How to use YesNo Cancel message box.

1. I got my answer by myself.

2. You can use the below code and enjoy

private void Form1_Load(object sender, EventArgs e)

{

DialogResult result = MessageBox.Show("Are you sure you want to close?", "Close",MessageBoxButtons.YesNoCancel,

MessageBoxIcon.Information,

MessageBoxDefaultButton.Button3);

if (result.ToString() == "Yes")

{

MessageBox.Show("You answered Yes.");

}

else if (result.ToString() == "No")

{

MessageBox.Show("You answered No.");

}

if (result.ToString() == "Cancel")

{

MessageBox.Show("You answered Cancel.");

}