Dividing The Time Slots?
Jan 15, 2012
I have 3 combo boxes on my form
1. Doctor Start Time
2. Doctor End Time
3. Doctor Appointment Duration
I want a 4th combo Box that will Start from Doctor's Start Time upto Doctor's End Time with the interval of Appointment Duration eg. Suppose the Start time is 08:00 and End Time 10:00 with 24 hr clock the appointment duration is 30 mins then the 4th comboBox should Display
08:00
08:30
09:00
09:30
I have done this coding on the basis of Appointment Duration
Dim da As DateTime = FormatDateTime("00:00")
cboAppTime.Items.Clear()
If txtDuration.Text = "15" Then
[code].....
The above coding shows time from 00:00 to 23:00
View 4 Replies
ADVERTISEMENT
Jun 3, 2011
I am doing a project for college where I have a booking system. The people book for a time slot and I would like to work out how to have a break down of time slots say for one hour periods throughout the day. Something similar to the bottom half of this picture [URL]. How would I go about something like this in VB.NET?
View 10 Replies
Nov 22, 2010
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 Replies
Mar 29, 2012
If the title isn't clear; I want to be able to select any character from textbox without making some complex loops-dependent code (I can do that one). For example, let's consider this text is entered in a textbox:
I want some syntax when I tell to get me the index 1's value, it gives me "h", for index 5 = "o"... etc
So, anyone knows what's the right syntax,
View 3 Replies
Jul 12, 2010
I want to divide a form into 2. Side a I want buttons. Side b I want a form to display certain info.
Example: Button on side a (Add Employee). If a user click this button, on side b is info about adding a new employee.
View 4 Replies
Aug 3, 2011
I have a fairly small double and a fairly large double. When I divide the large one by the small one and display it with Console.WriteLine, it always shows exponential notation. Can I display the non exponential notation form?
View 2 Replies
Nov 19, 2009
How easy it is to "split" a bitmap into separate parts?Here is a bitmap that was generated by a program - the red pixels that you see are purely red, there are no other colours.I want to know if the left side is "redder" than the right side. (Actually I want to be more precise than that (but I can figure that out on my own))So, I think that "splitting" the bitmap up into sections like this: would be the best way to do it then I can count the red pixels in each section.Here is the part of the code snippet that produced the bitmap you see above:I think I might be able to modify this easily to count pixels, if I know how to split the bitmap into section thingies.
Dim are_identical As Boolean = True
Dim eq_color As Color = Color.White
Dim ne_color As Color = Color.Red
For x As Integer = 0 To wid - 1
[code]....
View 5 Replies
Aug 17, 2009
i am controlling the hue and saturation of the backcolor of the form with scrollbars:
Private Sub tbHUE_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tbHue.Scroll
Dim r, g, b As Integer
HSVtoRGB(r, g, b, tbHue.Value, tbSaturation.Value / 50, 255)
[code]....
i would like to know what is the purpose of dividing by 50?
View 3 Replies
Feb 16, 2012
im trying to learn how to made stuff with currency.For example:I divide 10.000$ by 12 Months, rounding with 2 decimals i have 833,33 $.If i multiply 833,33 $ * 12 i got 9999,96 $, so there is 0.04 of possible loss.
Rounding the 9999.96 with 2 decimals of presition i got 10.000 $ but that's what i don't want since 0.04 is a loss.Im using SQL Compact 4.0 as database, the price_month table is decimal(18,2)
Here is my code:
Dim price as Decimal = 10000
Dim pricemonth as Decimal = Math.round((price/12),2) ' 833.33
Console.Writeline(pricemonth*12) ' 9999.96
Console.Writeline(Math.round((pricemonth*12),2)) ' 10000
View 1 Replies
Apr 4, 2012
I've came across to quite an unusual problem with dividing integers with double variable. I've created For loop where to sum-integer interval -double is added. When sum reaches certain number text is displayed as showed below:
[Code]...
View 10 Replies
Dec 1, 2011
I was wondering how I can make textbox1 get divided by textbox2 at the click of button1. The number will go into textbox 3. I was also wondering how I can make the number round up or down. I also want all three text boxes to only accept numbers.show me the code in an easy to read format.
View 2 Replies
Aug 10, 2011
I've read a lot of different questions on SO about multithreaded applications and how to split work up between them, but none really seem to fit what I need for this. Here's how my program currently basically works:
Module Module1
'string X declared out here
Sub Main()
[Code]....
This is only a rough outline of what actually happens in my code by the way.
My problem being that if multiple threads start running Main2(), they're dealing with the same X value as in the other threads. The loop inside of main2 executes multiple times per millisecond, so I can't just stagger the loops. There is often duplication of work done.
How can I properly divide up the work so that the two threads running simultaneously never have the same work to run?
View 3 Replies
Jan 11, 2011
I'm stuck on a simple problem maybe you can help!
Why does this work
vb Private Function calcArea() As Decimal
Dim height As Decimal
Dim width As Decimal
' assigns user input from the two text boxes to the two variables
Decimal.TryParse(heightTextBox.Text, height)
Decimal.TryParse(widthTextBox.Text, width)
[Code]...
