I was under the impression that there was not much difference between Sub New() and Form_Load. However, I found one weird bug...Add a combobox and a label to a form, and the following code:
Public Class Form1
Private mstrOutput As String = ""[code].....
The label text shows that the value of ComboBox1.Text changes between Sub New() and Form_Load.Is this meant to happen?
I have been playing around with VB for a while now, but still need to consolidate some thoughts. I was wondering if anyone could answer this..... Whats the difference between say Form1_Load and Public Sub New() on form startup? The reason i ask is i normally add calling subs to the form load process, but can you add any startup calls to the Public Sub New(), and if so, what is the advantage?
View 1 RepliesI'm practicing for defining classes and I'm doing it in windows app. After having a class and its properties, i don't how to access it in form_Load. I want to display data that I've in New , the constructor. I want to display it using messagebox. Please tell me how would I do it?
[Code]...
I made alternate way to read and write..but im stucked on loading .ini, This is how is reading done:
public void Form3_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
IniFile ini = new IniFile(".\\language.ini");
ini.IniWriteValue("Language", "Lang", name.Text);
[CODE]...
How to write this code exacly.
VB2008: use a BindingSource on numerous textbox fields. The form loads ok and all of the binding is working fine. My problem is that I need to set certain form defaults based on the incoming data prior to showing the form. I cannot find a form event that fires after the data is bound, yet before it is displayed. I tried Form_Activated and several more. The bound fields are still showing zero-length strings. This wasn't a problem in VB6. Can anyone point me in the right direction?
View 1 RepliesI am trying to write a graphing program that will draw on/in a picturebox during the form_load event. It works if I connect the code to a button event and click the button but the exact same code in the form_load event seems to do nothing. I've tried calling cmdDraw.PerformClick() and cmdDraw_Click() and although the Draw button works when I physically click the button with the mouse, nothing seems to happen when these functions are called during the form_load.
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I have a form that I call from another form. Whenever I call it using form.showdialog() or form.show() the form appears, but it never executes the code that is in the form_load sub.
What's the deal? I call other forms in the same manner and they all load and execute the load code without issue.
Create a Visual Basic project with a Form that displays a seating chart for a small theater. Assume that the theatre has 25 rows and each row has 10 seats. The following image shows the completed main Form for the solution.
Write statements in the Form Load event to instantiate an object from the splash screen form and then display it as a modal window. Write the statements so that when the main Form loads (after displaying the splash screen) it will dynamically create the 2-dimensional array of CheckBoxes on the Form. The CheckBoxes should be created inside a scrollable Panel control instance. Above the scrollable Panel control instance display the column numbers (1 to 10).
I have a piece of code like...
If FRM_LOADED(lngID)
Then
FRM_X(lngID).WindowState = FormWindowState.Normal
[Code]......
and in VS 2008 the form (FRM_X ) loaded and invoked the Load method. After upgrading to VS 2010 the same code executes and displays the form but the Load method isn;t executed.
how can i select full and first row of datagridview in vb.net on form_Load
View 2 Repliesdoes anyone know why the form load event being completely ignored/bypassed during loading the app? The form loads but none of the code in form_Load sub being executed (yes I tried putting a break inside the sub and it didn't trap)
View 13 RepliesVisual Studio 2010 (vb.net window form application)
Access 2010 database
Form1 holds a datagridview bound to bindingSource
I pass this binding source (current selected row) to edit form edit form contains 2 tabs On form_Load of edit form:
Private Sub frmEditCust_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'AutoBillDataSet.Customer' table. You can move, or remove it, as needed.
[Code].....
I have a problem concerning the Form_Loading event: When I want to load a new Form (ImageDisplay) the ImageDisplay_Load Event is not executed first.
Instead it runs through the global variables definitions and then executes a Private Sub called numericupdown1_changed.
The numericupdown1 field is part of the form I want to load and has not been touched.
That is my calling sequence:
Private Sub Dispalydata_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Dispalydata.Click
Dim myDisplay As New ImageDisplay
[Code]...
The strange thing is that for other forms in my code it works well and starts with the form_load function.
i have a problem: I have a Form_Load-Method which is not doing all the commands in it. It just interrupts and jumps to the "Form_Paint"-Event, eventhough i did not yet paint anything or invalidated any object. The Form_Load-Method is this:
[Code]...
the dashed line indicates the point of termination. the for-loop is simply not done. i tried it with stop points and the last point it stops is the ReDim-part. this can only mean, that the ReDim-Command forces the program to leave the method. but the for loop is never done afterwards. Can you help me? Because i really dont get it.
this code was just working! but for some reason it stopped to work now. when i run this project the following code is supposed to execute but it does
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim xmldoc As New System.Xml.XmlDocument()
[code]....
The application I'm writing requires the user to select a certain directory on their hard-drive (a game directory), which is saved to the Settings. If the directory is not selected, my application can't work. So, when the program starts for the first time, the directory setting will not be present, and I want my application to ask the user to select the correct directory before the application starts (the main form is shown). I used the following code in the Form_Load event of my main form:
vb.net
If My.Settings.WolfPath = String.Empty Then
MessageBox.Show("Please select your root 'Wolfenstein - Enemy Territoryetmain' mapping installation.", "Select W:ET Path", MessageBoxButtons.OK, MessageBoxIcon.Information)
[code]....
