Stop A Listbox From Stealing Focus?
Aug 4, 2010
I have a list of textboxs that are binded to a database.
When a user starts to type in one of these textboxs I draw a listbox right under that textbox that shows a list of other items in the field that start with the same keys.
IE, the user types in "Ni" and the list box will have "Nick" and "Nicholas" and so on...
That all works great but when I hit tab I want the next textbox to get focus and the listbox to hide.
If I just wait for the textbox to lose focus you can't do anything with the listbox because DOH the textbox just lost focus and the lsitbox hides.
This has led me in a circle of I'll try this and I'll try that for a while now.
I have listbox.tabstop set to false.
I've tried to manually set focus to the next textbox but the problem is that the listbox gets the focus that instant and all the gotfocus lostfocus code for the textbox is ignored.
I can't out right ignore the listbox getting focus.
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Apr 15, 2012
In my WPF application I have a notification window that appears at the top right for 3 seconds and closes. Just a normal notification window.But when it appears, it takes the focus away from any window that was active.For example, if I'm typing in Chrome and the window appears, chrome looses focus and my typing is halted.The notification window is set to top most so that it will appear on top of other windows, but how do I go about stopping it from stealing the focus of the user?
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Jul 12, 2010
I have a VB.net form which has two webpages embedded. The webpages have a 5 second auto refresh built into the HTML header as the information is constantly changing.
The problem I have is when I pull up a secondary form, I lose focus to the 'Main' form everytime the webpage refreshes.
Is there any way to stop the webpages autorefreshing in the form and I will build in a refresh command into a timer I already have in place and then I can start and stop the refresh at will.
Unfortunatly I cannot amend the source code of the HTML as this is required for a different process elsewhere.
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Mar 6, 2009
I'm working on a program to wish my girlfriend a happy birthday, my idea is to show a label like a notification, similar to the one used in messenger, but I want it to be on top of whatever she is working on the computer at the time, even games (she's a hardcore gamer). Is this possible??what I'm asking for is a form on top of everything, not stealing focus, and if she presses a key, for example "q", the message activates no matter what she is doing. I'm a beginner, and I know how to do the label, the key press, but I don't know how to do the above mentioned
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Mar 10, 2009
When I run my VB.NET Winforms app I do not want it to steal the focus from the other open apps. FYI, my app is started from the command line but that shouldn't make a difference. I've seen question 577076 but that doesn't seem to work.
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Aug 4, 2011
how to prevent a popup toolbox window (Form) from stealing the parent Form's focus?I've been told to override CreateParams and use WS_EX_NOACTIVATE (0x08000000) but that does not seem to work (see the code segment shown below). I'm using Show() and not ShowDialog().
Protected Overrides ReadOnly Property CreateParams() As System.Windows.Forms.CreateParams
Get
Dim cp As CreateParams = MyBase.CreateParams
[code]....
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Mar 17, 2010
I am working on a data entry type form and I want the enter key to move focus to the next text box. I've got that working great except that the focus is moving to the label that is, in sequence, between the text boxes.
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Nov 7, 2011
I have a custom UserControl that contains just one TextBox. When I set the control to Enabled = False, the TextBox is disabled but the control is not (control still fires the Enter event).
How do I ensure that the UserControl will not receive focus?My Enabled Property Looks like this:
Private _Enabled As Boolean = True
Public Shadows Property Enabled As Boolean
Get
Return _Enabled
End Get
[Code]...
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Dec 14, 2010
I have set a scrollable control's autoscroll to true. What do you do when you don't want a scroll to occur? For example, suppose you have a RichTextBox and a button side by side as below:
Notice that "button1" has the focus. If you click on the RichTextBox to give it focus, the scroll bars will scroll until the upper left corner of the RichTextBox is in view.
But what if, for whatever reason, you wanted to keep button1 in view? How would you do that?
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Sep 3, 2011
How do I autoscroll my richtextbox?
Form1_Load events;
How do I make it do this event occasionally? Like maybe every 5 launches, it does the event?
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Jan 17, 2012
So i have a Panel which on Mouse Enter and Mouse Leave i change the visibility of some controls which are docked inside it. Problem is whenever I hover over a control within the panel the Mouse Enter then moves to that indivual control and thus they are made invisible. Is there any way i can make this work without having to code these two events for each control within the panel?
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Apr 25, 2009
I have 4 Listbox's on a form.
I can click in all 4 and they maintain focus.
How can i remove focus from all the Listbox's except the one i have just selected when i select a Listbox?
