如何将日期格式化为03-Feb-2011这种格式进行显示？
我尝试了以下语句，但它并没有正常工作：
string.Format(visitDate.Value.ToShortDateString(), "dd-MMM-yyyy")
4个回答
8
visitDate.Value.ToString("dd-MMM-yyyy");
假设 visitDate 是一个 DateTime 类型。
- bleeeah
1
我是指“假设visitDate是一个DateTime？（可为空）”。 - bleeeah
5
你需要使用：
visitDate.Value.ToString("dd-MMM-yyyy");
- onof
1
看起来 visitDate 是 DateTime？（可空的），所以他将不得不使用 visitDate == null ? "" : visitDate.Value.ToString("dd-MMM-yyyy") [假设您希望 visitDate 为空时为 ""] - Sean
1
string.format是有效的，但您使用的参数顺序无效：
DateTime? visitDate = null;
System.Diagnostics.Debug.WriteLine(visitDate == null ? "" : String.Format("{0:dd-MMM-yyyy}", visitDate));
visitDate = DateTime.Now;
System.Diagnostics.Debug.WriteLine(visitDate == null ? "" : String.Format("{0:dd-MMM-yyyy}", visitDate));
那应该就可以了。
- Nomadefv
-1
DataTier.ClsGlobal dataBaseObj = new DataTier.ClsGlobal();
string strmessage;
int intResult;
public string login(string username, string password)// login method
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlCmd = new SqlCommand("SELECT clEmail, clPassword FROM Client where clEmail='" + username + "'", dataBaseObj.sqlconn);
dataBaseObj.sqlDr = dataBaseObj.sqlCmd.ExecuteReader();
if (dataBaseObj.sqlDr.Read())
{
if (dataBaseObj.sqlDr["clPassword"].Equals(password.ToString()))
{
strmessage = "client";
dataBaseObj.sqlconn.Close();
}
else
{
intResult++;
strmessage = "login not succesfull";
dataBaseObj.sqlconn.Close();
if (intResult == 3)
{
strmessage = "your Blocked";
}
}
} // if its not the client is gonna go to workers table
else
{
dataBaseObj.sqlCmd = new SqlCommand("SELECT wuUsername, wuPassword, wuUserType FROM WorkUsers where wuUsername'" + username + "'", dataBaseObj.sqlconn);
dataBaseObj.sqlDr = dataBaseObj.sqlCmd.ExecuteReader();
if (dataBaseObj.sqlDr.Read())
{
if (dataBaseObj.sqlDr["wuPassword"].Equals(password.ToString()))
{
strmessage = "Receptionist";
dataBaseObj.sqlconn.Close();
}
else
{
intResult++;
strmessage = "login not succesful";
dataBaseObj.sqlconn.Close();
if (intResult == 3)
{
strmessage = "your Blocked";
}
}
}
}
return strmessage;
}
// this method is for registering the client of the client if not registered
public string registration(string clID, string clFirstName, string clSurname, string clStreetAddress, string clCity, string clPostCode, string clHomePhone, string clMobilePhone, string clEmail, string clPassword, string clStatus)
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlCmd = new SqlCommand("insert into Client values(@clID,@clFirstName@clSurname,@clStreetAddress,@clCity,@clPostCode,@clHomePhone,@clMobilePhone,@clEmail,@clPassword@clStatus)", dataBaseObj.sqlconn);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clID", clID);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clFirstName", clFirstName);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clSurname", clSurname);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clStreetAddress", clStreetAddress);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clCity", clCity);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clPostCode", clPostCode);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clHomePhone", clHomePhone);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clMobilePhone", clMobilePhone);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clEmail", clEmail);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clPassword", clPassword);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clStatus", clStatus);
intResult = dataBaseObj.sqlCmd.ExecuteNonQuery();
if (intResult == 1)
{
strmessage = "registeed";
}
else
{
strmessage = "not registeed";
}
return strmessage;
}
// this is for the admin to register the the receptionist
public string AdminRegister(string Id, string username, string password)
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlCmd = new SqlCommand("INSERT INTO WorkUsers (wuID, wuUsername, wuPassword) VALUES ('" + Id + "','" + username + "','" + password + "')", dataBaseObj.sqlconn);
intResult = intResult = dataBaseObj.sqlCmd.ExecuteNonQuery();
if (intResult == 1)
{
strmessage = "registeed";
}
else
{
strmessage = "not registeed";
}
return strmessage;
}
// this method is fo receptionist to inser an appoirment
public string ReceptioInsert(int appID, string appDateNow, string appTimeNow, string appReason, string appDateofBooking, string appTimeofBooking, int clID, int wuID)
