Visual Basic 2010 - Calculating The Difference Between Times?
Oct 19, 2011
I am trying to calculate the difference between 2 times.
So far I have 4 labels.
Label1 = Current date and time.
Label2 = Contains the exact time that the application was last closed.
Label3 = Contains the exact time that the application was opened.
Label4 = I want this label to say how much time in seconds had elapsed between the application last being closed and the application being opened again, in other words the difference in seconds between label 2 and label 3.
Below is what I have done so far, but despite repeated efforts I can't seem to find a way of getting the time difference to show in label 4?
[Code]....
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Jul 31, 2010
I am looking to create an application that uses a remote mysql database, takes a picture from a live video stream, and also interfaces with an RS232 weighing scale. I'm just looking for a one or two sentence definition on what the huge differences are between VB Express and Standard.
I am a PHP developer and I have never worked with VB before (well maybe since high school 10 years ago). I am looking to either use vb or c++ to create this, but I have limited knowledge of any programming outside of web programming.
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Dec 9, 2009
I want my calculate button to automatically click multiple times upon the user clicking it once because it seems that it only works properly if it is clicked multiple times... I'm not sure if there is an error in my code.
Public Class frmford
Dim Make, Model, InitialPrice, Options, AirConditioningTax, GST, PST, Total, Subtotal, Finance, Months, RoofRack, SunRoof, SideAirBags, TintedGlass,
[Code]......
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Aug 5, 2011
Does anybody know which version of Visual Studio 2010 contains the full set of Visual Basic SharePoint Templates? I am about to embark on a project to create Visual Web Parts to be used in a SharePoint report.
At the moment I am using Visual Studio 2008 and even though the WSPBuilder is installed none of the relevant SharePoint templates are present.Having searched SO and the web, most advise to install the templates via the Visual Studio command prompt: devenv /installvstemplates
Alas the Visual Studio command prompt is also missing from my VS2008 installation.So, the question remains: which version of VS2010 contains what I need for pain-free SharePoint development? There is a rather large price different between VS2010 Professional and VS2010 Premium, so can anyone tell me if the cheaper version (VS2010 Professional) contains all the Sharepoint templates?
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Nov 25, 2009
I am just wondering how I can add Direct X references to Visual Basic in Visual Studio 2010 Beta 2. I cant find them in the .NET reference list, or the reference list, or anywhere. I downloaded the Direct X SDK for August 2009, but I can not add the .dll files to the reference list. Is there anything I can do to add them? I need the references for programming reasons.
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Jan 15, 2012
I want to use "OpenGL" in my project. Is it possible to associate it with "Visual Basic" application developed in Visual Studio 2010? If yes then how can we do it.
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Apr 20, 2012
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Mar 9, 2012
To reproduce the error I'm getting:Create a new Visual Studio 2010 ASP.NET web site in Visual Basic, targeting .NET 2.0Type "Public Property Test As String" Observe "Visual Basic 9.0 does not support auto-implemented properties." error Visual Studio 2010 is happy to use VB 10 against .NET 2.0-targeted Windows Forms applications, this only appears to be an issue with ASP.NET.Is there a way to force Visual Studio 2010 to use VB 10 when targeting .NET 2.0?
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Jul 6, 2010
have just overlooked something somewhere...I am writing VB.NET stuff in VS2010 on Windows 7 64-bit. It seems to build by default for a 32-bit target, how to I tell it to make a 64-bit executable?
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Dec 28, 2011
I have a dataset which includes some numbers, I want to calculate the sum of the difference in the numbers how do I do this? For example my dataset looks like this:
[Code]...
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Nov 12, 2010
I am trying to flag rows in a grid in the following order based on a date column
When 2 or more days old from today
then RED
When 1 day old then YELLOW
When 0 days old then GREEN
When the date is in the future then
BLUE
I have the following which is working fine except for the future dates which are GREEN instead of BLUE.
Dim myDate As DateTime = CType(grdSummaryView.GetRowCellValue(e.RowHandle, "myDate"), DateTime)
Select Case Now.Subtract(myDate).Days
'2 or more days old then RED FLAG
Case Is >= 2
[code]....
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Nov 6, 2011
Dont be afraid to spam the thread with things you can create.The more the better!
