hello, i'm having a problem with the following piece of code. i use it to read a string in an array, then search that string for ";;" symbols, then i read what comes after that to a variable, witch goes to a text box. but every time i run the subroutine, i get an "Object reference not set t...more >>

Hello i have this problem: In a DataGridView the user work with data from a DataSet. on Start the row index from datagridview is the same as the row index from the dataset. Also: DataGridView.Rows(5) <=====> DataSet.Rows(5) . if the user delete a row (without update), or the user sor...more >>

Hi, IF i want to write a line at the same time in append mode how m i suppose to do. here is my code.... and this function may be called more then once at the same time.... and it works fine... but the only thing is that.. sometime i get the error : The process cannot access the file...more >>

All I have a hashtable which I am trying to output to an XML file. Can anyone advise on the best way to acheive this using VB.Net. Thanks in Advance for any assistance....more >>

I have a webform and found some code where I understand some of it, but not all The code is as follows public static void SetFocus(Control control) { StringBuilder sb = new StringBuilder(); sb.Append("\r\n<script language='JavaScript'>\r\n"); sb.Append("<!--\r\n"); sb.Appe...more >>

Hi, I am a newbie. I am doing a VB.net app to kill notepad.exe But it is not working. Can anyone help ? Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim myProcesses() As Process 'myProcesses = System.Diagnostics.Process("n...more >>

I have an app that has a linklabel on a form....opens IE and goes to a specified webpage via ************************************** LinkLabelOLB.LinkVisited = True System.Diagnostics.Process.Start(http://www.the website.com/) ************************************** works great..... ...more >>

Hi I need to develop a simple application to simply convert my screen resolution to 1024 by 768 Anybody have any ideas??? Scott ...more >>

how do i open up 8 thread to run 8 function at the same time?...more >>

I have a Windows app (.net v1.1) and I am dragging from a list box. The first drag works fine, but all subsequent drags continue to pull the first item that was dragged. It appears that MouseDown does not cause the SelectedItem to change (even though the highlighted item changes). So, if ...more >>

Hi, I know the topic of cross-thread operations from the UI has been addressed several times, but if anyone could provide some insight for my particular scenario, I would be thankful... Using Visual Basic (VS 2005 Beta 1) In a Public class X, I have a TCP connection setup to parse and d...more >>

Hi Everyone, Using the datagrid, is there a reliable way to catch when the user selects a different row (Like a RowChanged event). I've also looked at the events of the table control and that does not work the way I want it to. Thanks for any advice. Michael Lee ...more >>

Hi Everyone, Using the datagrid, is there a reliable way to catch when the user selects a different row (Like a RowChanged event). I have seen CurrentCellChanged, but it looks as if I would need to track the last row against the current row found during this event. If this correct. I've also ...more >>

In a vbscript making something sleep is as easy as this.... Set WshShell = WScript.CreateObject("WScript.Shell") WScript.Sleep 5000 In .net I've got the object created. I know it works because I use it else where. Set WshShell = CreateObject("WScript.Shell") How do I implement the sleep m...more >>

Hi, I realised that i cannot rename a control using a certain name, because there already exists another control with that name. I have been trying to find and delete that other control with no success !!! I['ve been "Bring to front" all panels and controls in my form and nothing. Is there...more >>

The code below runs in the form_paint event but changes nothing, anyone got a better idea or why this code is not effective? Imports System.Drawing.Drawing2D Dim ctl As Control Dim str As String For Each ctl In Me.Controls str = ctl.GetType.ToString ...more >>

(Sorry for cross post but kinda in a hurry) I have com+ server applicaiton on machine A. The exported application proxy is installed on machine B. Both machines have windows 2003 os. Both machines are configured to be application servers. I created on machine B: 1) A vbs file 2) VB.NET asse...more >>

Lets say I need to do something like this when running sql-sentences... Private Sub InsertIntoTable(ByVal ProductID As Integer, ByVal Amount As Single) Dim sql as String = String.Format("INSERT INTO MyTable (ProductID, Amount) VALUES ({0}, {1})", ProductID, Amount) '...code continues....more >>

Please excuse my ignorance, but I am trying to teach myself .Net without a lot of help. At this point I have created a page with a few text boxes and combo boxes that I am using as an example. The page displays nicely with the Requestor, DivMgr, ChgType, Description fields. What I would li...more >>

Hi! I have 100 xrLabels and I need to put in text property a value but I don't want to write 100 lines of code, like something like that: for i=1 to 100 xrLabel(i).Text= i next How can do that? -- Cumprimentos, David de Passos -------------------------------------------...more >>

Hello, My application needs load some dll's at runtime, Is there any way to do it?, can you show me a working example code? Many thanks ...more >>

see i knew if i put the word PORN on every guy will look at it why? ...more >>

Hi all i need to know if sql dmo can connect to SQL server 2005 if can! how can i do this ?? i have this code Dim xServer a SQLDMO.Server ......bla..bla... xServer.LoginSecure = True xServer.Connect("SQLServer2005") but it can´t connect. is there anyother way ?? thks JSB ...more >>

I have a folder on a local machine that has the access security settings set in Windows so that only the administrator can perform write or create operations on the folder. Everyone else is given read only access to the folder. I am trying to write a vb.net program that can create and modify...more >>

i had to fart but it came out with something else an my boss just called me to his office whatdo i do!? ...more >>

We are working on a distributed VB.Net application which will access a SQL database located on a known server. Each client will run on the user's local machine. To implement this, we are trying to use remoting for our access to the SQL server, with the remoting being via IIS. Since all of o...more >>

