I am trying to make a time difference calculator using the Datetimepicker, (code as below)But I would if it is posible like to show it as the 24 clock system, anybody able to help or point me in the right direction?
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I didn't understand something about DateTimePicker control, on one of the site i found the Private Property Hour() as integer this property was used. And inside it was:
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how to show up datetimepicker value in which hour & minute only to display. e.g. (10:00 AM) There's no seconds to display.
View 14 RepliesI wrote a VB.NET Windows Service, which works fine. I have only one issue with it. I want the service to execute on the half hour and top of the hour marks (e.g. 9:00, 9:30, 10:00, 10:30, 11:00, etc etc etc). I am using the following code:
Protected Overrides Sub OnStart(ByVal args() As String)
' Add code here to start your service. This method should set things
' in motion so your service can do its work.
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This code works, however, if the service starts at, say, 10:15, then it executes at 10:15, 10:45, 11:15, 11:45. How do I make it so it always executes on the 30 minute and top of the hour marks?
So let's say I have 1400, I want to convert it into 2:00PM I tried the following:Dim convertedTime As String = DateTime.ParseExact(theTime,"HHmm", Nothing)
And it would give me this: 6/12/2012 02:00:00 PM
I do not want the date part, neither do I need the seconds. All I need is 2:00PM
I'm a totally newb to VB and I want to do this. I want to do display system clock into a textbox. The trick is that I want it to be synchronized with the Windows XP clock. I want to have something like +/- 100 ms accuracy.
Each 'second' change will trigger an output pin to ground into the parallel port. This is very important that the 'second' change in the same time the Windows XP second change. Do not care about the parallel output thing, I'm nearly there. My main concern is the synchronisation with Windows clock.
In my code, I've added a counter that increment +1 at each 'second' change. So, when the 'n' value will reach a determined value, it will trigger another event.
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I searched on the net and I found a thing about NIST time server.. Maybe this could be an otpion, but I have even no idea about how using it... I'm a total newb, but I'm ready to learn. So, please use simple language, no hard to understand acronym etc.
I need scheduler for my program that runs something every X day, hour or minute. And user can set that how long to wait until it run again.
View 11 RepliesI have created a clock in visual basics 2008, BUT it is 24 hour format (13:01:19). Here Is My Code:
Public Class Form1
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
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How can I change this to 12 hour (1:01:19 PM)?
im new to the forums and vb. I decided to make a alarm clock and the basic functions work great. But I want to add a button that allows you to set the time you want to snooze till. The button stops the alarm but doesnt set it off. Basically it just does what my stop alarm button does well heres the code. P.S. The last button (button 3) is the snooze button
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how to make a flip clock in vb 2008?
View 6 RepliesHow can I add Date, Clock (and eventualy Progress Bar that loads when ListBox2 and ListBox3 are loaded) to this StatusStrip.
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[code] Runs fine for 4 seconds. as you can see tried thread.sleep but did not help.just crashes itself then crashes my entire programs
View 5 RepliesI have created a simple app to display a digital clock, it can create child windows (dialog boxes) to do various chores, one of those chores involves a lengthy background task, so I create it in a modeless manner, so it doesn't block the main program. It all works well... kind of took me awhile to figure it all out, but there is one little cosmetic issue.
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Does anyone know what is the best way to check has datetimepicker been clicked and value selected before saving and updating database. I am working on a database app and database field for "Date" does not allow null so in order for app to work properly i would like before saving to check if the date is selected and if not to create warning for user. I have created that for "Name" and other columns, but those are text boxes so I had no problem with that. I could change the database field for "Date" to allow null, but that the easyer way and not what I really want. If someone has solution for problem
View 4 RepliesI am using visual basic 2008 and I am trying to create a form.
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I am having trouble with the datetimepicker. I use this and I tried as many as I could but didn't get a proper result, this one is the closest, so atleast while debugging I can see it having the right value:
datePContBDay.Value = dsn.Tables(0).Rows(0)("PContDOB")
But all it shows is todays date, don't know why?
I have a form with a DateTimePicker and want to convert the user selected date into ddmmyy and then display the result in a label on the form.
