I am using VB.NET 2003. I am trying to move an application from VB5 to VB.NET and having some difficulty. Thre is a Main Form, which only consists of a menu bar with one of its commands being "Help" Under "Help" are several choices, including "About". There is also an About form. My question is: How do I get the About form to load when the Help/About command is clicked?
[Code]....
I am learning VB.NET and as a first task I am creating a login form. I've been trying to link it to another form once a correct username and password are entered. However, despite that I still cant be able to hide it or unload it once the next form is loaded.
Here is the Code
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
If UsernameTextBox.Text = "chris" And PasswordTextBox.Text = "chrispass" Then
Me.Hide()
Form2.Show()
End If
Me.Close()
End Sub
The Form2 appears as coded above but the 'Me.Hide()' manages to hide the login form but then it appears again.
I feel like a complete noob for asking this because I know how to do this in VB6... But in VB.NET 2008, how would you load a new form and unload the current one? I know that in VB6 the code would be:
[code]...
The problem with that code is that it just ends my program completely without showing frmMain.
I'm rewriting a vb6 program in vb.net, and I was wondering what the best alternative is to vb6's "load"/"unload" commands for loading and unloading controls on a form.
e.g. (VB6)
Unload frmContainer.DetailGrid1
Load frmContainer.DetailGrid1
Currently I am adding/removing controls using
[Code].....
how can I get this .bat command to run after my button is clicked I can make it like, "Run a certain .bat when button is clicked" , but I don't want that because people can go inside my .bat and hack my IP. So I was wondering is there a way I can put that .bat command into my VB 2010 Express
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How can i check if a command button is clicked in vb.net 2003?
View 2 Replieswhat i am trying to do rather than having all my project files all around my documets is put them into one program by having a log in system that i have made sucssefully and at the moment i have it set out with 10 buttons and for button one i want to open my version of notepad from the debug file in the bin folder there is a .exe program that is the one i want to run i dont know if it is possible but when i came to coding button 1 i coded
dim openfile
("C:Documents and SettingsPeteMy
DocumentsVisual Studio 2010Projects
otepad
otepadinDebug
otepad.exe")
but i got a error like this and i tried this as well
Dim
open
As
New
[code]....
but at the first backslash i got a syntax error
I'm trying to make a program to send a command through a textbox when a button is clicked, THEN grab the output and put it into another texbox. If you could help i would be great full. This is what I have so far....
Public Class Form3
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Shell("C:DFUs-irecovery.exe")
[code]....
31 command buttons, labeled each number of the month, when clicked button changes to color red.
View 1 RepliesIs there a way to load Internet Explorer with a specified URL when a button is clicked?
View 3 RepliesI built an app in VB 2008 Express.I have published it by using the Publish tab of the project properties dialog. In other parts of the publish dialog, I have successfully associated a file extension (.xyz) with my app. To finally publish it, I click the Publish Now button, not the Publish Wizard.The app publishes fine, and after installing it by clicking on the resulting Setup.exe file, it runs fine. The app creates a .xyz file (essentially a text file). I then close the app. In Windows Explorer, I can see the .xyz file with my custom icon. When I double click on the .xyz file, my app starts up.So far so good.
Now I need to implement reading the contents of the .xyz file in my main form's load event.I thought it was going to be easy by following a snippet to read the command line, and with the knowledge that the filename clicked on is the first argument (item 0 of the argument collection).So I started testing like this:
Dim strMessage As String
strMessage = "Count: " & My.Application.CommandLineArgs.Count & vbCrLf
For Each argument As String In My.Application.CommandLineArgs[code]....
So, is the method I'm using to deploy considered Click Once? Note that I am not online-enabling anything, so I am hoping I don't need to get into the ActivationUri learning curve, which seems to be about URL's.How can I simply get the name of the associated file double clicked on into my VB.net app?
I have a form that contain 30 image (load by array) and when one of the image clicked, the background of my frmMain should change to the image clicked. The program has no problem by launching the code below :
Private Sub PictureBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles picWallpaper1.Click
frmMain.BackgroundImage = picWallpaper1.Image
End Sub
Private Sub PictureBox2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles picWallpaper2.Click
[Code] .....
But this way is not effective if I want to increase more image up to 50,60 in future the program will loaded with these code.
That's all I want to do but I get errors when I do this:
Form2.show ()
Me.close ()
Using VB2008
You have a form with 5 Textboxes and 1 button.
Write the code missing in Form1.Load so when the button is clicked, Textbox5 takes the value Done
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, _
[CODE]...
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
Dim con As OleDbConnection
Dim cmd As OleDbCommand
[CODE]...............
The insertion part of the form works great. But my problem is in the form load part......If i leave a field blank(Null),then perform Save operation,close the form after successful insertion and then reopen the form,then it retains the previous values during the form load......This is only in case where i leave a field blank in the previous data entry in the database.......But if i enter values in all fields then form load is working great.
I am trying to send a command to the external command line (cmd.exe) from the Windows form application that I'm writing in VB.NET (using VS2008).
I can only access the external program thru the command line (its not my program) and I must do so from a form app.
I am trying to use the following code. I am able to call a cmd.exe window, but I can't pass the command line my command.
Using mp As New Process
With mp.StartInfo
.FileName = "cmd.exe"
[Code].....
get a button on form A to open form B and then close (not hide) form A when clicked?Background: I am coding a VSTO application for Excel in VB2008.
Private Sub FormAButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles FormAButton.Click
Dim FormB As New FormB
[code]....
