How do I convert date in integer format to DateTime without using DateTime?
I have tried:
Regex regex = new Regex(@"^(0[1-9]|1[012])(0[0-9]|1[0-9]|2[0-9]|3[01])(1[789]|[2-9][0-9])dd+$");
if (regex.IsMatch(txt_fromdate.Text) == true)
{
DateTime dt = DateTime.ParseExact(txt_fromdate.Text, "MMddyyyy", null);
}
I would like to know how I can convert a string which represents a date to an integer.
#include <iostream>
using namespace std;
#include <string>
int main(){
string actual_date("18/10/2000");
int date = ????????
i have a form in which i have a field date of birth , and a textbox to fill date of birth , when a person fills his date of birth like 01/01/1990 , then it will be saved into database , and when i retrieve this date form database then this comes 01/01/1990 12:00 AM , i want only date part from it.
This is my form to fillup date of birth
form.aspx
<tr>
<td width="30%">
Date of Birth
<br />
</td> <td style="width: 1px">
:<asp:TextBox ID="txtDateofBirth" runat="server" placeholder="dd/mm/yyyy"></asp:TextBox>
</td> <td class="td2">
</td>
</tr>
this is code for form.aspx.cs
SqlCommand cmd = new SqlCommand("insert into ApplicantForm(NameofApplicant, dateofbirth)" +
"values( @NameofApplicant, convert(Datetime, @dateofBirth, 103)", con);
cmd.Parameters.AddWithValue("@dateofBirth",txtDateofBirth.Text);
this is code for print of this date of birth
print.aspx
<asp:Label ID="txtDOB" runat="server" ></asp:Label>
this is code print.aspx.cs
SqlCommand cmd = new SqlCommand("Select * from ApplicantForm Where ApplicantId=" + ((Request.QueryString["ApplicantId"])) + "", con);
dr = cmd.ExecuteReader();
txtDOB.Text = dr["dob"].ToString();
I am converting unix timestamp to datetime format like this:
static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
static readonly double MaxUnixSeconds = (DateTime.MaxValue - UnixEpoch).TotalSeconds;
public static DateTime UnixTimeStampToDateTime(double unixTimeStamp) {
return unixTimeStamp > MaxUnixSeconds
? UnixEpoch.AddMilliseconds(unixTimeStamp)
: UnixEpoch.AddSeconds(unixTimeStamp);
}
use it:
Console.WriteLine("From UNIX do datetime 1300123800440 : " + UnixTimeStampToDateTime(1300123800440));
output: 14.03.2011 5:30 PM
Now i would like to have function which convert it back to unix timestamp but unfortuently my new function is cutting down last 3 digits for instance:
public static long UnixTimestampFromDateTime(DateTime date) {
long unixTimestamp = date.Ticks - new DateTime(1970, 1, 1).Ticks;
unixTimestamp /= TimeSpan.TicksPerSecond;
return unixTimestamp;
}
after use of it i am retrieving:
Console.WriteLine(UnixTimestampFromDateTime(Convert.ToDateTime("14.03.2011 5:30 PM")));
result:
1300123800
So I have a programming assignment which is for getting a user input in the format of m/d/yyyy. This is stored as d/m/yyyy. I have been able to code all the rest of the requirements of the program but the thing that is giving me trouble is this. The year is allowed to go from 1-3000. The format of the displayed date is:
a zero-filled, two-digit day number, a dash, full name of month, a dash, zero-filled, four-digit year.
I am able to use a switch statement in order to get my name of the month. What I am struggling to figure out is the whole zero filled two digit day and zero filled four digit year. From the way the input is store it appears to me that it will be stored as yyyy which means if you were to enter 0001 for year 1 then it should output it as that (this is an assumption based on format). What I don't get is that the day is entered and stored as d which means if you put in 12 how would it be stored. However if you put in 6 to print the output I would need to add a zero and I dont know how to do that either.
Here is the code for getting the input. The function must stay formated this way as per the instructor. The / is stored but ignored hence the char for second and fourth since / is a char
Code:
void getDate (int& day, int& month, int& year){
char second;
char fourth;
cout << "Please enter a date in the format of m/d/yyyy" << endl;
cin >> month >> second >> day >>fourth >> year;
}
how my code should work is a console screen in which the user enters a date using format dd/mm/yyyy
Regardless of logical errors (checking days if bigger than 31 or negative values or.. etc) My code should be able to validate the following:
- if the user enters a letter, the program should output an error message
- if the user typed the date as 8/2/2014 the program should convert it to 08/02/2014 without returning an error message
Here's my code so far, I really can't find the bugs in it
#include<iostream>
using namespace std;
main(){
char d[2], m[2], y[4], br1, br2, dx, mx;
bool end, nobr1, nobr2;
[code]....
as you notice, I tried two different validating formats in the days and months, unfortunately they both failed..
Here's how my program is outputting so far:
I am getting this error whenever I leave my drop down lists blank: "String was not recognized as a valid DateTime". My code is below:
aspx:
asp:DropDownList ID="cboDay" runat="server" Width="55px" Height="32px" AppendDataBoundItems="true">
<asp:ListItem></asp:ListItem></asp:DropDownList >
<asp:DropDownList ID="cboMonth" runat="server" Width="80px" Height="30px" AppendDataBoundItems="true">
[Code]....
I retrieve a null value from a nullable sql datacolumn but when I pull it into a property it automatically gets the current datetime.
How will I go about making sure that this value returns a null and not the currentdatetime.
I want to create a program where you enter today's date, in the following format: 02/04/2013. As well as your birth date in the following format: 27/09/1994. After doing that I want to assign the day, month and year of the present date, as well as the day, month and year of the birth date in to their own variables (for example, Day, Month, Year), and then calculate your age.
