I've got a procedure designed to modify the contents of a single row in a data table. The code appears to work fine in that it compiles and executes without error and the changes are reflected in the dataset. However, when I close and re-open the app, the changes are lost, which means that the...more >>

I have a share setup on the server that is actually c:\data\share. So the client sees i:\, but on the server that is actually c:\data\share. Is there a way, from the client, to know exactly what the share is from the server's point of view? Darin *** Sent via Developersdex http://www.d...more >>

Hi.. I am working on VB.NET (windows forms) and i am using ADO.NET to deal with databases. I have 2 databases say dbA (on Server1) and dbB (on Server2). I am reading data from dbA and writing it on dbB. After i am done writing, i delete information from dbA. Is there a way i can perform this...more >>

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I'm using aspose.words (www.aspose.com) to extract regular expression matches from multiple files within a folder. Unfortunately, aspose.words does not support pre-Word 97 documents. How can i retrieve the Word version of the .doc file, so i can avoid errors? Thanks. ...more >>

I have a class which processes for a relatively long time. I want to enable other classes which call this one to receive process messages if they wish. The called routine (the one defining the delegate) is named CASSPrintSQL in namespace CASS. The code is: Private Delegate Sub DisplayMess...more >>

I have an application that when I run it in VS 2005 debug mode it operates faster (10 fold) than when I execute the exe directly from the bin directory. The one operation in particular in which the performance differs so greatly is when the app makes a call to another service and inserts the re...more >>

Hello everyone- I am hoping a couple of you will have some ideas on this one... I have a webform created in visual basic 2005. Basically, the webform gather answers to the questions asked on the form and included a couple free type multine textboxes. When the user presses submit an messa...more >>

Given that variable dt = "3/31/2007", why does it produce the following exception on some machines? It works fine on my PC, but others have sent me this exception information because it threw up on their PC. DLDT.Columns("Date").DataType = GetType(Date) dr.Item("Date") = Date.Parse(dt.Trim)....more >>

In control panel/Display/Appearance/Effects if : 'Use the following method to smooth edges of screen fonts' is checked and ClearType is selected in the combobox (no problem if Standard is selected) I get a crazy font display in parts of my picturebox. Do you have any info regardin...more >>

I'm developing a dll with VB.NET and Visual Studio 2005 to be used as a plugin in Skype. I'm supposed to make my dll export the entry point of a procedure called DllInitSkypePluginB. Anyone now how to export an entry point of a procedure in a VB.NET dll? The definition of DllInitSkypePluginB...more >>

I'm fairly new at this and trying to create a dynamic menu. I use the function getMANames to put all the submenu item names into an array. I am confident this sub is working properly. When I look in debug mode the object insertJobMenu is reporting the correct number of items. If I look at on...more >>

Hello, I am writing some VB express code to collect data for a gas safety certificate. Data that needs to be collected include name and address, plus Boiler Perfomace and safety information. And the end of this data collection I need to print out a certificate that looks a little bit lik...more >>

The application is hidden and at times it must show a form that should appear at the top of all other windows and its text box should have the focus no matter where the focus was prior to the window becoming visible. Once the text has been entered, the form should become invisible again. Wha...more >>

Hi I am publishing a vb.net app to a remote ftp/web site. This seems to go successfully. Once I try to install the app by using the url http://www.mydomain.com/publish.htm and pressing the Run button, I get the '(407) Proxy Authentication Required error' and application install fails. Wha...more >>

Hi Is there a way to run a sub in a separate synchronous or asynchronous process? One of the reason I would like to do that is I do not want this process to effect the main app and also to cleanup the process resources completely after it end. Thanks Regards ...more >>

Hello I try declare Dim db as New BtDatabase() and execute metod db.open(par1,par2,par3) but i get error : System.NullReferenceException was unhandled Message="Object reference not set to an instance of an object." Source="Microsoft.VisualBasic" StackTrace: at Microsoft...more >>

Since there is no 64-bit Jet (MS Access) OLEDB driver, what is the recommended solution for this delimma. Our application uses SQL Server as the daatabase engine, but we have about 5 meg of static data stored in an Access database. We chose that because it is easy to read, and can be password ...more >>

Hi I need to store the path to db in my app. I have used app setting for this. Unfortunately various clients have different db paths and I have set them up once on each client location. The problem is that when I send them updates and they uninstall the old version and reinstall the new versio...more >>

Hi I need to store the path to db in my app. I have used app setting for this. Unfortunately various clients have different db paths and I have set them up once on each client location. The problem is that when I send them updates and they uninstall the old version and reinstall the new...more >>

Hi everybody... i need help with this issue: i have a textbox control with the focus. at side, i have a datagridview control populated with some data. i need to control behavior of dgv control from textbox. when i press pagedown/pageup key (in textbox), i need to send that key to dgw, to move...more >>

Hello, I made a vb calculator just a simple one using code like this. ansmult = txtinput.text * txtinput.text ansplus = txtinput.text + txtinput.text but my calculator works like this. I enter in a number say 20 when I hit the + , *, -, / operator signs, the 20 goes away from the testbox ...more >>

Hi What is the vb.net equivalent of vb set x = nothing? Thanks Regards ...more >>

Hi Is there a way in vb.net to zip files? Thanks Regards ...more >>

Hi Can I add classes written in c# to my vb.net project? If so how can I call c# classes? Same as in vb.net? Thanks Regards ...more >>

I'm trying to use for the first time WebRequest, but all the simplest examples that I find in the documentation or Internet don't work. For example this: Public Shared Sub Main() Dim request As WebRequest = WebRequest.Create("http:// www.google.com") Dim response As WebRespon...more >>