Is there anyway to access a Shared method from within an instance of a class. public class MyClass Shared Readonly Property myProp() as string Get return "MyProp Example" End Get End Property end class I want to use this as: dim mc as new MyClass debug.print mc...more >>

I tried to rename a local folder (C:\Program Files\Microsoft Mappoint\Data) in my VB.NEt app but running into permission problem. I even granted full rights to ASPNET user to the folder in question but it's still not working. If I do it manually (my login has administrator rights to the local/...more >>

Hi All, I'm trying to figure out how I can speed up a fragment of code (which has been converted from vb6 to .NET) that reads data from a database. My knowledge on database programming is limited. The code uses DAO (which, I understand, is no longer supported) - would there be any performa...more >>

Hi All, I'm trying to figure out how I can speed up a fragment of code (which has been converted from vb6 to .NET) that reads data from a database. My knowledge on database programming is limited. The code uses DAO (which, I understand, is no longer supported) - would there be any performanc...more >>

Hello I'm writing a web application where i upload a file. then i open the file use textstream. At the end of my application i close it by using TextStream.close. But when i try to delete the file on my hard disk i keep getting the error "file is being used by other program or person". The on...more >>

I have been using a program which depends on getting the system time from the computer. It works perfectly on XP but is slower on 98. Specifically, it takes 50 or 60 mSec for the system time to be updated in 98 but only 16 or 16 mSec in XP. Anyone have any thoughts?...more >>

All, I am using Windows Forms and have multiple XML datasets feeding various controls. Here is the situation. I have a master dataset that saves a document to the drive. Out of 50 fields in the XML document, there are 5 that have defaults loaded from a different XML dataset when the new for...more >>

Hello all, I am executing a stored procedure (on an SQL Server) using ODBC but i can't get the output parameter's value on the client. The stored proc has 3 parameters ,2 of them are input and 1 is output. (for shake of simplicity let's suppose that the proc seems something like ------------...more >>

Hi I have a decimal numbers showing up on my datagrid that is displaying lots of trailing zeros in the listbox. i.e. 1.000100 or 1.000000 I want to get rid of all the trailing zeros (I don't want to do any rounding). I've tried to use: number.tostring.format("##0.00") or number.tos...more >>

Hi, I'd like to know how to easily map a network drive using vb.net. thanks...more >>

hi i have a commandline that send data to 8 USB printer, but when one of the printer is not working, the other 7 will also hanged. How can i use threading to separate the 8 printing process? For x = 0 To 7 If USBHandle(x) > 0 And USBAddressOn(x) = True Then RetVa...more >>

Hi I need to be write a vb.net app which is callable from ms access to pass info from access to the vb.net app. How do I accomplish this? Thanks Regards ...more >>

Dear all, I found out that I don' understand byVal/byRef in VB. There is a simple example: Why in the first test the result is 10,10 where in the second 0,20. Thanks for your help. Boni Module Module1 Class A Public B As Integer End Class Sub test(ByVal val_ As A, ByRef ref_ As A) ...more >>

hi, how do I pass fixed string byref to a dll . I had try <VBFixedString(10)> but when I run I keep getting system.accessviolation Any help would be great ...more >>

Hi I've created a GUID column of a table in ms sql server and bind the table to a datagrid. How can I automatically create new GUID when i add new row in the datagrid. Pls help. Thanks. Regards Melson ...more >>

hi, Two questions, i dont know if the cause if these two problems is the same. 1. As soon as i Add->Reference -> Microsoft Excel 11.0 Object library. It gives an error 'The referenced component 'Excel' could not found. I downloaded PIA from MS website this morning.After a bit of digging ...more >>

Hello I have vb.net 2003 but I cannot find CrystalDecisions. How can I get/install it? TBS ...more >>

Hi all, I need to query data from at least 2 MDB files that have a common CardNo field. The tables that hold those info are in different MDBs, how can I run select SQL statement under VB.NET environment? For example: In A.MDB, table CardInfo has fields CardNo and Name In B.MDB, table Reco...more >>

I remeber seeing a sample on th e.net (and in fact i tried this too - but lost the source code), to achieve the following. Dropping a control onto a form, which is exactly like the properties window, and can be used to set the properties of a control, esp command buttom. Anyone out there k...more >>

I have created a long string and want to save it to a file. I create the file fine, but there are two additional characters at the end when I view it in a hex editor "OD" and "OA". Here is the code I have tried: FileOpen(1, SaveFileDialog1.FileName, OpenMode.Output, OpenAcce...more >>

I am trying to get control on where the user moves around in a webform especially after fields with autopostback. I have found a C# page with some of this stuff, but when I have converted it to VB, I get an error of stringbuilder. I have tried to use Imports System.Oject, but it still doesn't ...more >>

I want to convert standard SQL update syntax into calling stored procedure. Normal Coding ------------- Dim constr As String = "server='SQLSVR'; user id='USER'; password='password'; Database='ERP'" Dim sqlcon As System.Data.SqlClient.sqlconnection = New System.Data.SqlClient.sqlconnectio...more >>

Application: When a user selects a name in the listbox complete information(phone-no,E-mail,etc..) regarding the person should be displayed. Problem: I have populated the list-box with names using datareader.The database comprise of id with respect to each name.Now since the id's are unique t...more >>

I have a VB.NET application using SQL server with 300 users connecting via remote desktop to the application in Win2003. From what I read in the licensing agreement, we max out at 50 users in the Crystal Reports that comes with .NET. Is there a workaround by going to CR 8.5 or is there ano...more >>