C# - Why Focus Rectangle Not Shown Until Tab Key Pressed
Feb 10, 2012
I have a weird problem (probably only to understand) why in a test app the focus rect is not shown until I press the tab key. I want to show a dialog with two radioboxes and two buttons. When I display the dialog, I'd like to see a focus rect around my first radiobutton. (So that the user can see where the focus is.) I ordered the controls and set the tabindex property from 0 to 4 so that they are in the correct order. (radiobox 1 has tabindex 0, ...). When I show the dialog the first radiobox has the focus, but it has no focus rect around it. (Until I press tab key.) I created an completely empty winforms project (Visual Studio 2010), added the controls and started it. So there is nothing special at all.
Here is the code of my sample:
Public Class Form1
Private Sub Button1_Click(sender As System.Object, _
e As System.EventArgs) _
Handles Button1.Click
Me.Close()
[Code] .....
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Jun 11, 2011
set focus onto a text box when the tab key is pressed because at the moment the focus jumps all over the place
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Mar 11, 2010
What is the best way to implement a rubber band /focus rectangle on a web page?In other words, I want to be able to navigate to a web page like people.com and use the rubber band / focus rectangle to some html content (images and/or text)and I do realize I can simply highlight the content that I want but I am trying to do this via the rubber band / focus rectangle...
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Dec 16, 2011
The only way I found to set the focus on a TextBox inside a TabPage is:
Private Sub Form1_Shown(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Shown
TextBox1.Focus()
End Sub
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Sep 26, 2011
I am making some sort of panic program where if any key is pressed while the person is using the process in the combobox, it will kill the event....
I.e lets say i am playing a game (or googling something) and I press control-alt
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Apr 9, 2010
What is the best way to implement a rubber band /focus rectangle on a web page?In other words, I want to be able to navigate to a web page like people.com and use the rubber band / focus rectangle to some html content (images and/or text)......and I do realize I can simply highlight the content that I want but I am trying to do this via the rubber band / focus rectangle...
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May 9, 2010
im working on a little app for my self, to make my life a little more convenient. I have some media keys on my laptop, and I would like to use them with itunes while it is minimized. I found a app that did it for me a long time ago, but cant seem to find it now. But I would like to try my hand at my own, and I've managed to do so, but, my app has to be in focus for it to work. is there any way to still detect when these media keys are pressed while my app is out of focus?
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Jul 26, 2010
i've got a little problem with List(on T) variables.
[code]...
It works perfectly fine. Does anyone know what the problem is?
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Aug 14, 2008
How can I set a button, so that when it is pressed, it stays in the pressed down graphic state. Then when pressed again it returns to the normal not-pressed visual.Make a button stay like this until pressed again: url....
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Oct 17, 2011
I have a TextBox and set the MiltiLine property to true and AcceptsTab property to false.When the TextBox has focus and i press Tab it works fine and the next control get the focus, but when i press Ctrl+Tab it works as if AcceptsTab property is set to true and makes a tab character into the TextBox.The reason i press Ctrl+Tab.. when switching between forms in my MDI application.Now how to make a Ctrl+Tab when pressed works like Tab when pressed in a MultiLine TextBox?
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Feb 22, 2010
Given a rectangle of width w and height h. and a coordinate x,y in that rectangle I would like to identify which triangle I am within.
i.e. the function should take parameters(x,y) and return a,b,c,d or a zero based number representing that triangle index i.e. (0=A,1=B,2=C,3=D) if they are in that order.
I think this would be something like >= the formula of the red line and >= the formula of the green line?
I'd like to implement this in VB.NET
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Dec 3, 2011
This code is to draw rectangle. How can I draw rectangle divided to four rectangle or more
e.Graphics.DrawRectangle(Pens.Coral, 50, 200, 30, 40)
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Jul 26, 2009
I'M creating a kind of photo viewer, and I cannot figure out how to orient the scroll buttons with the photos I want to draw because they all are different sizes.This is really hard to explain so please ask questions if you don't understand.I'M thinking if i could draw every photo on a single rectangle and then the scroll bars will position that rectangle up or down. but is there a way to make a rectangle inside another one so it only shows inside that rectangle?
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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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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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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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Dec 15, 2010
Is it possible to set focus on the keydown event so after the button control, sets the focus into the keydown? although says often control can have focus,.Putting a button and a keydown event on a form...
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Apr 24, 2012
Why this is not working any solution?
Private Sub DataGridView1_Selectionchanged(ByVal sender As Object, ByVal e As System.EventArgs)
con.Open()
[code].....
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Oct 18, 2011
I have a Datagridview collections embedded in several Tabpages of a TabControl. I want to use to control Button to import data to the datagridview. Data is different for different datagridview. I want to know which DataGridView is currently shown (on the top) when I click the control button so that I can send corresponding data to it. What shall I do?
[Code]...
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Feb 1, 2011
i can't get the data to be shown in the datagridview
what am i doing wrong here? i think the problem starts in the ---- if then statement
Private stylist As String
Private treatments As String
Private klantnaam As String
Private Collindex As Integer
[Code]...
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Oct 7, 2011
I have a form consisting of datagridview and two buttons of update and load all.. I have used fillby method to obtain data from database. The query seems to be working fine, except that the data is not shown in the gridview. As in, for the qeury, if the returned rows are 2, it will show 3 rows in the gridview, but all empty.
Imports System.Data
Imports System.Data.OleDb
Imports System.EventArgs
Imports System.Data.OleDb.OleDbConnection
Imports System.Data.OleDb.OleDbCommand
[Code] .....
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Dec 22, 2010
i am using this to send an email but i want a notification to be shown when the message was sent.
Dim message As New MailMessage
Dim smtp As New SmtpClient
message.To.Add(TextBox2.Text)[code]....
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Aug 18, 2010
"For tax purposes an item may be depreciated over a period of several years. Write a program that request a description of an item, year purchased, cost of the item, the number of years to be depreciated (estimated life) and the method of depreciation (combo box), compute and display a depreciation schedule for the item similar to the schedule below. NOTE: FOR NEXT for Straight line method, DO WHILE LOOP for sum of years, DO LOOP UNTIL display table of depreciation."i don't know it this is correct 'cos when i run it, it doesn't show anything. when i clicked compute
Public Class prjactivity6
Dim intyearp%, intlife%, intmethod%, intstraightyear%
Dim dblcost#, dblstraight#
[code].....
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Dec 7, 2010
I'm using Windows 7 Aero DesktopI've seen in many applications like Google Chrome, Microsoft IE that when a download is in progress, the windows taskbar shows the progress of it's download something like in green color.
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Jan 5, 2009
I need a Timer, named tmrTimer to become disabled when a Message Box is shown, but I'm not sure how to write the If statement for it..
I know that it has something to do with If MessageBox.Show = True Then' This is where not the timer disabling..
tmrTimer.Enabled = False
End If
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May 26, 2010
I am trying to create a new customised textbox using vb.net 2005 usercontrol. And also am new to .NETWhen i add the property Text() it does not shown in design modeThe user control code is like :
Property Text() As String
Get
Return MyText.Text
[code]....
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