Why can't I do this?
For myDate As Date = startDate To endDate
Next
where startDate & endDate are Date types. It tells me 'For' loop control variable cannot be of type 'Date' because the type does not support the required operators. Is there another way to loop through dates?
I am trying to do a while loop with dates but I an getting an error:Here is my loop:
Dim SDate, EDate, iDate As
Date
Dim DateString
As
[code]....
Here is my error:
System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
I am trying to do a while loop with dates but I an getting an error:
Here is my loop:
Here is my error:System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
I try to make a loop in a table using dates i have this in a asp kode but can't make it work in vb
For i = CDate(strfradato) To CDate(str2tildato)Error1'For' loop control variable cannot be of type 'Date' because the type does not support the required operators.
I am trying to get my calendar to render with all the dates in my database, using ranges. Only problem is, I got it working fine, but it has shifted everything one day to the future.
Protected Sub CalDayRender(ByVal sender As Object, ByVal e As DayRenderEventArgs) Handles Calendar1.DayRender
Dim strConn As String = ConfigurationManager.ConnectionStrings("SiteDataConnString").ConnectionString
Dim strQuery As String = "SELECT [EDATESTART], [EDATEEND], [ENAME] FROM [EVENTS_FORM] WHERE [EACTIVE] = 'Yes'" '"SELECT * FROM [even
[code]....
I have two dates. [code] How to print all dates between these two dates in one listbox, for example: [code]
View 8 RepliesSay the user specifies these two dates....
Start Date: 2010-12-05
End Date: 2011-01-15
If I select December 2010 I should get the folllowing
startdate = 2010-12-05
enddate = 2010-12-31
Select January 2011 then
startdate = 2011-01-01
enddate = 2011-01-15
Should I subtract dates? How can I get the start and enddate for the current month/year based on the overall start and end date.I'm coding in vb.net.
I'm using two datetimepicker controls to set the start and end dates for a range of dates I'm searching for.I want to make sure that the start date selected is not greater than the end date. This code works, but it runs the messagebox prompt twice for some reason. I've tried to ignore it from doing this, but it's not working. Can someone tell me what's wrong?
Private Sub dtpStart_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dtpStart.ValueChanged
[Code]...
I have one more problem with MonthControl.And when I bold some dates the program doesn't show bold dates on month calendar.When I move on next or previous month and get back to currently month the program normal displays bold dates. What's the problem?
View 22 RepliesMakes the following statement about the code below:
**"The computer evaluates the loop condition in the Do...Loop statment to determine whether the loop instructions should be processed. In this case, the inputsales <> String.Empty condition compares the contenst of the input sales variable to the String.Empty value. As you know the String.Empty value represents a zero length, or empty, string if the inputsales variable is empty, the loop condition evaluates to True and the computer process the loop instructions. *If on the other hand the inputsales variable is not empty, the loop condition evaluates to false and the computer skips over the loop instructions.
Based on the code I think it is the opposite: ...that while the inputsales value is not empty it should evaluate to true and process the loop and if it is empty it should evaluate to false and skip the loop?
See below.
Option Explicit On
Option Strict On
Imports System.Globalization
[CODE]...
I know I am missing the obvious. I would like a label to show how many cycles in loop are left.
[Code]...
I am constructing a program, i am new to Visual Basic, but i have past programming experience. I was wondering if anyone knew how to form a loop that could...lets say calculate the answer when two numbers are added together,and it would repeat this thousands of times, etc. And if there is a way, would it be possible to calculate the time taken to complete this loop.
View 5 RepliesI have written a function that gets the alexa ranking of a given url, now this function works perfectly but I want to loop through a ListView of urls and grab the alexa rank of each item (url) with my function.The code works great if I put a MessageBox in the loop to test that the function is returning a value but when I remove the MessageBox the loop does not work.I need it to loop through adding each result without a MessageBox stop in each loop.
vb
For Each Item In ListView1.Items
Dim result As Integer
result = GetAlexaRank(Item.Text)
[code].....
So I made a simple patform game where the player has to jump quickly while the platforms move to the bottom of the screen, as to not touch the bottom of the screen. But, I need to know how to create a loop to loop the locations of the platform. This means that after twenty or so platforms, the same platforms come up again, so that the player will have an "endless" game. I've declared all the platform's locations relative to the location of the first repeating platform:
[Code]...
I assigned an integer as 1, and looped my program using:[code]I can recieve the packets without looping, but once i loop, i receive nothing.
View 29 RepliesI have this little application that runs a SQL query works great, now I want to have a Start Button run the and display results then System.Threading.Thread.Sleep(300 * 1000) for 5 min then run again and display results and loop till I buttonstop_click. unsure if the sleep is the best method.
[Code]...
