I am working on a project that uses multiple forms, each with a listbox for output. I had everything working fine and decided to do some final tweaking. I added some comments and changed each forms FormBorderStyle to (Fixed3D) from (Sizeable). When I did a final test run, all of my listboxes come up blank... I went back and reverted FormBorderStyle to (Sizeable) from (Fixed3D).
All of my listboxs, on multiple forms, are still blank.
I have a form with 13 listbox's which I populate from an SQLCE database. Currently I have the same code written 13 times but now I want to run a loop so I can reduce the amount of coding. I cannot figure out how to make a loop work with the .datasource and .displaymember. The loop works fine up to the lines with .datasource and .displaymenber. I have tried all kinds of different syntax but nothing work. I have tried things like Position "& i & "ListBox.DataSource and many other ways.
Dim i As Integer
For i = 1 To 13
Dim da1 As SqlCeDataAdapter = New SqlCeDataAdapter("select WebsiteName from UrlTBL Inner Join Settings on UrlTbl.Type = Settings.Pos" & i & "Type where Urltbl.type = settings.Pos" & i & "Type", CS)
[Code].....
I'm in the middle of writing an application which fills two seperate listboxes with the name of all the contents in two different specified directories.The application is at the stage where this works, here is the code for it:
Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[code].....
I am running batch jobs on a job scheduler. One of the step is called 6 times so that we can execute the step parallely (to utilize the max server resource and to execuet the step in less than 2 hours rather 6hours). At the end of each instance it has to create a text file (6 instances = 6 text files) and the next job in the queue only runs when it could find all six files,
I am trying to create 6 dummy text files using vb.net.
1. to create a text file like file1.txt, when each instance of the step is completed running and it should exit the code after a file is create.
2. In this manner the code is executed 6 times and it must produce 6 files like file1.txt ....... file6.txt.
right know the maximum code i could write was ( and this is not correct)
Public
Function CopyFile1()
As
Integer
[Code].....
I have developed a win form application using vb.net 2.0, mistakenly my vbproj file deleted. Now the issue is that when i open the solution in the design view all my forms ( 170 + ) shown blank. but when i run the application all the controls are properly displayed and application is running fine. Issue is why all forms are shown BLANK in design view , as i cant make any changes to the design now.
View 8 Replieshow to stop a ComboBox from displaying blank data?
The query I'm using does not allow nulls but the ComboBox is showing black areas and the user can click in those areas.
The PureComponents ComboBox did not show the blank areas but when I started to use the ComboBox from VS 2008 the blank areas are showing up.
The attachment shows me clicking in a blank area.
I have the requirement to create an application that has multiple front ends developed using Windows Forms, WPF, ASP and Compact Framework Mobile Forms.I would like to be able to create a series of obejct representing the business logic and have this logic accessible from the various front ends available. My first thought was to use remoting as I'd like to be able to pass the business objects back and forth between client and server but the compact framework doesn't support remoting and also transferring a full framework business object to a compact framework business object doesn't seem possible.My next thought was to use web services but again the passing of business objects seems to be very hard to accomplish. Without doing this I would have to create individual web methods for each business operation.
Finally my next option is to use sockets and write the whole client/server logic within some classes and expose them to the UI/Business layer. My only problem with this is it is not scaleable should the number of clients increase dramatically whereas using remoting or web services I can host the solution via ASP.Net.Does anybody have an ideas on the best way forward for this or even have any input on how they would write an application that required a windows form, wpf, asp website and mobile device GUI all of which want to use the same business logic?
I have googled high and low to find an answer to this but I must be searching wrong.I have an application which has a listview displaying some items that are stored in a SQL Compact database. I am using a second form to add new items to this list directly into the database.When the second form closes I want to call the sub in my first form to refresh the list from the database.
How can I get it to fire the form1 sub routine on the close event of form2
i was doing a fair amount of programming many years ago, like 10 it feels like, so I'm sorely not up to date on how my newly downloaded Visual Basic Express expects me to communicate with it.I am writing a program that pulls a cell from a database after the user has gone through several forms to determine which cells they want. When I write it like that, it doesn't sound very efficient, but I've designed it this way for usability.Here's where I have a problem: Should I store the path the user takes in a string, an array, what?
Here's an example:Someone wants baseball stats and trivia. They run my program, main form pops up, they select National League button, the NL Form pops up. Now the way my program is set up right now, is there are two ListBoxes on the form, one is populated, and as the user selects a Team from ListBox1, it jumps to ListBox2. Once they've selected all the teams they want info for, they click a button Next.
What I now need the program to do is show the next form "Team: name" once for each team, and insert the name of the team on the form in the appropriate label which I'll have blank. This form will also do the Listbox thing except the first listbox will populated with Topics like HR Stats, Pitching Stats, Coach History, etc.
I have used the command:
For Each Proc as process in process.getprocesses
Combobox1.Items.Add(Proc.MainWindowTitle)
to populate a combo box with the list of current process windows, however for every process that doesnt have a main window title there is a blank space, is there a way that I could tell it to not insert the item if it's mainwindowtitle field is blank?
In my window application, Form1 variable eg. Public str as string. value blank/null when move to Form2 and Back to Form1. How to maintain Form1 varable's value when back to Form1 In vb.net if any one know, reply me soon
View 2 RepliesLaunch a dialogue window from the main form, and then another dialogue window from that dialogue window. If you close the second dialogue window and call dispose the main form vanishes under any other open windows. This doesn't happen by closing a dialogue window normally, but I am attempting (rightly or wrongly) to stop memory useage creeping up by disposing of it.
