IDE :: NumericUpDown Control And The KeyPress Event?
Aug 9, 2009
As part of a program that I am composing, the user needs to enter a value by way of a NumericUpDown control on one particular form. Once this and other criteria have been evaluated, the program will then move to the next "step" of the program. If they use the spinner built into the NumericUpDown control, the event is fired on every change and that's all well and good, but if they double-click the value in the control then type the value in manually, it doesn't fire until the control no longer has focus. I can't depend that this might be the case however. Using the "KeyPress" event, I can in fact know when the control has focus and the user has typed but what I cannot seem to get it to do is to get the control to "read" these keystrokes as values until the control loses focus.
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Mar 15, 2010
well im creating a very basic game and im trying to use the keypress event to control my object. right now its set up through on screen buttons like
[Code]...
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Jun 20, 2011
I was asked to create an application that has a custom control that acts as a button. I managed to do almost all the requirements except the one for the KeyPress event. The customer wants to click the "Alt + C (for example)" to trigger the button click event in this case for a Cancel button. I did the code and it works fine ONLY when that custom control has the focus on it. But when it loses it, it doesn't. I don't know how to make the form accepts that KeyPress and sends to the custom control. I tried to set the form's KeyPreview property of the form to Ture but it didn't work too.
By the way, I know that it would work by writing the code in the KeyPress of the form but that's not the requirement because the user control will be used as a standalone component for many projects.
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Apr 9, 2010
Programming language is vb.net
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Dec 31, 2010
I want to set the TextChanged event in NumericUpDown box,so that when you press a key, it instantly fires the textchanged event.The default ValueChanged event of the NumericUpDown box does not instantly fire the ValueChanged event. You need to first press the Enter key after you enter a number.And I read somewhere that NumericUpDown box also has a TextChanged event.How do I set the TextChanged event in the NumericUpDown box?
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Aug 17, 2010
I'm letting users select a date/time for a scheduled task to run, using two NumericUpDowncontrols. I'd like one-digit values to be padded with a leading 0, so as to display 09:00 instead of 9:0.
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Dec 5, 2010
I have done some code so that when you choose a number from the numeriupdown it will look at the if statement and put the age into a category. the thing is the number in the updown doesn't go into the right category for me can you see what the problem is? [Code]
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Sep 23, 2010
So I'm currently working on a control that acts as a HTML editor. One of the thing that I need to do is insert tables, in order to do that I needed to provide the user with some options first. When thinking of the design for this, I decided to go with the form layout that Word 2003 uses;
Now as you may notice the third NumericUpDown control has "Auto" written in it. This is one of the values the other values include;
Quote:
0.7 cm
0.8 cm
0.9 cm
[Code]....
how I might be able to get my NumericUpDown control (or another control) to display those non-numeric options.
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May 16, 2009
I have not been able to find a way to get the datetimepicker with ShowUpDown= True and custome format set to h:m tt to increment in 15 min intervals. I have been able to set it when the form is loaded to the nearest 15 min increment. But I need it to increment in 15 minutes units.
This can be down with the NumericUpDown control, but I need two of them one for the hour and one for the minutes and set it's Increment property to 15. Again I can set it to adjust to correct hour and the nearest 15 min. And of course I have to watch and when I go over 60 reset to zero and increment the hour control.
The users will be burly oil field workers using a Panasonic Tablet PC with a stylus in the field. It seems that it would be easier if I could increment the datetimepicker in 15 intervals.
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Dec 5, 2010
I have done some code so that when you choose a number from the numeriupdown it will look at the if statement and put the age into a category. the thing is the number in the updown doesnt go into the right category?
'Assigning Textboxes and Combo Boxes To Memory
lblUsername.Text = Username
strCustomerName = txtCustomerName.Text
intCustomerAge = Val(NumericUpDownAge.Value)
[code]....
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Apr 26, 2011
I have 10 values to compare against each other for duplicates and would like a recommendation to do this most efficiently. The values are associated with the NumericUpDown control. I'm using VS and VB 2010.
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Jan 3, 2010
I have my numeric up and down control set up but there is one problem. When i run the application, there is an IBeam in the value box. I have got my alphabet and arrow keys mapped to other things so when i press them windows makes the annoying beep noise. How can i get rid of the IBeam from this control permanently? I have tried the read only setting but the beam is still there.
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Jul 29, 2009
For a NumericUpDown control in VB 2005, how do I distinguish between a change to the numeric value made by the user (by changing the text or clicking the up or down arrows), and a change made internally by my code? The "Scroll" event works for user changes to the TrackBar control, but not for me on the UpDown control, and the ValueChanged event doesn't distinguish the source of the change.
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Apr 25, 2011
What syntax do you use to add decimal data held in a NumericUpDown control, and add it to a one dimensional array? Is there a keyword to sum all the items in the array into one number(For averaging purposes)?
Dim heightarray As String()
ReDim Preserve heightarray(0 To UBound(heightarray) + 1)
heightarray(UBound(heightarray)) = heightNumericUpDown.Value
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Apr 27, 2010
I have created a user control tha inherits from the NumericUpDown Control.Is it possible to set the cursor position within the control?I am validating the text OnKeyUp, and formatting it when it meets certain criteria.To do this i have to do me.text = Fomatted(Me.Text), which sets the cursor back to the position 0, i want to set it to the end of the text area.
