How To Do Date Subtraction

May 21, 2010

In my "Select" statement I have this:
Int((Date()-dob)/365.25) AS Age
I would like to do the same thing in VB .NET code. I plan to do something like:
editBoxAge.Text = .......
dob would be stored in datePickerDob.Text

View 5 Replies


ADVERTISEMENT

Extend Program So It Has Subtraction As Well?

Oct 15, 2009

Remember this from before?

Quote:

Since you are repeating same operation three times it is best to make a function for it.

CODE:

labels 1-6 are randomly generated numbers, text boxes 1-3 are the input boxes and the code above shows how if the answer in the textbox equals the labels added together, you win. This code works -

I have created labels 7-12 now, and textboxes 4-6. How can I extend this program so it has subtraction as well?

If this problem definition isn't detailed enough, let me know and I'll add more detail to this description.

View 13 Replies

Subtraction With 2 Strings Of Integers?

Jul 10, 2010

if i have 2 textboxes and i want to do subtraction with textbox1 and textbox2.

The value inside textbox1 is "5 12 30 8 2"
The value inside textbox2 is "7 9 14 8 3"

May i know what can i do so that the result will be "-2 3 16 0 -1"???

View 9 Replies

Boolean Subtraction Of Two Meshes With Direct3D

Jun 20, 2009

i'm working on a simple 3D CAD to create complex 3D objects. This application uses:

1. Direct3D to render the objects
2.The methods contained in the Mesh class (such as Mesh.Box(...)) to create them
3.The Matrix class to apply some basic transformations (such as Translation or Rotation)

My issue is to do a boolean subtraction of a Mesh to another one to create a more complex Mesh, for example a Mesh with holes.

View 3 Replies

Forms :: Cell Subtraction In DataGridView?

May 4, 2011

can I subtract a value from the value in the previous cell or cell above.I have created a stopwatch, and previous to using a datagridview, ive been using labels with this

If LapTimeLabel1.Text = "0:0.000" Then
LapTimeLabel1.Text = StopwatchLabel.Text
lapTime = DateTime.Now()

[code].....

View 9 Replies

VS 2005 Subtraction Operation In Database?

Oct 11, 2011

i am creating here coding which use to substract number in database from textbox. In my coding i use textbox which receive number from user and it will subtract a number in database. For your info i am using UPDATE sql command for this operation . In the same time i also create table name InItem and have column name Itemquantity After i click the button i got an error InvalidOperationException was unhandled from my coding Here is my coding and please correct my coding if it have missing part. I also highlight which code give this error. Oh ya , is that my sql command for subtraction is correct? i also not sure cause it get it from internet.If my command if false please show me with correct command..

[Code]...

View 6 Replies

Subtraction - Program That Sims A Cash Register ?

Feb 17, 2009

I am writing a program that sims a cash register. Everything works fine except VB will not compute subtraction. If I put a replace - with + everything works. What could be the cause of this?

Here is part of the

'Convert input into number
isConverted = Double.TryParse(owedTextBox.Text, NumberStyles.Currency, NumberFormatInfo.CurrentInfo, owed)

[CODE]...

***********If owed is 10 and paid is 5, it returns 0, but if I change the - to either a + or *, it returns the expected value

View 3 Replies

Unable To Do The Addition And Subtraction Side Of The Game?

Mar 27, 2012

i am currently making a maths game but i have run in to trouble trying to do the addition and subtraction side of the game. This is my current class file for my multiplication

Public Class Class2
Private Property question_gameplay_label As String
Private Property correctAnswer As Integer

[code]....

View 11 Replies

VS 2005 - Result After Calculation (Addition Or Subtraction) Zero

Oct 14, 2011

I got a problem with my calculation .The problem is after addition and subtraction calculation I only get result or answer 0, .There are not a correct answer. I try to change the datatype of the variable to decimal and double but answer is still 0.

Here is my coding.
Private Sub btnadditionprice_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnadditionprice.Click
Dim sum6, sum9 As Decimal
sum6 = Val(Me.ItemPriceTextBox.Text) + Val(Me.txtadditionprice.Text)
[Code] .....
Answer which got is 0.000

View 2 Replies

Calculator - 2 Textboxes Where The 2 Numbers (or Values Go For Addition And Subtraction)

Aug 12, 2011

I have made my calculator and it has 2 textboxes where the 2 numbers (or values go for addition and subtraction) are input and a label where the answer appears. There is other things on the page such as quit, clear etc thats all done but i have one query. I noticed while testing a problem occurs when only one number or value is put into a textbox and a command is hit. For example. one textbox (txtnumber1) has one number in it then i hit multiply and it says the error of course because its not programmed to deal with this (or divide by 0 of course) so i was wondering how i could make so when this happens a MsgBox appears saying a value must be in both boxes or when divded by zero is says something similar.

