Visual Basic .NET Forum

Hi, Using VB.NET Framework 1.1. Is it possible to programmatically pop up a tooltip for a control without positioning the mouse over it? That is to say do it with code to e.g. show an information for a duration of time instead of a msgbox. -- Thanks in advance

Does anyone know where I can find a sample app that demonstrates running the app from the system tray..? I want all of my UI elements available from the context menu in the tray.. tia

Hi everybody, I've run into a problem when using the reflection assembly on COM objects and been browsing around the net for some while. Apparently a few has asked the same question though no answer has ever occoured. This is what I'm trying to do: I wish to build a function that crawls any COM object (interop). I did shortly examine...

On a control's initialization I need to set a variable with events to its containing form, but can't use OnParentChanged or OnLayout if it's parented by another control. I could do something cheesy like do FindForm on the first visible change, but I thought there might be a more direct, built-in way of doing this. Is there? TIA, Bob

Hi, I'm working on a WebService project. I'm trying to validate data before they are updated to the database by handling the RowUpdating event for a SqlDataAdapter. The data being handled has DataRelation which is related to another DataTable. As for that, I also need to retrieve the DataRelation from the current row being updated. I...

I'm working on a VB .Net project. I tried to make the project strong named and I get the following error during building. Performing main compilation... vbc : error BC30140: Error creating assembly manifest: Error reading key file 'BaseFormLibrary.snk' -- The system cannot find the file specified. vbc : error BC30140: Error creating...

Does anyone know of a good .NET article, sample, etc to demonstrate creating an object model, one where you have one externally creatable object with a hierarchy of dependent objects? For example, the only way to create a new Spoke object is to first create a new Bicycle object, add to its Wheel collection then add to its Spoke collection. ...

Hi, I'm having problem with ComboBox. I'm trying to force the ComboBox select nothing by doing this, myCombo.SelectedText = "" myCombo.SelectedIndex = -1 but in vain, as the ComboBox will automatically select the first available selection. If I make the ComboBox visible before setting the .SelectedText to "" and

Hi! Sorry for my many postings on this Newsgroup. I am new to ADO.NET and I got Sceppa's book on ADO.NET. It's a great book but covers a lot on the DataAdapter and Offline Data. Now, if I want to Insert Data into my MSDE Database, can I do it without using the DataAdapter? Here are the steps I use to insert the data. Open Connection Add...

..net 1.1. i have a fairly large vb.net application. there is an object called objPrototypes that contains all the api calls we use. the api calls are to a custom C++ .dll library. the app works great in xb. in 2k it will work a while and after issuing several api calls, it will randomly result in the objPrototypes object being set to...

I'd like to know how can I put up a confirmation question when the user tries to delete a row in the datagrid by clicking on the row header and pressing the Delete key? I have found this code on a windows forms FAQ site : Public Class DataGrid_Custom Inherits DataGrid Private Const WM_KEYDOWN = &H100

Hi-- Please help. What is the default access modifier value for a Sub or a Function when one has not explicitly been set. In MSDN, in "Access Types", it states... "If no access modifier has been specified, the default access type depends

Somebody converted the DSOlefile ( dsofile.dll ) example to VB.Net ? It seems that the automatic conversion is NOT complete correct ! I received all (Ms-Office) document properties except the preview (oDocProp.Thumbnail) and the document icon (oDocProp.icon).

Hi... I'm trying to find some code samples that will show me how to capture non-character keypresses in a console app. I've tried the standard stuff, such as console.read and console.readline, and I've tried ConsoleEx which does a great job, but still doesn't handle non-character keys like CTRL and the arrow keys. I've read the character...

Hi all, I have to problems concerning datagrids, tabcontrols and scrollbars: 1) I created a form with a TabControl. This TabControl has two TabPages: the first with a datagrid to browse database records and the second with some controls (TextBoxes, OptionButtons...) to edit these records. When the second tab is shown and I use the...

Hi all .. how can i work with DataException ???? i will try to explain my problem perhaps someone could help me ... i have a typeddataset, and when i try to add a new row, When i press the update button it throws an DataException, more precisly NoNullAllowedException.

I know I can get the current username through the System.Environment class, but I can't seem to find where I can retrieve the user's role / permission level (i.e. Admin, power user, etc). If anyone has done this and can shed some light on the issue I would appreciate it. TIA, Matt

I have a general question for which I would like to get some general input from the online community. I'm building an asp.net web application that will make extensive use of a SQL Server 2K database. One of the relationships in this database is many Tasks to a 1 Project. I can see two basic ways to manage this in my web application: The...

Hello, What's the equilevant of VB6 shell funtion in ( Shell(pathname) ) .NET framework. Thanks

Your opinion please! Do end-users know, think they know, or even care, what .NET is.? Do customers hear the word ".NET" and think its the latest thing and must only have .NET applications, even though they've not a clue what it means? IMHO the customer shouldnt really care as long as the product meets their requirements it's none of...

With Deft Fingers, "Jan Driesen" <jan.driesen@tiscali.be> wrote: I've an app with a bunch of Control Array of Buttons. I'll use code from my App using 5 buttons as my example: 1) I've Dim them as a button in my Form Dim btnUsrMonday() As Button ' User Monday Buttons

Hi everyone, I create a windows service and its installer in VS Net. but when I try to install it on command line, "installutil myservice.exe" ,I kept receiving the error message: System.ComponentModel.Win32Exception: The account name is invalid or does not exist, or the password is invalid for the account name specified

I am writing a user information update page and I populate the form on Page_Load with the current values of the user's name, etc. When I change the text in one of the textbox controls (e.g., change the user's middle initial from M. to X.) and submit the form, the value seen for middleinitial.text in the Public Sub that is executed when the...

I want to pull my contact list (personal one) from the exchange server into a local text file. I know how to write stuff into a text file, just getting it from an exchange server is my problem. I've been looking at webdav as a solution to this, but i dont know much about how to use webdav or it with exchange server. Right now i'm working...

I am having a problem with web forms I have uploaded to my hosting site not running the most recent version. The .aspx file I have FTPed to my server has the current code I need to test, but when I view the page in my browser, I see a version of the page that I have deleted and copied over several times in the last two days. Is there a...