All I did is change the multiply symbol to a divide symbol and now when I try to divide the two Decimal variables Visual Studio says, "Option strict on disallows conversions from 'Decimal' to 'Long'." Not sure where this conversion is happening.I know I'm missing something simple (once again) so if anyone has any advice please let me know.
View 3 Replies
May 12, 2011
I'm trying to make a program that uses Ohms circle to calculate varying data regarding electricity, I think that if you look at my code you'll get a good idea. The problem that I'm having is that I'm using On Error Resume Next so the program will automatically find the valid calculation to calculate the value for the variable, but what's happening is that when it divides by zero (the default value for variables with no value) it gets Infinity, which it has decided IS a value, but I don't want it to be, I need a runtime error so it will bypass that calculation and go on to the next one.
'Skip erroneous statements and continue on to next line of valid code
On Error Resume Next
'--------------------------
'VARIABLES
'--------------------------
'v = voltage
[Code] .....
View 9 Replies
Feb 22, 2010
I have a stopwatch in my program. I start the stopwatch with the start button I created. When I stop it it gives the results of the time in a label that I have named labelTime. I have a Calculate button I have created. I also have a label I have named calcResult. I want to click the Calculate button and divide the stopwatch result (labelTime) by 60. I want the results of this calculation to be displayed in the label calcResult. I keep getting errors saying labelTime is a string value. I believe I will need my calcResult to be a Decimal.
View 20 Replies
May 31, 2011
What is the proper way of working with percentages and DataGridView and dividing by zero..In my code I am attempting to divide two numbers, sometimes one of the numbers is zero..Then I need to add a column to my datagrid, I think i need it to be decimal? So i can sort it later. I had it as a string and everything worked fine excpet i couldnt sort properly.[code]If I change column to Double it handles it fine, then i am not sure how to read the value as a percentage?
View 12 Replies
Jul 30, 2009
I'm trying to do this division and the result to be displayed on a eight decimal number.
Dim r1 As Integer
Dim r2 As Double
r1 = Val(TextBox16.Text)
r2 = r1 / 60
TextBox18.Text = FormatNumber(r2, 8)
The value or R1 on this case is 273.4 but it varies according with the result obtained so I can not allocate a constant number to r1. The problem is the result that I am getting is 4,55000000 instead of 4.5566666
View 2 Replies
Sep 6, 2009
I 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?
View 5 Replies
Jun 22, 2010
The idea with this form is to add the futures which is calculated when the button is pushed but I need the list to update every time and show the values each time to which the previous value is added to the new calculation, e.g. of what it should look like in listbox:
Year 1: $1,290.93
Year 2: $2,724.32
Year 3: $4,350.76
etc....
I have been working on this a while and I am at a standstill, I was given a function to clear the form everytime it calculates but I don't know how to implement it, I am new to VB. Here is what I have so far:
Public Class frmFutureValue
Private Sub btnCalculate_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnCalculate.Click
[code]....
View 7 Replies
Nov 13, 2010
Basically i'm trying making a task manager program for myself. I want to know how I can display a message box and or play a sound when system time = time displayed in listview. I have used a dropdown box for the user to select which option they would like to select - sound or message box to popup. The data for the task will be stored in a listview box. I want it so that when the date and the time is = to the date and time set for the reminder the action will follow.Here is my code so far:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim notext As String = ""
If TextBox1.Text = notext Then[code]....
View 12 Replies
Jul 22, 2011
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..
View 5 Replies
Jan 24, 2012
I'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?
View 2 Replies
May 3, 2009
I need a start date, a Total time passed until now, an average time per step, and a estimated time to finished. How can I do that? Also, I can close the application and when start up again I want to get the time counters as the last time, so How can I store that data is normal txt file (I say txt to take advantage of the ini app file which is a txt).
View 1 Replies
Aug 24, 2010
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
View 11 Replies
Aug 24, 2011
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]...
View 2 Replies
Apr 19, 2012
There is a varchar column in the database table in this format of military time 1230 or 1750 or 1320 and that field get populated into a gridview in asp. I need to convert that string to standard time. I have tried the DateFormatString and nothing seems to work.
the asp is
<asp:BoundColumn DataField="ScanTime" SortExpression="ScanTime" ReadOnly="True"
HeaderText="Scan Time" DataFormatString="{0:hh}:{0:mm} {tt}">
<ItemStyle Width="80px"></ItemStyle>
</asp:BoundColumn>
that DateFormatString causes Input string was not in a correct format. error.
I have tried combinations of hh:mm and things like that but since its a varchar I think its failing
View 1 Replies
Dec 6, 2010
How to get the current date and time in textbox in IST ( Indian Standard Time) in vb.net ?
View 1 Replies
Jan 1, 2010
at the time of recoredset movenext out of memory error occured in run time data have 3800000 lakh recored
View 2 Replies
Dec 18, 2010
Is there a way of converting a unix time stamp to normal format time and date in .NET?
View 3 Replies
Jan 30, 2009
using VS2008, targetting framework 3.5I have a rather complex UserConrol which does some of its own rendering.I display this UserControl on a form.Opening that form in the Designer creates an instance of the UserControl in the Designer, which tells me a NullReferenceException is occurring in one of my rendering methods.I have attempted to correct this by making alterations to the UserControl's default constructor, but have not found success.
View 1 Replies
