User Order By In .net With Datatype Date
Jun 6, 2012
I try to use "Order by" to order a list of Dates beginning by the earliest in VB.Net.The variables and methods are:
-Dim SetupStart As DateTime
-Dim SetupTimeList As New List(Of Date)
if it doesn't make any sense I would be glad if some one could show me how to order this list ascending by the earlist date.
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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?
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Oct 20, 2010
I'm using two DateTimePickers to represent 'StartDate' & 'EndDate'. On initialization I set the StartDate control to today's date at 12:00 AM. I do that like this;
[Code]...
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Aug 11, 2011
I have written XML file having a Date <Date>10/11/2011</Date> tag in it as above and trying to read it from VB.NET:
If TypeOf item Is DateTime Then
nextItem = DirectCast(item, DateTime).ToString("MMM-d-yyyy hh:mm:ss.fff", ci)
End If
How to get the date tag in XML in datetime format in the application? (As I am getting the date value as string in the application)
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May 11, 2010
is there a date datatype in visual studio 2008? cause i want to create a column name with date as its datatype.. but the one that comes out is datetime..
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Apr 25, 2010
i m using mdb file i need to get Date from DateTime field and i have to group by the Date?
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May 6, 2012
Dim cDT as date
strSQL = "Insert Into computetb (period_id, date, staffer_no, day_type, restday, rate_hr, regular_hr, ot_hr, night_diff, basic_pay, ot_pay, nd_pay) Values (" & gPeriodID & ",#" & cDT & "#," & cID & ",'" & cTYP & "'," & cREST & "," & cRATE & "," & cREG & "," & cOT & "," & cND & "," & bp & "," & ot & "," & nd & ")"
dbs.Execute (strSQL)
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Jun 22, 2010
I am in ethiopia and we have 13 monthes. 12 of them with 30 days each and 13th month with 5 or 6 days. I want to sort my data by date using the bindingsource sort method. But to do that I need to set my date field a date data type. When i set the datatype to date, i can't enter some values like 13 for the month value and 30 for day value of 2nd month.
What I want is just to make my application accept 13 as a month and 30 as a day for all monthes, so that i can sort my data by date. Is it possible to do so by setting culture for my application or by some other means?
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Feb 3, 2010
I am in ethiopia and we have 13 monthes. 12 of them with 30 days each and 13th month with 5 or 6 days. I want to sort my data by date using the bindingsource sort method. But to do that I need to set my date field a date data type. When i set the datatype to date, i can't enter some values like 13 for the month value and 30 for day value of 2nd month.
What I want is just to make my application accept 13 as a month and 30 as a day for all monthes, so that i can sort my data by date. Is it possible to do so by setting culture for my application or by some other means?
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Jan 1, 2012
Assuming that i picked a day from a Calendar component on VS 2008, how may i add a specific number of days to the date? (i've to store the final date in datetime datatype to DB after which) Parsing involved possibly?
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Mar 25, 2011
How can I save a date data type from vb.net to access that access have date/time in its data type and how can I retrieve it? I also want to use datediff to auto calculate the age to be shown in a textbox.
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Jan 28, 2010
I'm attempting to pass in a collection of dates to a T-SQL 'IN' clause via a date array (see below for how data is collated).
'Workout weeks difference between start and enddate
Dim wksDifference As Integer = CType(DateDiff(DateInterval.WeekOfYear, bookingStartDate, bookingEndDate), Integer)
[code].....
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Feb 9, 2009
I'd want a text box that at design time the developer can set a datatype property so only a value matching that datatype can be entered at runtime (e.g. If we made the datatype property of a textbox an integer then the user could only enter numbers into that textbox)In additiion I need a further property to replace ".Text". .Text always holds the entered value as a string, I want the new property to contain what has been written into the textbox but as the datatype that has been selected at design time.
