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Inserting multiple values between daterange into DB

i have a form which collects 2 dates (start date & end date) in the format mm/dd/yyyy
I want to collect these 2 dates from the form, and then create a list of all dates between these 2 days, then insert them into seperate rows in mt database. Here is my code:
if(IsPost){
var bookedFrom = Request.Form["dateFrom"];
var bookedTo = Request.Form["dateTo"];
DateTime dateF = Convert.ToDateTime(bookedFrom);
DateTime dateT = Convert.ToDateTime(bookedTo);
var dates = new List<DateTime>();
for (var dt = dateF; dt <= dateT; dt = dt.AddDays(1))
{
dates.Add(dt);
}
foreach(var dat in dates){
db.Execute("INSERT INTO Property_Availability (PropertyID, BookedDate, BookedNotes, BookedType) VALUES (#0, #1, #2, #3)", rPropertyId, dat, Request.Form["BookedNotes"], Request.Form["BookedType"]);
}
}
However, when i try and post my form, i get the following error:
String was not recognized as a valid DateTime.
DateTime dateF = Convert.ToDateTime(bookedFrom);
Any idea where i'm going wrong?
Thanks

Just my 2 cents in help you out, also consider using debug to know whether what values are passed / etc.
if(IsPost){
DateTime pFrom = new DateTime();
DateTime pTo = new DateTime();
var bookedFrom = Request.Form["dateFrom"];
var bookedTo = Request.Form["dateTo"];
if(DateTime.TryParse(bookedFrom, out pFrom) && DateTime.TryParse(bookedTo, out pTo))
{
DateTime dateF = pFrom;
DateTime dateT = pTo;
var dates = new List<DateTime>();
for (var dt = dateF; dt <= dateT; dt = dt.AddDays(1))
{
dates.Add(dt);
}
foreach(var dat in dates){
db.Execute("INSERT INTO Property_Availability (PropertyID, BookedDate, BookedNotes, BookedType) VALUES (#0, #1, #2, #3)", rPropertyId, dat, Request.Form["BookedNotes"], Request.Form["BookedType"]);
}
}
else
{
Response.Write("<script language=javascript>alert('Invalid date from : " + bookedFrom + " and date to : " + bookedTo + "');</script>");
}
}

Based on your exception, you have some problems with format of Request.Form["dateFrom"] value.
For example date in your default locale is supposed to be in format 'dd/mm/yyyy' or something like that.
So if you exactly know format of date in this parameter it's better to use something like that
DateTime dateF = DateTime.ParseExact(bookedFrom, "MM/dd/yyyy", CultureInfo.InvariantCulture);

The SQL statement I use don't show the correct results using C# [closed]

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Here is my code
public void onStart()
{
cmd = new OleDbCommand(#"SELECT COUNT(*) FROM _Annual_Rate", mydb);
int counter = (int)cmd.ExecuteScalar();
adapter = new OleDbDataAdapter(#"SELECT * FROM _Annual_Rate ", mydb);
dt.Clear(); // Data Table = dt
adapter.Fill(dt);
DateTime[] date = new DateTime[counter];
for (int i = 0; i < counter; i++)
{
date[i] = Convert.ToDateTime(dt.Rows[i]["Date_Of_Rate"]);
}
dateTimePicker1.MinDate = date.Min();
dateTimePicker2.MinDate = dateTimePicker1.Value;
dateTimePicker1.MaxDate = dateTimePicker2.Value;
dateTimePicker2.MaxDate = date.Max();
dateTimePicker1.Value = dateTimePicker1.MinDate;
dateTimePicker2.Value = dateTimePicker2.MaxDate;
}
private void dateTimePicker1_ValueChanged(object sender, EventArgs e)
{
if (dateTimePicker1.Value >= dateTimePicker2.Value)
{
dateTimePicker1.Value = dateTimePicker1.MinDate;
}
else
{
dateTimePicker2.MinDate = dateTimePicker1.Value;
DateTime minDate = dateTimePicker1.Value;
DateTime maxDate = dateTimePicker2.Value;
adapter = new OleDbDataAdapter("SELECT * FROM _Annual_Rate WHERE Date_Of_Rate BETWEEN #" + minDate + "# AND #" + maxDate + "#", mydb);
dt.Clear();
adapter.Fill(dt);
MessageBox.Show("minDate:" + minDate + "\nmaxDate:" + maxDate);
}
}
Here is the results
Here is my MS Access Database
I have coded dateTimePicker2 precisely the same as dateTimePicker1 with some minor changes to pass errors like if (dateTimePicker2.Value <= dateTimePicker1.Value). Data disappear and reappear as I move through the calender that should not show or be gone. I can move dateTimePicker2 to the date 12/30/30 and then some dates will be gone where they should show or I move the date on dateTimePicker2 to 12/30/98 then the dates above it shows up. I can't find my error hopefully you can. The same with dateTimePicker1

