Hello Group In the old days i'ev created a VB6 appl. that was able to obtain the underlaying control under the mouse pointer. I would very much like to do that in a C# application. I'll use VS2005 and .Net 2.0 I'll know of the solution to code each control for the mouse over event, but I...more >>

I've checked the Google Groups archives and the web and not found the answer, though I've found hints that it's possible. How can I programmatically change the color scheme on Windows XP? I know that I can access the colors via SystemColors, but I actually want to be able to switch from the d...more >>

Hi, I am having a treeview application in dot net using windows application in c#. This treeview appliaction fetches its all nodes from the database.At the same time I am storing some data related to that node in database.Now I have to drag and drop the node from the windows application to...more >>

I am playing a .wav file in my application i.e running successfully on Windows 2000 Prof n Windows 2000 Serv. with Framework 2.0 Now I have installed Framework 2.0 on Win 98 and when I try to run the application its running fine but the .wav file is not running i.e I cannot hear the sound. Ca...more >>

hi, I have a requirement to convert my RPG program to .Net. Is there is any one knows about the BEST way to migrate RPG to .Net. Do we need to do manual coding for migration? Is there is any free tool available in the market. ? Whether microsoft given any free tool to migrate RPG to ...more >>

The MS SQL has a column using DEC(11) which is an unsignedInt. What is the correct way to declare the unsignedInt variable in c# to insert this value to MS SQL? recall from SQL2k BOL Use the int data type to store numbers in the range from -2,147,483,648 through 2,147,483,647 only (requir...more >>

I have written a program to hold a sales contact db. It is written in c# express. an update is sent from head office in xl format, i need to import only the new rows to an access database. I have gotten this far: a separate OleDbconnection to each source, which reads the entire data ...more >>

I am wanting to make a C# interface with a SQL backend for creating a table/room layout design. The concept would be the same as a restaurant or bar style, except the user will create the design and be able to add and modify the layout of the location. I am using .Net 2.0 and want to allow us...more >>

Hi All, My background is that i am new to C- Sharp and OOP. I have been working with it for about 2 Weeks. I do have good experionce in developing in things like VB6, COM, ASP, JavaScript and i have done some development with VB.Net but it was not really done in an OOP fashion. i have Been ...more >>

When starting up, my app needs to pull some information out of a database, which it does. It also needs to quit if the SQL query returns no data. All the database checking stuff is in a private void that is called right after the InitializeComponent() on the form. The code in that function ...more >>

Observed a weird behaviour with object references. See code listing below: using System; using System.Collections.Generic; using System.Text; namespace PointerExceptionTest { /* Desc: Apparent weird behaviour of encapsulated reference types getting "lost" upon instance rene...more >>

Hi All, I have a question concerning serialization in .NET. If I serialize an object to a database and then I change the object in code (i.e. add a property, rename a property, delete a property) will my object deserialize correctly? Will it throw an exception - or will it deserialize w...more >>

hello, i am accustomed to using the string.Format method in this way: string foo = string.Format("The formula is {0} * {1}", inputOne, inputTwo); but now i am trying to do one where i need squigley brackets in the string, like so: crystalWhere = string.Format("{v_ChangeHistory....more >>

I am reading a text file with a streamreader. I parse out path and need to use that path in a sql statement. The path is in the file as \\servername\share\folder\filename.txt. When the line is read, it is in the format of \\\\servername\\share\\folder\\filename.txt. When I try to use thi...more >>

Hello, I´ve a simple question about existing data structures/ collections. Is there a way to sort a dictionary (or any comparable collection/ data structure) by values instead of by keys? For example if you have a dictionary with words as keys and the frequency of these words in a text...more >>

Hello! While in-between sessions at the Tech-ED in Barcelona, I overheard a discussion between some developers. The subject of the discussion was code layout (i.e. how each developer formats and writes code). What are your takes at the following two examples? Which one would you choose and ...more >>

yello... Assuming a 32bit system for this Q.. Is there any proformance differences between an *int vs IntPtr ?? I know that the IntPtr can be an Int32* or an Int64* (or more) depending on the hardware. thanks in advance. ...more >>

I find myself doing things like this all the time: if ( SomeObject != null && SomeObject.AnotherObject != null && SomeObject.AnotherObject.YetAnother != null && SomeObject.AnotherObject.YetAnother.HelpMePlease != null) { // Do Something } Surely there must be a better way that I am ...more >>

I learned today that an insert statement I am generating out of a DataSet which gets populated straight from SqlDataReaders is not giving me the same precision that it is stored in the database with. Table 1 (Origin table) Nov 8 2006 5:19:10:617PM is being stored as Table 2 (Destinatio...more >>

I'm trying to figure out a way to list several items in a listbox and let the user select any number of items in the listbox. I have tried to code in the items as bitwise items but all it stores in the database is the top item in the listbox. How can I get the listbox to add all the bit va...more >>

