because thetype is null. It works fine for Boolean an...more >>

Is it possible to force a limit on the amount of CPU a task is taking? I am thinking of writing a simple app that will let me force other applications to "be nice" by only using so much CPU. Is this possible ... does anything like this exist? ...more >>

Hello everyone, I'm wondering if I could get some advice on the best way to build the user interface depicted in this diagram: http://www.senske.com/images/winforms_layout.jpg The gray areas will be static throughout. However, I'd like the blue area to change to a different interface d...more >>

How to copy an char[] to a byte[] , where the char[] holds unicode characters ? ...more >>

I need to design a server application that will handle an unknown number of clients. (currently 25+) The initial plan was to create a new TCP socket connection for each client. When the client needed a piece of information, it would send a request to the server and wait for a response. ...more >>

Hello, I need to get the type of item in the declared generic List. This is my class and my List derrived from List<MyItemClass> public class MyList : List<MyItemClass> { } public class MyItemClass { } Type t = typeof(MyList); how to get from 't' the information about type ...more >>

Hi, I was wondering if there is a quicker way to do this? I have a select all check box for data in a grid and when checked I want the checkboxes in the grid to be checked. I am currently using: foreach(DataRowView DRV in dvData) { DRV["BIT_print_label"] = this.chkSelectAll.Checked; ...more >>

C# .NET 2.0 I've got a Windows Service that works exactly as I expect it to. However, it does rely on a few Configuration settings. If the customer doesn't configure it correctly, the service shouldn't start. So I've put in some try...catchs, but what I'm not sure how to do is not a...more >>

I'm writing an application for Windows XP Embedded. This application requires that the user be able to change the time zone from within the application. I'm trying to do this using SetTimeZoneInformation, but it's not working correctly and I can't figure out why. I'm using Visual C# to write the...more >>

I need use a vb 6 control in my application written in C# but, as I am a limited user (no administrator), everytime I run it an error appears. Why? How can I make it works? Thank you ...more >>

My experience with databases using C# has been pretty limited thus far. Mostly I just use a SELECT statement to populate a DataSet, which is just read-only (mostly for display on a web page), or maybe go so far as to build an UPDATE or INSERT query with a couple parameters and just execute...more >>

Hi all. If I wanted to write something so that, when an exception was thrown, and the stack unwound, the stack trace was captured with the values of the parameters (instead of just the parameter signature for method), is this possible without exception-wrapping the guts of each method? ...more >>

Hi, I am having a lot of problem adding a parameter to a oledb data sorce and execute it here is what I have I call string Pump="Yes" ResultSet = RunQuery("Update CDB_on set Resultx=:Resultx where (Serial_Number='" + row["Serial_Number"].ToString() + "') ", Pump, "U"); in this procedur...more >>

Hi all, I have a DataGridView control in my Windows Forms application. I am binding it to a DataTable in another assembly. The name of the assembly is ActivityListDALC. I want to bind my grid to ActivityListDataSet.ActivityListDataTable in this assembly. I selected this DataTable in t...more >>

Hi, When opening a form with a datagridview, I would like the grid to scroll to the last row. If the row is visible there is no problem. The grid has a binding source which is bound to a bindinglist<T>. I then set the binding source position to the last item of the list, but the grid do...more >>

I have an asp.net page that looks great except for a radiobuttonlist. It insists on being what looks like 12 point. It doesn't matter how I resize it. It stays big. This is a horizontal list and it's for Y and N. I know a checkbox would be best but my boss wants Y or N and will not be disua...more >>

I have an application that I need to hide at startup in the system tray. I found this article on how to do it: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon/html/vbtsksettingformtobeinvisibleatitsinception.asp The problem with this method is that when I call the H...more >>

I would like to get the class INSTANCE name (not type name) of an 'object'. I can get the object (l_obj_ref.GetType()) and then get the (l_obj_typ.Name) for the class name. I there any way of getting 'l_Fred_my_ins' out of the following. .... My_cls l_Fred_my_ins = new My_cls(); T...more >>

How can I clear the current session cache of previously visited webpages? That is, say I start up my app (with browser component), point to www.cnn.com, click on several links, then I want to programmatically clear the current session cache so if the user hits the back button, their current ...more >>

Hi all, I'm creating my own DataGridViewColumn class, and have added a string property to it which should be settable via the Property designer. I've gotten the property to show up, but even if i set a value, the code generated sets the property to null, not the value I typed. Any ideas? T...more >>

What is the real-world value of having a university degree in computer science? ...more >>

When I try to publish my app I am now getting the 401 error message. It used to work. Then someone changed something on the server. We are now trying to change stuff back on the server. I don't know what to do to fix the error message below - when I try to publish my app from my workstatio...more >>

Hello I have a protected variable in a class (Class A) that I need to call from another class (Class B) to modify. I thought what I had to do was create a public method in the class (Class A) containing the protected variable so that the modification(s) can be done. However, when I tr...more >>

hi there, i have to find matches in two sorted arrays. there are two good possibilities as a temporary solution, performing different, depending on the inner structure of the data. but i try to find a better one. ..possibility one ... ...is running through the arrays in a zig-zag, always ta...more >>