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Mar 8, 2010
anything wrong with using datatype object and determine datatype in class property? I have a typed dataset and it has several integers columns that are null in the db. and when I make a call it throws exception.is there anythign wrong with setting it as object in my dataset.. changing the throw exception property to Nothing and passing it to my property as integer?
for each row in myDS.DataTable
cRate.CustID = row.CustID
next row
and in my class
Public Property CustID() As Integer
Get
Return _custID[code].............
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Sep 28, 2011
I am currently trying to develop a chat application which will work on a LAN, however encountering problems with with adding a user through the registration form, always getting the result :: "Datatype mismatch in criteria expression" I've tried checking and cross-checking the datatypes used in both the database(its a .mdb database,, created in Microsoft Access)this is the code i am using:
dim con as new oledbconnection
dim cmd as new oledbcommand
Public Sub UserReg()
[code]....
everything is done,, such as opening the connection and defining teh data reader, etc as you can see from teh code(which was derived from another question but i made edits to suit my use for it)I also have problems with checking wether a user is online. obviously i will be referring to the table to do that using something like
cmd = new oledbdatacommand("SELECT * FROM Users where isOnline = "Yes")
dim sdr as oledbdatareader = cmd.execute reader
whence it will show a list of all the currently "Online users" but i do not how how to quite refer to it?
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Dec 7, 2009
I am using the following to get an array of a directory. I was recently told that I needed to process my files in date order.
Dim filelist() As String = IO.Directory.GetFileSystemEntries(CustomerDirectory, ConversionWildCard)
For Each filename As String In filelist
'do conversion here
Next
how I can get the list of files in date order?
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Nov 10, 2009
I don't think the, System.Collections.ObjectModel has any sort or order by capability.
I have a list of files and I'd like to sort by the file date.
Dim list AS System.Collections.ObjectModel.ReadOnlyCollection(Of String)
list = My.Computer.FileSystem.GetFiles("C:SearchFolder" _
, FileIO.SearchOption.SearchByTopLevelOnly _
[Code]...
This returns the last file, but based on file name and not date. I think I need to add .OrderBy(... just can't get that part.
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Nov 15, 2011
I have datagridview1 " order by data,Time" its working fine ,Now I am moving a row from DGV2 to DGV1 and how to override the Date,Time Order which is in DGV1 so only that row comes first.
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Apr 30, 2002
I'm using a 3rd party chart COM object (National Instruments CW graph) to plot data versus elapsed time.The x value needs to be a VB6 equivalent Date type which is a .NET DateTime datatype.What I need is a way to convert a TimeSpan datatype to a DateTime datatype.
Dim testTime as System.DateTime 'date
Dim plotTime as System.DateTime 'date
Dim elapsedTime as System.TimeSpan[code].....
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Jan 15, 2012
I have a database in mysql. The column in table is of datatype time(0)
Similarly I have a control datetimepicker in vb.net I have assigned format property as custom to the control and the CustomFormat property as HH:mm:ss tt so that it can just provide the time. I dont want the date to be in it.
Issue comes when I try to retrieve the value from database I get an error as Converion of type 'Timespan' to type 'Date' is not valid
Try
Dim myCommand As SqlCommand
myCommand = New SqlCommand("select * from [HMS].[dbo].[DoctorSchedule] where DoctorID='" & txtDoctorID.Text & "'", Connection)
[Code].....
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Mar 21, 2010
I am having an issue adding posts to LiveJournal via the xmlrpc api they provide. I want to add entries older than what I have listed on LiveJournal already. But I get a response saying: "You have an entry which was posted at 2009-09-06 18:32, but you're trying to post an entry before this. Please check the date and time of both entries. If the other entry is set in the future on purpose, edit that entry to use the "Date Out of Order" option. Otherwise, use the "Date Out of Order" option for this entry instead." I haven't found an argument for the "Date Out of Order" option using the LJ.XMLRPC.postevent method.
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Oct 15, 2009
I'm using VB.NET in Visual Studio 2008. I'm programming an application to take processing orders and give the total price plus the shipping date. I would like something like : shipping_date = Current_Date + 3 days but I know this doesn't work. Any ideas?
