I would think it should disappear on its own when the application ends - if you have a main form and others, they'll all close when the user kills the main form. In any case, I override the OnClosing method and set notifyicon1.Visible = false, but still, after my program ends, the icon is left ...more >>

Hi there, I've created a strongly-typed "DataSet" using VS. If I save the data via "DataSet.WriteXml()" and later prompt my users for the name of the file in order to read it back in again (using "DataSet.ReadXml()"), how do I validate that the file they enter is valid. That is, while "Da...more >>

Hello i have a textbox on a form1. I want to pass the name of that textbox as a paramter to another class (not a form class) and once gotten this paramter i want to update the textbox on form1 and display text data as data is retrieved via this other class. can anyone point or provide so...more >>

Hi All, Can some one explain me how these blog servers keep blog content? Is it via a database? Is it via a XML file which save in a local directory? I was asked to develop a back end service for a blog/ wiki. Thanks, Nirosh. ...more >>

Hi, I think this is an odd situation. Sometimes the VisibleRowCount is correct while sometimes it is 1 more than the correct number. Especially after I did the DataTable.Rows.Remove, DataGrid.DataSource=DataTable. Would someone give me some advice? Thanks for help. Jason ...more >>

Hi, I have a few forms in my application. One of the forms is to confirm some action done on the other form. I want to make sure that the user clicks this form (by choosing 'yes' or 'no') before continuing to do anything else. In other words, I want to keep the focus of the user on this form ...more >>

According to Troelsen in "C# and the .NET Platform" "Boxing can be formally defined as the process of explicitly converting a value type into a corresponding reference type." I think that my biggest problem with this process is that the terms "value type" and "reference type" mean something ...more >>

Hi, I'm very new to programming so forgive me for asking the dumb question. I'm trying to develop a database application using c#, and I'm using the northwind database. I'm currently using visual c# express edition 2005 as well as sql 2005 express. Here's the thing I've been trying to figur...more >>

hi In a componenet class i have a property with the attribute [System.ComponentModel.Browsable(false)] public int Vsetting { set{....} get{...} } When i use the component on a form, the property is not visible in de peoperties window of the designer (thats ok) B...more >>

Hi I've seen a couple of applications which produce a list of all of the devices which have ever been connected to a PC (via USB and FireWire at least), what they were, when they last connected, if they're still connected and so on. I'd like to have a go at implementing something like this ...more >>

I have a table with field of type image which has binary data in it. data could be of image/doc/text/etc type. I need to send this data as file attachments in emails. I should read the data, store it in some temp file and then attach that file? Is there any code? Thanks ...more >>

Hi All :) Well this is not only for C#, but in VS2005 the color properties of the controls (like backcolor,forecolor...) are limited to what they have by default in the System, Web and Custom palette.. but in Custom i only see squares with colors by default and some in white... don't th...more >>

I have a Combo Box, with DropDownStyle=DropDownList. I have a requirement that a user not be able to click certain items in the dropdown, e.g. the dropped part of the combo box should act like nothing happened. To that end, I inherited the from IMessageFilter interface and implemented ...more >>

thanks for taking the time to review my request. i have a user control with a radiobuttonlist. i would like to click on one of the buttons and raise the event from the button and catch it with page (eventually pass the event results to another user control). i found an article on the web that ...more >>

Hello, I have this problem, I have populated a multiselect ListBox, but now I need to retrieve selected values, and use them as a parameters on the url e.g http://www.aaa.com/Dynamicpage.aspx?states=(value or values) - which will be selected from this ListBox, how do I separate multiple values ...more >>

After 23 years as an independent programmer (most of them with Turbo Pascal, Delphi, and C#) I'm taking a full-time job, doing straight C on embedded Linux. I start a week from Monday (Jan 22) and will probably stop monitoring the .NET newsgroups, as I'll have to find time for a two hour round t...more >>

I have no experience with Active Directory and need to programatically read which user is logged into the domain, the groups they are in, and any other pertinent information. Can anyone get me started? I.e. what's the namespace, what does the masic code look like? Thanks, Ron ...more >>

I'm maintaining some older code, apparently created in Vis Studio 2003. I have Vis Studio 2005. When I open this solution, it says it has to convert all the projects. There are some problems with the application and what I'm trying to do is recreate the original application from scratch in ...more >>

This sort is sorting on strings, but I want to sort on an integer value. How can I tell it to sort by number? ...more >>

Is there a way to create a 10 characthers or less, alph-numeric string which is unique. I can't use the guid since its longer then 10 characthers. Also i cannot use a random number, since being random does not mean that its unique. ...more >>

