Problem
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.
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].....
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?
My Startup form open very slow. How can I show a wait screen while Initialize Component. Then close this wait screen and show my Form.
You can see my attached image.
If I have a large number of classes, each similar to the other in certain aspects (they all share a common base class, but each does things differently), and I need to create Windows forms for each to allow easy changing of their values through a GUI? Create one matching form for each object in VS' forms designer, Or Use code to create the forms dynamically at runtime.
#2 makes the most sense to me, because a lot of these objects will share very common features of the form, notably "Ok" and "Cancel" buttons. But one object might need to draw a textbox on the form while another might need to draw a combobox. Not to mention, if I want to put icons on the "Ok" and "Cancel" buttons, I'd have to do this for each copy of the form in designer, and that sounds like it could get out of hand quickly.But is drawing forms through code sane? VS' forms designer is pretty sophisticated and designed to make life easier. Am I wise to consider ignoring its functionality and diving into the trench warfare of forms design through code? Or are there examples of automating form creation based on an existing object's properties?
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?
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.
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.
I am designing a yahtzee game in Visual Basic. I am wanting to save the form's background color and the picture boxes dice so they can be set the next time the form is loaded. The user can change the background color of the form and choose between several sets of dice. I want the last color the form's background color was and the picture of the last set of dice used placed back in the picture boxes of the dice the next time the user opens the Yahtzee game. I am trying to do this in a module, with generic collections of all the picture boxes on the form. Am I able to do this before the form loads?
View 5 RepliesI'm trying to load and host a WPF control in a .net 2.0 windows forms application. The WPF control should only be loaded if .net 3.5 is installed.
I found a link to Hosting WPF Content in an MFC Application and that is about what I'm trying to do but my C++ knowledge isnt sufficient to be able to 'translate' it to .net.
here is another link: Hosting WPF Content in a Java Application that doest the same again but I dont know where to start writing that code in .net.
when i run my app how do i make a certain form load first before any other form?
View 6 Repliesi have a problem with loading forms in VB and i was hoping someone can help me. this is the code i made:1st form.form name: formload.vb [code]now the thing is whenever the loginform appears when i successfully entered the accounts the form the userinterface will appear and the loginform disappears for a few seconds then reappears again.i wanted the loginform to disappear the only form that is visible is the userinterface.how to make database of accounts where the login form depends on?
View 4 RepliesI have a grid loaded with data. What I wanna do is when you double click on the row header, the data in that row should load into a form with textboxes. I've chosen the RowHeaderMouseDoubleClick as the evnt for this but dunno how to start.
View 2 RepliesI want to load picture dynamically within VB.NET and the following code does not work due to 'loadpicture' not existing in VB.NET.
picturebox.image=Loadpicture("tick.jpg")
i have a problem in loading an image from a file in vb.net. I have the following code in the class of my project.
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
[code]....
So, now I've exactly used this code to load an image from a path specified. Still, i seem to get a blank form when i run. im quite sure about the path and the existence of the file. Also, the exact piece of code is also available at: Draw an image : Draw Image2D GraphicsVB.Net Tutorial So, now do i have to insert a picture box to se the loaded image. Its like.. ive used the graphics thing to draw the image. so i reckoned that picture box was unnecessary.
Is it possible to load an image into a picturebox when that picture box is clicked? What would the syntax look like? It's an image that I already dropped onto the form that I would like to load into that picturebox.
View 1 RepliesI'm not able to find my answer from threads.I want close the loading of web page when it take more of tot seconds...(if is possible with a Firefox or IE)
StrAdrress = "http://www.google.com"
Try
System.Diagnostics.Process.Start(strAddress.Trim)
Catch ex As Exception
MsgBox(ex.Message, MsgBoxStyle.Critical, "Error")
End Try
Threading.Thread.Sleep(50000) So you can see I wait 50 seconds now..Is it possible to convert this code in : if the page not load in 10 seconds, stop load,close the tab and open another tab with another address?
I have a main form when loaded will display a login form. I want that when the main from loads, the login form and another form will be loaded side by side.How do I show two modal forms?
View 2 RepliesI have a main form when loaded will display a login form. I want that when the main from loads, the login form and another form will be loaded side by side.How do I show two modal forms?
