Count No of hores

Question

Hello sir i want to calculate no oh houres like per day 4 houre and implement on calculattor like i will entre total no of houre is 44  and  i will chose date 01/01/2017 then calculate end date is 11/01/2014 on calender how can do that plz help me....

 

protected void txt_startDate_TextChanged(object sender, EventArgs e)

{

String dateInString = txtnohr.Text;

DateTime r, r1;

string s = "", s1 = "";

DateTime startDate = DateTime.Parse(txt_startDate.Text);

int totalnoofhr, oneday = 4;

totalnoofhr = Convert.ToInt32(dateInString);

int count = 0;

for (int j = 0; j <= totalnoofhr; j++)

{

if (totalnoofhr != 0)

{

if (count == j)

{

s = startDate.AddDays(j).ToShortDateString();

totalnoofhr = totalnoofhr - oneday;

count = count + 1;

}

}

}

s1 = s;

lbl_show.Text = s1;

r1 = Convert.ToDateTime(s1);

s1 = r1.AddDays(1).ToShortDateString();

String myString = s1; // get value from text field

r = Convert.ToDateTime(myString);

String myString_new = r.ToString("yyyy-MM-dd"); // add myString_new to oracle

lbl_show.Text = myString_new;

}