This is an Appointments class that inherits from IAppointments. I'm trying to write to a text file called Appointments.txt so that I can store appointments within a text file. The issues I have are: The line " _AppList.Add(Line)
" kicks out an error "The best overloaded method match for' System.Collections.Generic.ICollection<Calendar.IAppointment>.Add(Calendar.IAppointment)
" meaning that I need to pass in an IAppointment rather than the string line, I'm unsure as to how I go about doing this. Secondly, I get an error on my foreach loop saying "Cannot convert type ' Calendar.IAppointment
' to ' string
'. All I want to do is read in each string so that I can create a new instance of an appointment and save that instance.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data;
using System.ComponentModel;
using System.Drawing;
using System.Collections;
using System.IO;
namespace Calendar
{
class Appointments : IAppointments
{
string line;
DateTime nStart;
int nLength;
string nSubject;
string nLocation;
DateTime nDate;
public Appointments()
{
}
IList<IAppointment> listApps = new List<IAppointment>();
IList<IAppointment> _AppList = new List<IAppointment>();
public bool Load()
{
using (var fileReader = new StreamReader(@"D:\All Documents\CalendarApplication_StartingSolution\Appointments.txt"))
{
line = fileReader.ReadLine();
if (line != null)
{
string s = line;
string[] split = s.Split('\t');
nDate = Convert.ToDateTime(split[0]);
nStart = Convert.ToDateTime(split[1]);
nLength = Convert.ToInt32(split[2]);
nSubject = split[3];
nLocation = split[4];
listApps.Add(new Appointment(nSubject, nLocation, nStart, nLength, nDate));
return true;
}
}
return false;
}
public bool Save()
{
string sStart;
string sLength;
string sDisplayableDescription;
StreamWriter fileWriter = new StreamWriter(@"D:\All Downloads\CalendarApplication_StartingSolution\Appointments.txt");
foreach (IAppointment a in listApps)
{
sStart = a.Start.ToString();
sLength = a.Length.ToString();
sDisplayableDescription = a.DisplayableDescription.ToString();
string words = sStart + "\t" + sLength + "\t" + sDisplayableDescription;
fileWriter.WriteLine(words);
}
fileWriter.Close();
StreamReader fileReader = new StreamReader(@"D:\All Documents\CalendarApplication_StartingSolution\Appointments.txt");
line = fileReader.ReadLine();
_AppList.Clear();
while (line != null)
{
_AppList.Add(line);
line = fileReader.ReadLine();
}
fileReader.Close();
IList<IAppointment> replicaList = new List<IAppointment>();
replicaList.Clear();
foreach (string word in _AppList)
{
string s = word;
string[] split = s.Split('\t');
nDate = Convert.ToDateTime(split[0]);
nStart = Convert.ToDateTime(split[1]);
nLength = Convert.ToInt32(split[2]);
nSubject = split[3];
nLocation = split[4];
replicaList.Add(new Appointment(nSubject, nLocation, nStart, nLength, nDate));
}
bool copy = false;
for (int i = 0; i < listApps.Count; i++)
{
if (listApps[i].Start != replicaList[i].Start && listApps[i].Length != replicaList[i].Length && listApps[i].DisplayableDescription != replicaList[i].DisplayableDescription);
{
copy = false;
break;
}
copy = true;
}
return copy;
}
public void Clear()
{
listApps.Clear();
}
IEnumerable<IAppointment> IAppointments.GetAppointmentsOnDate(DateTime date)
{
//_AppList.Clear(); wipes the _AppList before it is repopulated to avoid recurring appointments.
_AppList.Clear();
//Using a var within IEnumerable, allows the compiler to determine the type of variable.
//Eg "var i = 10;", the compiler determines that i is an integer.
foreach (var appointment in listApps)
{
if (appointment.Start.Date == date.Date)
{
_AppList.Add(appointment);
}
}
return _AppList;
}
public void Add(IAppointment item)
{
listApps.Add(item);
}
//Indexes the item selected in listApps
public int IndexOf(IAppointment item)
{
return listApps.IndexOf(item);
}
public void RemoveAt(int index)
{
listApps.RemoveAt(index);
}
public void Insert(int index, IAppointment item)
{
listApps.Insert(index, item);
}
public void CopyTo(IAppointment[] array, int arrayIndex)
{
listApps.CopyTo(array, arrayIndex);
}
public int Count
{
get
{
return listApps.Count;
}
}
public bool Contains(IAppointment item)
{
return listApps.Contains(item);
}
public bool IsReadOnly
{
get
{
return listApps.IsReadOnly;
}
}
public bool Remove(IAppointment item)
{
return listApps.Remove(item);
}
public IEnumerator<IAppointment> GetEnumerator()
{
return listApps.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
yield return GetEnumerator();
}
public IAppointment this[int index]
{
get
{
return listApps[index];
}
set
{
listApps[index] = value;
}
}
}
Generally you have already your solution in your code:
First Problem:
while (line != null) { _AppList.Add(line); line = fileReader.ReadLine(); }
This wont work because line
is a string and this method wont accept it. Therefor it should rather be:
while (line != null)
{
string s = line;
string[] split = s.Split('\t');
nDate = Convert.ToDateTime(split[0]);
nStart = Convert.ToDateTime(split[1]);
nLength = Convert.ToInt32(split[2]);
nSubject = split[3];
nLocation = split[4];
listApps.Add(new Appointment(nSubject, nLocation, nStart, nLength, nDate));
line = fileReader.ReadLine();
}
(but I'm not sure for this as I dont know how the file you want to read looks like)
Second Problem:
foreach (string word in _AppList) { string s = word; string[] split = s.Split('\\t'); nDate = Convert.ToDateTime(split[0]); nStart = Convert.ToDateTime(split[1]); nLength = Convert.ToInt32(split[2]); nSubject = split[3]; nLocation = split[4]; replicaList.Add(new Appointment(nSubject, nLocation, nStart, nLength, nDate)); }
could be simplfied into:
foreach(IAppointment date in _AppList)
{
replicaList.Add(date);
}
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