It looks pretty complicated (probably too complicated) but I wanted to make sure that the user cannot continue until a valid directory has been selected. So when the user cancels the folder selection, my application should end. If the user selects an invalid directory (it should end in "etmain") it should display a messagebox and show the folder browser dialog again. It should keep doing this until the correct path has been chosen.The problem occurs when an invalid directory is first chosen. The messagebox does show, but it shows behind all other applications! It took me a minute to figure that out, because I could not find my application anywhere, but Visual Studio still said it was running... After finally finding the messagebox behind everything else, it seems that now everything comes up behind everything else! When I click OK on the messagebox, the new folder browser dialog also shows up in the background, etc, etc. If I then choose a valid directory, the application loads the main form in the background...
I thought at first the problem would be the fact that I am running this code in the Form_Load event. A better place perhaps would be a Sub Main() from which the main form would be loaded explicitly (Application.Run(mainForm)). However, I can only select Forms as the Startup Form. If I disable the "Enable application framework" checkbox I can select the Sub Main() as Startup Object, but all the visual styles are lost...?
I want to draw graphics onto a form without using paint or load events.
This Example works untill the graphics get covered and uncovered. Then the graphics vanish.
Public
Sub DrwBrdrBx()
Dim DrwBrdr
[Code].....
I am having a problem in Form_Load. When the following code executes the form pops up with out executing any further code: Me.TblAssetsTableAdapter.Fill(Me.ITP400_IP3_ADataSet.tblAssets).
I am trying to use Form_Load to populate values in a ListBox control from an Access database table.It appears the problem was in the Compile settings. It was the 'old' problem of using AnyCPU on an x64 machine. I changed the Compile setting to x86 and the problem disappeared.
In my program's Form_Load I randomly generate a time value. Once I generate the time value, I put it in a DateTime variable. I need it to work like a clock. I know I can do this with a timer with an interval of 60000, or using TimeGetTime and updating a variable.Is it possible to do this with a thread?
View 3 RepliesIs it possible to check locale format on form_load and change it to en-us via registry if any other is preset?
View 5 RepliesI am using visual studio 2005. I want my form should be editable, when i am pressing some function key. Like, when form load, no field should be editable. When i will press "Ctrl + N" or "Ctrl + F2" Key then only form should be editable. Is this possible?
View 7 RepliesI want to display form1 for 5 seconds on my form_load event, after 5 seconds i want it to close , im not sure how to do it with a timer,
View 2 RepliesI have two data tables within my data set that are loaded onto my form on form_load using statements written in code (not the designer. When I change a value for the first table via a text box the change is made to the data set. But when I try the same for the second table, the change doesn't remain in the data set when I switch to a different company and come back. I query the second table using the primary key of the first table but no code is needed when I change the values for the first table so I don't understand why the same doesn't work for the second when I change a value via a data-bound text box....
Here is my code that initially binds the data:
'This is used to read our data from the data base
Public Sub Read_Data_SQL()
Call Clear_Bindings()
[CODE]...
Here is the code I call when the selected index of my company combo box changes to have the second table reflect that of the first:
'This sub populates any information contained in the Contact2 table
Private Sub Update_Contact_2()
Dim Company As String = cmbCompany.Text.Replace("'", "''")
[CODE]...
I migrate a project from vb6 to vb.net.In vb.net project form's events are fired randamly. I mean form_Activated event are fired first after that form_Load event are fire. and this events are fired more than one time.what condition form_Activated event fired before form_Load event.
View 2 RepliesI am having trouble adding label.text, datetimepicker.text and ComboBox1.Text into listview1 box.I have set up multiple columns, one for the label, one for the date and one for the combo box text. All i have done is:
ListView1.Items.Add(DateTimePicker1.Text)ListView1.Items.Add(TextBox1.Text)ListView1.Items.Add(ComboBox1.Text)
How do i add these in the different columns so that they are all in one single row.
I'm trying to play around with combo boxes and trying to figure out how to navigate to a certain url in webbrowser1 depending on the text selected in combobox1.
VB
Imports System.Windows.Forms
Imports System.Net
Imports System.IO
[Code].....
Why would this event only work once, the first time I select an item? If I select another item off the list nothing happens.
View 3 Replieshow to add items in combobox1 that will be saved....this pattern isn't do the way i want...Form2.ComboBox1.Items.Add("test") because after i close the form2 it would be back to nothing...is there a code that will do this? because it works only in design view...in items then collection..
View 4 RepliesI m using visual studio 2010, I am trying to show the week days in Combo box but its not showing when i run it.
Class MainWindow
Private Sub ComboBox1_SelectionChanged(sender As System.Object, e As System.Windows.Controls.SelectionChangedEventArgs) Handles
[Code]....
I would like to have a combobox with 5 names in Combobox1. Calgary, Edmonton, Denver, Kelowna & Toronto. When I select Calgary I would like the numbers 01 to show up in the Textbox1. When I select Edmonton I would like the numbers 02 to show up in the Textbox1. When I select Denver I would like the numbers 03 to show up in the Textbox1. Etc........
View 3 Replies