I've been encountering this problem. When I add a listbox at my game, all my keypress events and codes doesn't work. But when I remove it, it will work again. I don't know what's the problem. I need the listbox to add strings on it for my game.
View 2 RepliesHow do you handle the screnario wherein multiple data entry forms are open and modifying one could potentially affect the record being modified in other forms?
View 3 RepliesI have a textbox and a listbox and I'd like to have the listbox add an item (based ontextbox) when enter is pressed.I am using vb 2008
View 2 RepliesI have been out of VB since VB 6, but am back into it to write a basic app. I have created a listbox and am able to add data to it from a textbox via a command button. However, I want to give the user the option to simply press the enter key after they have entered the info the textbox, instead of clicking on the command button. I tried calling the function the command button is using from the "ENTER" event on the textbox, but all that does is execute the function when I click on the textbox? I'm sure this is very simple. What am I missing?
View 5 RepliesI want to detect F2 keypress as a shortcut to show something.. this is like F1 to show help in vb.net.
View 5 RepliesI am very new to vb.net, just wonder can I use vb.net to do something like this : I have alphabet from [A][B]...to [z]. When A is clicked, product name that start with "A" and it's price will shown in a table below.
View 1 RepliesI have created the following piece of code to try and see if the user pushes the 'f1' key, and if they do.
[Code]...
I am not sure if this code works yet because the keypressed event is not triggered when I push a key. Could someone tell me how I can change my code so that it will test what key is pressed, no matter what control on the form has focus?
i know this has to be simple but i can find anything anywhere tonight on how to check if while a textbox has focus if the ctrl+v or ctrl+c was pressed i simply need to use it like such:[code]
View 4 Repliesthis is my code in VB.NET 2008 and it works as the result, i can input starts from 1.00 until 99.99
but i need more than this i want the textbox automatic validate the input as i typed in the textbox
example: i typed "1000" then the textbox will write "1,000"
example: i typed "10000.99" then the textbox will write "10,000.99"
nb: it has to disabled from typing ","
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I have several multi-line textboxes that I want to lose focus (i.e. when the user presses the right arrow key) but the control wil not relinquish the focus.Simply put, I first verify if the selection start is at the end of the text, if it is, and the user presses the arrow key, it should move to the next textbox. some debug.print code placed in strategic locations indicates that the target textbox gets focus and immediately loses it and the source textbox gains focus once again. Essentially not allowing the textbox to lose focus.
Select Case
Case Keys.Right
tbRight.Focus()
[code]....
After changing the source textbox multi-line property to false, it behaves as expected. Is this a "feature" .. surely I don't have to resort to "SendKeys"
Programming language is vb.net
View 1 RepliesI have a question here.. pls kindly advise.I need to design a simple form that allow user to choose the value from Listbox A to Listbox B. For example, in Listbox A, have value A, value B and value C, then user can choose (or highlight value B and value C) and copy into the listbox B.
May i know how can i do this in vb.net? Any reference link?
Conflict with Name Space Excel?
View 4 RepliesI am trying to do two things and I am having a conflict. I want to restrict the number of charcaters someone can type in a text box (numbers and letters) and also make sure all lowercase letters are changed to capital. For some reason my script works fine on numbers limiting them to 3 but I can type in as many letters as I want. How can I make the maxlength work for numbers and letters?[code]...
View 3 RepliesWhat I want to do is whenever I want to add subjects to my listview it will check first if either the schedule is conflict or not. i have a starting time end time, and days but i dont know whats the proper condition to use in order to check if its conflict or not. anyone can help me on this matter this ive been struggling about this for several days.[code]
View 3 RepliesApologies for the long post, but I would be very greatful for any advice given. I have developed a visual basic application to communicate with a device through a COM port. This application works fine. The device connected to the COM port sends information relating to the status of the device, this information is read in using VB and inturn written to an SQL database. Using the visual basic application the user can also send commands through the COM port to the device. The application scans the users computer and detects all available COM prots, these are presented to the user and they can select which one to connect to. The COM port is held open for the entire period that the program is in use (this is to allow for the incomming information to be read)
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I am using Umbraco (a .NET CMS), and it has a reference to a specific version of a DLL (see 1 Umbraco Reference below). This is fine until I try to hook into the .NET MailChimp API which references a different vesion of the same DLL (see 2 PerceptiveMCAPI below).I can think of a couple of options for resolving this
a. Get either the Umbraco or PerceptiveMCAPI source and reference the same version of the DLL, really do not want to do this for compatibility reasons
b. Dump the 2 DLLs in the GAC, I want to avoid this as I see deployment issues arising if someone forgets (I know we should have an automated deployment but time is restricted)
I remember that there is a third option to specify what version of the DLL to use in the configuration. Is this possible and what is the code for it?
