C#: how do I subtract two dates?

Question

Here\'s my code:

DateTime date1 = new DateTime(byear, bmonth, bday, 0, 0, 0);
DateTime datenow =  DateTime.Now;
DateTime date2 = datenow - date1

Answer 1

TimeSpan Example:

private void Form1_Load(object sender, EventArgs e)
    {
        DateTime startdatetime = new DateTime(2001, 1, 2, 14, 30, 0);
        DateTime enddatetime = DateTime.Now;
        TimeSpan difference = enddatetime.Subtract(startdatetime);


        string sdifference = "TotalDays:" + difference.TotalDays + Environment.NewLine;
        sdifference += "TotalHours:" + difference.TotalHours + Environment.NewLine;
        sdifference += "TotalMilliseconds:" + difference.TotalMilliseconds + Environment.NewLine;
        sdifference += "TotalMinutes:" + difference.TotalMinutes + Environment.NewLine;
        sdifference += "TotalSeconds:" + difference.TotalSeconds + Environment.NewLine;
        sdifference += "Ticks:" + difference.Ticks + Environment.NewLine;            
        sdifference += "Total:" + difference.Days + " days, " + difference.Hours + " hours, " + difference.Minutes + " minutes, " + difference.Seconds + " seconds and " + difference.Milliseconds + " milliseconds.";

        TextBox TextBox1 = new TextBox();
        TextBox1.Multiline = true;
        TextBox1.Dock = DockStyle.Fill;
        TextBox1.Text = sdifference;
        this.Controls.Add(TextBox1);

    }