What exactly are they? I haven't hit that chapter in my VB.NET book yet, was just wondering if i could get a quick over view? thanks! ...more >>

Hi, Is it possible to group items in a listview, as seen in ex. windows xp explorer? Thanks for your time, -- Lasse ...more >>

Hello, I am trying to update a datagrid via an async call, but the datagrid shows up empty. I've checked the datatable - there are indeed rows in it... Here is my code: Private Sub LoadGroup() _del = New TCP.ChangeGroupDelegate(AddressOf _oTCP.ChangeGroup) 'invoke the ...more >>

Hi, I would like to know as how should I proceed if I need to create a system tray in VB so that it can connect to my website. You can see an example here of a similar software here: http://www.helpcenterlive.com/winapp.php The author of the program has created it to communicate with the...more >>

I am upgrading an app from 6.0 to VB. Have a couple of radio buttons that gave me the "may fire when form is initialized" upgrade message. (no problem) Added an Isinitializing property (boolean): ---------------------------------------------------------------------------- --------- Priva...more >>

The following code puts a structure location in an array field: XrefArray(i) = "ArrayIn(i).Field" & RefText.Substring(NumStart + 1) -------------------------------------------------------- Array(i).Field1 is the value now assigned to XrefArray(i) ---------------------------------------------...more >>

The following code puts a structure location in an array field: XrefArray(i) = "ArrayIn(i).Field" & RefText.Substring(NumStart + 1) -------------------------------------------------------- Array(i).Field1 is the value now assigned to XrefArray(i) ---------------------------------------------...more >>

Hello, in my web site i display some links to PDF files. This links are loaded from a database. Anyway, when i click these links the PDF files are open in the visitors browser and in Acrobat. How can i force the files to be downloaded when the person clicks the link? I don't want to use zi...more >>

I need to store numbers in an array and by using a class I need to calculate the average of the numbers entered. I cannot get the text box to return the total of the numbers in the average function - it always returns a 0. What is wrong with this coding? Thanks Carlob1 Dim statistic(50)...more >>

Hi, I have to generate a number representing ID of my record in format like: 2004.00001 where 2004 is current year and 0000x is the number of record added to my database (i.e. 1st record is 00001, 2nd record 00002, 3rd record 00003 etc) However, when I move to year 2005, the counter should st...more >>

I have a DataView with the row filters set to Payee = 'Item' where item is the value of the current cell clicked in a sort tree that i have the problem is the ' character for instance if the value of the cell is Macy's when the computer reads the command it reads Payee = 'Macy's'...more >>

Hi all, Can anyone tell me how I can add a new user to an existing SQL Server 2000 database programmatically using vb.net. Any help will be very much appreciated. I have had a good Google around but have been unable to find anything. Many thanks in advance. ...more >>

I have a column with a columnstyle (datagridtextbox) i wish to make the headers aligment center but the text to be left any ideas of how to do this ? if possible i would like to do it with out creating a custom columnstyle WStoreyII ...more >>

i'm trying to create an item to be added to a listbox. reason being is that the "item" has properties i need to access when it is selected. i'm having trouble displaying it in the list though. i've tried putting a public overrides function ToString() and a public shadows function ToString() as o...more >>

Has anyone experienced the situation where control buttons stop responding to click event handlers? I have a form with 8 buttons that were responding to their click events but are not anymore. Does anyone have an idea on how to correct this problem?...more >>

I converted a C# Upload app to VB.NET and am down to one error and was hoping someone could help me with te error. I would greatly appreciate help from anyone. Here is the error: c:\inetpub\wwwroot\admin\filemanager.aspx.vb(76): Expression is of type 'System.Web.UI.HtmlControls.HtmlInputFil...more >>

Hi, I created a shortcut to a .NET application that is located on a different workstation but when I try to execute the app (through the shortcut) I get an message saying "The application attempted to perform an operation not allowed by the security policy. The operation required the Secur...more >>

Is there a way to have a program (.exe) compiled in VB .Net to run on a machine that do not have the .Net Framwork installed? The OS on that machine can be Windows Me, Windows 2000 or Windows XP. Thanks. duha ...more >>

Hello, I'm working on a windows service that send email using CDO every time a threshold is reached; Norton Antivirus Mail Filter block SMTP connection. I know that it's not a VB issue but I think that somebody experienced the same problem sending mail automatically with the Norton Filter instal...more >>