After placing several images in an embedded resource file, the size of my program's executable has jumped considerably. I don't need these images until a specific dialog pops up, and it's possible that may never happen in the majority of cases. What would be the best way to go about placing ...more >>

try catch blocks create a new scope i don't think that they should for example, to add error handling to this statement: int x = 1; you have to rewrite it as a seperate declaration and assignment: int x; try { x = 1; } catch {} maybe if try catch used different braces to show n...more >>

my stored procedure: create procedure ps_title @Title nchar(15) AS SELECT ,Title FROM books Where Title = @Title this is my code. i'm passing variable to sp and getting no results. protected void Button1_Click(object sender, EventArgs e) { SqlDataReader rdr = ...more >>

In VB6, there was an "easier" way to set the tab index properties of all of the controls, which was to start at the last control, and work your way to the first control, setting each controls tab index property to zero, which would increment the controls you just set by one. Obviously, it was so...more >>

Howdy all, I'd like to know how can I get the Eletronic Serial Number of my handheld. Which API do I have to access? I'm developing using MS VS2003 C# (Compact FrameWork) for a Intermec CN3 handheld. I don't know if I can access via Windows API or if I have to access using Intermec API. ...more >>

Hey, How can I test if there is an connection-exception when using database application block from the enterprise service? I stopped the sqlserver. I do now the following : Database db = null; IDataReader reader = null; try { db = DatabaseFactory.CreateDatabase("Logging"); } ...more >>

Hi, My native C++ function creates a dynamic array. I'm marshalling it to managed code and got to delete after. How to make it: c++ code: void CreateArrayInside( pTestStruct &TestStruct, unsigned int &size) { size = 5000; // test structure TestStruct = new CTestStruct[s...more >>

Right-click on a file (e.g. a .wmv file) in Windows Explorer and there's the "General" tab with Date Created, Attributes (i.e. whether the file is read only or and.or hidden), and other properties. I can get at these values programatically via the System.IO namespace and the FileInfo method: ...more >>

Hi, i have a problem with the controls .i have to validate Form1 Radio button option is checked or Not in the Form2. even after checking the radio button also in FOrm2 it is always taking as "False" only. please see the following code where i did wrong. I ahve created A Visual C# .Net project...more >>

Hi, I thought i should give a better explanation to my second 'bug' in my previous post (Bugs in VS2003 SP1) because it's taken me ages to figure out what was going on. Basically, one of my project classes 'Tokenizer' had a property '_Token'. When i hovered my mouse over a line of code with ...more >>

Can anyone help me about how to create combo box with its items as checked boxes or radio buttons. This has to be done in C#. I have seen something similar to this named custom combo boxes but they are in MFC I have to remain constrained only in C#. ...more >>

Hi, Has anyone else experienced weird errors after installing SP1? These 2 are starting to really get on my nerves: 1) If i have a watch set on an expression rather than a variable, when i launch a debugging session the watch window flickers and the program takes ages to launch (due to th...more >>

Hi, I am using a windows service. Now I need to access some data inside this service with a windows forms application. As an alternative I could use a web project to get what I need from the windows service. That windows forms app or the webapp will sit on the same machine. Am I right in th...more >>

f.CreationTime.Hour.ToString() + ":" + f.CreationTime.Minute.ToString() + ":" + f.CreationTime.Millisecond.ToString(); Which produces a format like 9:30:124 Now I'd like to change this slightly. Firstly I do not need to know the creation time of the file accurate to the thousandths of milis...more >>

Hi all, With the advent of Service Pack 1 for Visual Studio 2005 we at last get a possibility to convert our old ASP.Net 1.1 web application to ASP.Net 2.0. We converted it. And we were unpleasantly impressed. There are many just praises about reduced ViewState but what about another controls? ...more >>

Hi I need to parse strings to enumerated types for several different enumerated types. Im doing this for each of them, bu I wonder if there is a way to write a generic method that also takes the specific enumerated type as an argument. Is it possible to pass the typeof(enum) as an argument...more >>

I would like to take a "screen capture" of just a Form. I've done the following: internal void CaptureScreen() { Graphics g1 = CreateGraphics(); Image MyImage = new Bitmap(ClientRectangle.Width, ClientRectangle.Height, g1); Graphics g2 = G...more >>

I use a table adapter to add rows to a database, using Update(); After adding a row to the database and closing the application, if I run the application again, and call Fill(), I can see the new data, as if it appears in the database. However, if I open the database itself in the server browser...more >>

oop Q: If I serialize an interface array, then later deserialize it, do I need the original assembly to deserialize it??? Eg: // Inside of "globaly assembly" public interface Ianimal { string myColor { get;} } // "Dog Assembly" Inside of dynamicaly loaded assembly. //...more >>