{
dataBaseObj.sqlconn.Open();
// appDateNow = Convert.ToString(System.DateTime.Now.Year + "/" + System.DateTime.Now.Month + "/" + System.DateTime.Now.DayOfWeek);
appDateNow = Convert.ToString(System.DateTime.Now.ToString("m"));
//appTimeNow = Convert.ToString(System.DateTime.Now.TimeOfDay);
appTimeNow = Convert.ToString(System.DateTime.Now.ToString("hh:mm:ss"));
dataBaseObj.sqlCmd = new SqlCommand("SELECT appDateNow, appTimeNow FROM Appointments where appDateNow='" + appTimeNow + "'AND where appTimeNow='" + appTimeNow + "'", dataBaseObj.sqlconn);
if (dataBaseObj.sqlDr.Read())// if it reads it means date and time are booked
{
strmessage = "sorry that time is not available";
}
else
{
dataBaseObj.sqlCmd = new SqlCommand("INSERT INTO Appointments (appID, appDateNow, appTimeNow, appReason, appDateofBooking, appTimeofBooking, clID, wuID) VALUES('" + appID + "','" + appDateNow + "','" + appTimeNow + "','" + appReason + "','" + appDateofBooking + "','" + appTimeofBooking + "','" + clID + "','" + wuID + "')", dataBaseObj.sqlconn);
intResult = intResult = dataBaseObj.sqlCmd.ExecuteNonQuery();
if (intResult == 1)
{
strmessage = "registeed";
}
else
{
strmessage = "not registeed";
}
dataBaseObj.sqlconn.Close();
}
return strmessage;
}
// this method is to update the appointment
public void updateAppointmen(int appID, string appDateNow, string appTimeNow, string appReason, string appDateofBooking, string appTimeofBooking, int clID, int wuID)
{
dataBaseObj.sqlconn.Open();
appDateNow = Convert.ToString(System.DateTime.Now.Year + "/" + System.DateTime.Now.Month + "/" + System.DateTime.Now.DayOfWeek);
appTimeNow = Convert.ToString(System.DateTime.Now.TimeOfDay);
dataBaseObj.sqlCmd = new SqlCommand("UPDATE Appointments SET appDateNow =@appDateNow, appTimeNow =@appTimeNow, appReason =@appReason, appDateofBooking =@appDateofBooking, appTimeofBooking =@appTimeofBooking, clID =@clID, wuID =@wuID where appID='" + appID + "'", dataBaseObj.sqlconn);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appDateNow", appDateNow);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appTimeNow", appTimeNow);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appReason", appReason);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appDateofBooking", appDateofBooking);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appTimeofBooking", appTimeofBooking);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clID", clID);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@wuID", wuID);
dataBaseObj.sqlCmd.ExecuteNonQuery();
}
// this method is to delete the appointment
public void deleteAppointment(int appID)
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlCmd = new SqlCommand("DELETE FROM Appointments whre appID='" + appID + "'");
dataBaseObj.sqlCmd.ExecuteNonQuery();
}
// method for client to view the appointments
public DataTable CLientViewAppoitnmet(string date)
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlAdt = new SqlDataAdapter("SELECT appID, appDateNow, appTimeNow, appReason, appDateofBooking, appTimeofBooking, clID, wuID FROM Appointments where appDateNow='" + date + "'", dataBaseObj.sqlconn);
dataBaseObj.dt = new DataTable("appoitment");
dataBaseObj.sqlAdt.Fill(dataBaseObj.dt);
dataBaseObj.sqlconn.Close();
return dataBaseObj.dt;
}
// this method is for the client to insert a note
public string CLinetInformRecep(int anID, int appID, string anNotes)
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlCmd = new SqlCommand("INSERT INTO AppointmentNotes (anID, appID, anNotes) VALUES ('" + anID + "','" + appID + "','" + anNotes + "')", dataBaseObj.sqlconn);
intResult = intResult = dataBaseObj.sqlCmd.ExecuteNonQuery();
if (intResult == 1)
{
strmessage = "registeed";
}
else
{
strmessage = "not registeed";
}
dataBaseObj.sqlconn.Close();
return strmessage;
}
// this is for the receptionist to view notes added by the client
public DataTable selectAppointmentNotes()
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlAdt = new SqlDataAdapter("SELECT FROM AppointmentNotes", dataBaseObj.sqlconn);
dataBaseObj.dt = new DataTable("appoitment");
dataBaseObj.sqlAdt.Fill(dataBaseObj.dt);
dataBaseObj.sqlconn.Close();
return dataBaseObj.dt;
}
// this method is for therapist to view current day appointment
public DataTable TherapisViewAppoiments()
