Activate Form On MouseEnter Event Not Working
May 25, 2010
I'm trying to make my application become the active window if it currently isn't as soon as the mouse enters the main form of the application (so there is no need to click the title bar of form itself to make the window the currently active one if it's not).
It only sorta/kinda work .... I have to enter the form with the mouse 3-4-5-6-maybe 7 times ... then the window finally becomes the active one.
I know the MouseEnter event is firing each time the mouse enters the app, but the main window isn't becoming active most of the time.
Private Sub frmMain_MouseEnter(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.MouseEnter
rtbStatus.AppendText("Just got a frmMain.MouseEnter event" & vbCrLf)
[Code]....
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Jul 23, 2010
We have a VB 2 VB.Net migration MDI application , we have a messagebox in Deactivate event ,once you click Ok for Message Box ,the focus must be set on to the Child Form which is active.
[Code]...
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Mar 30, 2009
I am using VB.NET for Windows applications. What is the difference between Load event,Activate event and Enter event in the Form and in which order the above event is executed.
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Jul 22, 2011
I am using VB.Net for my Windows application. I will open two child form from MDI. Both forms will open. Now if I will go from form1 to form2 then Activate event for form2 will not fire.
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Nov 28, 2011
I've recently run into an unexplainable issue regarding a windows form application I am working on. I've managed to isolate the issue to a single line of code whereby a single TabPage is removed from a TabControl, leaving no tabs left in the TabControl's collection. What happens next is a bit mystifying: my application proceeds to enter a state in which the main form's Activate event is fired subsequently followed by its Deactivate event. As a result, no matter where I click on the form, the application will activate for a split-second then immediately deactivate itself, thereby causing me to be unable to interact with any other GUI controls on the form. I thought maybe another thread is trying to interact with the deleted tab object, but the tab is created and destroyed on the same main gui thread. Does anyone have any insight that may point me in at least a new direction? Stepping through the debugger to the point in code where the tab is removed does not cause any exception to get thrown, so at first glance there doesn't appear to be any coding issues going on (although I would not be surprised that is actually the case!).
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Mar 30, 2012
I need a 'low-coded' way on how to use 'MouseEnter' and 'MouseLeave' event (in Visual Basic 2010) on a Web Browser, but strictly as OBJECT. So I don't need any of those HTML stuff... I just want one small Web Browser to dissapear when I take my mouse off him...
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Nov 19, 2011
I'm trying to make an image fade in/out when the user hovers over the button. The fadein works when I enter the button but not when I leave it. How can I make this work?
Animation Code:
Private Sub GreenBg_animation()
Dim myduration As Duration = New Duration(TimeSpan.FromMilliseconds(250))
Dim da As DoubleAnimation = New DoubleAnimation
da.Duration = myduration
Dim sb As Storyboard = New Storyboard
[code] .....
Button code:
Private Sub btn_2_MouseEnter(sender As Object, e As System.Windows.Input.MouseEventArgs) Handles btn_2.MouseEnter
GreenBg_animation()
End Sub
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Dec 2, 2011
I have text for ToolStripStatusLabel1.Text in a file which is read into an array.
There is an array of PictureBoxes, which are used for the MouseEnter event.
I am trying to display different text in the status when the mouse is over a certain image. In the code below, the Array.IndexOf() generates "Index was outside the bounds of the array.". The commented line will change the text when I change the Index but, it changes it for all images.
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May 8, 2011
I want to change the background color of an element when the mouseEnter event fires. How to make the color of the background darker?? I thought I can use an opacity mask, but it's a gradient, but I need it to be solid. Also it has to be in visual basic code, not in xaml.
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Feb 18, 2011
When i use my UserControl in a project my Mouse Enter & Leave events aren't firing, i assume i fix this with a raiseevents in my usercontrol. However when i try to do this it says something about "cannot raise base event from derived class".