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Oct 20, 2009
The form has 2 ComboBox and 1 NumericUpDown controls. I would like to change value of NumericUpDown based on selection in ComboBox. For example:
ComboBox1 has three value. for instance, AAA, BBB, CCC
ComboBox2 has three value. for instance, DDD, EEE, FFF
The NumericUpDown should has range 0-6 sum of both ComboBox. For instance, if user select from ComboBox1 AAA and from ComboBox2 EEE the NumericUpDown should display value 5.
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Apr 26, 2012
How to show discontinuous value in NumericUpDown control by VB.Net? [code]...
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Mar 28, 2012
I have a form which allows the user to create a question to find items.One of the questions is in the format of Something > a numeric value..So I used the NumericUpDown control. I set the NumericUpdown control to a valid range of values like 1 to 100.The user can clear the numericupdown control in which case the "Value" property returns the previous value prior to the user setting it to a Null String.
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Jun 2, 2010
I couldn't manage what the matter is not even after searching. Here my question goes:I need to do a simple task (close my form on pressing escape key) and I use the following code:
Code:
Protected Overrides Sub OnKeyDown(ByVal e As System.Windows.Forms.KeyEventArgs)
Select Case (e.KeyData)
'Close on Escape
Well , it works when I click escape my form closes , but.. if I have pressed by accident or some else matter any of the arrow keys (up , down , left , right) before escape and then hit escape nothing happens. I checked if any other key does that and as I see it does not.
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Feb 15, 2012
I just want to ask why my KeyPress event is apparently not working. What I want is that when I press the letter m, the selectedindex property of my listboxes would change. Here is the code;
Select Case Asc(e.KeyChar)
Case 13
Try
tray.ListBox1.SelectedIndex = tray.ListBox1.SelectedIndex + 1
[Code]....
I also want to know what the "e.handled = true" is statement for. I set the KeyPreview property of my form to false and true but it's not working as well. the KeyPress event should be triggered regardless of the control within the form that is in focus.
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Nov 7, 2009
Is it possible to capture a keypress with my application, even if the application isn't focused?And if it is, could someone please point me in the right direction? (I.E things to look up, tutorials)
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Nov 15, 2011
I am trying to create keypress handler that will execute a line of code when Tab, Space, or Enter key is pressed or passed by the scanner gun while the control is in focus. I got it to work with space and enter key but with tab key, the cursor will just jump to the next tab stop without executing the code.
Private Sub Button2_KeyPress(sender As Object, e As System.Windows.Forms.KeyPressEventArgs) Handles Button2.KeyPress
Dim keyChar As Char
[Code].......
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Mar 4, 2009
I'm trying to create an application that uses a PictureBox to display an image. I use the arrows keys to switch images and the space bar to rotate the current image. Since the KeyDown or KeyPress events don�t get fired when I click the arrow keys, I had to override ProcessCmdKey. It works fine, the problem is: the applications also has a few buttons and when I click an arrow key the image gets switched but the button�s focus change as well, worst yet, when I press the space bar, the image gets rotated but the button which has the focus gets pressed.
[Code]....
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May 13, 2009
I have a NumericUpDown control with a range of 10-50 and I want to have the selected number be multiplied by an amount of money to create yearly cost. I dont know, however, how to use inputted data from the NumericUpDown control in a statement because I cannot convert it to Integer and I also dont know how to call in the data even if a number is selected.
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Jun 1, 2010
I have two textboxes and as the user types in one I want to append the text to another textbox.How do I allow the user to delete characters in the first textbox with backspace/delete key and have those changes replicated in the 2nd textbox?
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Mar 11, 2009
how to capture keypress event outside an application
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Jun 2, 2011
We Could Easily Called A Functions By Pressing Enter In keypress Event. On textbox in vb.net. Eg.:-
If e.KeyChar = Microsoft.VisualBasic.ChrW(13) Then
Call Fsn()
End If
But. I can not called the functions on ComboBox. IN similar fashion. please help me to called a Funtion when we press ENTER IN ComboBox.
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Jun 22, 2010
I am trying to add to items to a combobox by using the "enter" key. It does work when I add the first item, but if I manually clear the box and add another items it does not get added to the list.
(1) I click in the combobox and type "hello" and press the "enter" key
(2) I click on the dropdown arrow and see that "hello" is in the list
(3) I select "hello" in the box and erase it, item is still in the list
(4) I type "goodbye" in the box and press the "enter" key
(5) "hello" is still in the list but "goodbye" is not
Here is the code:
Private Sub CopyrightCombo_Keypress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles CopyrightCombo.KeyPress
If e.KeyChar = Microsoft.VisualBasic.ChrW(Keys.Return) Then
[code].....
if I comment the if/end if line and type "hello" the items added to the combobox list are: "h", "he", "hel", "hell", "hello" wich makes sens since the add items is run on every keypress? I know that my commands for adding items is good, I know that my keypress event is handled properly but not when I specify using the "enter" key.
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Dec 26, 2009
using a datagridview and it bind by 3 rows and 3 columns,my task is when the press the F5 key then need to execute some code, my problem is if the datagridview cell is focused then now i press F5 key then the next task is executed but if the cursor is in the cell and i press F5 Key then the Key events was fired
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Jul 19, 2010
I am using the Event Handler below for the Enter Key Press Event, it is running when ever any of the keys is pressed. This is not so much a problem when the app. is running, unnecessary yes. It is giving me problems when ever I am Debugging using Breakpoints. How can I change the Handler so it only runs when the Enter Key is Pressed, doing away with the If statement?
Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
If e.KeyChar = Chr(Keys.Enter) Then
'Different code blocks will run here depending on what
'TextBox or Label is selected.
End If
End Sub
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