I have tried
Me.lstExternalDoors.SelectedIndex = -1
Me.lstInternalDoors.SelectedIndex = -1
Me.lstInternalWindows.SelectedIndex = -1
and
[Code].....
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Mar 28, 2009
I'm developing a program in WPF (VB) that relies on keyboard navigation only.In my program, I have a listbox that displays up to 20000 items.What I want is that when the listbox has keyboard focus, and I move to the bottom item that is visible (using ArrowDown), I want the focus to move to the next item outside the listbox. I'm using PgUp and PgDown to scroll the listbox contents, and text search to jump to items.Is there a way to detect if the focused/selected item is the last/first visible item in the listbox?If so, I could just use:
ListBox1.MoveFocus(New TraversalRequest(FocusNavigationDirection.Down))
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Jan 11, 2012
I have a listbox where items are shown and vertical scrol bar is present.
listbox property Drowmod =OwnerDrawFixed.
There are two columns in my datasource table active and value
'Implemented in Drawitem event.
[Code]...
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May 26, 2010
I have a listbox on a form and when the user selects a value and the listbox loses focus I want to validate the value the user chose. How do I call my function once the listbox loses focus?
I tried using a custom validator but it gives me an object is missing error.
Mike
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Mar 28, 2010
There are 2 non-modal windows displayed- 1]Form1 contains a Listbox with a list of forms 2]Form2 is the form which is selected in that list Form2 consists of a Maskedtextbox T1. In the Leave event of T1, the validation of text is done. If the data is invalid, a suitable Messagebox is displayed and Focus is set back to that Maskedtextbox (T1.Focus()).Now, if I enter any invalid data and click on the Listbox in Form1, the following things happen:
1]T1 Leave event is entered, focus being on the Listbox
2]Invalid data message box is displayed
3]Focus is set to T1(T1.Focus()) of Form2
4]After End of event, T1 Leave event is again entered. And now, Focus has changed back again to the Listbox.
5]Again Messagebox is displayed and T1.Focus() is done
The issue is, after step 3(focus set to T1), the focus is reset to the Listbox in Form1. Hence Leave event is entered twice and messagebox is displayed twice.
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Aug 1, 2011
I have a ListBox with proxy and a webbrowser, the webbrowser has a timer for navigate to some urls. I want stop the timer when the listbox(proxy) is empty.Example:1-I got 10 proxy in a listbox and 20 Urls in other listbox: I want to stop the webbrowser when the last proxy was used.
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Oct 16, 2011
How can the Arrow keys be stoped from changing the selection in a ListBox? Hendri Bissolati noviceprogrammer@vodamail.co.za
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May 10, 2011
To do is stop the last line, begvalue = begvalue - depreciation, from showing up in the listbox. I tried an if statement but that doesn't work
Depreciation to a Salvage Value of 0. For tax purposes an item may be depreciated over a period of several years, n. With the straight-line method of depreciation, each year the item depreciates by 1/nth of its original value. With the double-declining-balance method of depreciation, each year the item depreciates by 2/nths of its value at the beginning of that year. (In the last year, it is depreciated by its value at the beginning of the year.) Write a program that performs the following tasks:
Requests a description of the item, the year of purchase, the cost of the item, the number of years to be depreciated (estimated life), and the method of depreciation. The method of depreciation should be chosen by clicking one of two buttons. Displays a depreciation schedule for the item similar to the schedule shown in Figure 6.23. Figure 6.23. Depreciation schedule for Programming Project 7. [URL]
This is the code I have so far:
Dim yearpurchased, cost, life, depreciation, begvalue, total As Double
Dim item As String
[CODE].........................
I need to get the last two numbers on the bottom right of the table.
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Feb 16, 2011
Is there a more efficient/easier way changing the backcolor of a control when it has focus and lost focus? Let's say I've got 10 text boxes. Right now I would have 20 different events...10 for Enter event and 10 for Leave event. Of course, entering would change the back color to "green" and leaving would change it back to "white".
[Code]....
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Mar 10, 2009
Here is what I've done:1) Created an Excel COM add-in for Excel 20032) Added a NotifyIcon to the Windows taskbar notification area (aka system tray) during ThisAddIn_Startup3) Added a ContextMenuStrip with a ToolStripButton to the NotifyIconWhy is it when I right click on the NotifyIcon, Excel gains focus? If after clicking on the NotifyIcon to display the ContextMenuStrip I choose not select an option on the ContextMenuStrip and instead click back on the Excel window, I get a weird flashing cell in Excel.I've created a video of the problem to help you see what I [url] anyone know how to prevent this? Ideally, I'd like to be able to click back on Excel and only have the ContextMenuStrip close and Excel regain focus.