I am new to VB programming. I have the following code. When I execute my program only the last value from the loop is displayed in the label. I do write my code so that all of the values (years 1 to 5) show up in the label?
[Code]...
Basically, I have a list of dates in a SQL table with some statistics next to each of them. I want to compare the dates in the table with a certain date I choose. However, my dates in my table are stored as Varchar(50) (and have to be). Apparently I can convert the date in the table into date type but I don't know. Does anyone know how? My current code can be seen below.
[Code]...
I have a order item form with a datagrid I want to add dates to different rows i.e. if the 1st row i order a cheese sandwich in that row I am able to insert a date in the correct cell. I want to be able to insert dates in the other rows with different order items. I have this code below and I want to do a loop back for it.
[Code]
We would like to compare a date from the db with current date. Here is what I have tried so far: 'Obtain current date Dim curdate As String = Now.ToString("yyyy") 'Now compare curdate with date from db called eventdate. Event date is of dateTime datatype. If drv("eventdate").ToString = "" And Year(drv("eventdate").ToString) = curdate Then
[Code]...
I'm having some trouble. I have an sql statement to update some rows to an Access DB I enter a date like 01/08/2009 (1st Aug 2009) and it saves to my DB as 08/01/2009 (08th Aug 2009 but still 01 Aug if it were mm/dd/yyyy format)
I've got:
Dim
dp As Date = Format(Me.tdate.Text, "dd/MM/yyyy")
Dim
strsql1 As String = "INSERT INTO TANKERS (REF, TDATE, TTOTAL) VALUES ('" & ref & "', #" & tp & "#, " & ttotal.Text & ")"
How do I just get the textbox that says 01/08/2009 to save as that and not 08/01/2009 in my DB.
My textbox6 represents the dateprinted of my asssessment form.. i code it like this :
TextBox6.Text = My.Computer.Clock.LocalTime.Date
then in the my SAVE Button coded like this :
Dim cn As OleDbConnection
[code].....
I am trying to find the difference between two dates. The first of the two dates can be changed and when it is changed, the difference between the original dates has to be retained. This means that I have to automatically change the second date to have the same difference in days as it did before, but with a new first date. [code]I have the value of the old date1(currDate) and the new date1 value(newDate). I need to get the difference between these, and then add or minus these days from the endDate.
View 1 Repliesi have two DatePickers on form and I want filter between two dates. So when i click search in lsitview display the dates between can anyone tell me how to deal with?
View 2 RepliesI have 2 textboxes, txtStartDate.Text and txtEndDate.Text, user choose date through calendar date picker. Now I want to count the days between the two selected date and save the result in the database field totalDay(type integer), the following is my code: But when I click button and try to save it into database, I receive this error:
The version of SQL Server in use does not support datatype 'time'.
Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports System.Threading
Imports System.Globalization
[Code] .....
how come when I retrieve my data from SQL my date field returns the date along with a time of 12:00:00 AM???? The Sql BD Type is Date and it is a date only in the SqlDB. I'm populating the date into a textbox.
View 2 RepliesI have a sqlce database table that I am entering data every day.
Date No Meter_1 Meter_2 Meter_3
12-05-2010 1 1234 3456 4567
12-05-2010 2 3423 4567 0987
[code]....
I have an SQL statement that I am trying to use to connect a vb.net program to an access database.I am using to date/time pickers to provide the dates. I have searched around and the various changes I have made to the statement have not returned any results.For what its worth this query works ok within access:
SELECT * FROM tblcallLog
WHERE startDate Between #" & dspstart.text & "# AND #" & dtpend.text & "#"
here is the entire click event, per @ajax81's request
enter code here
Private Sub btnDateUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDateUpdate.Click
grpT2DateRange.Visible = True
grpT2SingleStaff.Visible = True[code].....
Using VB.Net and SQL 2005
Table1
Name FromDate ToDate
Sched1 20091201 20091231
Sched2 20090515 20090613
...,
In table2 i want to add a time for a date between the FromDate and ToDate
Table2
Name Date StartTime EndTime
Sched1 20091201 080000 120000
...,
In my application am using "AddTime" Button. In the click event i want to write a code for adding the time for the dates.When I click ADDTime Button. It should check the max(date) in table2. Then it should show the next date of the max(date) in table2.For Example Select max(date) from table where name = 'Sched1'. It should show the next date means 20091202. because 20091201 Data is there. There is no data in table2 for Sched2, So It should show the StartDate 20090515 from table1.How to make a code or query for this condition?
I have a Date variable startdt and a String variable hdnsdate. Suppose if startdt has the value in the form 3/1/2012 and hdnsdate has the value in the form 03/01/2012. Than how can i compare that these two dates are equal in vb.net. In if condition of my program i want to do this check. In case the two dates match move out of if loop otherwise go into the if loop. E.g A sample in C# what exactly i want.
[Code]....