Visual Basic .NET Forum

I have a dataset that is filling a data adapter and what I'm needing to do is to loop through all of the lines in my dataset and determine if there are edits/changes when a user fires a buttonclick event which will then post the edits/changes back to my database. Can someone tell me 1. Is this possible? 2. The best way to do it if it is. ...

I'm looking for a little help; I've tried everything. Here is a little section of code of a bigger project. What do I need to plug into the ? in the FillRectangleRectangle call to get this to work? I got the FillRect... example from MSDN, but I can't figure out how to call it correctly. Thanks for any help. -Bob Private Sub...

I'm trying to get a small webpage to update an access database. There are no problems with the data the user enter but when I try to update the database with current date and time it fails. I'm using a FormView to enter data. If Not IsPostBack Then '==========>Update db with current date and time ...

Hi All, Is there any way so I can get event when moving cursor in excel sheet. What I meant by that if cursor is in cell A1 then I move to B1 at that time I want cell change event should fire. At the movement I am able to get event when you change the cell value and press enter then I can get the cell change event. Is there any way to...

Hi guys! I need some help. I`ve created a database in postgre and linked it to vb. All good till now. The problem: I want that when i press the "rezerva" button the field "disponibilitate" to update to "rezervat", that means it must update itself in the database. Unfortunatelly, I am new in VB.net and I don't know how to do it exactly. I've...

Hullo Good Guys, I have an intesting problem and I need your help. Please help me. I am using Vb.NET2008 to develop Window Application. When the user enter the File Name on the textbox, I need to check the file name to ensure that it has the File Extension. (Eg. Sales.XLS) I have not done the coding before and stuggling with it. Please...

this is my line of codes. but it only compares to the equal match on the textbox. is there any way where i can match even just a keyword and will select all items with the same keyword that i type on textbox. For i = 0 To ListView1.Items.Count - 1 If ListView1.Items(i).SubItems(1).Text.ToLower = TextBox1.Text.ToLower Then...

please help me i'm trying to update a data user using vb.net2008 and sql server management studio express for my backend. the error says "must declare the scalar variable "@username" here's the code . Private Sub btnupdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnupdate.Click Dim connstring =...

what is the code to get total number of hits occured on web page?

Using Build ---> Publish is nice, but it installs (on the client's machine) into an esoterically-named directory. As you can imagine, this is a nightmare to backup. Does anyone know how I can direct this thing to install into a directory that I choose? Thanks in advance! Dave

I have a form in an application that I'm building and in it I have a datagridview that when a user clicks a checkbox on a line in the datagridview and "submits" the data, then the form will insert all of the data on that line (along with the code "Holiday") into a database. Currently if I click in the checkbox on any line other than the first line...

I have a form in my application that presents users with a datagridview which pulls data from database-a. I then offer the users the ability to edit that data but what I'd like to do is when they click the save event, that it saves their changes to database-b. Can this be done? Thank you Doug

Hello. I have 2 desktop programms..I will call them P1 and P2. So, P1 launches P2 as a process. However, at some point I want to be able to show a window in P2. My problem was that this window, when called, was showing correctly placed, in the middle of the screen, but in the back of P1. So, in order to show it as the top most window,...

Here are the tools that i'm using: Visual Studio .Net 2003 Crystal Report 8.5 OS: Windows XP I have developed a visual basic application running in windows xp. My program works fine, all reports will appear. But when I installed my program in windows 7, I got this error "Load report failed." during viewing of reports. Any idea will...

i'm new in writing windows service. I have done a basic one, which basically just creates logs whenever the service has been started or stopped. Now, i was asked to create a service which will write something on the logs every 30 minutes. any suggestions? Thanks, and godbless

Hi Im making a services that will log every time it gets started and stopped. I have accomplished that easily, using the onstop and onstart events. Now, im trying to call an exe file that writes something on the log. im calling the exe file every 30 minutes, so i used a do while loop and a thread.sleep code. Now, I've put the loop inside...

Hi, I'm having a bit of trouble creating draggable panels that will stay on top of all the other panels and not 'hide' behind them. My code for dragging works fine, I just need to set the layer of a panel to the top of all the different controls :/ Can anyone help me here? Thanks in advance, Josh.

I have deceloped an audio converter interface. But I don't know how to convert the audio formats. I have downloaded 3 DLLs including: lame_enc.dll, libsndfile.dll and madlldlib.dll. I got them while searching for the solution. Kindly help me with the whole process. What should I do ??? I want to make the converter in vb.net...please...

I have this Windows Form project in VB.NET, very simple, inserts and collects data from a MS Access database and nothing else other than having a few pretty icons and displaying the totals of the data entered. I publish it on the network without any errors. On the HTML page it creates, we are presented with two options;If these components...

I am creating a program that will be sold as a subscription. I am trying to decide how to prevent users from passing the program to others without purchasing it. I was thinking that on the very first run, the program could pull the MAC address from the computer it is run on, and create a constant at run time. This constant is then hard wired...

I cretaed a vb application where I concatenate a string to build XML code and Im getting an error stating that I must include a matching PURCHASE-ORDER-SHIP-TO end tag which clearly exists see below: sMyXml = sMyXml + " <PURCHASE-ORDER-SHIP-TO>" sMyXml = sMyXml + " <DIRECT-QUESTIONS-TO>ATHOS PETROU</DIRECT-QUESTIONS-TO>" sMyXml =...

The code is as follows dim st as string st="select * from employees where empName='" & textName.Text &"'" ' The empName is Dani'e 'So the single quote with in the name Dani'e makes the vb.net code to halt.?????? 'How can I pass??? Thanks in advance.

Hello all i am using vb.net 2005 and using the comm ports succesfully. as it is now i add all of the comm ports to a list box so that i can select a device in which to communicate. however some of those devices can lock-up the system as they are now the correct device. If i look in the system properties/device manager of windows i can see...

with this code I am trying to see the data being return thru port 10001, looks like no data is returned.. Can anybody see any problems with it. I am very very new to this .net stuff, so any help would be greatly appreciated. Thanks Imports System Imports System.Net.Sockets Imports System.Text Public Module lantest1

I have a vb application(1) which is made to launch another software(2) with specified parameters, but i wanna keep my application opened as long as the 2nd one is opened too, and I also want to close the second one automatically if mine has been force closed by the user in windows taskmanager, on the desktop, or in any way. So I need something...