I have a program that reads a file with Pacific Daylight Time, I want users to see the time and date in their local environment.
At present I have in Australia a time difference of 18 hours, so I have a list box with -24 to +24 and currently set at 18, my code is elementary as long as I have moved past day one of the month it suits me personally, but I want to distribute my app, so I need something better.
In some text boxes I enter times like "08:00 16:00" then another textbox next to it will display 8 hours then a label at the bottom calculates the total overall hours. There are a total of 7 textboxes for times entered and like the example above and another 7 for the calculation of that days hours worked. My problem is when I enter "08:00 16:30" the total hours in that text box would be displayed "8.5 hours". I need to tweak this so it is displayed 8 1/2 hours. My second issue is that the label that displays the overall hours only calculates if I enter times like "08:00 16:00" if i entered "08:00 16:30" it would not calculate
Here is my code:
vb
Private Sub txtMondatTimeKeeping_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtMondayTimeKeeping.TextChanged, _
txtTuesdaysTimeKeeping.TextChanged, txtWednesdaysTimeKeeping.TextChanged, txtThursdaysTimeKeeping.TextChanged, txtFridayTimeKeeping.TextChanged, _
txtSaturdaysTimeKeeping.TextChanged, txtSundaysTimeKeeping.TextChanged
CalculateHours()
[Code] .....
can anyby help me to add 4 hours to the following date time value [code]
View 4 RepliesI am trying to create what I am sure is a simple program to add hours to convert UTC time. I want to type in a UTC time and have it convert for every state in Australia. [Code] Now that works fine however when the conversion goes past "midnight" it then shows the date and time. I have tried about 50 different things but cannot get it to remove the date when the converted time passes midnight. [Code] The string was not recognized as a valid DateTime. There is an unknown word starting at index 18.
View 8 RepliesI have an ASP.NET application with a SQL Server back end. I am storing all my dates in UTC format and doing the appropriate conversions to the local time zone of the browser viewing it. One of the pages asks for a start date and end date (no times).
I am taking the start date and setting the time to 00:00:00 hours (midnight) and I'm taking the End time and adding a time of 23:59:59, so that the date range covers the whole day. Now what I'm trying to do is do a SQL query to do a search for records in this date range. The problem is, the data in SQL is in UTC time and the user is typing their dates and times in their local date and times. My quickest solution was to convert the date and time to UTC, then search the records. However, by doing this, I am to believe ASP.NET converts the given time and date to UTC based on the server time zone. How can I convert a date and time to UTC time based on the time zone of the user?
So I currently have the following:
2 timers
2 labels
1st label is "Clock" this pulls the time from the users current time zone/local time
2nd label is "UTCClock" Which would be UTC time
Now I have this for the first label: clock.Text = Format(TimeOfDay, "hh:mm:ss tt")
Which would give the users current time zone/local time. As for the UTC.. how would I add in for the UTC time from where the user is located at? I did some searches.. but couldnt find what I was looking for.. IM pretty sure its not as easy as getting the users current time zone/local time.. So im assuming that Theres a "bit more" code into getting UTC time..
Thought I'd see if Stack overflow is quicker than me testing something while I get a thousand interruptions from other work :)
I'm updating an old VB net application and trying to refactor some of the logic as I go. The app looks for data from a single date across a few tables and writes that view to a file.
Writing the query in SQL I'd get the equivalent of
SELECT * FROM table
WHERE CAST(FLOOR(CAST(table.date AS float))AS datetime) = '15-Jul-2010'
Ideally I'd use
SELECT * FROM table WHERE date=@input
and add a date object as a parameter to a System.Data.SqlClient.SqlCommand instance
Are those two comparable? Will I get the results I expect?
I am using VB 2008 and want to record a start date and time and then the stop date and time in a rich text box, i can get the start time into the box but so far can only stop the time instead of 2 seperate times, what i have is a drop down box with a list of computers 1-10 i was trying to get it so you picked a certain computer and that went into the text box then you started the timer and that was recorded, finally you stopped the timer and that was recorded but as i am a total newbie it does not work
Here is the code i have.
Public Class Form1
Dim time2 As Date
[CODE]...................
I used .NET Framework 1.1 in C/S project before. Now I have updated the project to use .NET Framework 3.5 without modifying source code, but I have found that : the Remoted DateTime values can not be converted to the equivalent local time of a remote computer that is in a different time zone. In .NET Framework 1.1, the DateTime values can be converted automatically.
[Code]...
I have got the following code for if in textbox1 the would be appear as 10:10:00 AM and in textbox2 the time will appear as in 4 hours time slots automatically as 06:10:01 AM ..if the textbox2 time will be 06:10:01 AM then MSg box will appear that "You can not registered to this site because the 4 hours time slot will be over " [code]Remember in textbox1 the time would be any .....and textbox2 will auto generate time according to textbox1 to maintain 4 hours time slots between textbox1 and textbox2
View 1 RepliesI'm using
Days = Dat2.Subtract(Dat1).Days
where
Dat2 = today
Dat1 = installed date
to trace the days of a program installed in user's computer.However, the user can changes the system time of his computer to a advancing date. How can I get a SNTP time from internet to solve this problem?
I am using this line of code on form load event it is working very fine but i have to problems
1. It replaces the form name and display the date and time but i want to keep both date and time and forms caption separated by some space.
