//Retrieve()
public static List <Staff> Retrieve(List <Staff> L, string file)
{
Console.WriteLine("choose the index number\n1:PwId;\n2:StaffName;\n3:SeatNo;\n4:for firstname");
string f = Console.ReadLine();
Console.WriteLine("input the index data:");
string str = Console.ReadLine();
List <Staff> result = null;
switch (f)
{
case "1": result = (from s in L where s.GetPwId() == str select s).ToList <Staff>(); break;
case "2": result = (from s in L where s.GetStaffName() == str select s).ToList <Staff>(); break;
case "3": result = (from s in L where s.GetSeatNo() == str select s).ToList <Staff>(); break;
case "4": result = (from s in L where (s.GetStaffName().StartsWith(str)) select s).ToList <Staff>(); break;
default: CodeControl.PrintError(); break;
}
foreach (Staff s in result)
{
Console.WriteLine(s.ToString());
}
Console.WriteLine("there are(is) {0} records matched.", result.Count);
return(result);
}
static int Main(string[] args)
{
//List-Object
List <Staff> L = new List <Staff>();
Console.WriteLine("Welcome.");
ConsoleApplication1.CodeControl.PrintLine();
//DefaultFile
const string DefaultFile = @"D:\project";
string path = DefaultFile;
//DirInfo
FileSystem.DirInfo(DefaultFile);
while (true)
{
//Instruction()
Console.WriteLine("Input the instruction:\n1:go into a cataloge;\n2:go back the cataloge;\n3:open a file;\n*:exit");
string F = Console.ReadLine();
//switch
switch (F)
{
case "1": Console.WriteLine("please input the foldername:");
string folder = Console.ReadLine();
path = FileSystem.GoInto(path, folder);
break;
case "2": path = FileSystem.GoBack(path);
break;
case "3": Console.WriteLine("please input the filename:");
string file = Console.ReadLine();
file = DefaultFile + "\\" + file;
file = FileSystem.FileExists(file);
if (File.Exists(file))
{
L = FileSystem.GetData(file);
FileCRUD.CRUD(L, file);
}
else
{
CodeControl.PrintLine();
return(0);
}
break;
case "*": CodeControl.PrintLine();
return(0);
default: CodeControl.PrintError(); break;
}
}
Console.ReadKey();
return(0);
}
//Delete()
public static List <Staff> Delete(List <Staff> L, string file)
{
Console.WriteLine("input the instruction\n1:rows;\n2;Retrieve");
string f = Console.ReadLine();
string stringArray = "PwId,StaffName,SeatNo,RoomId,Department,CostCenter\n";
switch (f)
{
case "1":
Console.WriteLine("the begining row:");
int br = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("the ending row:");
int er = Convert.ToInt32(Console.ReadLine());
File.Delete(file);
File.AppendAllText(file, stringArray);
for (int i = 0; i < L.Count; i++)
{
if ((i >= 0 && i < br - 1) || (i > er - 1 && i <= L.Count - 1))
{
File.AppendAllText(file, L[i].ToString());
}
}
break;
case "2":
Console.WriteLine("Let's do the Retrieve first.");
List <Staff> result = Retrieve(L, file);
for (int i = 0; i < L.Count; i++)
{
for (int j = 0; j < result.Count; j++)
{
if (L[i] == result[j])
{
L.Remove(L[i]);
}
}
}
File.Delete(file);
File.AppendAllText(file, stringArray);
for (int k = 0; k < L.Count; k++)
{
File.AppendAllText(file, L[k].ToString());
}
CodeControl.PrintFinish();
break;
default: CodeControl.PrintError(); break;
}
return(L);
}
//FileExists()
public static string FileExists(string file)
{
while (!File.Exists(file))
{
Console.WriteLine("File do not exists. Try again.");
Console.WriteLine("input the instructon:\n1;continue;\n2:exit");
string f = Console.ReadLine();
switch (f)
{
case "1":
Console.WriteLine("File do not exists. Try again.");
file = Console.ReadLine();
file = @"D:\project" + "\\" + file;
break;
case "2": return(null);
default: CodeControl.PrintError(); break;
}
}
Console.WriteLine("File do exist.");
Console.WriteLine();
return(file);
}
//Update()
public static List <Staff> Update(List <Staff> L, string file)
{
Console.WriteLine("choose the index number you want to update\n1:PwId;\n2:StaffName;\n3:SeatNo");
string f = Console.ReadLine();
switch (f)
{
case "1":
Set(L, file, "1");
break;
case "2":
Set(L, file, "2");
break;
case "3":
Set(L, file, "3");
break;
default: CodeControl.PrintError(); break;
}
return(L);
}