I am currently writing a program that is saving user setting for the program into the registry. The problem is with the 'Administrator Control Panel' that I am writing for that program. To load/edit those settings for users that are not logged in their NTUser.dat must be loaded into the registry. I have based that part off of [url]... using the API functions RegLoadKey and RegUnloadKey. When all that is done is loading and unloading the key it works fine. However, any time that I read from the loaded registry user hive it will not unload that users registry hive. I have tryed using the RegistryKey class[url]...
My assumption is that the RegistryKey is not being closed or released properly, or completely enough for the user hive to unload. I have tried the .Close member in the RegistryKey class as well as tried 'CType(regKey, IDisposable).Dispose()' (regKey is defind as registrykey) to close the registykey. After I close the program (running from Visual Studio) I can manually unload the hive via regedit.
Is there another/better/more complete way to close the registrykey to allow for the RegUnloadKey function to work?
Im learning VB.NET and as a first task im creating a login form. ive been trying to link it to another form once a correct username and password are entered. however, despite that i still cant be able to hide it or unload it once the next form is loaded
Here is the Code
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
If UsernameTextBox.Text = "chris" And PasswordTextBox.Text = "chrispass" Then
Me.Hide()
[code]....
The Form2 appears as coded above but the 'Me.Hide()' manages to hide the login form but then it appears again?
How can I load a form and allow it to run it's code in the form load but keep it not visible. I want it to do what it needs to but but not display.
View 3 RepliesProblem
Forms:
1) Splash1
2) frmMain
Purpose:
unloading splash1 and loading frmMain
Code used so far:
CODE:
Problem:
The Whole project is ended!
Problem2: How to Create and .exe?
Basic Problem: I Have started programming in VB.net today only, I have experience of 2 years in VB6.
So if anyone has fallowed any of my post, then you will know I'm still in the process of transferring to pure vb.Net, while simultaneously trying to rid any bad habits that stemmed from the good 'ol vb6 days.So having said I have a few question that are in regards to the GarbageCollector. Now I'm not looking to modify or mess with it at all, but rather it's exact functionality and where I should be disposing of and handling my own unloading.For the sake of my coding style I like to run my application differently than most(unless this is the way it should be done) but this only applies to my more large project.[code]
So as you can already guess my startup object is the AppMain sub, and I have the application framework disabled.I'm not sure how the Garbage Collecter functions, so truly I'm not sure if my code there is necessary or unnecessary. What it does is unloads all open forms that may have been left behind, plus it closes the database connection if one is open. Also I'm wondering if its a good idea to clear all my collection as well. My concern with the collections is just I have sooo much information being stored(it's a business management system that handles transactions, appointments, inventory clients employees etc etc) and this keeps growing. So I'm not really sure if all this gets handled automatically by the GarbageCollector or if it's good practice to begin clearing out this data and disposing it before hand.
In trying to test some graphic features, I am trying to get them to display on load so button doesn't have to be pressed. I used the following code as suggested from forum. Message boxes run but ellipses aren't displayed until button is clicked which is what I am trying to avoid!
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Button1.PerformClick()
Button1_Click(Nothing, Nothing)
[code]....
im having a similar problem like the solution here Prevent main form from appearing when showing another form . but some of the suggestions were to minimize the main app so it doesnt show, which i cant do because my main app is supposed to be a desktop to be underneath all other apps to replace the windows desktop. And the second forms are supposed to be sticky notes. so i cant minimize the main window cause it has the user background and other controls. i tried making the parent of the notes a Nothing pointer, a pointer to the desktop, creating the form through a dll but i had no success.My main problem is that when i click a note (form2) form1 comes up, even with form1 having the WS_EX_NOACTIVATE in the createparams. form1 does the form2.show() but they shouldn't be attached.Another reason im having trouble with the solutions preseted in that post is that they are for delphi and im doing it in vb.net.
All i need is being able to click on the controls and write in the note without bringing the main form behind the note. either making them independent, or making the note not focusing the first form or being able to operate the note without it activating. i dont know. my last resource is to attach my main form to the desktop but i've heard is the worst thing you can do because it can cause problems hanging the system.
I have a command button that when presed allows the user to rename a label on a control ( form ) b4 its loaded.i want to put a command in the forms load event to take out any spaces b4 text in label1.
View 5 RepliesI've found alot of examples for add/edit/delete a single table. In VB6 ADO you could load multiple tables into a recordset using the join command. Then manipulate or modify the data.
I've found how to retreive multiple tables like,
Da = New OleDb.OleDbDataAdapter("Select groups.groupid,groups.userid,lots.groupid,lots.lotid from groups inner join lots on groups.groupid=lots.groupid order by groups.groupid asc", DB) But the only way I have found to update is to use seperate Update commands for each table.
I would like to load a default created image at start. But seems to not be working on form load any ideas.[code]
View 5 RepliesHow do you fix this code so it works?
Code:
Public Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
[code].....
i have a webbrowser1 which cannot navigate from the link it is set up to, and cannot open new links in other windows, i need something like if get the URL Google.com when it clicked a link on the current site, then Form2.Show(). Link here <-- when clicked open form2 if its yahoo opens form3.
View 1 RepliesMy Problem is that I have a form that when a button is clicked loads a new form - code below. I want to fill a list view with data from a database in columns but that isn't the problem: Whenever I run the program and try to open the new form, the program runs up to the Rec = Connection.execute line before going back to the first form where I opened it up.
Public Class Form2
Public Const ConnectionString As String = "Data Source=PeopleBase.sdf"
Dim connection As New ADODB.Connection
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
I should also explain that the database is a local one and there are no errors or warnings that show up, it just runs like the while loop part isn't there.