Hi All, I was wondering if it is at all possible to open a chm file from within an ASP.net application, and if so could you provide a snippet of code that demonstrates this? Thanks...more >>

I created a very simple web page in asp.net. there are only a textbox and a button on the page. when the page loads into web browser there is current date in the textbox. but the date can be changed by user as well. now, when you press the button the date should be inserted into a database. ...more >>

In a RichTextBox, how would I implement... ....bulleted paragraphs like in Word? Is there a provision for this or am I on my own? ....spelling check? Presumably using COM to communicate with Word which is installed on the same machine. I know how to do it myself on a low level and am ...more >>

Hi, I created a child dialog to tell the user that there is a loading of data from the database. When the loading is done, the child dialog will close. The child dialog contains a custom control and the child dialog with the custom control show up fine if the dialog is called as a modal state...more >>

Hi I am able to embed Excel into a WebBrowser on my Dev machine but on a client machine an instance of Excel starts in it's own window outside of my form. I have used the WebBrowser with VS 2005 and the one with Office and get the same result. I have use the MS example from MSDN and get the sa...more >>

Hey guys, I have a "TabControl" component on my screen. I'd like to be able to control the focus of the individual tabs through a different button (which is working). However, I would like to be able to prevent the individual selection of the tabs from changing. I can't seem to find an...more >>

I am running a C# (2003) app on a Citrix server (Windows 2000, SP4), with SQL Server 2000 and the database. Program runs fine, then, without explanation, a user will attempt to start the app, and get a popup that says "Fatal Error", no subject to the message, just those words. Then the app c...more >>

Hi, Below is a hacked up version of an example I found on MSDN. My only change was to add a third thread and some Sleeps. That's where my question(s) comes in. In the original it seems to work because Thread1 waits on Thread2 and vice versa, although I can't quite see how. Disabling Thread3 and...more >>

Hey there, Anyone knows a clever method for knowing the length of the digit after a decimal point in a standard C# decimal value, WITHOUT use of any string formatting. Example: 5231,12231 <- Lengt = 5 Tnx for your attention hope you are capable of helping. Kind regards Stefan ...more >>

In a windows form I execute a lot of HttpWebRequest. Each request run in his own thread and every requests have the same target server. Looking at netstat and in the web server logs it seems to me that only 2 connection are opened even if I have 100 threads. Do you know how can I modify this li...more >>

Hi, I'm writing an PowerPoint Add-In using C# which adds a toolbar and a button. When the user clicks the button, an activex control is inserted into the presentation. Is it possible to somehow type cast the Microsoft.Office.Interop.PowerPoint.Shape or the shape.OLEFormat.Object to an in...more >>

Hi, I am quite new using csharp. I have a axWebBrowser control in my windows application. The axWebBrowser will contain a textbox. Is there any way to set focus to this text box from my windows application ? Thanks in advance. ...more >>

Hi to all, we are building a fairly complex system here in work, and we couldn't imagine from the start that we would spend too much time just to transfer safely some kind of characters from one network point to another... I explain: One part of our system is a custom, multithreaded...more >>

ok - C# contractor on first contract getting this bad boy: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." I see this intermittantly (maybe every 100 requests or so) in an ASP.NET 2.0 application running on Windows Server 2003 EE. I...more >>

hi all I m using the visual studio designer to create 1 Dataset with 1 table with 3 columns : Id, Name, Birthday. Once this done, still with the designer, I m creating a datagridview and choose my dataset as DataSource. magic : the columns appear in the datagridview. Still with the des...more >>

In an application in which FileShare is set. Is it possible to go to say a file conntrol block to ascertain the condition of the file, ie. if someone else is working with the file? Or is is it necessary to do all writing (not reading) in a loop in which the user is kept till the file is free a...more >>

Hi there. I would like to know how can I test if a Form exists. This is the situation: I have a single Form in my application. My objective is, when I minimize the form, it will disapear and a TrayIcon apears in the task bar. When I click that icon, the form apears again. The problem is...more >>

hi , i have a question to ask regarding deleting the worksheet basically i have written code which find the select worksheet which work fine but it didn't delete the worksheet from the workbook and i dont know what i did wrong. Here is my coding book = app.Workbooks.Open(dir, Type.Missing...more >>

How to I save the contents of clipboad to the variable and reassign the content back to the clipboard ? ...more >>

I am looking for a way to get the list of printers and there port name so I can populate a combobox. What I need to do is get the printer name and if it is a network printer the path and share name. Place the printer name in a combobox and the share name as a value in the combo box which...more >>

I know c# does not allow global variables so I am wondering the best way to achieve this. On start of my application I want to read values from the registry and then different forms will need to access the data. What is the best way to achieve this....more >>

How di I dynamically build and 2 dimensional array and assign this array to a combobox. 1 item will be the displayed details and the other is the value I need returned....more >>