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c# how to catch mouse event outside textbox

i need to hide a ListBox when I focus out a textbox. if i click on a different control or use Tab key then the textbox's "Leave" event occurs. But if I click inside the form, on any free space, then focusout doesn't happen. i saw something called mouse capture but i cant implement it.
i tried this:
private void txtProduct_Enter(object sender, EventArgs e)
{
listProduct.Show();
UIElement el = (UIElement)sender;
el.CaptureMouse();
}
private void MouseClickedElseWhere(object sender, MouseEventArgs e)
{
if (e.Clicks >= 1)
{
txtProduct_Leave(sender, new EventArgs());
}
}
private void txtProduct_Leave(object sender, EventArgs e)
{
listProduct.Hide();
}
but obviously it shows error. how do i achieve this? any help?

I had to make click event for my groupboxes even if groupbox doesnt have a click event by default.
//my_page.designer.cs
this.groupBox2.Click += new System.EventHandler(this.groupBox2_clicked);
//my_page.cs
private void groupBox2_clicked(object sender, EventArgs e)
{
listProduct.Hide();
}

How to detect a full mouse click (both down and up) on a control?

In WPF with MVVM (and no code-behind), say I have a Rectangle. If the user clicks on the rectangle, I want to perform an action. I effectively want the action to occur on mouse up. However, I only want the action triggered if they performed a full click (i.e. both mouse down and mouse up) on the rectangle. If they clicked down over some other control, held the mouse down, moved it over the rectangle, and released the mouse, I do not want to trigger the action.
There is the MouseDown event and the MouseUp event, but what I effectively want is a "MouseClick" event (like in WinForms). Is there any built-in mouse click event/trigger/something functionality? If not, what would be the best way to approach this? Custom trigger? Attached behavior?

Well, it isn't perfect, but I created a custom trigger to solve the problem. I'm still open to any better solutions if anyone has one.
public class MouseClickTrigger : TriggerBase<UIElement>
{
private bool _isMouseDown;
protected override void OnAttached()
{
this.AssociatedObject.MouseDown += this.AssociatedObject_MouseDown;
this.AssociatedObject.MouseUp += this.AssociatedObject_MouseUp;
this.AssociatedObject.MouseLeave += this.AssociatedObject_MouseLeave;
}
protected override void OnDetaching()
{
this.AssociatedObject.MouseDown -= this.AssociatedObject_MouseDown;
this.AssociatedObject.MouseUp -= this.AssociatedObject_MouseUp;
this.AssociatedObject.MouseLeave -= this.AssociatedObject_MouseLeave;
}
private void AssociatedObject_MouseDown(object sender, MouseButtonEventArgs e)
{
this._isMouseDown = true;
}
private void AssociatedObject_MouseUp(object sender, MouseButtonEventArgs e)
{
bool fullClick = this._isMouseDown;
this._isMouseDown = false;
if (fullClick)
{
this.InvokeActions(e);
}
}
private void AssociatedObject_MouseLeave(object sender, MouseEventArgs e)
{
this._isMouseDown = false;
}
}

Whaaaaat??? I dont your problem... Why cant you do something like this:
private bool isMouseDownInRect = false;
<Rectangle Width="100" Height="100" MouseUp="UIElement_OnMouseUp" MouseDown="UIElement_OnMouseDown" Fill="Black"></Rectangle>
private void UIElement_OnMouseUp(object sender, MouseButtonEventArgs e)
{
if (isMouseDownInRect)
{
// My code
}
isMouseDownInRect = false;
}
private void UIElement_OnMouseDown(object sender, MouseButtonEventArgs e)
{
isMouseDownInRect = true;
}
I hope this is what you asking for.
EDIT:
Dont forget to handle the mouse_enter/leave event...

How to transfer control of a mouse operation when the button is still pressed

I have a series of events for a Panel – MouseDown , MouseMove , MouseUp. I also have event handlers for a Label on that Panel. But in certain cases I want the MouseMove handler of the Label to "transfer control" of the operation to the Panel's handlers. Problem is that the action is "locked" to the Label, so something like panel1.MouseMove += ... won't help because the panel1.MouseMove won't be raised until a MouseUp. Is there any way to "transfer control" of the operation?
Here's a simple example of what I have: (label1 is on panel1).
public Form1()
{
InitializeComponent();
label1.MouseDown += label1_MouseDown;
}
void label1_MouseDown(object sender, MouseEventArgs e)
{
panel1.MouseMove += panel1_MouseMove;
}
void panel1_MouseMove(object sender, MouseEventArgs e)
{
Text = "success";
}
The Text isn't changed until MouseUp.

