[vb.net] Forum Topics

Hello Everyone!! just a newbie here looking for some advice. ready to accept any suggestion that I get. I wish to make a GUI for a specific feature of a lenel panel 2220. I'd like to have a list of the activity on badge reader. I have the Lenel set …

i have a datagridview with some columns and i want to check if column number (e.g "6") value is null remove the row even if the other columns on the same row has value for example : col1 | col2 | col3 mn | nder| john sa | | sayed …

i made a form with datagridview which get its values from excel file and make some changes on its columns to prepare it to be saved in sql database so i need your help to compare one datagridview column with listbox items and get the result in another column for …

I am making a multiple choice quiz in vb with the questions and answers stored in an access database. When trying to display the question and answers on my labels, they don't change. Here is my code: Imports System.Data.OleDb Public Class Football_Questions Dim con As New OleDbConnection Private Sub Football_Questions_Load(sender …

Hi I m currently working on windows application that is loading electoral roll pdf file. What I m trying to do is to get the data as per Sr. No., Epic No., Name, Father's / Husbands Name, Age, Sex, House No. and pincode. Data is available in 3 columns and …

I have a new command in my connection 1 of my dataenvironment, but, when i drag the "Command1" to my form, i cant see the labels and textboxes , why? Please help me, its my homework

Just a quick question here for VB.NET developing with Visual Studio. I have an existing project (Project A) and I want to use portions of it as a foundation for another related project (Project B). How can I safely copy Project A to another location, rip out unnecessary forms, code, …

A sub procedure in Visual Basic that sets the vertical and horizontal sizes of a form named DemoForm to half the vertical size of the screen and to three-quarters the horizontal size of the screen respectively. ******************************* A program that can be used to generate and display the following multiplication …

I do see AutoClose as a property for primary ContextMenu items, but I observe the secondary menu items do not stay open. Does anyone have a solution for this? I did opt with Secondary menu item click handler to set AutoClose to False, and create a single handler to process …

I am working on a program and I almost have it working the way I want except for two problems. The first is major; I can not for the life of me get my answer for the population to equal anything but zero. I have a feeling this is due …

I knew how to use combo box to read the database in Microsoft access, let say I have 7 option and I can make it into conbo box. But now I want the 7 option in the form of button (means got 7 button). Can anyone help ?? While (acsdr.Read()) …

For my class I am asked to complete a program: create an application that will predict the approximate sie of a population of organisms. the user should select or enter the starting number of organisms in a combo box, enter the average daily population increase (as a percentage) in a …

Hi Dw. Is it possible to search through "*.COM", "*.exe" files and check if they are encrypted and so check which encryption was used in VB.NET?

Am having some difficulty, I had some code that had a static helper method in C#, and now I am looking to port it to vb, but unfortunately vb doesn't seem to have a yield return operator. How do most vb developers do this, and why is there no yield …

Public Class Form1 Dim intsum, intaverage, counter As Integer Private Sub btnAverage_Click(sender As Object, e As EventArgs) Handles btnAverage.Click For counter = 0 To lbNumber.Items.Count - 1 intsum += counter Next intaverage = (intsum / lbNumber.Items.Count - 1) lblAverage.Text = intaverage End Sub Private Sub btnSum_Click(sender As Object, e As …

How to block or prevent print dialog using a webcontrol from a win form in vb.net ---------------------------------------------------------------------------------------------------------------------------- In vb.net How to block or prevent print dialog show while printing a pdf using a web browser control (webcontrol) from a Windows Form

I have added code for plus button, but how i write code for other buttons? My code is double total1 = 0; double total2 = 0; private void plus_Click(object sender, EventArgs e) { total1 = total1 + double.Parse(textBox1.Text); textBox1.Clear(); } private void equal_Click(object sender, EventArgs e) { total2 = total1 …

I want to add 12 players in 1 transaction only. My codes here can only save 1 player. Here's my codes: Private Sub savebtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles savebtn.Click Dim conn As MySqlConnection Dim myCommand As New MySqlCommand Dim commandB As MySqlCommandBuilder Dim data As MySqlDataAdapter …

Hi Dw. I'm developing a software but now due to some complexity of the program I had to do some engine with C++ and I want to be able to call and receive the events from a service. Here's the C++ code that receives calls when an application tries to …

For the VB Studio 2010 software I developed, I'd like to include source code, a class maybe, written in VB (not c++) that allows me to get (and change) ID3 V1 and V2 tagging data from MP3 files. I've been looking for months and have found .exe's and someone else's …

hey, folks, thanks for clicking :) i want to assign a pressed key to a button, i clicked before, similar to what we know from computergames, when we change the key bindings. For example: click button1 -> the application is waiting for any key to be pressed -> we push …

Hello everyone, what i am trying todo is get the following data from a html file.... Friday 31 - 1 - 2014 Created: 31/01/2014 2:32 PM Updated: 31/01/2014 7:03 PM Location: 37°35'13 S 145°7'41 E Shift 143 Car 7008 Bus 280 564 / 9 Car 7008 Car 7011 Bus 361 …

I am trying to work the next and previous button to read or navigate throughrecords, please help me to correct this, I'm stuck here: Private Sub Button7_Click(sender As Object, e As EventArgs) Handles Button7.Click Dim k As Integer Dim i As Integer k = 1 i = k + 1 …

Why am I getting a System.StackOverflowException when assingning a value to avariable. I have used the same process on other forms in this project and they work fine, don't know why this is happening. This is the error "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll" the exception hapens …

Hello, I am trying to develop VB.NET application which it will compress files one by one but the problem is the size of each file is too large in size about (1.6 GB) and when I am trying to compress it using FileStream and Buffer it shows to me Memory …

i have listview named : listview1 and a button to export listview data presented. all i want is to export that data to an excel probably to edit or print them. Is there anyone can help me about it? i had gone into but still cant find exactly what I …

hello, i want to be able to separate the values in a textbox and display the separated values in different labels using a button this is what i want to happen: 1. input "Ac2O3" on textbox 2. Be able to separate "Ac", "2", "O", and "3". 3. show these separated …