I parse time from string. The time in string is always GMT (you may say it equals UTC).Now I need to convert this time to local time, but there is a catch!For some reason the time parsed from string is being assumed as local time. I need to tell the bloody machine that this time is UTC/GMT, but not local.
Some examples:My string looks like that:
06 Apr 2012 16:27:00 GMT
I parse it like that (eventtime is my string - like above):
vb
Dim eventtimeobject As DateTime = DateTime.Parse(eventtime)
Dim eventtimefriendly As String
eventtimefriendly = String.Format("{0:dd MMM yyyy HH:mm}" + " GMT", eventtimeobject)
and now if I would like to convert it to local time nothing will happen as it is assumed that the above time is actually local.obviously if I tell it to convert the above time to UTC/GMT it will change it, as it does not know what this time is in GMT already.How do I do it? How to I tell the computer that it is dealing with GMT already?
I want to have an input from the user to define the font of a rich text box... the only problem is the only way I know how is to use a string... When I use a string it give the error of:
"An unhandled exception of type 'System.InvalidCastException' occurred in PWT Notepadd.exe
Additional information: Unable to cast object of type 'System.String' to type 'System.Drawing.Font'."
I'm programming in VB.NET using Visual Studio 2008. I need to define a string literal containing the character "÷" equivalent to Chr(247). I understand that internally VS uses UTF-16 encoding, but when the source file is written to disk it contains the single byte value F7 for this character.
This source file is processed by another program that uses UTF-8 encoding by default, so it fails to interpret this character correctly, attempting to combine it with the following single-byte character. What encoding would correctly interpret the single byte F7 as the single character ÷?
Alternatively, is there a way of expressing a non-ASCII literal that uses only ASCII characters - like using some kind of escape sequence?
I would like to develop a Windows Service in VB.NET to monitor different SQL databases running in different servers. The user will enter/define connection string for each database.Also he/she will define connection interval.
For example, database A needs to be checked in every 5 mins and database B needs to be checked every 24 hours.
could anybody point me in the right direction in regards to the following problem? I have some data that has time and date in form of ordinary string. The format is always the same, for instance:
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How can I convert it to time understood by computer and check if given time is in the past of in the future in comparsion to current time on my computer? I would also like to be able to tell how much difference there is between the time from my data file and the current time. For instance to say "this time was 3 hours and 20 mintues ago".
I have created a User Control (UC) where user type the information it needed and save it ti MS SQL Database and also have created a User Control dedicated for it's button, since my main form has split container and has two panels, one for UC which contain the button only and the other one for my Main UC where user enter the information.I created a Module that contain the function on adding the data type in UC Main to the database.
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on My UCButton named "Save" I just call the function AddUserInformation. But the problem is the variable where it bind to the ucUserControlMain textbox remains Blank, When i query the my database table, only the UserInforID and the DateAdded has been updated and the other column remains blank where the variable get it in the UCMain Textbox...
In the following code as you see I am defining myFile inside the timer sub; which of course is not a good idea. The FilePath is derived in form load before the timer kicks in. How can I declare myFile globally so it can be used in timer sub as well as in form load?
Private Sub tmrInterval_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrInterval.Tick Dim myFile As New IO.FileInfo(FilePath) If myFile.Exists Then ... ...
I want something like this:
Public Class Form1 private myFile As New IO.FileInfo()
'but I do not have strMessageFilePath value yet, that will be achieved in form load.
I know that here there is a similar question but I would like, if possible, to be able to define a relative path for 'Start External Program' or any workaround that do not constrain me to add a complete new empty project to my solution. I am using VB.NET in Visual Studio 2010 environment developing WinForms apps.
[code]I am reading a database that holds time information in a string format, hh:mm. For some reason I am remembering a built-in function I used a long time ago to accomplish, but for the life of me I cannot remember how to do it. [code]
I'm writing a report scheduler that is somewhat of a clone to the backupexec scheduler and the layout can be seen in post #10 here: [URL]..It works great and saves/edits/deletes records just fine, but now i need to compare those records one at a time in a windows service that i'm writing in order to trigger automated report creation and emailing - i already have the report and i already have the code for the emailing, i'm just looking for the most efficient way to loop through the table (that i've pulled in to a dataset) and compare its records with the current date and time - if true, the event fires.
[Code]...