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Oct 11, 2011
I am trying to copy the records from my WO table and trying to change the scheduled_date like. If I have already entered a work oder and scheduled it on 26-SEO-2011 when the next month comes it should give me message do you want to crate work oders when i press yes it should copy the those records which has current date and change it month e.g in our example 26-SEP-2011 to 26-OCT-2011 and save it but i am unable to perform this task and similer procedure will be for other saved records when their scheduled date come it should copy it and change the month and save.
This piece of code is on form load event
Private Sub QueryWorkorder()
Dim con As New OleDbConnection("Provider=MSDAORA.1;Data Source=(DESCRIPTION=" _
+ "(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=196.111.116.205)(PORT=1521)))" _
+ "(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=Dummy)));" _
+ "User Id=PCHR;Password=PCHR;")
[Code] .....
And I am calling it on form load event. And I am changing the date from control panel and then running the project it didn't populate the message do you want to create record what should I do?
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Aug 15, 2009
I'm trying to cycle thru the emails in an Outlook Inbox, but strangely, when my code cycles thru each individual email, the order of each in the FOR....IN.... loop is non-sensicle. The loop seems to start from the email in the middle of the list, cycles down to the end, then starts at the last email received and cycles down from there. When viewed in Outlook and sorted by latest email first and descending, the emails seems to be in order. This is my code:
[Code]....
Should I have to sort the emails first by received date descending? If so, how do I do that? If you look at my code, I have attempted that but it doesn't seem to work.
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May 21, 2009
I am facing issue sorting my grid view on date column in ascending order.
Private Sub SortGridView(ByVal dt As DataTable, ByVal col As String)
dt.DefaultView.Sort = col & " DESC"
GridView1.DataSource = dt
End Sub
Where col is "date" and dt is the data table to sort
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Dec 4, 2009
im trying to get the user of my program to enter their date of birth ad for the program to return how old they are in years, months and days (you are 10 years, 3 months and 23 days old) type thing and if its their birthday, to return an appropriate message.atm ive got a textbox for the days, a combo box for the month and another textbox for the year. i guess the real question is how do i use these to do the above.
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Mar 10, 2009
I have a form that collects user parameters to print a report. There are two DateTimePickers to let the user select a date range for the report. The selection of a date range is optional so I set the From picker to a date before any data could be present. If the user wants to select a date range, the from field is set to a very old date so it takes a long time to get to any current dates. Whe I'd like to do is when the user drops down the picker, reset the date to today and let the user scroll from there.I tried the dropdown even in the picker, but the new date doesn't get set until the user has already selected a date. Any suggestions on how to get this type of UI behavior? Also any better suggestions to streamline the process?The main objective it to collect from and to dates from the user is they want to select them and collect wide ranging dates if the user doesn't enter any.
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Jan 2, 2011
I am working on a produce inventory database in my VB Express program.I have a form on the bottom and a spreadsheet at the top. I want to enter all the data in the form and have that data automatically transferred as a group to the spreadshet in the upper part of the page when I press a button.I know that there's an insert function.I set it up correctly. The problem is that I have to convert the textbox, which contain string data, to the datatype used in the database spreadsheet.HOw do I use CAST or do this?Here's the function I am using:
Me.TableAdapterManager.InventoryTableAdapter.Insert(IDTextBox.Text, fruitName, unitprice, unitsize, unitIn, unitTransit, unitOut)
Evernything is a string cause the data is coming from a textbox, I need to convert it to the datatypes used in the database.Also how do I use the CAST and Convert functions
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May 27, 2009
i want prevent user order column.i have a datagridview , it has allowuserordercolumns properties and it is set to false. But i didnt see so. i still order column.how can i prevent user ordering column.
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Sep 25, 2009
writing user info such as user, computer name, date, and time to an acces database using a button click event. Then use a query to check if the user has accepted the aggreement. If the user has accepted the aggreement then call a vb.exe that display the aggrement. I have a login script that runs the vb.exe and uses a button click that records the user info to a csv file, but if the user has already agreed to the policies I do not want it run again.
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