one click calls both Click and LinkClicked event handlers

Question

LinkLabel label = new LinkLabel();
// imagine there is a code to initialize the label
label.Click += (sender, args) => callback1();
label.LinkClicked += (sender, args) => callback2();

If I click the label anywhere but not its link then callback1() is called which is correct.
If I click the label's link then both callback1() and callback2() are called.

How do I make it call callback2() only?

Answer 1

Two solutions I can think of. First one is a very silly one but looks pretty effective. You don't like Click when the mouse hovers over a link. Which has a side-effect, the mouse cursor changes. So you could filter by checking the cursor shape:

private void linkLabel1_Click(object sender, EventArgs e) {
    if (Cursor.Current == Cursors.Default) {
       Debug.WriteLine("Click!");
       // etc...
    }
}

A bit more principled and handy if you have a lot of link labels is to not raise the Click event at all if the mouse is over a link. Add a new class to your project and paste this code:

using System;
using System.Windows.Forms;

class LinkLabelEx : LinkLabel {
    protected override void OnClick(EventArgs e) {
        var loc = this.PointToClient(Cursor.Position);
        if (this.PointInLink(loc.X, loc.Y) == null) base.OnClick(e);
    }
}