I use VB in VS2010..My form has a textbox..I can control the keyboard entry by using the SuppressKeyPress method..However this does not work for the Menu key - I think it's the menu key - the one that looks like a combo with an arrow.This produces a large drop-down menu which I don't want.On checking various forums it appears that the following code should work..[code]
View 1 RepliesI am trying to make a program with a bar code reader for the first time. I am programming with VB 2005. I want to differentiate a bar code entry to keyboard entry. My questions:
1. Does bar code reader generate a keydown (or keypress) event for each of the digits of the entry? For example, if the barcode read: 1234567890, does that mean that there will be 10 keydown (or keypress) events for that single barcode that was read?
2. I have read from the posts that the best way to differentiating keyboard vs bar code input is to analyse the time between keystroke (for less than certain number of milliseconds).
I am trying to make a program with a bar code reader for the first time. I want to differentiate a bar code entry to keyboard entry. My questions: 1. Does bar code reader generate a keydown (or keypress) event for each of the digits of the entry? For example, if the barcode read: 1234567890, does that mean that there will be 10 keydown (or keypress) events for that single barcode that was read?
2. I have read from the posts that the best way to differentiating keyboard vs bar code input is to analyse the time between keystroke (for less than certain number of milliseconds).
All I want to do is to stop my application at a certain point, wait until a certain key is pressed - say for example the space bar, then continue execution. How simple is that! Any other normal programming language, this would take me a few secs - but not VB2008
View 7 RepliesI get this error
Unable to find an entry point named 'UpdateResource' in DLL 'kernel32.dll'.
I want to supress a key for a textbox: [code]this is working, B key is supressed,but adding just a messagebox will not work..[code]
View 1 RepliesI have a form with textboxes for entering data. One of the textboxes is for entering a value that is always one character. How can I make the cursor automatically jump to the next control when a character has been entered? I'm thinking the key press and release event and then set focus but is there a better way?
View 3 RepliesI have found a program called ledsdriver( http:slicksolution...edsdriver.shtml ). i can control the serial ports on your pc but also the keyboards lights (caps lock,num lock and scroll lock). The good thing is if i connect 2 keyboards i can chose which one i want to change the lights.I want to make one that could control the keyboard lights but only on one keyboard. I wold like to make my own because i could customize it(that one isn't open-source). How can i do that?
View 3 Repliesi want to make a program in which the server can control the mouse and keyboard of the client
View 2 RepliesI have a ListBox Control containing 5 items. This control displays the current condition and allows the condition to change. The ListBox.SelectedIndex is calculated from the current condition (normally item 2 in the list) and displayed. If the user requires to change this condition the Keyboard Up/Down would be used for navigation (The App is very keyboard intensive), however if the ListBox.SelectedIndex is set at 2 and the keyboard down arrow is pressed the selected item displayed changes to 0 not 3 as required. Is there a way to synchronise the keyboard control with the current selected index?
[Code]...
How can I set a datagridview control to not add a new empty row when I add an entry?
View 2 RepliesI use in java JTable looks like a excell sheet create columns and rows and enter data in it.In vb 2008 what control i can use, I think table control layout not supported to data entry it supports control to in it and then add data .
View 1 RepliesI want to write a Visual Basic script for excel, which will take values from the cell and then put them in the specified fields in a 3d party application using global mouse positioning commands (smthing like ... SetMouseXY(X,Y,MouseButton); Keysdown(Ctrl+V); ...).
View 2 RepliesHow do I handle the event of pressing the keyboard's Enter Key in a VS2008 Visual Basic application?I have a Textbox control (Textbox1) and a label control (Label1) as the only items on my form, I want the Text in textbox1 to be copied to label1 when I press the keyboard's Enter Key . I used the following code:
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
[Code]...
how can i control Data Entry in 3 different table with BeginTranaction / Commit /Rollback in vb.net 2008. i am using sql server 2000 at back end and used SqlClient,SqlConnection, ExecNonQuery method.
View 1 RepliesI need the directory entry control properties and events.
View 1 RepliesIm trying to build a user control to enter date as dd/mm/yyyy. I want to create a text box control so the user can enter the date without making a mistake.ex:-Lets assume that the user is trying to enter 31/03/2010 so when the user types 3 first the next number allowed should only be 1 or 0 because there cant be any date more than 31.and if the user enters 31/ then he should only be allowed to enter a month which has 31 days. Im trying to implement this codes in keypress method.So it checks the errors at runtime and prevents the user from typing a wrong value.So far i have got to something like this but Im stuck.Please help
Dim IndexOfCursor As Integer
IndexOfCursor = textbox1.SelectionStart
chr = e.KeyChar
[code]....
