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calculation on textboxes that have date value?

honar abubakr

i have three textboxes named borrower_date_txt,period_txt and ret_date_txt ... know i want to make calculation on those textboxes ... i want to enter the date into the borrower_date_txt (not only today's date) and in the period_txt i enter a period for example (5) in the ret_date_txt i want to display the borrower_date_txt + 5 i.e give me the date after 5 days of 'borrower_date_txt' date value?

1 Reply

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Vulpes12y ago
Try this (Windows Forms assumed):

DateTime dt;
int period;
bool isValid;

isValid = DateTime.Parse(borrower_date_txt.Text, out dt);

if(!isValid)
{
MessageBox.Show("Invalid date. Please amend");
borrower_date_txt.Focus();
return;
}

isValid = int.Parse(period_txt.text, out period);

if(!isValid)
{
MessageBox.Show("Invalid period. Please amend");
period_txt.Focus();
return;
}

DateTime dt2 = dt.AddDays(period);
ret_date_txt.Text = dt2.ToShortDateString();