Hi, guru, I know GC in .Net will take care of the memory leak, but how about resource leak. Say, in a very complicated programs, some gdi objects are not release properly. It's possible if the program are written by a lot of programs and some dispose pattern are not implemented properly....more >>

Good Day I would like to write a password to a binary file. I am following along in the book and examples I have found googling. However when I open the file in notepad it looks like a text file. Can someone tell me what I am doing wrong? try { if (sfdCommon....more >>

my motivation is as follows: i have to binarysearch several million times an long[] that is several million items big. this costs time, although i use Array.Binarysearch<long>. so i try to keep the Compare-method as lean as possible, as it is summoned several 10 million times. in case of...more >>

I was trying to break some polymorphism, expecting it not to work, but I'm a curious sort. I was seeing what happens when a derived class tries to hide an inherited method with a private new method, expecting an error or warning; I got neither with the result that the inherited method does ...more >>

Hello, I am writing an app that will sit on the desktop. It needs to be able to make a copy of a folder that sits on the server. It will copy the folder from the server and place it in the same directory on the same server. This is the line of code that I am using: System.IO.File.Copy(...more >>

Hi I have a user control that has a property which is a class implementing IList: public partial class MultiPanelControl : UserControl { protected MultiPanelList _panels = new MultiPanelList(); ... } public class MultiPanelList : IList<MultiPanel> { ... } At design time I ...more >>

Hi. Has anyone looked into generic factoring for making database independant applications? (Framework 2.0) I have, but I'm in the starting fase. What I do know is that if you only write code, you are able to make fairly database independant applications with not much more effort that if...more >>

Hi, I will like to access the Address book in windows via C# (.net 2.0), is this possible and can it be done independent of the mail program that the end users are using?? Best Flemming ...more >>

Hey All, I am trying to open an Excel file in a browser by using Response.Redirect. The file is located in a virtual directory. However, the browser title shows the path of the file, which I don't want anyone to see. I was wondering, can I do the same thing using Server.Tranfer, and if so, ...more >>

Hi, I'm a C# newbie. My application (Solution) contains two Windows application projects. They create their own ".exe" output that means there are 2 Main() methods in one solution. Is is possible to do this? If it's possible, how Project A (A.exe) calls Project B to start (B.exe) applica...more >>

Please explain to me. Im writing an app using visual studio professional and sql server express (although I also have sql server with one client licence.) My app uses c# , windows forms, and an sql database. When finsihed I will need to install my app on 12 office machines. I want to in...more >>

I have a textfile with multiple line. How do i get (for example) the 1st line or the 3rd line then change the line to something i want in C#? How do i delete a line in C#... or backspace in a textfile? for example 1st line 2nd line 3rd line 4th Line I want to read the 2nd line and chan...more >>

This is the context... " TableAdapters are created with the Dataset Designer inside of strongly typed datasets." Thanks! Gary. ...more >>

Hi, I would like to re-throw an exception but keep the stack trace from when the exception was originally generated. Is there any way of doing this (using .Net 1.1)? I am not throwing it from the same place it was caught (in fact it is caught in a worker thread which squirrels it away and t...more >>

Hi again I have a little problem with "serializable" a control ... I am creating AppDomain, Assembly and Instance. All works fine. My "base" class for the instance inherit from: - System.MarshalByRefObject - and also my Interface. In my "base" class I refer to a Form. I am able to access ...more >>

Consider following example: class A { public static Method() { /* ... */ } } class B : A { } How can i chcek in Method() if it was called as B.Method() or A.Method()? -- Semper Fidelis Adam Klobukowski atari@gabo.pl...more >>

Hi group, It is tempting to jump into .NET programming, especially C# in my case. But I have no idea what the realm is of code based on the CLR. Please inform me of the following: -what versions of Windows can execute .NET code? -can I deliver dll-files to older Windows versions? (ME, 200...more >>

since generics allow us to implement several IEnumerable<T> interfaces on a single class, I think that "foreach" should somehow reflect that. suppose we have a enumerable class class C : IEnumerable, IEnumerable<int>, IEnumerable<string> { ... we are allowed to enumerate IEnumerable: f...more >>

hello, i m looking for detect the runmode (console, aspx, etc) and adapt my class (delegate) for output writting... thx mcf ...more >>

Hi, I use the ReadXML method in my C# Windows Form project. Here is some of my C# code: xmlDS.ReadXml(curDir + "\\Dept.xml") ; There're 20 rows and 5 columns in the Dept.xml. But now I just want some of the data in the Dept.xml, e.g., DeptLevel >1 AND Status=0. How do I filter the XML or...more >>

Hi, I'm working with VS 2005. I'm using a WebBrowser object that has an even called DocumentCompleted. The thing is this even is called whenever a frame of the page has been completed and I want it to be only when the entire page is downloaded. Any ideas? Thanks in advance. Kfir. ...more >>

Hi, I want to list components on the screen by enumarating the components. For example, I am using toolstripmenu which is a component for windows form.. But when i load the form, the components is null. foreach(IComponent component in components.Components) { //my code is here } W...more >>

I notice System.Windows.Forms.NumericUpDown's ValueChanged event is not always fired, especially edit its text box directly. Is this a known bug or there is something I should pay attention for this control? Thanks, Ryan ...more >>