A simple question : How to enable/disable a button at runtime

why not just have one button and toggle its title between start and stop. Inside the button's event handler get the button's text, if its start change it to stop and do the start function, otherwise if its stop change it to start and do the stop function.

Hi hkBattousai

Very easy to do that. Here is the code, it will do what you want it to:

private void btStart_Click(object sender, EventArgs e)
        {
            btStart.Enabled = false;
            btStop.Enabled = true;

        }

        private void btStop_Click(object sender, EventArgs e)
        {
            btStart.Enabled = true;
            btStop.Enabled = false;
        }

why not just have one button and toggle its title between start and stop. Inside the button's event handler get the button's text, if its start change it to stop and do the start function, otherwise if its stop change it to start and do the stop function.

Thank you for your reply.
Your solution indeed is a good alternative. But I want to learn how to disable and enable a control.

I am new at C#, I don't believe it would be so difficult to implement. Before C# I was using Win32. Enabling/Disabling controls was done with just one function, like this :

EnableWindow(hWnd, TRUE);
// or
EnableWindow(hWnd, FALSE);

Thank you for your reply.
Your solution indeed is a good alternative. But I want to learn how to disable and enable a control.

I am new at C#, I don't believe it would be so difficult to implement. Before C# I was using Win32. Enabling/Disabling controls was done with just one function, like this :

EnableWindow(hWnd, TRUE);
// or
EnableWindow(hWnd, FALSE);

If you check my post you will see the code to easily enable/disable the buttons based on which you click. ;)

Oh, sorry. I didn't scroll down the page then...
Thank you.

Actually I want to disable an InfoPath 2007 button when a user clicks a radio button on my infoPath form.

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 ex1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            stop.Visible = false;
        }

        private void start_Click(object sender, EventArgs e)
        {

            stop.Visible = true;
            start.Visible = false;
        }

        private void stop_Click(object sender, EventArgs e)
        {
            start.Visible = true;
            stop.Visible = false;
        }
    }
}

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 ex1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            stop.Visible = false;
        }

        private void start_Click(object sender, EventArgs e)
        {

            stop.Visible = true;
            start.Visible = false;
        }

        private void stop_Click(object sender, EventArgs e)
        {
            start.Visible = true;
            stop.Visible = false;
        }
    }
}