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How can I get the datetimepicker value to have a 2 digit day EX. If it was November 6, 2009 the value is showing as 11/6/2009 but I need it to be 11/06/2009
I have a search that searches by date and Im using the datetimepicker. the date format in from my sql database is in MM/DD/YYYY not MM/D/YYYY So my results come up ok if the day is a 2 digit day normally (ex. 11/20/2009)but if its a single date (11/6/2009) I don't get any results because it is looking for 11/06/2009 I don't see how I can get the value of datetimepicker to be MM/DD/YYYY Even if i set the custom format to MM/dd/yyyy the value is showing up as MM/d/yyyy
I am working VB.NET 08 Access Database. I have Two "DateTimePicker" controls one is "StartDate" and one is "Enddate". Now I am selecting Startdate like May 1st OK. Now when I select Enddate control this calender shows only Equal or Greater than dates should be Enable. EndDate should be Always Greater than Equal Date. That's why when ever user selects the Enddate Before May 1st dates should be disable..
View 2 RepliesWasn't really sure what to name this thread or how to explain it. I have a form with a dateTimePicker control on, textbox for days, button and label, when the button is pressed I'd like the amount of days put into the textbox to be added to the value in the datetimpicker then the result being put into the label.
E.g. Select 26th November in the DTP, then put 6 into the textbox, press the button then have 2nd December come out in the label. I've tried a few things but all fails and just gives me back the original value in the DTP.
We have this custom DateTimePicker in our project where you can alter the BackColor and so on. But normally, when you click on the month of a DateTimePicker, it gets highlighted and you can change it with for example the arrow buttons on your keyboard or by typing a different number. Now the problem is that in our DateTimePicker, the highlighting doesn't happen anymore. When you click on for example month, you'll be able to change month but you don't see wether you selected month or something else.
This is the code we have (it's old code from way before I even started working here):
Public Class ucBaseDateTimePicker
Inherits System.Windows.Forms.DateTimePicker
' true, when no date shall be displayed (empty DateTimePicker)
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In my detail form I would like to diaplay datetimepicker field as blank in case when user open new record. Is it possible to display blank datetimepicker? How it to do?
View 2 Repliestried in many ways and I know that very soon will succeed. at least I am very resourceful showing that ...... Please help me correct this code. because the DataGridView throws I query the data are in the range of dates
Option Explicit On
Option Strict On
Imports System.Data
Imports System.Data.SqlClient
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I am trying to show the date that stored in sql2008 in vb2010 by using datetimepicker.
Here is my code:
Private Sub Load_Project(ByVal cJobNo As String, ByVal nFlag As Integer)
Dim lnComboboxIndex As Integer
Dim lcSQL As String
'nFlag => 0-Edit 1-Copy Record
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how would i go about creating an ownerdrawn dtp, with highlighted dates in the dropdown + also in the collapsed view when a highlighted date is selected? i'm guessing i'd have to inherit a dtp + then handle an event or 2. does anyone have any insight or experience with this?
View 2 RepliesI was wondering if someone could help me. I have a database and i want to select all records between 2 dates.I use two datetimepickers and would like my datagrid to show only records between dates selected.
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I just been working with datetimepicker and I can't get it working if it is unchecked. When it is unchecked looks like it is not taking anything in. I can't load the value in it if it is unchecked which I need to have unchecked until the user ticks it by selecting the date.even if I am trying to trick it by doing this:
dtpCallback.Checked = True
If (Convert.IsDBNull(dsOrders.Tables(0).Rows(0)("callbackDate"))) Then
Else
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I would like to create ToolStripe on my DGV form with 2 DateTimePicker tools. And when user open form those tools will display by default date:
- first DateTimePicker will show date on 2 month early then current date;
- second DateTimePicker will show current date.
In ToolStrip of DGV form I have DateFromDateTimePicker and DateToDateTimePicker. I would lke to filter DVG by values of these DateTimePicker.
View 3 RepliesI need this for displaying in my crystal report here's my
cmd.CommandText = "Select * from pos where date= '" & datetimepicker1.text"'"
and nothing displays on my crystal report, I need the right quert for that...