[vb.net] Forum Topics

solving this question

I'm trying to make the picturebox collide with the others. I tried to do several things but they don't work. I spoke to my teacher and he said I should do something like this: PictureBox1.Left + PictureBox1.Width >= PictureBox2.Left And PictureBox1.Top + PictureBox1.Height >= PictureBox2.Top And PictureBox1.Top <= PictureBox2.Top + …

Discussion on Cybercafe Managment System - Project. I am in student in IT Eng. and i am woking on project for developing a Cybercafe Managment System. So, i am taking a reference of "handycafe" software. But i need more details on this concept. About which features i can add,what type …

Hi, I try to show up a notification when an if statement is true, but it doesn't show up also I checked the win 11 notification is something was on, but all things is off. In case I can only create a custom one. S.O = Win 11 Version of …

I am using visual studio / basic 2019. using the windows media to play sounds (WMPLib.WindowsMediaPlayer). It works great, I can play multiple sounds etc. However what I realy want to do is play some sounds on sound card A. And other sounds in sound card B. I am thinking …

Hi, I like to ask for a clarification about it. I have combobox.items(i) that go trough a for next loop for each index I need to check if its content (number) will be >=1 or <=10. Now I tried this one, but I know where the error might be, the …

Hi, like title, I have a timer, that when reach 0 will fire event on another form, then timer restart but when reach 0 nothing happen. how can I achieve this? Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick Dim value = CInt(Label10.Text) If value >= 1 And …

Hi, how can I make sure that all the datetime stored previously by user input will be updated in a cycle for? I explain better the structure Combobox2 <----- is where list of datatime are previously stored Combobox3 <------- is where remaining time is given by a substraction of two …

Hi, how can I clean all saved settings in my.settings ? Do I need only to put my.settings.[name].clear() or a My.settings.reset() can do a good job for all the user setting added into the program? Also how can I add an exception if there is nothing in that setting or …

Like title, more particulary, I have two textbox when user put links when finished the result will be on the second one with some default string in the 0 index of the counter and after the exiting of the loop. My question is how I can make that even the …

Hi, I have a question, how can I achieve this, like I have declared 3 variable as string, each checkbox has a variable that will be created if clicked also when checked it will put the corresponding textbox.text into it. Now the problem is I need to make sure that …

Hi, I have a issues, I have to load again the listbox, after filtering trought a textbox if a string is the same. I tried this code, but doesn't work at the is null or empthy, how can I reload it by a cicle for? Private Sub TextBox3_TextChanged(sender As Object, …

Hello! *I need help * I need to calculate average of the elements of the matrix in **vb.net ** 5 2 1 2 5 5 2 -2 1 5 -1 1 1 -1 -5 -2

hi everybody , my Question is , how i can get the last row in my datagridview thanx in advance :)

Using: Visual Basic .NET 2012 Problem: I am using the code below to get the version information from a system dll. It returns a version number and I check the file manually by going to C:\windows\system32, right clicking, going to properties, clicking on Details and the version number that VB.NET …

Hi all. I have this code and it is correct. Dim logDayName As String = WeekdayName(Weekday(LogDateTextBox.Text)) Dim logMonthName As String = MonthName(Month(LogDateTextBox.Text)) The following code is an error on the Day function. Dim logMonthDay As Integer = Day(LogDateTextBox.Text) Please offer assistance. Thank you, Shane.

I want to make several of my textbox.text properties equal to variables. I tried: Dim outcome As New txtResult.Text outcome = "xxxxx" this produced an error. :( first, is this possible and if it is, what am I doing wrong???

This code causes an exception: dim box as new mult() box.show <-------- cannot access a disposed object

I had button code to print data in data grid view on vb.net program. But when I click on print all times it show print preview lost first of record. this is my code Dim mRow As Integer = 0 Dim newpage As Boolean = True With dgvreciept Dim fmt …

I'm using the ink picture control and I'm having trouble getting my code to work. The inkpicture control is used for tablet pcs when the user draws inside the control. I just want to be able to save it to a jpeg. I've been stuck on this for days :) …

Hi, i want to total the values in column9 in Patientdatagridview to a textbox1. here is my code but it displayes each value, not the total. e.g. if values are 200, 200, 200 then it should display 600 but here it says 0200200200 Private Sub Button1_Click(ByVal sender As System.Object, ByVal …

Hi, Could somebody provide me with an example of how to display data (some text) in a combobox? Thanks Collin

In Visual Studio 2015, VB, in Windows 10, I have a small program where I use the arp -a command to pick up the mac and I/P addresses of connected devices on my lan. From everything I've read (and tried), the answer somehow comes back to DNS.getHostEntry which throws a …

My teacher said that there was a bug in the code where if you run the program and didn't select an item then click a button which you selected an item in the listview and a message box appears, there will be an error where it will say ''InvalidArgument=Value of …

I am very new to VB.NET. That said, I have developed a windows form that utilizes an SQL Server back end. I am developing using Visual Studio 2008 and the 3.5 Framework. The SQL server is 2005. I do not have any warnings or errors, and the project compiles without …

Hello clever people, Completely new to VB.NET (only installed Visual Studio 2019 in the past couple of days). To start all I want to do is open Excel (office 365) from a button on a userform. The location of the file is on a network, lets say: - \\file-svr01\Rozel\Design\Parts\PNG.xlsx OR …

Hello all I have a form with two datagridviews. Grid A is polulated with orders from DB, grib B has an empty table with the same column name as grid A. Im currently draging orders from Grid A onto grid B. My isue is that since grid B has only …

Hello I have created awhile ago in VS2017 an application [application A] with CR sp21 which works fine. Now Ihave another application [application B] created in vs2019 with CR sp29. When I install app B on the same pc where App A is installed the CR wont work so I …

Hello, I'm trying to write data to an INI file, I've got some code to read it: [http://pastebin.com/Jpwf8XJM](http://pastebin.com/Jpwf8XJM). I've tried to modify this code to get it to be able to write to INI files, but I haven't had much success. I know there are DLL's designed for this, but …

I created a crystal report in vb.net 2003 that generates invoices. I need to be able to print this report to a Canon copy machine(with four paper drawers), but I can't select the paper drawer to print from at runtime, it has to print to the fourth drawer. I am …