I would remove the BETWEEN and the string concatenation.
Instead I would use a parameterized query like this
DateTime minDate = dateTimePicker1.Value;
DateTime maxDate = dateTimePicker2.Value;
string cmdText = #"SELECT * FROM _Annual_Rate
WHERE Date_Of_Rate >= ? AND Date_Of_Rage <= ?";
adapter = new OleDbDataAdapter(cmdText, mydb);
adapter.SelectCommand.Parameters.Add("#d1", OleDbType.Date).Value = minDate;
adapter.SelectCommand.Parameters.Add("#d2", OleDbType.Date).Value = maxDate;
dt.Clear();
adapter.Fill(dt);
In this way the database engine will see the minDate and maxDate exactly as dates and not as some kind of string interpretation of a date value.
(There is also the added benefit to prevent Sql Injection albeit in MS-Access is more difficult to exploit)

Set WinForm Show Date from MySQL

C#/MySQL - Set WinForm Access Date MySQL
So I created a MySQL Database which my form is able to access & login to. My goal for it is to be able to pull information from the MySQL Database into the form as a label (I know easy right?).
Example:
The hardest problem for me was figuring out how to store lets say a "Subscription" start/end date and be able to tell me on a label, how many days I had left on my subscription. All this using information for the database.
(Yes this database is for test purposes only no where near final.)
Created a table called edata.
Created fields the program would use
(Account Status/StartSub/EndSub)
My Question: How would I go about taking the dates entered and creating a value that I could use to show in the "Days Left Here" label?

I will create the table like this:
CREATE TABLE `test`.`New Table` (
`ID` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
`FirstName` VARCHAR(45),
`LastName` VARCHAR(45),
`Username` VARCHAR(45),
`Password` VARCHAR(45),
`Account` INTEGER UNSIGNED,
`StartSub` DATETIME,
`EndSub` DATETIME,
PRIMARY KEY (`ID`)
)
ENGINE = InnoDB;
Then query like this:
using (MySqlConnection conn = new MySqlConnection(constring))
{
using (MySqlCommand cmd = new MySqlCommand())
{
cmd.Connection = conn;
conn.Open();
cmd.CommandText = "select * from edata where id = 1;";
MySqlDataAdapter da = new MySqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
conn.Close();
DateTime dateStart = Convert.ToDateTime(dt.Rows[0]["StartSub"]);
DateTime dateEnd = Convert.ToDateTime(dt.Rows[0]["EndSub"]);
if (DateTime.Now >= dateStart && DateTime.Now <= dateEnd)
{
TimeSpan ts = dateEnd - DateTime.Now;
label1.Text = "Active";
label2.Text = ts.TotalDays + " day(s) left";
}
else
{
label1.Text = "Expired";
label2.Text = "0 day left";
}
}
}

If you can parse the values out it is pretty simple, for example:
string end_date_string = "2014-09-24";
string start_date_string = "2014-09-18";
DateTime end_date = DateTime.Parse(end_date_string); // parse end date
DateTime start_date = DateTime.Parse(start_date_string); // parse start date
TimeSpan dur = end_date.Subtract(start_date); // total duration
TimeSpan timeleft = end_date.Subtract(DateTime.Now); // how much time left until we hit the end_date
Label l;
l.Text = timeleft.Days.ToString();
// l.Text = timeLeft.Hours.ToString();
// l.Text = timeleft.Minutes.ToString();

How to auto update startDate and EndDate for next execution?