Hello, anyone know how to create an access database from vb .net ? Thanks Vittorio ...more >>

In the MSN article http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpgenref/html/cpconarrayusageguidelines.asp, they state that "each call to the myObj property creates a copy of the array. As a result, 2n+1 copies of the array will be created in the following loop." I cannot u...more >>

I do a mailmerge and it works fine for word 2002 but not for Office XP. On Word 2003, only the template pops up without the merge taking place.The following is my code. Thanks, Richard wrdApp = GetObject(, "Word.Application") wrdApp.Visible = True wrdApp.Documents.Open(sLetterFileNam...more >>

Hi, I have a multi-threaded, vb.net service which access a database at a high rate and makes use of com interop components (It is running on Windows XP Pro and has been built in VS 2003). I get no error's when in debug build, but in release build I sporadically receive the following error: ...more >>

If one wants to assure that there is only one instance of an app running, then the popular solution is to use a Mutex and a message box, telling the user there is already one running. I decided to go one further, bring the 1st instance to the foreground, no message boxes. Impressive, I thought. S...more >>

Is there is a shortcut key/menu item to collapse all the project folders in the solution explorer. ...more >>

I have an ODBC data adapter going to tables on an AS400. This works - albeit slowly as our database is about 10 GB of information - in one program that I am creating but now I am starting a new project and when I try to create the data adapter I am getting "Object reference not set to an instan...more >>

Hi there, this is probably really dumb, but I am using a dialog as my main form and my startup form is my splash screen - which implements some progress bars to load up some relevant data. When that is done, loading form does this: Me.Visible = False mainform.ShowDialog() Application.Exit()...more >>

Hi Guyz, I'm unable to understand this (AddressOf) error??? In VB6 I have two functions: ---------------------------- Public Function ImageFirstImageCallback(ByVal hWnd As Integer, ByVal iMsg As Integer, ByVal wParam As Integer, ByVal LParam As Integer) As Integer 'Code here End Fun...more >>

I've written a stand alone client VB.Net application. I want to periodically update the software on a client machine. While I can envision either a push or pull method, is there a standard or common method for doing this? If there is more than one method, are there positives and negatives ass...more >>

I have a requirement to use simple project files which were created on 2003 on 2002 version of .NET. This is because the customer site does not yet have 2003 but the course projects were written in 2003. I have loaded the 1.1 framework on vs2002 but need to know if there is a simple or otherwi...more >>

I have a VB.Net application. It runs fine on XP machines but when the user exits the application on Windows 98 machine the task is still active in program manager saying that it is not responding. If you manually kill the application is freezes the machine. How can I fix the problem? Thanks...more >>

I've noticed that controls that are contained in MDI child forms fail to raise MouseLeave events if the MDI child form's MdiParent property is set to Nothing (after it was set to an existing MDI container form) or if the MDI child form's Visible property is set to False (after the MDI child form was...more >>

I want to find out all dll's a process have. I've found example code on the page http://www.freevbcode.com/ShowCode.asp?ID=295 The problem is, the sample is written in vb6, but Application is written in vb.NET. I've rewritten the code for vb.net, but if I run the application, there is follow...more >>

H My worthless textbook gives an example where you create a structure to mimic a Random Access file layout and you are expected to use an instantiation of that to pull data out of the Random Access file. Problem is of course that this is a value type variable and we need to have option explicit o...more >>

Hi, I have 2 dataviews for 2 tables, Master and Detail. I filter dataview1 on a name field which gives me say 2 rows with 2 ID's (ID field). Detail table contains 2 rows with first ID and 2 rows with 2nd ID. Here is what I do to filter the Detail dataview on these 2 ID values: For i...more >>

I have an application that is one EXE with mutliple DLL's. In one of the DLL's (libs.dll) that the EXE has refeneced, I have: Public Class Globals Public Shared gLogin as String End Class This variable is ued throughout my program in libs.dll, and other DLLs. The user then starts up...more >>

Hi, How to Traverse all the nodes of a Tree View Control using VB.Net? Thanx in Advance. ...more >>

Hi, Being fairly new to .net this may a dumb q but here goes... I know As Any is not supported on declares any more... What can I use in place of "As Any" or is there another way of doing this? Cheers Adam...more >>

Hi, If a dataview is based on a table and I filter this view dataview1.RowFilter = "Name Like '" & strCriteria & "'" where Name is a field in the datasource table, I get a subset of this table. If I have an ID column, how can I retrieve the ID values of the filtered rows? Say the ta...more >>