Im coding an application that will remotly control the mouse and the keyboard.For the mouse i found this and converted it to vb.net:[code]
View 4 Replieslogic to build this kind of data entry form using grid controls in vb .net.
View 3 RepliesI don't think this can be that hard but I just can't get my head on it. I have a connection to an Access DB, put three text boxes representing three columns in the DB. Using the DataNavigator everything works. But what I want is to be able to enter text in say textbox1 and have textbox2 and 3 update, like when using the navigator.
Add: I want this to function like when you enter a record number in the Navigator and hit Enter, bam, goes to that record and all the text boxes update. I want to enter a number in textbox1...
I have a DataGridView in a form. I want to control the entry of data in the columns with the event ChangeColumn for the associated DataTable.
View 4 Repliesi am pulling together a cash register that will allow both bar code product entry and manual key entry.imagine if you have a tin of beans in front of you, in a small corner shop they would probably type "47" and then hit "Produce". Fairly straight forward as I have the button Produce to act upon my code and update my salestrans.mdb but,if you scan the bar code I want the same form to handle both 'real' actions, (i assume that keyboard emulation barcode scanner includes "ENTER" after providing 13 digits)....
Q. in perhaps a long winded way i want to know how to kick off an event based on the "ENTER" key being activiated by the barcode scanner)?i do not want to have to hit any buttons if i am scanning bar codes.
What is the code for ignoring the case of an entry while checking to see if the entry is correct or not... (i.e. in a flashcard program... given definition, asks for the name) I don't want the case of a character to affect whether the answer is correct or not.
View 2 RepliesThis isn't really a VB specific question. It's .Net in general... if you have ideas in another .Net language, let me know... I know most of the .Net languages (I don't know that foxtrot or what not weird ones). Furthermore this isn't a 'I don't know the method on some class I should be using' kind of question, it's a design/problem solving kind of question.I'd like to know how you'd approach the problem with in the boundaries set.
View 3 RepliesIt does work on some machine's but wold not start on other computers. from the code line's I see the problem is related to devex components.
View 2 RepliesWhy wont this work , im trying to set it so that when i press enter it will navigate my browser instead of having to click the button
on the code it says "SuppressKeyPress is not a member of systemEventArgs"
Private Sub Button2_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Enter
If e.KeyCode = Keys.Enter Then
WebBrowser1.Navigate("http://www.google.ie/search?q=" + TextBox1.Text)
e.SuppressKeyPress = True
End If
End Sub
I am trying to subclass the password recovery control in asp.net (4) so that I can override the behaviour of the OnVerifyingUser event but I'm having trouble adding my subclassed password recovery control into the page. I tried creating an asp:placeholder control and adding a new instance of my subclassed control to it but I just get an error that says "An entry with the same key already exists". I've tried doing this in the page_init and page_load methods but get the same error.
Here's an example of my subclass
Partial Class MyPasswordReminder
Inherits PasswordRecovery
[code].....
Consider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:
[Code]....
I have created a virtual keyboard like the "Windows onscreen keyboard". So, I have used the method sendkeys.But if I click on the button, it doesn't write nothing.
I think I have a problem with the FOCUS.As you can see, the "Windows onscreen keyboard" is always on top.This doesn't happen to my form. How can I do?
1. On the main form a scanner class is instantiated that (in the scanner's constructor) sets the scanner settings (baud rate, parity, etc) and opens the scanner for use
2. A barcode is scanned (via a scanner connected to the device in a seral port) while on the main form
3. In the scanner class, the DataRecieved event gets the needed info from the scanned code.
4. Then that info is passed back to the main form to a method RunCommandCode (which takes the scanned info as an argument)
5. On the main form the RunCommandCode calls another method CommandCodeHandler, passing the scanned info again
6. In the CommandCodeHandler sub a method is called in a Utils class (SetSelectedTab), which interacts with the form itself (determines how many tabs exist on a tab control), which is the reason for the invoke in the first place
So, before I figured out I needed to use the Invoke method (and, more specifically, that the scanner was working in a different thread), I was getting an error in step 6 on the line that got the TabControl.TabPages.Count.
[code]...