Question

I need the difference of two datetime down to the millisecond comparison the first datetime is going to be less than the second, its to stop a loop in the gridviews delete event

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    if (!Ok2Delete(e.RowIndex)) return;    

    // your logic goes here and the above IF statement 
    // will hopefully guarantee your code to run once.
}
private bool Ok2Delete(int ri) // ri is the record index to be deleted
{
    if (Session["ri"] == null ||
        (!((ri == ((int)Session["ri"])) &&
        (DateTime.Now.Subtract((DateTime)Session["ri_time_stamp"]).Seconds < 2))))
    {
        Session["ri"] = ri;
        Session["ri_time_stamp"] = DateTime.Now;
        return true;
    }
    return false;
}

this code isn’t working as expected

Answer 1

Use .TotalSeconds… otherwise a TimeSpan of 122 TotalSeconds will be 2 seconds.

private bool Ok2Delete(int ri) // ri is the record index to be deleted
{
    if (Session["ri"] == null ||
       (!((ri == ((int)Session["ri"])) &&
       (DateTime.Now.Subtract((DateTime)Session["ri_time_stamp"]).TotalSeconds < 2))))
    {
       Session["ri"] = ri;
       Session["ri_time_stamp"] = DateTime.Now;
       return true;
    }
    return false;
}