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Nov 26, 2009
I have two forms in an application. One is he background and then I show another keypad form called with the show() method (not showDialog) because I need to perform some validations on btn click.
The kepad has 10 buttons and an Enter Button. The problem is that the form keeps loosing focus (I checked this with a messagebox which keeps poping up once for focus=true and again for focus=false, it continuously keeps losing and gaining focus) so it does not process any keypress events untill i click somewhere on the form. I tried using me.focus() in form load event but to no avail. The forms TopMost property is also set to true.
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Feb 26, 2009
Alright, so I'm still working on the slot machine. I have three timers all independently going for my three "wheels" of the slot machine.
My issue, is that I'm trying to make a Stop button to stop each timer one at a time, and I'm not understanding why this code isn't working. The logic completely makes sense, and the first "wheel" stops when I click the button, however, it doesnt appear to stop the other two timers.
CODE:
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Jul 18, 2010
recommend a book that focuses on the .NET framework in general and isn't too language specific.
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Mar 21, 2012
I have a textbox on a form that when it loses focus it updates other text boxes on the form. But before it updates the other textboxes I check the input value in the textbox lostfocus event if it is undesired I return focus to the the textbox and alert the the user with a msgbox. However where my problem is, is that when the cancel button is clicked I don't care what the input in the textbox is because the changes are being canceled but if the value is undesired the it keeps returning focus to the textbox instead of canceling the changes. Is there a way to see what control was clicked on before or in the lost focus event? Can't seem to figure it out tried enter and leave events but no luck!
So for example something like this...
Code:
Private Sub TextBox1_LostFocus(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.LostFocus
If Control that was clicked <> btnCancel then
[Code].....
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Dec 24, 2009
I have a simple application that use thread pool to read a file and input the data into a listbox. I want to be able to stop threadpool from running after clicking a stop button. How do I stop threadpool? Here is the code for my application below:
Imports System.Threading
Public Class Form1
Private Delegate Sub StringDelegate(ByVal text As String)
[Code]....
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Dec 7, 2009
I created a form and have the variable inputs for 4 motor run statements. Then with a start button the script starts and it is surrounded by a for next statement to loop 10 times. It works fine but if i need to stop the execution of the script with a stop button. I put the stop in a new section but of course does not work to do a motor stop. It just causes the exe to not respond till the loop is complete. Just need to be able to stop the Run1_Click button section.
Edit:I do not mind if it finishes the 4 motor run commands and then stops execution of the loop. So need to figure out a way to trigger a stop from a button on the form to stop the cycle. For the future the loop will be a variable integer input so 10 will not be the standard.
Edit::Does a ' Do ' statement sound like the thing to use? If so how and where would I place that? Have a Stop button on the form and it would stop after the 4th motor run command.
#End Region
Declare Function InitStp Lib "stp.dll" () As Integer
Declare Function RunMotor1 Lib "stp.dll" (ByVal steps As Integer, ByVal interval As Integer, ByVal direction As Integer, ByVal outputs As Integer) As Boolean
[code]....
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Oct 25, 2011
After I did a sendkeys to another program from my form, i wanted to return focus to the form. i tried me.focus = true but that doesn't work.
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Nov 7, 2009
I am having problem setting focus on specific cell in my Datagridview1 . On Form1 when clicking on cell 3 in any row, I am callig a Dialog1. However, when done working with it, and closing the Dialog1, the focus returns to cell 3 in my Datagridview1 . I like to set the focus on the next cell(4) making it the current cell.
I have tryed :
DataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect
DataGridView1.CurrentCell = DataGridView1.Item(4, e.RowIndex)
DataGridView1.CurrentCell = DataGridView1.CurrentRow.Cells(4)
And few other things, I am always getting this exception: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.
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Mar 1, 2011
I have a START and STOP button and when the user clicks "start" the program does a whole bunch of calculations and all. However, I noticed that when I was testing the program I clicked STOP the program continues to execute stuff.
My START code is basically a while loop that iteratively does some calculations.
So I just put a boolean variable as the while condition and when user clicks stop its set to false and when user clicks start its set to true. However, when I click stop, the condition is set to false yes but it still executes all the code until the condition is re-evaluated right...so my question is how can I get out of the while loop when user instantly clicks "stop"?
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