Click button if cursor hovers for 3 seconds

13y1.7kVisual Basic .NET

i have a code that when mouse hovers over a button then it immediately triggers a click event of a button..

but i want that if curosor hovers a button for 3 seconds then then it should perform click event.

I have tried a timer but i am unable to stop a timer so timer does not seems working in this case.

5 Replies

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Vulpes13y ago
You need to reset counter to zero whenever the timer is stopped.

So that will be:

1. In timer1_Tick when counter == 3; and

2. In button1_MouseLeave.
13y ago
Yes few problems removed by this bt still i have a problem that
1)when counter=3,button clicked,timer stopped
bt still counter increments (means timer1_tick_1 still called )why??
Vulpes13y ago
The reason why the timer is not stopping is that the 'timer1' referred to it in the timer1_Tick and button1_MouseLeave event handlers is not the same as the 'timer1' which is started in the button1_MouseHover event handler.

The former is a form level variable but the latter is a local variable.

If I were you, I'd create the timer just once at form level (if you've added it using the VS designer this will have been done automatically) and then just start it and stop it as required.

Notice that you need to allow for SystemInfomation.MouseHoverTime because the mouse will have been hovering over the button for this amount of time before the MouseHover event is fired.
13y ago
Everything is working fine except timer. Timer_tick is called automatically ,randomly. nd i have used timer.stop ,timer.enable=false; bt still unable to stop the timer

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication23
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();

//this.MouseHover += new System.EventHandler(this_MouseHover);
button1.MouseHover += new EventHandler(button1_MouseHover);
button1.MouseLeave += new EventHandler(button1_MouseLeave);

}

private void button1_Click(object sender, EventArgs e)
{
MessageBox.Show("message",counter.ToString());
}

private void button1_MouseHover(object sender, EventArgs e)
{
label1.Text = "Mouse hover";
//label1.Text = sender.GetType().ToString() + ": MouseHover";
counter =0;
//timer1.Interval = 1000 - SystemInformation.MouseHoverTime;
Timer timer1 = new Timer();
timer1.Tick += new EventHandler(timer1_Tick); // Everytime timer ticks, timer_Tick will be called
timer1.Interval = 1000;
timer1.Start();
}

private void timer1_Tick(object sender, EventArgs e)
{
counter++;
if (counter == 3)
{
timer1.Stop();
MessageBox.Show("counter", counter.ToString());
button1.PerformClick();
//counter = 0;
}
}

int counter;

private void button1_MouseLeave(object sender, EventArgs e)
{
timer1.Stop();
MessageBox.Show("leave",counter.ToString());
}

}
}
Vulpes13y ago
I'd have thought that something like this should work:

private void button1_Click(object sender, EventArgs e)
{
MessageBox.Show("Clicked!");
}

private void button1_MouseHover(object sender, EventArgs e)
{
timer1.Interval = 3000 - SystemInformation.MouseHoverTime;
timer1.Start();
}

private void timer1_Tick(object sender, EventArgs e)
{
timer1.Stop();
button1.PerformClick();
}

private void button1_MouseLeave(object sender, EventArgs e)
{
timer1.Stop();
}