I need some assistance regarding to how to auto update StartDate and EndDate for next execution. At this moment, I manually add the StartDate and EndDate in sql database and if I didn’t change the StartDate and EndDate, my report will be generating using same StartDate and EndDate. Appreciate if you all can give any idea or suggestion about that. Thanks.
static void Main(string[] args)
{
DateTime start = System.DateTime.Now.AddMinutes(1);
Schedule.PeriodicSchedules schedule =
new Schedule.PeriodicSchedules(start,
Schedule.PeriodicSchedules.Frequency.Minutely);
schedule.Elapsed += new System.Timers.ElapsedEventHandler(GenerateReport);
schedule.Enabled = true;
Console.ReadLine();
}
static void GenerateReport(object sender, EventArgs e)
{
if (TypeOfReport == "BillingReport")
{
DateOfExecution = DateTime.Parse(strDOE);
Schedule.PeriodicSchedules s =
new Schedule.PeriodicSchedules(DateOfExecution,
Schedule.PeriodicSchedules.Frequency.Weekly);
crRpt.Load(BillingReport);
ReportLogin(crRpt);
while (ThisReader.Read())
{
//StartDate and EndDate >>next execution?
crRpt.SetParameterValue("#CollectionStartDate", StartDate);
crRpt.SetParameterValue("#CollectionEndDate", EndDate);
crRpt.SetParameterValue("#SpokeCode", SpokeCode);
}
}
if (TypeOfReport == "ImageReport")
{
DateOfExecution = DateTime.Parse(strDOE);
Schedule.PeriodicSchedules s =
new Schedule.PeriodicSchedules(DateOfExecution,
Schedule.PeriodicSchedules.Frequency.Monthly);
crRpt.Load(ImageReport);
ReportLogin(crRpt);
crRpt.SetParameterValue("#CollectionStartDate", StartDate);
crRpt.SetParameterValue("#CollectionEndDate", EndDate);
crRpt.SetParameterValue("#SpokeCode", SpokeCode);
}
}

I manage to do it by call another method to auto update my DateOfExecution. Let me know if someone have another way. :)
static void GenerateReport(object sender, EventArgs e)
{
if (TypeOfReport == "BillingReport")
{
......
DateOfExecution = DateTime.Parse(strDOE);
Schedule.PeriodicSchedules s = new Schedule.PeriodicSchedules(DateOfExecution, Schedule.PeriodicSchedules.Frequency.Minutely);
//weekly
DateTime StartDate = DateOfExecution.AddDays(-7);
DateTime EndDate = DateOfExecution.AddDays(-1);
..........
UpdateWeekly(DateOfExecution, strReportType);
}
}
static void UpdateWeekly(DateTime DateOfExecution, String strReportType)
{
DateOfExecution = DateOfExecution.AddMinutes(2);
SqlConnection thisConnection = new SqlConnection(SQLConnection);
thisConnection.Open();
SqlCommand thisCommand = thisConnection.CreateCommand();
//thisCommand.CommandText = "INSERT INTO dbo.Schedules (DateOfExecution)" + "Values('"+DateOfExecution+"')";
thisCommand.CommandText = "UPDATE dbo.Schedule set DateOfExecution = '" + DateOfExecution + "' WHERE TypeOfReport = '" + strReportType + "'";
thisCommand.ExecuteNonQuery();
}

SQL SELECT query not retrieving rows from a simple Access database

The DayDate column in the database is of type DateTime & I'm passing a string formulated using a DateTimePicker in a form. The reader.HasRows always returns false!! I don't know what I'm doing wrong. Any help would be appreciated. The code that I used is below.
if (!this.con.IsConnected())
{
this.con.Connect();
}
this.cmd = new OleDbCommand("SELECT DayNo FROM [Calendar] WHERE DayDate = " + date + "", this.con.conObj());
this.reader = cmd.ExecuteReader();
this.reader.Read();
int dayNo;
if (this.reader.HasRows)
{
dayNo = int.Parse(reader[0].ToString());
}
else
{
throw new InfoException("The system could not locate the date in the system");
}

The problem is your comparing a Date value to a DateTime so in essence you could possibly be comparing values like this:
DayDate = "2011-12-18 14:22:54"
Date = "2011-12-18 00:00:00"
You need to truncate the time part from your DB dates, try something like this:
"SELECT DayNo FROM [Calendar] WHERE dateadd(dd, 0, datediff(dd, 0, DayDate)) = " + date
Or if using SQL Server 2008 you can do:
"SELECT DayNo FROM [Calendar] WHERE cast(DayDate As Date) = " + date