2. When form loads it load the current date and time but the time does not change it should run.
What should i do please please help me code is as follows
Me.Text = Date.Now.ToLongDateString & " - " & TimeOfDay
How to get the current date and time in textbox in IST ( Indian Standard Time) in vb.net ?
View 1 Repliesi'm using a date time picker with format set to time. i want to be able to trigger an event at the time selected in the date time picker
View 19 Repliesi'm using a date time picker and want an event to trigger with just the time so it will trigger every day at a certain time. can anybody help
View 1 RepliesThe Now() function in VB.NET returns date and time which is different from the system time that I see on the right-bottom on the notification bar. It is 15 hours slower than the system time. Has anyone ever met this problem? I'm using .NET 2.0.
View 2 RepliesIm using vb.net and the database is mysql to write a time management system. how i store date and time to the database?
View 2 RepliesI want to know how to sum time like
Case 1
If I have MaskedTextBox included 11:00 am and I have onther MaskedTextBox included 1:30 pm. How I get result be 2:30 hours ????
Case 2
If I have ListBox Included 5:01 , 4:30 , 6:10 , 3:20
5:01
4:30
6:10
3:20
Sum Result
H 18: M 61
Convert To Hours
H 19 : M 01
How to Do this Operation with Code VBnet 2005?
I am doing my school on project on rs 232. it involoves VB. I have found out how to save text in .txt file in the code. But i have no idea when i save this particular text for instance with time and date oso..
For example my i can do this.I want to save " Hi i am VIJAY "
when i open the text file i can see " Hi i am VIJAY"
But what i want is When i open the text file i want to see " Hi i am VIJAY 10:35 24/01/2010 "
is there any help i can find ?
how do i use the time part in date time picker i am currently using vb.net2008 as my programming language?
View 14 RepliesI'm currently using this code to get the time span between the two hours.[code]
View 4 RepliesIn Microsoft Access I use: Hours(time) minute(time) function to get current time hour and minute. I then use loop to add to the minutes until it ends in a 5 or 0 to round it up to the next 5 minutes. e.g. 13:43 rounded up to 13:45 I use IF statement to make sure the minute does not exceed 60 to start the hour. I want to use that time to add hours or minutes to easier e.g. add 15minutes, add 1 hour ect.
[Code]...
How can use numericUpDown to set the Time (Hours : minutes : seconds).I want to use one numericUpDown.
View 1 RepliesI have a form. it has a textbox called textbox1. form has datagridview called datagridview1 on it which has datasource set to: tblEmployee. Which is connected from EmployeeData.mdf. This is an SQLServer connection.
I want to be able to type the text in search box(textbox1) and the datagrid shold adjust at the same time.
So if i am typing "Joh"... the datagrid should automatically change to narrow rows with Forename that has "John" in it.
I have noticed in a windows-based VB application I am working on when the "Automatically adjust clock for daylight saving changes" is de-selected, the time in the application is off by one hour. Is there anyway to make the application not sensitive to that and just display the date value that is retrieved from the database?
View 12 RepliesI want to be able to type text in a search box (textbox1) and have the datagrid adjust at the same time. My datagridview is called DGEstudent and the data source is dataset2 and is pulling from the student table. As soon as I start typing in the textbox my datagrid just goes blank. Private Sub TextBox1_KeyUp(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.KeyUp
Dim dv As DataView = New DataView()
dv.Table = DataSet2.Student
dv.RowFilter = "First_Name like '" & TextBox1.Text & "%'"
DGEstudent.DataSource = dv
Searching about kernel32.dll and battery functions in it, I came across some interesting
Public BatteryLifeTime As System.UInt32
The full declaration is:
Private Declare Auto Function GetSystemPowerStatus Lib "kernel32.dll" ( _
ByRef lpSystemPowerStatus As SYSTEM_POWER_STATUS) _
As Integer
Private Structure SYSTEM_POWER_STATUS
Public BatteryLifeTime As System.UInt32
What I don't understand is, what measurement do the "BatteryLifeTime As System.UInt32" is in? I mean, is the Battery life Time in seconds or hours.. Or something else, so how can I convert it to something I can use..
If i have textbox1 which display server date as 27-Nov-2010 Textbox2 will display time as 08:00:00 AM..i want if the departure of the plane is Date 27-Nov-2010 and Time 08:00:00 AM then if he/she wants to cancel ticket then it can cancel their ticket till Date 27-Nov-2010 and Time 04:00:00 AM.. Any Body can cancel their ticket before 4 hour of departure date/time..I want cancel plane ticket before 4 hours of departure time if dep time is 08:00:00 AM then Passengers can cancel ticket till 04:00:00 AM ??
View 1 RepliesI am writing a program and have run into an issue. The program requires a conversion of time (e.g. hours,minutes,seconds) to a hexadecimal value of no more than 4 bytes (e.g. FFFF). I have no idea how this is done. Can anyone point me to a tutorial or give a quick explanation. Sample code would be great as well.
View 2 RepliesI wish to display a greeting to the user when they start an application. It's very simple "Good Morning John" or "Good Afternoon John" or "Good Evening John" depending on the time of day. How do create a time variable where it's based on 24 and not 12?
View 3 Replies