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Apr 14, 2011
I am creating a web browser in VB 2010. I have a search box, and I want to make it so that when I press enter in the text box, it searches. [code] The problem with this is that when I press enter, there is this annoying "beep". I don't know where this comes from. The only thing I can think of doing is making the event activate the search button, but I don't know how to do that either. How can I fix this?
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Aug 17, 2010
I'm instantiating an instance of FormQuoteCard from formQuoteList, formQuoteCard has an event and I'm adding an event handler to form1, but when i raise the event in form2, nothing happens:
[Code]...
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Feb 14, 2010
setting the form opacity programatically in the MouseEnter and MouseLeave events.The problem isn't with the actual events, the problem is that the events occur in places where I don't want it to happen.So in my project, I have a form with 3 user controls in it. The user controls are docked in the form so no actual space from the form is available to the user.
I have the methods:
Form1_MouseEnter(~) Handles Form1.MouseEnter, UserControl1.MouseEnter, UserControl2.MouseEnter, UserControl3.MouseEnter
Form1_MouseLeave(~) Handles Form1.MouseLeave, UserControl1.MouseLeave, UserControl2.MouseLeave, UserControl3.MouseLeave
when you enter the form, the form opacity is set to 1. And when left, the form opacity is set to 0.7 .However, what happens right now is obviously that when the user changes the mouse position from one user control to another, the form opacity flickers (turns to 0.7 and back to 1 really fast).
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Jul 11, 2011
I am attempting to create a timer that will activate a tick event every 1 second until stopped by an "If" statement. The tick event should then drive a clock measuring time in units of hours, minutes and seconds. The if statements handle the time readout, timer stop and activate another form after a set number of hours have elapsed. I have tried several different methods and while my application is running, it does not add increments to the integers representing the time units, refresh the displayed time units, or perform any of the timer related functions. I assume the cause is that I just don't know as much as I think I do (which isn't much)
Here is the applicable code:
Imports Microsoft.VisualBasic.ApplicationServices
Imports System.IO
Public Class SessionManager
[Code].....
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Nov 30, 2010
MSDN brings nothing up, so here was my attempt at a work around.
[code]...
Because event leave calls another sub i need the last active control. I have the textbox name txtTime{0} but obviously string is not a control.
So Two questions:
1) can a string value be attached to an existing control if i know it's name? Dim attControl as Control = newTime
2) All this could be avoided in event leave if i could get the left controls name. I have tried sender. tostring etc but nothing returns the textboxs name
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Sep 23, 2009
I am working a building a form that is generated using Project|Add Windows Form|Form.
In the Load procedure, I placed the following code:
dbObject.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c:scdbv4datascdbdata.mdb"
rsObject.CursorType = ADODB.CursorTypeEnum.adOpenKeyset
[Code]......
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May 17, 2009
I've been having a problem setting certain items in a listbox as checked when the form is loaded. I have tried putting the code in the form_activate, form_load, and form_shown events and each still crashes when it encounters:
[Code]....
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Dec 27, 2009
In my project i have 4 Forms including main form. Form2 is open through main form then Form2 remain active until user close Form2.Mean to say Form2 not allow any other form active until user closer form2.
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Apr 2, 2011
On my program I am trying to make a form that would activate the program.I have the activation codes but when the user enters the activation code in a text box, is it possible that it would erase that activation code or wont accept that activation code again after being used once. Then if the program accepts the activation code can it open the main form (form1) and if the user closes the program and the re-opens the program, is it possible that the activation form doesn't open again and instead, going to the main form. I have this password code:
Private Sub textbox4_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MaskedTextBox1.KeyDown
Static WrongCount As Integer = 0[code].....
Then can there be slashes every 4 characters in the text box?
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Jun 28, 2009
how to capture the text that a user enters in a textbox when they press the enter key? I thought there was an event that handles this but I can't quite seem to get anything to work.