I have tried doing this with cin.get(), but this method is way too long, and I'm looking for a shorter method
I have an application in C sharp that searches for a record in a sql database using a datetimepicker,the output is displayed in a datagridview.When I execute it I got a blank datagridview with empty columns.I can not view the content and I don't get any error message.
Here is my code:
DataTable dt=new dataTable();
SqlDataAdapter sda=new sqldataadapter("select * from Delivery where convert
(char(20),Delivery_Date,112)='"+ dateTimePicker1.value.Date,con);
//con is sqlconnection
Sda.Fill(dt);
Datagridview1.DataSource=dt;
I don't know how to ask the user to enter the date in this format (DD/MM/YY) and ISBN number with hyphens.
After user enter date and ISBN number, it should look like this:
Date: 5/24/12
ISBN: 0-000-12345-0
#include <iostream>
#include <string>
using namespace std;
int main() {
string date;//MM/DD/YY Format
[Code] ....
Is my understanding correct?
Ascii 'a' = 61 (Hex)
Ascii '0' = 30 (Hex)
So this is how we convert characters to hex.
Integer 0 = 0 (Hex), because it's not a character but an integer.
How do I Convert date as gmt to local from timezone.
I have date like 24-aug-2003 and timezone like CT .
a few pointers in building an assembler in C for a 68hc11 micro controller I'm struggling on a way to convert the assembly language in a txt file to s19 format.
View 1 Replies View RelatedI wanted to write a program to convert a number into a more readable format. It's like, if the input enters the number as 2361263 the output should be like 2,361,263. I went about this problem like extraction the number first and then if the count was equal to multiple of three i'd print ',' instead of the number.
But initially when i wrote the code for extracting a single digit from the number
Code:
#include<stdio.h>
void main() {
unsigned long long num=pow(2,50);
int count=0;
while(num!=0) {
int last_digit;
[Code]....
I know that I'd lose the number when i finish printing it, but still I only end up printing the entire number in reverse order.
As in if the input is 1234 the output is 4,321 which is not what i want.
One way of overcoming this problem is to store the values in an array and then reading then back from the end. But i wanted to know if there is a better solution than this? To extract the digits from the number in the same order as it is in the number
I have total time in seconds (say 2500 seconds). I want to store this time in CTime or CTimeSpan format.?
How to do this.?
How can i assign current date as integer ?
for example:
today's date 26 Sep 2014 on a computer
i try to make as below
int day=26
int moth=9
int year=2014
I also research i think i will use time.h library surely
In my project of hotel management.. for room issue date i have used date picker, it will automatically take present date.., for how many days a customer staying i kept a text box and enter no of days staying . My problem is how i got due date in another date time picker. When I enter the duration of days and that date must be shown. I need code for this in c#....
For ex..my issue date is 31-03-2012 no of days staying 3 my due date must be 3-04-2012.
How I can convert an ISO 8601 to a standard DateTime like dd/mm/yyyy.
The string is:
2013-01-03T00:00:00.0000000Z
And I'd want it to show it like so:
03-01-2013
I'm storing this in an SQLite Database and the code I use to store everything:
conn.Open();
command.Connection = conn;
command.CommandText = "insert into Test ([Date], [LogName], [Channel], [DateRecord], [SizeInBytes]) values"
+ "(@Date, @LogName, @Channel, @DateRecord, @SizeInBytes)";
command.Parameters.Add("@Date", DbType.String);
command.Parameters.Add("@LogName", DbType.String);
[Code] ....
the Visual aspect is that I use a datagridview to see the data, so the conversion would have to happen while I read and store the data in the database.
error is giving.
int ages = 0;
ages = int.Parse(textBox2.Text);
if(textBox2.Text == "")
{
MessageBox.Show("Age Blank ......");
}
else if (ages >= 5 || ages <= 9)
{
MessageBox.Show("age must be 5 to 9 only");
}
List<Byte> Pt_split(string plain) {
List<Byte> pb = new List<Byte>();
// Byte p;
string p;
int temp = 0;
if (plain.Length % 2 != 0)
[Code] ....
In formatting strings, how would I only get the decimals?
So, 1.456 would be .456(no digit before the decimal). I have seen a lot on removing the decimals or rounding to a certain place.
I want to display my data in rich-text box in the tree like structure,i fetch the data from the data base MSACCESS & i want to print it on my rich-textbox, what can i do ?
exampale is :-A
|
|__A1
| |_A1_1
| |_A1_2
|__A2
|__A3
|_A3_1
|_A3_2
like this in rich textbox
How to show only current date not time in webforms in visual studio as for date and time code is
Label1.Text = DateTime.Now.ToString();
What for only date not time
The first time my application opens up, it should get the local date out of the System and store this in a registry key. But the second time it should get the date stored in that registryKey and compare it to the date right now.And there is where I am stuck, I just don't know how to get the date out of that key and compare it to the date right now.
This is my code:
RegistryKey key1;
private void btnTrial_Click(object sender, EventArgs e) {
DateTime current = DateTime.Now;
key1 = Registry.CurrentUser.OpenSubKey("myKey");
if (key1 == null)
[code]....
at the last "if" statement it should compare the date stored in the key with the DateTime.Now.
how to display date reange in crysta report , i have table contains :
id score date name
1 30 2-10-2012 x
2 40 3-10-2013 y
3 40 3-7-2009 z
1 45 5-10-2013 x
1 50 4-10-2009 x
ouput report:
id:1 name :x
2009-10| 2012-2013
50 30
40