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Oct 2, 2010
When trying to import CrystalDecisions.CrystalReports.Engine, and CrystalDecisions.Shared. I'm getting a green line. What might be the problem?
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Mar 8, 2010
im currently working with a payroll system as a project i wonder how can i use
TimeDiff(,,,)
in crystal report(FOrmula Fields)what are the proper things to put on it?to find the difference of 2 time or any other way of finding the difference of times?
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Mar 16, 2010
I just downloaded the Visual Studio 2010 Express for Mobile Phone. C# is the only language available. Will Microsoft add Visual Basic as well? When?
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Jan 24, 2011
How do you extract source code from a VB.NET .EXE file?
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Feb 9, 2009
I want to calculate the difference between 2 different times. have the following code:
Code:
tNow = Now.TimeOfDay.Hours & ":" & Now.TimeOfDay.Minutes & ":" & Now.TimeOfDay.Seconds
tEnd = iNum1 & ":" & iNum2 & ":" & iNum3
tTimeRemaining = tEnd - tNow
This works all well until, the variables are the following:
Time Now: 7:36:34 PM
Time End: 12:46:00 AM
Because it passes over from PM to AM it gives me like 18 hours difference.Im lookiing for it to return me 5 hours
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Sep 16, 2011
I'm using Visual Studio 2010 and I'm working on a windows application form. I'm struggling with our database. I can connect and retrieve Data in the Grid View. But I dont want to display the records I want to put a specific on ina specific row column in a variable,in short I want to work with it.My DataSet is called ProductionDataSet. The Table is called Employee and has four column called Employee, First_Name, Last_Name and Status.How to I now store lets say the entry in colum 4 and row 5 in the variable x?
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Jun 27, 2011
druring my search how to display a picture from a webcan using vb I found in some treads the following code:
Const WM_CAP_START = &H400S
Const
WS_CHILD = &H40000000
[Code]...
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Jan 4, 2012
ok im making a program where i add exe files to my project like the trial install of photoshop and all the adobe projects. So wot i want to do now is add a code in so when i push the button install adobe photoshop fire works ect it will im useing this code here to do that
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
My.Computer.FileSystem.WriteAllBytes("YourExeFile.exe", My.Resources.Webcam,
[code].....
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May 1, 2010
i am use visual basic 2010i have API gateway with username and password from provider.buthow to use this? means how to send SMS from my visual basic application
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Apr 5, 2012
how to SQL Command and fill Result in ComboBox? in visual basic 2010 my DataBase
Dim SqlCon As New SqlClient.SqlConnection("Data Source=DIG-PCDIGSER;Initial Catalog=;Integrated Security=True") Dim ConDatBas As New SqlClient.SqlConnection("Data Source=DIG-PCDIGSER;Initial Catalog=DigSMSystem;Integrated Security=True")
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Jun 21, 2011
I checked all links in google,youtube,bing, msdn for source code on how to send "free "sms using visual basic 2010 (visual studio 2010). I want it to be completely device free means no mobile just an ordinary user a computer a modem . and visual studio 2010 for the programmer.
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how to send SMS with provider i am using visual basic 2010
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Jan 4, 2011
I am trying to create a tool to make terrains for my game and would like to develop it in Visual Basic Express 2010. I want to use OpenGL but am having trouble.1. Will VB support OpenGL 3.x or higher?
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Sep 19, 2011
What is a Boolean and what does it do in Visual Basic 2010?
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Dec 1, 2009
ok i will try to put this simple as i can. i am a doing computing coursework and as everyone can guess it is a pathetic programme i have to build. i need to work out the time difference between two times imputed by the user. i get high marks from making the programme user friendly so i want to use normal time (hh:mm). i am struggling to calculate the differences between the times.
i have tried to do it manually by working it out by sums and i have triedd to use date variables but vb 2008 just keeps saying i need to use timespan. i have never used system.timespan and have no idea how i am meant to use it.
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Dec 5, 2011
Possible Duplicate: Creating a Serial Port in code in VB.net
I wanna connect RS232 to vb in order to set an input for motor such as the steps and motion. I'm really new with VB. I'm using VB2010 express. Can you help me with the coding?
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Feb 10, 2012
Possible Duplicate: Creating a Serial Port in code in VB.netye. I wanna connect RS232 to vb in order to set an input for motor such as the steps and motion.
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