Have anyone fooled around with the Fluent.toc dll? http://www.fluentconsulting.com/components/Fluent.Toc/ This is the code they used to post in C# Send Message Example TocClient tc = new TocClient(); tc.SignIn("myscreenname","password"); tc.Send("mybuddy","Hello!"); tc.SignOut(); And thi...more >>

Hello, Is there anyway to override operators (+,- etc) in VB .NET or is this only possible through C#? I want to create a class that can override these operators. Regards Simon Jefferies Tools Programmer, Headfirst Productions mailto:simonj@headfirst.co.uk www.headfirst.co.uk www.call...more >>

If I have an ADO recordset that was retrieved from a SQL Select statement, how do I determine the table name associated with a particular field? For example if it was "Select [xxx] from [yyy]", then I want something like adoRecordset.Field("xxx").tablename to return yyy...more >>

Hi all, I have a property in one of my classes that represents an optional date. I'm trying to figure out if I can represent Null or Nothing as the value for a Date data type. Branching in the data access layer to send a Null to the stored procedure is no problem, but managing a Null date in ...more >>

Hi I need to pass a 2D array from a function exported from a VB.Net DLL to a program written in VB6 Can anyone offer any advice on how to do this and what datatypes to use. Any pointers to examples would be much appreciated Thanks ...more >>

Hi all, I'm sure this is a really simple question for most. Below is a line of my code that doesn't work: SampleMacro = Replace(SampleMacro, ")", "") The error is "Too Many parenthesis" even though the target of my replace command is in quotes. When I change the right parenthesis in q...more >>

When I launch VS.NET and start a new VB.NET project, I get the following error message. I have never seen it and would like to resolve it. Any help would be appreciated "There is no editor available for 'C:\Documents and Settings\user1\VSProjects\Project\Form1.vb' Make sure the application for...more >>

I know the following code is C#. I'm a vb programmer trying to learn a new language. I posted this in the c# group but never got a response. You guys seem to know alot about all languages and have all the answers, so here it is.. I'm trying to create a custom listview that uses custom listviewitem...more >>

Hello Is there a way in a web form to display a MessageBox? I am not getting Intellisense when I type the word in Any suggestions Sandy...more >>

Hello There doesn't appear to be an iformatprovider for to specify the format to convert a boolean to. i.e. MyBool.ToString("YES/NO") does not work Any workarounds?...more >>

I am writing a database application connecting to a MS Access DB. Should I make the connection through ADO.NET or OLEDB? I think I would actually want to use some sort of ODBC connection, but I can't find the appropriate information. This database will reside on my customer's server instead of...more >>

I am attempting to automate the process within a vb.net windows application of importing a text file into an access database (setting the column seperators, first row being column names and such) but I am not finding examples of this on the net? Has anyone ran across such a thing? ...more >>

Hi everyone, I've got a query: select distinct(substring(beginx,1,5))as beginx from tc201 where lijn is null and isnumeric(substring(vak,1,1)) = 1 or lijn = 'nieuw' and isnumeric(substring(vak,1,1)) = 1 and from this query I get: beginx [X00] [X01] [X02] [X10] [X11] [X12] [X...more >>

Hello Friends I am playing around with the Web Browser control in VB.net trying to build a custom browser The basic navigation is working OK but I am stuck trying to block images and flash files from downloading or displaying in this browser..Can some one please advise as to how to achieve this pr...more >>

I have a Crystal report that, if certain parameters are entered, returns no data. This is fine if I call it from VB6 - it just returns a blank report. However, from VB.Net, it gives me an error message of "Failed to open a rowset". Is there a way to suppress this message? It's going to worry the use...more >>

Hello Can anyone help me with the following: I want to show the page of an pdf (the pdf has only 1 page) on a form, and the size of the pdf in a label. Thanks ...more >>

Hi!! I have a small problem... I have data in excel and want to excess it convert into sql table with certain validations .How to do it... Any help.. Thanks Pushpendra ...more >>

Hell I have problem with lond path names in vbscript. For example I would like to run a program that is in "D:\program files\putty\putty.exe" when I put this path to the obj.Run("...") it returns error that it couldn't find that file. When I copy this file on d:\... it works fine, but it's not what...more >>

H What is Java Webstart counterpart in .NET Regard /Niklas...more >>