You could simply call the panel1_MouseMove in label1_MouseDown when needed.
void label1_MouseDown(object sender, MouseEventArgs e)
{
panel1_MouseMove(null, EventArgs.Empty);
}

Mouse events not fired

I'm making a C# WinForms application. The MouseMove and MouseClick events of the form aren't getting fired for some reason. (I'm probably going to feel like an idiot when I find out why.)
It is a transparent form (TransparencyKey is set to the background colour) with a semi-transparent animated gif in a Picture Box. I am making a screensaver.
Any suggestions?
EDIT:
MainScreensaver.cs
Random randGen = new Random();
public MainScreensaver(Rectangle bounds)
{
InitializeComponent();
this.Bounds = Bounds;
}
private void timer1_Tick(object sender, EventArgs e)
{
Rectangle screen = Screen.PrimaryScreen.Bounds;
Point position = new Point(randGen.Next(0,screen.Width-this.Width)+screen.Left,randGen.Next(0,screen.Height-this.Height)+screen.Top);
this.Location = position;
}
private void MainScreensaver_Load(object sender, EventArgs e)
{
Cursor.Hide();
TopMost = true;
}
private Point mouseLocation;
private void MainScreensaver_MouseMove(object sender, MouseEventArgs e)
{
if (!mouseLocation.IsEmpty)
{
// Terminate if mouse is moved a significant distance
if (Math.Abs(mouseLocation.X - e.X) > 5 ||
Math.Abs(mouseLocation.Y - e.Y) > 5)
Application.Exit();
}
// Update current mouse location
mouseLocation = e.Location;
}
private void MainScreensaver_KeyPress(object sender, KeyPressEventArgs e)
{
Application.Exit();
}
private void MainScreensaver_Deactive(object sender, EventArgs e)
{
Application.Exit();
}
private void MainScreensaver_MouseClick(object sender, MouseEventArgs e)
{
Application.Exit();
}
Excerpt from MainScreensaver.Designer.cs InitialiseComponent()
this.MouseClick += new System.Windows.Forms.MouseEventHandler(this.MainScreensaver_MouseClick);
this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.MainScreensaver_MouseMove);

This isn't an answer to you question, but I'm leaving this answer in case anyone else stumbles upon this question while trying to debug this same issue (which is how I got here)
In my case, I had a class that was derived from Form.
I was also using TransparencyKey.
Some things I noticed
The events will not fire on the transparent parts of the form.
The events will not fire if the mouse cursor is over another control on the form.
The events will not fire if you override WndProc and set the result of a WM_NCHITTEST message. Windows doesn't even send out the corresponding mouse messages that would cause the .NET events.
My Solution
In my constructor, I had forgotten to call InitializeComponent().
Which was where the event handlers were being bound to my controls.
Events were not firing because the handlers were not being bound.

Are you sure that your form has focus? If your form does not have focus, the mouse events will not be fired.

How do I Manually Invoke/Raise Mouse Events in Silverlight 4?

In Silverlight 4, I wish to invoke one of the mouse button click events when the right mouse button is clicked. I have the RightMouseButtonDown click event wired up, but I don't know how to manually fire the MouseLeftButtonUp event.
I have tried raising the event in the following fashion.
private void MainLayoutRootMouseButton(object sender, MouseButtonEventArgs e)
{
MouseLeftButtonDown(sender, e);
}
However, a compiler error occurs:
"The event 'System.Windows.UIElement.MouseLeftButtonDown' can only appear on the left hand side of += or -=
What do I need to do to manually raise this event?

The other answers are correct in that they show you how to call those same code paths as you have for the other mouse events.
It should be clear that in Silverlight, you cannot raise (or automate) actual mouse button clicks, for security reasons.
Only user initiated actions such as the actual mouse moving can create real MouseEventArgs and fire the handlers directly, through the Silverlight input system.

You really shouldn't be raising the event itself. Instead, make the code inside the MouseLeftButtonUp its own function and then call that function from both the MouseLeftButtonUp and MouseRightButtonUp events.
e.g.
private void MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
DoTheSameThing(sender, e);
}
private void MouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
DoTheSameThing(sender, e);
}
private void DoTheSameThing(object sender, MouseButtonEventArgs e)
{
//Handle left or right mouse buttons up event
}

In your page's init function you need to have this line of code
someObjectOnPage.MouseLeftButtonDown += new MouseDownEventHandler(DoSomething);
someObjectOnPage.MouseRightButtonDown += new MouseDownEventHandler(DoSomething);
This is pure psuedo code but should lead you on the right track
also your method will need to look like this
void DoSomething(object sender, MouseButtonEventArgs e) { }