So, the question is - what method can be employed to maintain the position of the windows?
I have two forms frmMain and frmNew, and one module modMain. In modMain I hold public variables which are needed for application. My question is how to open and close those two forms when needed? I ask this because if i set frmMain as startup form, then when closed, application will end, and one of those two forms will always be displayed. Also if I set frmNew as startup form, then when I close this form, application will also end. Is there a way to do this from module or something so my application won't end after closing and opening any of those two forms?
View 2 RepliesVB.NET newbie here... I have an vb.net windows application set up. It has multiple forms, about 6 in all. There's a main menu form, and then 5 other forms to collect data. The user will collect data on each form and bounce back and forth between forms. How do I get the forms to retain the data that has been entered into the text boxes and/or other controls on the forms? For example, they might fill out a few textboxes on a form, but then need to go to a different form and fill something out... and then back to the previous form. Right now, when they come back to the form, all the data previously entered in to the text boxes is gone.
View 1 RepliesI am trying to write code with multiple forms. The first screen is splash screen then is supposed to close and have a calculations screen. In the timer of the splash screen I wrote the following code
Option Explicit On
Option Strict On
Public Class uiHinsbrookSplashScreen
[code]....
This opens the second screen, but when I Hit Exit on the Second Screen The first screen is still open. What do I need to do next?
I'm still learning vb.net, so I'm not terribly familiar with all the terminology, otherwise I would have searched a little harder before posting. I'm working on a program where the user can add various forms to a MDI parent.I would like each of the child forms to be part of the same array, all of the child forms will be of various types.Some forms may display a textbox, some forms may contain a graph, some forms may contain an image, etc.[code]
View 7 Repliesi've been working with multiple forms. here's the situation.. i have 2 forms form1 and form2 every time i show the form2 from the cmd Bttn in form1 then i close and reopen it again it always prompts me with disposal error.
View 3 RepliesIf 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 have 2 forms on a page, they are included in the masterpage like so:
Html.RenderAction("Form1", "Controller")
and
Html.RenderAction("Form2", "Controller")
[code].....
I have a secondForm that determines whether a checkbox.checked = true/false and I want the firstForm to verify whether the secondForms checkbox.checked = true/false in a function
View 1 RepliesHow would I go about designing something that will work on many different resolutions? For example, i have my monitor on a very high resolution, and when i work on my projects, the actual controls (buttons, text boxes ,whatnot) are in the top left quarter of my screen, because the program will have to be deployed on 800x600 machines.
Is there anyway to make it so it will stretch and look appropriate on different resolutions?
I'm using Visual Studio 2008 in vb.net. When I run my application both forms display even though I have a startup form selected in my application. If I select the first form I created the correct window is displayed, but when I select the other form to be my startup both are displayed.
View 3 RepliesI have been working for a while on this. I am trying to figure out how to make multiple forms .Such as a login form that leads to a second form. [code]
View 13 RepliesI am a beginner programmer, and taking my first course in VB.NET in college. I am writing a program that teaches the user step by step to solve a rubiks cube. One problem I am having is how to manage the 20 forms that make up my program. Currently, when the user procedes to the next step, I make the current form invisible, and show the next form.
ex. Nextbutton click
form2.show()
me.visible = false
[code].....
Is it possible to make an app where, for example, I will make one form which will have buttons linking to a number of other forms which take the place of the first form?To use a bad example to illustrate what I mean, where it will be like reaching the load game screen in Pokemon on Gameboy; I have multiple options that will all lead me to a new form (in the same window).
View 1 RepliesI have a working form that shows the product flow in a manufacturing plant.For various reasons,I need to create another form that is a duplicate of the original, but rotated 180 degrees.All of the underlying code to fill and handle events on the two forms will be identical.I don't want to have to duplicate and manage two sets of code to handle both forms.What is the best way to handle this?
View 16 Repliesi would like to say i am a novice programmer, in year 12. I am designing a small game for my HSC and one of my forms is getting very cluttered with controls and code. To resolve this cluttering, i have had the idea to create new forms for some aspects of the game (such as different game modes and so on). However, in order for that to happen i have to drag some variables of the new form to the old form, (these variables would be just booleans or integers to say whether you lost a game or won a game or something that would carry on to the main form.)
[Code]...
have a question. The scenario is this Main monitor (17 inch) is used for POS system.Will have at least 2 more monitors (50 inch tvs used for digital menu)I want the main pos program to be able to set what is written there (easy on a form) but have different forms to ALWAYS go onto one of the tvs (they would be plugged in via VGA).
I have read some examples but I havent seen anything with different size monitors.How can i ensure that the main program runs on the 17 inch screen while the 2 forms of the menu will display on tv1 and tv2 and the same tv each time?
To save from using several different forms in programs. I'd like to make just a few panels to represent each one. Then when I need to display one I just set it to visible or not visible.
For example, a quiz program. The 1st 10 questions are on one panel, the 2nd 10 are on a 2nd panel. They are both identical except different questions.
The problem is, when I try to put them both on the form, they have to be in different areas or else one will go inside the other. How can I keep several panels on one form without them going inside each other, in other words how can I keep them separate?
I have a "Open File" menu on form1 that reads the user input data from the selected file, stores them into variables, passes on the var. to my form2 and loads up my form2 with the user input data. My code works But when I close my form2 and button click form1 to open form2, I still see the same input data I want all my text boxes to be blank.
View 8 Replies