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlAdt = new SqlDataAdapter("SELECT appID, appDateNow, appTimeNow, appReason, appDateofBooking, appTimeofBooking, clID, wuID FROM Appointments where appDateNow ='" +System.DateTime.Now.DayOfWeek+"'", dataBaseObj.sqlconn);
dataBaseObj.dt = new DataTable("appoitment");
dataBaseObj.sqlAdt.Fill(dataBaseObj.dt);
dataBaseObj.sqlconn.Close();
return dataBaseObj.dt;
}
// this method here is for the therapist to view current day appointment with oppoetunit to filter them
public DataTable ViewAllAppoiements(int id, string date)
{
// this method return the information of appointment where the id and date match since I have user the operator AND
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlAdt = new SqlDataAdapter("SELECT appID, appDateNow, appTimeNow, appReason, appDateofBooking, appTimeofBooking, clID, wuID FROM Appointments where appID ='" + id + "'AND where appDateNow='" + date +"'", dataBaseObj.sqlconn);
dataBaseObj.dt = new DataTable("appoitment");
dataBaseObj.sqlAdt.Fill(dataBaseObj.dt);
dataBaseObj.sqlconn.Close();
return dataBaseObj.dt;
}
// this method is to update appoitment by therapist
public void UpdateAppoiment(int appID, string appDateNow, string appTimeNow, string appReason, string appDateofBooking, string appTimeofBooking, int clID, int wuID)
{
dataBaseObj.sqlconn.Open();
appDateNow = Convert.ToString(System.DateTime.Now.Year + "/" + System.DateTime.Now.Month + "/" + System.DateTime.Now.DayOfWeek);
appTimeNow = Convert.ToString(System.DateTime.Now.TimeOfDay);
dataBaseObj.sqlCmd = new SqlCommand("UPDATE Appointments SET appDateNow =@appDateNow, appTimeNow =@appTimeNow, appReason =@appReason, appDateofBooking =@appDateofBooking, appTimeofBooking =@appTimeofBooking, clID =@clID, wuID =@wuID where appID='" + appID + "'", dataBaseObj.sqlconn);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appDateNow", appDateNow);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appTimeNow", appTimeNow);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appReason", appReason);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appDateofBooking", appDateofBooking);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@appTimeofBooking", appTimeofBooking);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@clID", clID);
dataBaseObj.sqlCmd.Parameters.AddWithValue("@wuID", wuID);
dataBaseObj.sqlCmd.ExecuteNonQuery();
}
// this method is to delete the appoinmet
public string deleteAppoinment(int appID)
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlCmd = new SqlCommand("DELETE FROM Appointments whre appID='" + appID + "'");
dataBaseObj.sqlCmd.ExecuteNonQuery();
intResult = intResult = dataBaseObj.sqlCmd.ExecuteNonQuery();
if (intResult == 1)
{
strmessage = "registeed";
}
else
{
strmessage = "not registeed";
}
dataBaseObj.sqlconn.Close();
return strmessage;
}
// report order by date
public DataTable listOfCLient()
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlAdt = new SqlDataAdapter("SELECT clID, clFirstName, clSurname, clStreetAddress, clCity, clPostCode, clHomePhone, clMobilePhone, clEmail, clPassword, clStatus FROM Client", dataBaseObj.sqlconn);
dataBaseObj.dt = new DataTable("appoitment");
dataBaseObj.sqlAdt.Fill(dataBaseObj.dt);
dataBaseObj.sqlconn.Close();
return dataBaseObj.dt;
}
public DataTable listOfAppoint()
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlAdt = new SqlDataAdapter("SELECT appID, appDateNow, appTimeNow, appReason, appDateofBooking, appTimeofBooking, clID, wuID FROM Appointments ORDER BY appDateNow", dataBaseObj.sqlconn);
dataBaseObj.dt = new DataTable("appoitment");
dataBaseObj.sqlAdt.Fill(dataBaseObj.dt);
dataBaseObj.sqlconn.Close();
return dataBaseObj.dt;
}
public DataTable listAppontBytherapy()
{
dataBaseObj.sqlconn.Open();
dataBaseObj.sqlAdt = new SqlDataAdapter("SELECT Appointments.appID, Appointments.appDateNow, Appointments.appTimeNow, Appointments.appReason, Appointments.appDateofBooking,Appointments.appTimeofBooking, Appointments.clID, Appointments.wuID, WorkUsers.wuUserType FROM Appointments INNER JOIN WorkUsers ON Appointments.wuID = WorkUsers.wuID ORDER BY WorkUsers.wuUserType", dataBaseObj.sqlconn);
dataBaseObj.dt = new DataTable("appoitment");
dataBaseObj.sqlAdt.Fill(dataBaseObj.dt);
dataBaseObj.sqlconn.Close();
return dataBaseObj.dt;
}
}
}
- user3062716
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