bool SaveCheck()
{
divErrors.Visible = false;
divSuccess.Visible = false;
ulErrors.Controls.Clear();
DateTime temp;
if (rbtnCalendar.Checked && !(int.Parse(ddlAllocatedTo.SelectedValue) > 0))
ulErrors.Controls.Add(new LiteralControl("<li>Please select a <b>Calendar</b> from the list.</li>"));
if (txtTitle.Text == "")
ulErrors.Controls.Add(new LiteralControl("<li><b>Title</b> field cannot be left blank.</li>"));
if (txtStartDate.Text == "" || (!chbAllDay.Checked && txtStartTime.Text == "") || txtEndDate.Text == "" || (!chbAllDay.Checked && txtEndTime.Text == ""))
ulErrors.Controls.Add(new LiteralControl("<li><b>Date & Time</b> field cannot be left blank.</li>"));
else
{
bool bInvalid = false;
if (!DateTime.TryParse(txtStartDate.Text, out temp)) bInvalid = true;
if (!DateTime.TryParse(txtEndDate.Text, out temp)) bInvalid = true;
if (!chbAllDay.Checked && !DateTime.TryParse(txtStartTime.Text, out temp)) bInvalid = true;
if (!chbAllDay.Checked && !DateTime.TryParse(txtEndTime.Text, out temp)) bInvalid = true;
if (bInvalid)
ulErrors.Controls.Add(new LiteralControl("<li>Invalid value has entered in <b>Date & Time</b> filed.</li>"));
}
if (chbRepeat.Checked && chbRepeat.Enabled && txtRepeatEndDate.Text == "")
ulErrors.Controls.Add(new LiteralControl("<li><b>Ends On</b> field cannot be left blank.</li>"));
else if (chbRepeat.Checked && chbRepeat.Enabled && !DateTime.TryParse(txtRepeatEndDate.Text, out temp))
ulErrors.Controls.Add(new LiteralControl("<li>Invalid value in <b>Ends On</b> filed.</li>"));
//check repeat
if (chbRepeat.Checked && chbRepeat.Enabled && !(ulErrors.Controls.Count > 0))
{
RecurrencePattern rp = new RecurrencePattern();
rp.StartDate = txtStartDate.Text;
rp.EndsOn = txtRepeatEndDate.Text;
rp.Repeats = ddlRepeatFrequency.SelectedValue;
rp.Interval = int.Parse(ddlRepeatInterval.SelectedValue);
if (!new Events().IsValidAppointment(rp, Convert.ToDateTime(txtStartDate.Text), Convert.ToDateTime(txtEndDate.Text)))
{
ulErrors.Controls.Add(new LiteralControl("<li>The duration of the event must be shorter than how frequently it occurs. Shorten the duration or change the repeat pattern.</li>"));
}
}
if (ulErrors.Controls.Count > 0) return false;
return true;
}
/// <summary>
/// Check Is valid appointment or not for a recurring appointment by checking interval between first-second evnet and the days span of the event
/// </summary>
/// <param name="recPattern"></param>
/// <param name="startDate"></param>
/// <param name="endDate"></param>
/// <returns></returns>
public bool IsValidAppointment(RecurrencePattern recPattern, DateTime startDate, DateTime endDate)
{
var daySpan = (endDate - startDate).Days;
var secondEventStartDate = DateTime.Now;
switch (recPattern.Repeats)
{
case "days":
secondEventStartDate = startDate.AddDays(recPattern.Interval);
break;
case "weeks":
secondEventStartDate = startDate.AddDays(recPattern.Interval * 7);
break;
case "months":
secondEventStartDate = startDate.AddMonths(recPattern.Interval);
break;
case "years":
secondEventStartDate = startDate.AddYears(recPattern.Interval);
break;
}
//interval between second and first event
var secondAndFirstEventInterval = (secondEventStartDate - startDate).Days;
if (daySpan > secondAndFirstEventInterval)
return false;
return true;
}