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Nov 18, 2011
I am having three forms
1. Main page
2. Input page
3. Output page
I want load event to be activated whenever coming from Main page to Inputpage and activate event when coming from output page to input page.But what i am getting is that only for the first time load is activated and for all other only activate is called.
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May 12, 2009
I have a program where the main form is called (shown/activated) via a keystroke combination. When the form pops-up, I've set the focus to a textbox to begin typing right away.
When the keystroke event occurs, I have:Me.Activate()And in the Form_Activated event:
Textbox1.Focus() Simple right? It works the way I want it to, even after I've compiled and run the EXE, but ONLY if Visual Studio 2008 is running. Once I close my project in VS, with the program still running outside VS, the form is shown, but input focus is not set to the textbox.
Input focus is however still set to whatever it was previously, like a word document for example. My form will be topmost, but if I attempt to input text, it would still be entered into the word doc. why having my projects' source open in VS has anything to do with running the compiled EXE of said program?
I've even tried API calls to SetForegroundWindow and ShowWindow with the same result.
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Jul 29, 2010
My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area does not activate the child form -- its title bar remains gray, and it does not receive Activate or GotFocus events. Strangely, however, the clicked-on form actually DOES receive the focus, because its controls receive mouse and key events. Only the Z-Order and the highlighting do not change.
Once this problem develops, it persists even after the 'troublesome' form is closed, and it affects child forms which are opened afterward. However, if ALL of the child forms are closed, the problem clears up, and new child forms behave normally -- until the next 'troublesome' form appears.
I have no idea why one kind of child form is troublesome, and others are not.
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Jul 1, 2011
I have a form with some buttons i built in visual studio basic 2010 When I left click a button it uses 1 value...but I want to be able to right click the same button and it use a different value i cannot find anywhere how to activate the right mouse button so it presses the buttons on the form so it use the different value i specify.
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May 8, 2010
My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area does not activate the child form -- its title bar remains gray, and it does not receive Activate or GotFocus events. Strangely, however, the clicked-on form actually DOES receive the focus, because its controls receive mouse and key events. Only the Z-Order and the highlighting do not change.Once this problem develops, it persists even after the 'troublesome' form is closed, and it affects child forms which are opened afterward
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Mar 4, 2007
I use the "NodeMouseClick" event to activate my sub function when I select a single node. But the event occurs also when I click on the "plus" simbol NEAR the node, to open it.Is it possible to activate the event only when I click on a node and not when I open it?I hope to have well explained my problem.
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Mar 10, 2009
Can i automatically turn on or activate the CAPS Lock key when the form loads?
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Apr 14, 2010
Load , Initialize , Activate . What's the difference among them ? Up to now I was used to the classic VB6 events , but it seems that in .NET they are different . I was used to these ones :Load / Initialize : both the first step before showing a form . One appeared in VB6 , the other in VBA .Activate : triggered when a form is selected .However I thing that now , not only they differ , but they also come in a different order ...
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Jun 10, 2011
I am having two issues with making my Maze Game in VB.NET. I want the levels to be difficult to solve so I am making some *sliding* (NOT MOVING) Panels to interrupt the players.These are my problems:
1. I want the Panel to slide (Sliding Up and then Down, then Up and Down, then Up...) forever, but it doesn't. It will only slide the times I have written the code.
2. I want the MouseEnter event to work when the mouse touches the Panel during the Panel is sliding.
3. Is it right to use a Timer?
Here are some details and the codes which I have used:
I have first made an Integer = 6 for the speed of sliding.The timer is not enabled and started. It will be started and enabled when Button1 is clicked.
Timer's interval: 100
Panel's name: Panel1
Timer's name: Timer1
When the user clicks Button1, Timer1 starts, which will slide Panel1. (My code is for moving the panel. I need to slide the panel. IT'S WRONG![code].....
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Feb 28, 2007
I want to change the default row backcolor when either the MouseHovers over it, or Mouse clicks on the row, then return it to the default color when the mouse leaves.
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