The line of code:

Private Sub blah blah blah...

If txtnumber1.Text = False Then MsgBox("Please Input Valid Value")

End Sub

I however have not been able to make it work.

View 3 Replies

Subtraction Operation In Database Using Visual Studio 2005?

Oct 11, 2011

i am creating here coding which use to substract number in database from textbox. In my coding i use textbox which receive number from user and it will subtract a number in database. For your info i am using UPDATE sql command for this operation . In the same time i also create table name InItem and have column name Itemquantity After i click the button i got an error InvalidOperationException was unhandled from my coding Here is my coding and correct my coding if it have missing part. I also highlight which code give this error. Oh ya , is that my sql command for subtraction is correct? i also not sure cause it get it from internet.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim ra As Integer

[Code]......

View 4 Replies

Create A Tiny Calculator Using The Basic Operators Of Addition - Subtraction - Multiplication

Oct 31, 2011

I need to create a tiny calculator using the basic operators of Addition, Subtraction, Multiplication, and Division. My professor hasn't really covered much of this, so I'm not to sure how to create it.

View 6 Replies

Show An Explanation And For The Addition And Subtraction - Show It On A Number Line

Mar 7, 2010

I'm writing a program for my algebra students to practice integers.Stuff like....

3-6
-4 + (-5)
3(-4)
-15 � 3
etc.

I want to show an explanation and for the addition and subtraction, I want to show it on a number line. For example, if the problem is 3 - 7, the number line should show and arrow to that goes right to 3, and then left 7 units (starting from 3). Then the student can see that the answer is -4.I could probably do this with some string manipulation, but what would be the easiest way to do it in a picture format? Maybe a bitmap.

View 1 Replies

Vb2008 - Randomizing - Addition Exercise Or A Subtraction Exercise ?

Jul 2, 2011

I have (label1.text), a combobox(items = + , -), (label2.text) = answer1.text

What I want to do is randomize if its an addition exercise or a subtraction exercise.

View 11 Replies

SQL Exception On Insert Of Dateandtimepicker.value.date Into Date Datatype: (Conversion Failed When Converting Date And/or Time From Character String)

Apr 8, 2010

Title pretty much says it all. How do I format the date of a dateandtimepicker to insert it into the SQL date datatype?

View 20 Replies

Get The Product Using "+"(addition) And Division Using "-"(subtraction)?

Oct 3, 2010

how to get the product using "+"(addition) and division using "-"(subtraction) and get it's remainder without using modulo division.

dim ctr as integer
for ctr=a to b
ctr=a+a
next ctr

View 2 Replies

Ensure That Conversion Of A Date To A String And A String To A Date Will Give The Same Date Format?

Jan 16, 2012

how I can ensure that conversion of a date to a string and a string to a date will give me the same date format.

For example:

Code:
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim d As Date = Date.Now

[code].....

I'm actually only interested in the date part as the label text shows so f is more than I want.But also, the day and month are reversed.

View 10 Replies

Compare Date - Start Date Should Not Be More Than End Date

Aug 12, 2011

i have 2 datetimepicker which are startdatedatetimepicker and enddatedatetimepicker.. the start date should not be more than end date..thus i need to check these two date.. here is my code...

[Code]...

View 1 Replies

Why Date Shows Up As Date Before Date Trying To Parse?

Sep 9, 2010

I have a date time as a string, eg. "2010-08-02", I'm trying to convert it to UTC with the following code snippet..DateTime.ParseExact("2010-08-02Z", "yyyy-MM-ddZ", CultureInfo.InvariantCulture)When I print to the console, I get the following: 8/1/2010 5:00:00 PM.Is there a reason why the date shows up as the date before the date I'm trying to parse? I could just add a day to this to advance to the original day.

View 3 Replies

Checking A Date Field - Existing Textbox That Is Automatically Filled With The Current Date?

Feb 21, 2011

I'm fairly new to ASP.NET & VB.I've been asked to take an existing textbox that is automatically filled with the current date and allow the user to either add a "+" or "-" and a number or a spcific number and convert that into a date.I underdstand the basic concept on how to do this, but I'm running into some problems using the proper commands in order for this to work.The Textbox is called txtDate.What I've tried to do is this:

If txtDate = '+' Or '-' Then
DateAdd("d", txtDate, today)
End If

Here is what the whole thing looks like:

Protected
Sub
DateEnter_Click(ByVal
sender As[code].....