Sorry if this angers anyone. I'm posting here and to the .NET group. I am unable to get a return value from a stored procedure in .NET using the following Sproc and .NET code Here is the code in my stored proc. set ANSI_NULLS ON set QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[sprocRe...more >>

Hi How can I check if the value stored in a datetime variable is over an hour earlier than current date time? Thanks Regards ...more >>

I am getting a protocol violation error from an IP product and after some searching I found the following fix: <?xml version="1.0" encoding="utf-8"?> <configuration> <appSettings> <!-- User application and configured property settings go here.--> <!-- Example: <add key="settingName...more >>

Hi How does one send email from within a vb.net app? Thanks Regards ...more >>

I'm working on a Windows Explorer-like application. What is the best way to find out what application is set to open a particular type of file? Is there a function to do this? Do I have to go through the registry and check ClassesRoot? Also, once I have the application, I want to be able...more >>

Public Class MainForm Dim frm As DetailFrm '--frm is a Form Level variable Private Sub MainForm_Load(...) frm = Nothing .... End Sub Private Sub btnOpenDetail_Click(...)Handles btn.Click If frm Is Nothing Then frm = New frmDetailData frm.Show() Else ...more >>

(Not that size matters, but ...) I have a program which is getting too big. So I'd like to split it into several source files. I know that I can create a ModuleX.vb source file which looks like this ... Module ModuleX Public Sub DoX() MsgBox("message from DoX") End Sub En...more >>

Hi all, I'm writing a service that needs to discover the full directory path for a given locally based share at startup. IOW, I need to have the service running on someserver to take \\someserver\someshare and give me c:\somedir\somedir\shareddir. I'm not quite sure where to start readi...more >>

If Not st1.Equals("something") then Do Something Else End If if str1 != "something" Then ... I realize that != is C# stuff and/or can be also be used in Tsql, but is there any implementation of bang ! in VB.Net? Just checking. Any samples appreciated. Thanks, Rich...more >>

Hi! I am having this problem. I have two strings: george.bell@krypton.co.au liana.sarin@lertin.gov.uk I want a general expression that will extract the following from the two strings above: co.au gov.uk Does anyone know of how to do this in a few lines of code using regular express...more >>

I have a csv file here that is output from another program. Once this csv has been completed the information needs to be extracted in multiple formats into a formatted excel spreadsheet (sheet a is ordered a certain way with specific information and summary rows, ...) I created the code liste...more >>

There are two classes 1) Key - contains some public variables, one method "Reset" and one event "valuesReset" which is raised by Reset method. 2) Keys - this class is collection of objects of class 'Key' and it is inherited with ReadOnlyCollection(Of key). I'm pasting the code here Class...more >>

Hi, I am using a eventgenerator class that accepts HashTanle as one of its parameter. I have to pass NULL for that value in my vb.net code. I tried DBNull but it is not working. Could anyone help me with this ? Regards, Rajeev ...more >>

Hi Please let me know how to do the following here, i have property and event in a class, now i want to fire the event from the property when i get value, how to pass args for the below event would you FILL UP THE (?) MARK . Property required() As Boolean Get ...more >>

Hallo, I'd like to match a given string, let's say fghilm in a bigger string, let's say abcdefghilmnopq but I'd like to have also a toleranche, let's say about 1 chars so if we have if in the bigger string one different char, like z in abcdefghzlmnopq or one missing char, like...more >>

Hi All, I want to implement an 'generic' undo by placing a copy of a control in a stack using System.Collections.Generic.Stack. Basically this way I don't need to know if a user has edited text in tree, added or deleted a node etc, added items to a list box etc etc. I just push the control...more >>

Hi, I have a project which has a very complex main interface,whose controls will be located in more than 10 layers of containers. How should we do to make every one do their work side by side? Is it a proper way to create MDI form? Thanks for any response, Peter ...more >>

I have been trying for the last couple of weeks to insert a new record to a database. I have been able to update the existing records but when I try to insert it does nothing, not even give me an error code. Below is a sample of what I've tried lately: Try DataAdapter.InsertCommand.Parameters...more >>

Whenever I run this code, I get an extra row added to my table with a primary field text of "System.Object". This code is intended to simply add a single row to a single table based on the value in the tbOrd.text textbox. Instead, two rows are going in - one is intended, the second is not. An...more >>

Hello, I have a 3-level class hirarchy: 1=Grandparent 2=Parent 3=Child The Grandparent has a method called OnPaint which I want to override from the Child class. I can do this, but how can I call the Grandfather's OnPaint() method inside this newly overrided one in the child class. ...more >>

Maybe I'm missing some fundamental unwritten law of OOP, but I was wondering why the VB.NET compiler doesn't take advantage of the fact that all .NET objects, being derived from the Object base class, have a ToString method defined on them, when a reference type is used in an expression where a ...more >>

Hi frnds Here i stuck with big .. problem i have developed one billing system software now the problem is when ever i modify something in software , to install the new setup i has to uninstall previous s/w so is there any way to create application or setup or update pack in this case t...more >>

Hi there, When there is a new entry in the event log I will create a new instance of a form which shows the information in the event log. However, once the new form is created, my application becomes unresponsive. Can anyone help me with it? Public Overridable Sub NewMessageArrive...more >>

Hi, I have a silly question... I have a Windows Form project (VB.Net) that was created in Visual Studio 2003. The project runs great. Now I have to add the ability to run the same application from a commandline. The obvious issue is going to be with all of the form specific settings...more >>