1stSun, 2ndSun etc are bit fields, time is a datetime, and the remainder are varchar. My service checks the database every thirty seconds.The english version of what i'm trying to do is "Connect to the database, grab the entire table (it will always only have 5-6 entries max, so i felt 30 second sweeps was okay), and If today is the 1st Sunday of the month, and it is currently 11:00:00 a.m. (could be any day or time, this is just an example) - loop through the dataset to identify if any records match the time field or greater - if they do, fire the report
I have written a program that uses an array of the english alphabet and Morse code. I also built a form with a input box for the alphabetic information and an output box with the Morse Code. What i am trying to do is basically type a word like "Hi" in the input box and produce the Morse Code equivalent in the Morse Code output box. [Code] This works but only one letter at a time. Do i need to Parse the string of characters one at a time, and then run it through a loop like i have created?
1. I've registered my VB 2010 Express, will it still expire?
2. Will the applications I made using VB 2010 Express expire after some time?
3. Is it OK to write my code in the designer.vb file? I don't know why, but when I started writing my application it took me to the designer.vb instead of form1.vb code.
4. I've been working on an application for a week now, but suddenly I can no longer access my Design View(Shift-F7). All my codes are written on the [form name].Designer.vb. I can still view my codes but I cant access my form layout. On the solution explorer, my forms no longer have the 'form icon'. When i press Shift-F7 nothing happens. Right-clicking the form on the solution explorer doesn't show 'View Designer' option. How can I fix this?
I have a string coming over that reads as "15:40:20" (without quotes). I would like to read this in as time so that I can add a minute to it and then put if + or - a minute from the original time then do this. Any idea how to read the above string in as time so that I can do so... ???
I am trying to convert a string in the format "20110617111051" to date time. Currently I am using String.SubString() function to extract year, month, day, time to format a standard string and then using Convert.ToDateTime(string). Is there any other simple way to do this?
i have a project that using vb2008 to do a room reservation .here is my problems...i am using datetimepicker to get the date only.for time,i using 2 combo box. first combo box i put o 1-12 inside and Am/pM for another combo boxand i make the date that is get by the combobox as1) a table called bookings,inside bookings there are fields called userid,bookingid,startime,endtime,startdate,enddate)for (startime,endtime,startdate,enddate)field i`m using textSo now,i want to make a search on the (startime,endtime,startdate,enddate) field,from the datetimepicker,and that i enter to gain the empty room that available to book?
I have a form which accepts the time ( start time and end time)in a text box. What i want to do is to convert it into time and get the difference of it. I googled it and found lot of question regarding converting to date and time. but i only need "time" and dont want date.
PROJECT TYPE: Windows Forms Application LANGUAGE: Visual Basic .NET VERSION: 3.5
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I am attempting to display time in a label on my MainForm. The label should display a stopwatch control's elapsed time in hh:mm:ss format. My code is displaying "00:00:00". I have defined the hh, mm and ss as variables but I can't seem to figure out how to use them effectively.
vb Public Sub RefreshTimeElapsed() ' Refreshes time elapsed display. Dim hh As String = Me.MyStopWatch.Elapsed.TotalHours.ToString
I have recently started programming in vb.net (or trying to) I have made a application that gets some info from a mssql server. I can get the information perfectly, but one of the items called "date" i get in to my program is a date field in UNIX time. Is there a easy way to convert that into GMT time?[ code]
I have a string variable that contains "19:39:43", I would like to convert that to a date object. When I try I get a formatexception was unhandled error during debugging. I want to convert it to format of hours:minutes:seconds but cannot see how this can be done..
Code snippet: Dim strtxt As String = "19:39:43" Dim Datevar As Date = Date.ParseExact(strtxt, "HH:mm:ss tt", Globalization.CultureInfo.CurrentCulture) I tried just "HH:mm:ss" but not sure if that worked...
it must observe DST, parse the input with format string and allow output to be formatted with a formatting string the city names are not important and can be replaced with f.ex. timezone codes
I'm trying to code a program but this error repeatedly shows up and I can't for the life of me figure it out EValue of type 'String' cannot be converted to 'System.Windows.Forms.TextBox'. It appears in relation to this code
and advise how I can change this connection string at run time. This is going to be on Client's computer and my application will need to change the name of computer after user enters it.