View 1 Replies

Filter The Data In The Date Column To Show Only The Records That Don't Have A Date Entered Into The Field?

May 13, 2010

I have an access form that shows a data table. when the form is opened, I want to filter the data in the date column to show only the records that don't have a date entered into the field.

View 8 Replies

Function That Would Return True If Date Provided Was Payday / Date Of Next Few Weeks Paydays

Nov 21, 2011

I need a function that would return true if the date provided was a payday or date of next few weeks paydays.Paydays are every 14 days on a Friday (not twice a month).I tried several attempts, but don't have a clue where to start, except that the function needs a reference date to calculate from. [code]

View 16 Replies

Convert Excel Date To Sql Server Date Time Format Using ACE Provider?

Jun 24, 2011

I am attempting to import data in a batch from an Excel Worksheet to a Sql Server database. Everything works except for the one date field in the spreadsheet. The date returned is off by four years from the value in the spreadsheet. Example: The Excel sheet has a date 10/24/2010 14:18, but when I look at the column in my query, the date is 10/23/2006 2:18. This pattern, 4 years and 1 day earlier, is repeated for every row in the worksheet.

The Excel column comes to me as a custom type, formatted m/d/yyyy h:mm. I receive this from an outside vendor and having them change the column is not going to be my simplest solution.

For what it's worth, the relevent part of the query is:

Select [Date Created] From MyWorksheet

View 2 Replies

Data Type Is A Nullable Date That Returns A String Value If Date Was Supplied?

Mar 11, 2010

I am currently working on a custom data type, and wanted to implement a = operator.

I data type is a nullable date that returns a string value if date was supplied.

I want to allow the variable to be set like this

Dim nd as New NullableDate nd = Today Does anyone know how this can be done, or can anyone point me in the right direction?

View 9 Replies

Date Filter Query - Fetch Only The Date Within The Current And Return How Many Rows

Jul 19, 2011

I'm trying the fetch only the date within the current and return how many rows Dim dc as new dataclassesdatacontext dim q=from p in dc.worktime where p.name.equals(session("name") and p.date ).count what I should I put after "p.date" ? And if I want to search for the record which there are record that are insert five days earlier, how to do that ? use (datetime.now - 5) ?

View 3 Replies

Sql - Finding Start And End Dates From Date Numbers Table (Date Durations)?

Jun 19, 2009

I have two tables: a schedule table that contains information about how an employee is scheduled and a numbers table in which each number corresponds to a date.

[Code]...

I can do this on the SQL side or the code side. I have Linq at my disposal if I need it. The table doesn't need to be compiled by SQL. This will happen dynamically on a website and should be as efficient as possible.I don't want to have to iterate through each and look for breaks in contiguous days if I don't have to.

View 4 Replies

Write A Program Which Compares The Difference Between Any Date In The Past And The System Date?

Mar 6, 2009

I'm trying to write a program which compares the difference between any date in the past and the system date, showing how many days have elapsed since that date.This is what I've got so far:

Code:
Public Class Form1
Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub

[code]....

That's what it looks like so far. I was wondering how you can automate the top label so it automatically comes up with the date when the program is run.Plus, I need to know how to display the dates difference (how many days have elapsed between the system date and the user's chosen date) in the bottom label.

View 2 Replies

DB/Reporting :: Search A Table, Confining To A Specific Date Range Based On A Date-time Column?

Jul 14, 2009

Would it be possible to search a table, confining to a specific date range based on a date-time column, and get a count of the 10 most used words in a particular var-char column excluding a list of words?All in SQL?Currently I am pulling out the records that match and sorting through the contents outside of SQL, I would think where I can do it directly on the server it would be more efficient.(SQL 2008)

View 4 Replies

Auto-change Date Of DateTimePicker2 On Entering Date In DatetimePicker1

May 31, 2011

I have two DatetimePickers on form1.

DatetimePicker2 is not enable.I want to auto change date of DatetimePicker2 on selecting a day in DateTimePicker1 by 3 days.

Example if i select MAY ,1,2011. in DateTimePicker1 then DateTimePicker2 must show Date as MAY,4,2011.

View 2 Replies

Chane The BackColor Of Particular Date.Mine Code Is Only Just Bold The Particular Date

Mar 8, 2009

I want to chane the backColor of particular date.Mine code is only just bold the particular date,but not changing the BackColor. I have searched on internet,But none of them provide me the Solution. I Found the Below code thru net-

[Code]...

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved