I am trying to get a program to recognize daylight savings in Sydney NSW Australia, but everything else in the program to stay on my current timezone settings Brisbane Qld Australia. All I ned it to do is to check a box (true or false).I have tried typing in dates and coding but I need it to think for itself, I don't want to have to change it every year.I'm using Visual Basic 2008?
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I need to write some code to tell the user when daylight savings starts and ends in another timezone, this is what I came up with but it keeps selecting the last Else line. The other lines are working fine, the problem is only with the lines, daylight savings today and not tomorrow. There is probably a much neater way of doing this but I thought this would work.
Private Sub Auto_Time_Change()
Dim sydneyTime As TimeZoneInfo = (TimeZoneInfo.FindSystemTimeZoneById("AUS Eastern Standard Time"))
If TSSlblTimeZone.Text = "Normal Time" Then
If CurDate.AddDays(1).Day = "1" Then
[Code] .....
Dim StartTime As Date = New Date(2009, 3, 8, 1, 59, 0, DateTimeKind.Local)
Dim EndTime As Date = New Date(2009, 3, 8, 3, 1, 0, DateTimeKind.Local)
Dim TimeDifference As TimeSpan = EndTime - StartTime
[code]....
I have a string "2011-06-30 09:55 EDT" that uses the US daylight savings format. Date.Parse cannot convert this because this is a non-standard format (EDT instead of EST). Is there a way to convert this string using Parse?
View 3 RepliesI have a simple app that just shows the current time for specific locations around the world. I need to have it adjust for daylight savings time. I *THOUGHT* I'd already coded this but....
I thought I would use "Today.IsDaylightSavingTime()" and add 1 hour to the clocks. It isn't working?
If Today.IsDaylightSavingTime() Then
HawaiiOffset = HawaiiOffset + 1
PacificOffset = PacificOffset + 1
[Code]....
I have a form that has clocks for Hawaii, Pacific, Mountain, Central, Easter, GMT/UT, UK, Germany, Mumbai, Manila and China.I assigned a timer to tick the seconds and wrote the following code for the tick:[code]
View 8 RepliesIs there a way in VB.Net to determine if the timezone the current system has daylight savings time in effect? Of course I can get the offset from GMT using the "z"/"zz" formatting option, but that doesn't tell me if DST is in effect for the current timezone or if the current timezone is in standard time...or if DST/Standard time aren't even an issue in the timezone for the system.
View 4 RepliesI wanted to create my own type that acts like the Boolean type, except I wanted to use Yes and No instead of True and False.I kind of got close but it wasnt exactly what i was going for here's what i have:
[code]...
so i have to use an integer when i dim it like:dim b as MyBool = 1 then when you look at it in the watch window b = {Yes} so i could settle for that, but with a boolean you can do this:dim b as Boolean without setting it to anything it defaults to False mine however, is Nothing. 2 things: 1. How can i get mine to default to No 2. How can i make it work like this: dim b as MyBool = Yes instead of having to use the integer this is not a requirement for anything I just wanted to know how to do it
The expression 3>6 AndAlso 7>4 evaluates to
A. True B. False
The expression 4>6 OrElse 10<2*6 evaluates to
A. True B. False
The expression 7>=3+4 OrElse 6<4 AndAlso 2<5 evaluates to
A. True B. False
I'm pretty new to Vb so I'm not sure of all the correct terminology etc.
Private Sub Add_mousedown(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Add.MouseDown
Dim Addition As Boolean
[code].....
I am writing the code in the class to create the strings. I want the value to returns as true if the strings in the class are matched with two numbers or more, but if the if the strings in the class are not matched with first two numbers or not then returns the value as false.[code]....
View 4 RepliesI have a group box set as false but when I click on radiobutton3 i want it to show at the bottom:
if radiobuttion3.checked the
radiobutton4.enabled = true
end if
but this doesn't show up my second group box when the program is running.
I have a Group Box Set as false but when i click one Button I want it to Show as True so i have [code] But is not Showing up when i run the program, is this the right code?
View 1 RepliesSimple question, I have an application and dependant on whether you are in the administration system or on the public website I want to show different results. Example: in the database for a news story in the administration I may set the column value 'showonsite' to false. So I would like this to show in the administration panel only and not on the live site.
My question is, because I require the same information just with the only one column change, live site to only show true values and administration to show both. What is the most effective way of achieving this without copy paste of code?
In C# and Vb.net,is any way without iterating by loop a bitarray to check contins any true or false value (Dotnet 2.0) ?
View 4 RepliesI'm trying to check if a bit retrieved from database is true or false but i have always the error IndexOutOfRangeException no matter how i get the value.
[Code]...
I am trying to get true false statements to work. Each statement has its own msgbox and if true adds 1 to x. At the end i use a case function which will give the final number of x and give it a value in a textbox. What is happening instead is, if I click "no" on every Yes/No question, I get a 4. If I click "yes" on every Yes/No, I still get a 4. For car 3, 4, and 6 I want a "no" to be true. For 1,2,5,7 I want yes to be true.
HTML Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClick.Click
Dim x As Integer
[Code]......
i am having problem with the intellisense. i have created a boolean variable and when i try to assign value why does is shows all the members instead of false and true. Again when i try to set the height the intellisense pops up again.
View 7 RepliesI am new to programming.I am making a coin tossing program for class.It is telling me I need to create a separate method that doesn't take any arguments and only returns false for tails and true heads.Not sure if a function or a sub returns only that type of data. Also once the code is returned I can then add that to a CONST to keep a running total.If the method only returns true or false do I need to put the code in buttonclick sub to post the image of the coin in the picturebox using a if then statement? Would I also need to add the code for the print out of the statistics after the if then statement? Not asking for code just a step in the right direction.
View 4 RepliesHere the code to load the records in data grid when form loads
01
Private Sub BindData()
I have tried and successfully ran the code in this thread.>>I have just been thinking about an extension method for a STRING so you couldtypesomeStringHere.IsInMicrosoftWordDictionaryand it would return TRUE or FALSEwith an overloaded version where you could optionally specify the language.Is it possibly to query the dictionary in MS Word in such a fashion? If so, how please?This may lead to me creating a word based game, it is not hangman but a word search game,ut with a twist on word search puzzles. I'm not going to give the idea away.This is what I have so far. The MODULE code for the extensions.>>
Option Strict On
Imports System.Runtime.CompilerServices
Module MyExtensions
[code].....
Can I validate a texbox to have only True or false? You should enter True or false in the textbox.
View 3 RepliesSub pageload() Handles Me.Load
Dim bom As New List(Of Car)
Dim car1 As New Car With {.Name = "Pea", .Year = 2}[cod
WHY??? I mean the object has the exactly same data, so why does itee]..... say it is not contained?
How come both intellisense and compiler accepts If 3 = True Then ... in VB.NET? Even with option strict on.Does it in actuality treat Booleans as Integers, or what's the deal?
View 4 RepliesI have a bit of code that goes like this. [code] The problem is the MyInclusion = "Aspire Inclusions Pack" and the TblPackages. Rows(n). Item("fldPromotion1") also = "Aspire Inclusions Pack" BUT the CheckTrueOrFalse is FALSE. I need it to return a TRUE value for CheckTrueOrFalse.
View 1 RepliesI call a function (SaveChanges) to access my business / data layer and save any changes to fields that are marked as an Add or Update and are marked to be processed. This function used to work fine up until 60+ minutes ago. What is happening is that suddenly the function is returning false. After debugging through the code, when it hits Return the local boolean is set as True but when it gets back to the calling method (and uses the return value) it is now False. As I said I went through line by line and debugged it, then I added a watch to it. The funny part is that there is one spot that sets the Boolean to false, and when I put a breakpoint on that spot it is never reached.
Here is the function:
Private Function SaveChanges() As Boolean
Dim blnSaved As Boolean = True
Dim saveableRows As List(Of DataRow) = (From d As DataRow In _listData.Tables(0).Rows _
Where Not d("Marking") = "Duplicate" _
And d("Process") = True _
[Code] ....
I have several text boxes that I will input answers into and I want them to catch the values if they are incorrect or correct.
Example: the user will input a Letter for the answer, A or a, and I was curious to how the correct input can detect if the answer is correct.If the answer is A B C or D then no message should display but when it's some other value this message will come up.How do I use true or false in this code?
Dim dbl1 As Double
dbl1 = CDbl(txt1.Text)
If dbl1 Not 'A OR a' Then
'Display message
MessageBox.Show("Enter A, B, C, or D")
While testing some code i found something strange how vb.net (2005) is handling integer representation of true and false (or yes and no). Or at least i dont understand the reason for this.Im used to C or Java where 0 is false and everything else is true. To get to the point, here is the code: [code] And the out put is:X: 1 Y: 2x is truey is truex and y is false.If x and y or both individually true, why does it return false when you evaluate x And y.However, change the values of x and y to 4 and 5 you get this:X: 4 Y: 5x is truey is truex and y is trueJust another example, which seems to work how it should to me:X: 4 Y: 0x is truey is falsex and y is false.
View 7 RepliesI'm not reciving any errors at all this is Still my homework on the Compound Intrest and it's due tommarow and well an if statement isn't working
Private Sub btnCalc_Click(ByVal sender As Object, _
ByVal e As EventArgs) Handles btnCalc.Click
Dim decAmount As Decimal = 0D
[Code].....
I have the following test code. It does nothing useful, but it's there for me to understand VB:
Imports System
Imports System.IO
Imports System.Diagnostics
[code].....
