Handling a Click for All Controls on a Form

Handling a Click for all controls on a Form

If the labels are in a subcontrol then you'd have to do this recursively:

void initControlsRecursive(ControlCollection coll)
 { 
    foreach (Control c in coll)  
     {  
       c.MouseClick += (sender, e) => {/* handle the click here  */});  
       initControlsRecursive(c.Controls);
     }
 }

/* ... */
initControlsRecursive(Form.Controls);

Handling a Click for all controls on a Form & getting mouse location

The delegate for the event handler is defined like so:

public delegate void MouseEventHandler(object sender, MouseEventArgs e);

MouseEventArgs inherits from EventArgs, that's why your code is working. If you change the definition of your EventHandler, you should be able to access the coordinates:

public void myEvent_handler_click(object sender, MouseEventArgs e)
{
    Point point = new Point(e.X, e.Y);
}

You can also simply access e.Location to get point:

Point point = e.Location;

All Controls Click event on form

most likely your problem arises because your form is MDI child.. you'll have to click the menu bar to activate the form.. but if you have a borderless form, clicking on controls wont activate the form.. again, this usually happens on MDI but it shouldnt happen on a regular winform.. unless you have other running events in the background that interferes with the process.

One event handler for all controls on the form

MSDN says you can do with with setting KeyPreview to true.

User Control with multiple controls handle click

Add

_button.ButtonClick += Button_Click;

around the line

_button.Click += Button_Click;

Although you don't even need _button.ButtonClick. Simply do

private void RunCodeButton_Click(object sender, EventArgs e)
{
    Click?.Invoke(this, e);
}

How to handle Click event on a Control when a child control has been clicked?

Actually it's really simple to achieve this, you can iterate through all the controls contained in your UserControl and register the Item_Click to their EventHandler which will invoke it when the Click event is fired:

public partial class TestControl : UserControl {
    public TestControl( ) {
        //...

        for ( int i = 0; i < Controls.Count; i++ ) {
            Controls[ i ].Click += Item_Click;
        }
    }

    //...
}

How to fire form click event even when clicking on user controls in c#

    [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
    protected override void WndProc(ref Message m)
    {
        // 0x210 is WM_PARENTNOTIFY
        // 513 is WM_LBUTTONCLICK
        if (m.Msg == 0x210 && m.WParam.ToInt32() == 513)
        {
            // get the clicked position
            var x = (int)(m.LParam.ToInt32() & 0xFFFF);
            var y = (int)(m.LParam.ToInt32() >> 16);

            // get the clicked control
            var childControl = this.GetChildAtPoint(new Point(x, y));

            // call onClick (which fires Click event)
            OnClick(EventArgs.Empty);

            // do something else...
        }
        base.WndProc(ref m);
    }

How do I set a click event for a form?

In the form's ControlAdded event, add a MouseClick handler to the control, with the Address of the form's click event. I haven't tested this, but it might work.

Private Sub Example_ControlAdded(ByVal sender As Object, ByVal e As System.Windows.Forms.ControlEventArgs) Handles Me.ControlAdded

    AddHandler e.Control.MouseClick, AddressOf Example_MouseClick
End Sub

Private Sub Example_MouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseClick
    MessageBox.Show("Click")
End Sub

Click event for .Net (Windows Forms) user control

Sorry about this - just putting an answer on in case someone googles it...

In case you're interested, this post helped solve it: User Control Click - Windows Forms… Basically, remove HandleClick, and the property and substitute this one instead:

public new event EventHandler Click
{
    add
    {
        base.Click += value;
        foreach (Control control in Controls)
        {
            control.Click += value;
        }
    }
    remove
    {
        base.Click -= value;
        foreach (Control control in Controls)
        { 
            control.Click -= value;
        }
    }
}

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