I made a calculation in one form using 3 textboxes. (I entered one number and multiplied it by another and got the answer in the third textbox.)
I need to bring my answer I got in textbox 3 into another different form later in the project.
how to do this? Something to do with a Module ?
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 doing a bar cash register and I want to use a if statement to see if fosters button and number 1 on the number pad are both pressed then multiply constant by quantity number
View 1 RepliesI need to open a form 6 times, I have the following
[Code]...
But when I click the button 6 times all the 6 forms open, but when I close one and click in the button to open again (since I only have 5 opened) the compiler says that I need to sure that the object isn't in use before using it again.
I have been going a couple of directions as I learn and try to figure out more. Basically, I have a form that has a tab control that contains 6 tabs and tons of controls on each tab. They are like Orders, Invoice, Customer Info, Quotes... What I would ultimately like to do is have individual forms that fit into the tab with a parent/child relationship as well as be able to not use them in a parent/child type of relationship so that they can be used as stand alone forms.
I have done something like this, but the form moves around. I would like to lock it into the top left so that everything lines up.
Dim frm As New Form2
frm.Show()
SetParent(frm.Handle, tab1.Handle)
I also have to pass values from sibling to sibling, but I think that I can handle that if I can come up with a good format.
So overall, I would to have forms that could be in a tab or just displayed as a child not in the tab.
I have a datagridview with checkboxes in the first column and I want to do a loop on saving the serialnumber(s) when the users decides to check a number of checkboxes Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
the problem with this code is that it only inserts the serial number of the LAST checked checkbox and the number of entries of it depends on the number of checked checkbox for example ... if I checked the rows with the serialnumber 123 and 55652341, first the row with the serial number 123 then second 55652341, only 55652341 appears in the database and it is entered twice(twice because two checkboxes are checked)
I have written a code and tried linking up groupboxes from my input form called input.vb and the output form called results.vb.
[Code]...
I have used the above codes to access groupboxes from both forms. However, at run time I get errors saying "InvalidCastException was unhandled" and below that it says "Conversion from string to DOuble is not valid". This error points to a value in a group box that is actually hidden or disabled.
how to have all forms have the same on closing event with the exception of one form (Form1). I want the forms to show Form1 when one of the other forms is closed. I know there is a way to do it, I just can't work out how.
My code at the moment assumes that each form will have a boolean declared on it as false that will only turn true if you use a legitimate way off of the page (i.e. a regular button on the form). If you instead click the exit button on the title panel it will find the boolean is false and show Form1.
So the only problem I really have is getting the code to apply to all forms without writing it for all of them.
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.
Launch 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?
VS 2010 Adding whole numbers between a number and a number
View 3 RepliesI'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 RepliesI am not sure I am doing this correctly,I want to get a multiple number of file types (gif, jpg, png, etc.) and store them in one variable so I can access all the files in that var. I read that GetFiles doesn't allow for multiple patters, so how do I do this so I can have more than one file type in a variable?
Dim aryFiGif As FileInfo() = di.GetFiles("*.gif")
Dim aryFiJpg As FileInfo() = di.GetFiles("*.jpg")
Dim aryFiPng As FileInfo() = di.GetFiles("*.png")
so I have a game in VB 2008 and 21 options for a something in the game and all 21 options have the same code but the number is different. for example: timerX.enabled = true where X is the number from 1 to 21. Is it possible to link them all to one Sub instead of 21?
View 6 RepliesI want to start multiple threads but not a specific number. For example;
private sub do_sth
...
end sub
[Code]....
I am trying to take a database with multiple entries of 11 digit numbers and run a check sum algorithm that adds the 12th digit to the 11 digits as an output.The algorithm is as follows:
Add sum of odd digits starting with first digit, then multiply by 3.
Add sum of even digits, then add to result of odd digits multiplied by 3.
Take result and divide by 10. The remainder is the check sum which needs to be added to the end of the original 11 digits.
I am created a Vb.net ERP Application! In this application I handle core accounting concepts. I have handled Salebill and many of accounting form. I take salebill billno from Database by selecting maximum srno from salebill Table but whenever multiple user trying to access this form at a time, everyone gets same billno. How I handle this situation to show different bill no to different users?
View 4 RepliesThe window is 600x600, because the game uses a 'grid' of thirty. Each food block is 30x30, and so is each block that makes up the snake. Here is my food making sub:
View 4 RepliesCan I send multiple files as 1 fax? I currently can fax one file at a time. I was wonder can I send multiple files to the same fax number on one call? Without physicall trying to combine files. For example. If I wanted to send a word doc and a pdf to the same person can I do that without having to dial twice? I hope that makes sense. I don't know if you can because I see that FaxDocment.body is string and not a list of strings. I am using FaxServer and FaxDocument. I just Found FaxDocument.Bodies. Does anyone have an example on how to use this? I know that FaxDocument.Body is a file path. FaxDocument.Bodies is an object? I don't see an list of path or whatever.
View 1 Replies.NET developing and have a simple question, i've been stuck on this for a while and searched many forums first with no solution so i'm posting myself. In VB for excel i've used Screenupdating=false to disable the screen updating however now i'm creating a visual studio 2010 windows forms application and its not showing up as a property. Here's the code i've tried.
[Code]...
I'm using VB 2010 and need to multiply 2 user input numbers in forms, so basically: TextBox5 = TextBox2 * TextBox3 That obviously didn't work but it shows what I want it to do.
View 3 RepliesI'm trying to figure a way to select multiple files from a folder and rename them and also add a sequential number to the end.Example: Take img_001.jpg, img_002.jpg and rename them to picture1.jpg, picture2.jpg and so on. There is a maximum of 50 files in each folder..
View 4 RepliesI was looking for a way to close a form using the ControlBox and it close a group of forms with it, without closing the whole program (only a certain number of forms) [code]...
View 5 Replieshow to use ListName.Find. I am trying to find a number in an a list of integers.
View 1 Replies