1 Umbraco Reference
// Assembly Reference CookComputing.XmlRpcV2
Version: 2.4.0.0
Name: CookComputing.XmlRpcV2, Version=2.4.0.0, Culture=neutral, PublicKeyToken=a7d6e17aa302004d
[code]....
I've got a bound Combobox in a database for a lookup but when i set it up and change the data in the combo the program won't let me go and further. There is a data conflict but i don't know where. The problem is here in the combo setup:
Display member : ProductName (nvarChr(20)
Value Member : ProductID (int)
Selected Member: SelectedLookup (int)
This doesn't work. Everything is displayed in the dropdown by name but when i select a item. I can't go any further. If i change the Display member: to 'ProductID' the program works fine. but displays the ProductID where users won't understand. It's like it is trying to store the 'displayed member' Product Name instead in the Value Member 'ProductID'. if i use a list box instead the program works correctly.
making a class scheduling system. I want to detect conflict in day,section,start_time,end_time,room,teacher in the MSSQL database.
View 7 RepliesI have a datagridview in which the user can add new rows. The datasource is a datatable who has a unique-constraint for the column "Position". Thus, if the user enters a position already existing, an exception is thrown. To avoid the ugly standard error message, I simply handle the dataerror-event and set e.cancel = true. This works. But if the user presses escape, the row_validated-event is triggered. I use this event to format the rows containing new data by changing the font color to red. Here another exception is thrown (SystemOutOfRange-Exception) telling me that the index xxx has no value. How can I achieve row-formatting for new/modified entries without getting this error?
Here is my code:
''' <summary>
''' Catch exception and cancel illegal action.
''' </summary>
''' <param name="sender"></param>
''' <param name="e"></param>
[Code] .....
For a project I am working on there are two namespaces. Currently,[code]...
The problem is that when I have the button click inside the ScreenCapture Namespace, it gives me an error with the Handles Button1.Click saying " Handles clause requires a With Events Variable defined in the containing type or one of its base types". If I move it out of the namespace however, it tells me that Function1 is not defined.
I have a form to set reminders on it. When I write a 1 reminder, everything works well. But when I write 2 reminders in same time, it comes this message.(Column 'Reminder_Time' does not belong to table Reminder.)
Dim i As Integer
TextBox3.Text = DateTime.Now.ToShortDateString()
TextBox4.Text = System.DateTime.Now.ToShortTimeString[code]......
am doing my thesis entitled Automatic Exam Scheduling System. this works when button "GENERATE" is click. that would initialize the automatic assigning of proctors and rooms to classid.....plz help...i can't filter the conflicts of proctors and rooms since it is automated.
View 2 RepliesWe were using Ofiice 2003 since long but now we are migrating to Office 2010.The problem that we facing now is that in our Workbook based on Excel 2003 we had a few ranges with names like BCD1, DOT1 but now in Excel 2010 BCD1 and DOT1 are cell names. The new version changes the BCD1 to _BCD1 automatically but we have to manually change the Macro code for the same which is a cumbersome problem.
PS: Some code that would automatically change the required in Macro Code.
I write an HTML file with MS Word, and use it on my application. The problem is that I need to close Word or Visual Studio in order to save the file, or compile the code, because each one reserves the file permission rights. The html file is only written by word, and only read from VS. At compile time, the file is copied to execution directory. Is there a way to give both programs simultaneous permission rights?
View 4 RepliesThe following zipped up Visual Studio Solution on Skydrive is immediately buildable and runnable; a usercontrol on a Form. Problem? If you click on any of the Edit Buttons and move the Horizontal Scroll, the values as they change in the Label_Values are off by one when you release the slider button. I think this is a timing problem between the Paint handler and the Horizontal Scroll event handler at the very bottom of the User Control code. Sorry I didn't eliminate
View 2 RepliesI am working on this app and decided to add a listbox to the form since a listbox can contain objects. The objects I decided to add are buttons. When I launch my app. I see the listbox and what appears to be where the buttons are but no text is being displayed. Maybe I am missing the point of the listbox. Can I have buttons in the listbox and have the text display for the bottons?
View 1 RepliesI have a listbox on my form, and a procedure that scans a certain directory for sub-directories, it then adds each subdirectory as a item in the listbox.
ex :
g:movies2010Clash of The Titans
g:movies2010Date Night
g:movies2010Red Dawn
[code].....
I remember in the old VB6 that there was something simple as listbox.add("my string", 1 This '1' would meant the position I want it to be added, which means 'the top'I'm sure it sounds newbie... but hey, what a heck... I'm only been programming .net for a few months.
View 3 Repliessimple problem that i just cant figure out. here is the code
[Code]...
this code works fine as long as i dont remove ALL items, the error i am getting is index is out of bounds of the array, i have tried -1, -2 0 +1 +2 and all are still giving this error, i cant just create code for remove all as i wont always need all removed so i kinda of have to get this code or something similar to remove only checked items. the code below is code i have tried
[Code]...