View 19 RepliesNow I need to avoid exception error for when I move, minimize and close any of the other 3 forms for the program I am building. ZOrder?. I was thinking of using an if statement to determine the zorder of each form. I need to know how to implement the if statement.
Option Explicit On
'Route User to the desired page
Public Class Form1
[Code]....
I am programming in VB9 WPF and Blend 3. I was working on a program in Blend 3; I can work on all my forms and everything runs fine in Blend, but when I opened it in VS the WFP forms would not display (I have five of them in my program and they all have the same problem in Visual Studio.), but I can run the program in VS, see the forms in run mode, and work on the code behind with no problem. I can't determine what is causing the WPF forms error in VS. It appears I have a "ResourceDictionary_4 error, but I cannot locate that dictionary in either Visual Studio or Blend. I even tried searching my entire computer and can't find any trace of it. Are there any ideas as to how do I solve this problem? The error messages I am getting are:
[Code]...
I am designing a yahtzee game in Visual Basic. I am wanting to save the form’s background color and the picture boxes dice so they can be set the next time the form is loaded. The user can change the background color of the form and choose between several sets of dice. I want the last color the form’s background color was and the picture of the last set of dice used placed back in the picture boxes of the dice the next time the user opens the Yahtzee game. I am trying to do this in a module,
View 21 Repliesthere's an img src=blah on a web page that I am loading with a webbrowser control, and I want to alter it to say img src=blahblah instead ... What I've been doing so far is waiting for the document to complete, doing a .replace, then saving the file to the hard drive, and finally navigating to that local altered version.I was wondering if it's possible to skip the step of replacing and reloading the local page, and instead, just dynamically alter the original source code of the page AS it's loading the first time. Can this be done?
View 2 RepliesSo I am nearning completion of my 7th major project And I need the application to load files into ram when the application starts..Almost like a splash screen but with a loading bar.I have to load over 90 JPG's And I would like to have them in RAM so the application isn't so slow at first IE System.Load(My.Resources.JPG1) And LoadingBar1.Value += 10 Etc, etc.I have a Form I have created as a splash screen..I need it to load all the JPGs before starting the application..
View 6 RepliesI have a picture box on my form along with a combo box with a number of different options. So anyway when a combo box item is selected I want it to look in the dataset for the selected item's row and pick out the image to load and then using an IF statement it sets the image (or should).
Dim RaceImg As String = DS.Tables("tblRaces").Rows(ID).Item("RaceImg")
If RaceImg = "AusGP" Then
GP_Picture.Image = Image.FromFile("./Track Images/AusGP.png")
ElseIf RaceImg = "MalGP" Then
GP_Picture.Image = Image.FromFile("./Track Images/MalGP.png")
End If
I have tried a number of different ways to get this working, I have tried them in the resources for the program and also tried the following code
GP_Picture.Image = "./Track Images/AusGP.png"
It seems like the picture box isn't redrawing or something? Just to add it will load the first image which is the AusGP because thats the first option in the combo box, after that none of the others will load.
Sub laad_leden()
Dim myConnection As New connectdb
Dim tabel As New DataTable[code]....
While loading the data to the program the window freezes. It shows the progressbar but the progressbar is also freezing.How can i let the progressbar marquee while loading / freezing.
I have a form which asks for a username and password to connect to a MySQL database. Before I load the login form I would like to place a check to see if the connection information is stored in the My.Settings.<connection string..I am using Sub New() in the Form.Designer to do this by placing the following [code]The connection form does show but when i close the form there is a blank form that shows up.
View 3 Repliesi am having trouble loading data into listview from access database
Try
Dim iForLoop As Integer
Dim ds As DataSet
[Code].....
I was writing a program that would save the contents of a listbox to a database and wanted to reload the users' choices when the opened up that particular row again. My first thought was to do it with two for loops, just as I used to do in VB6, but I thought there must be a better way to do it. And there was. Sort of. It basically involves using the SelectedObjectCollection class.For this demo, you'll need a listbox called Listbox1. Set selection mode to something other than "One" or else it won't work as expected
Dim items(0 To 3) As String
items(0) = "One"
items(1) = "Two"
[code]......