473,771 Members | 2,297 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

How can I loop through each date in a given time period

29 New Member
How can I loop through each date in a given time period so that I can add those dates as a column name in a table.
I want to create datatable with the person's name and hours he worked in a given time period. The user will select the dates and I want to show each day/date in that table as a column name. I have no idea how to do it. Please help.
Sep 2 '10 #1
1 7414
Aimee Bailey
197 Recognized Expert New Member
Usually you'd just iterate using the Days value of a TimeSpan, easy peasy :)

Expand|Select|Wrap|Line Numbers
  1. Public Function LoopThroughDates(ByVal dFrom As DateTime, ByVal dTo As DateTime) _
  2.                                         As List(Of DateTime)
  3.         Dim r As New List(Of DateTime)
  4.  
  5.         Dim diff As TimeSpan = dTo - dFrom
  6.  
  7.         For d = 0 To diff.Days
  8.             r.Add(dFrom.Date.AddDays(d))
  9.         Next
  10.  
  11.         Return r
  12.     End Function
  13.  
Sep 4 '10 #2

Sign in to post your reply or Sign up for a free account.

Similar topics

3
17916
by: CrystalDBA | last post by:
I am using SQL Server 2000. I need to query my database for all the contracts that came in during a certain time frame (user is prompted for reportingperiodid). Table - Periods Fields - Reporting Period id int Reporting Period desc varchar(30) Reporting Period Begin Date datetime Reporting Period End Date datetime
3
2700
by: Dave | last post by:
Hi I am hoping someone might be able to help me out with this. I am writing a helpdesk system which records agents logging in and out of the system. I need to write a stored procedure which will show the peak number of agents logged in concurrently during a specified time period. Within the time period, the person viewing the report should be able to
1
1754
by: Lei Guangfu | last post by:
Hi, I have a program need to check the value of a application available, and then decide whether to execute codes followed. In order to achieve this purpose, I use DO WHILE loop to judge the value, if the value meet the condition clause, program will exit the loop. But this DO WHILE loop consumes too much CPU resource. Now my question is whether a possible way to pause a process for a given time such as one minute? Anyone can give me...
3
7466
by: manning_news | last post by:
Using A2K. I've been asked to modify a report currently requiring only one date parameter to now accept a date range. The main report has 2 subreports and is not bound to a table or query. The report prints dental and hygenist appointments for the date (one subreport for each). The user wants to enter a date range and have one page for each date in the date range. I'm wondering how to modify the report. The only way I see is to create...
15
18894
by: Khurram | last post by:
I have a problem while inserting time value in the datetime Field. I want to Insert only time value in this format (08:15:39) into the SQL Date time Field. I tried to many ways, I can extract the value in timeonly format by using this command Format(now,"HH:mm:ss") But when I insert it into the Sql Server database, it embadded date value with it. the output looks like that "01/01/1900 08:59:00" in that case time is
13
16173
by: maflatoun | last post by:
Hi, I have the following function to convert UTC time to Local time. It works perfect for GMT- (Minus) time zones however it provides incorrect results for GMT+(Plus) time zones? // Format to local time from UTC function formatToLocalTimeDate(inDate) { var today = new Date(); var inDateMod = new Date(inDate);
1
1442
by: sesling | last post by:
I need some help with a date/time field. We run several processing jobs each day. The start and end times are stored in separate columns. The data is stored as date and time. I want to run a query that will sum the total run time of the jobs over a period of several days. Currently I get the run time by subtracting the end time from the start time. I use the short time format to get it to display the time only. Ex. 11/30/2006...
1
3534
by: wetsprockets | last post by:
Hello, I have two tables, WindVector (wind data) and DOH_FC88to07 (water quality samples). The WindVector table has the following fields: Date (short date) Time (short time) WindSpeed WindDir WindDirRads V
6
2431
by: Jeremy Sanders | last post by:
Hi - I need to add support to a program for dates and times. The built-in Python library seems to be okay for many purposes, but what I would like would be Unix epoch style times (seconds relative to some date), covering a large period from the past to the future. What would be nice would be a library which can take floating point seconds from an epoch. Does anyone know of a library which can convert from human style dates and times to a...
1
1434
by: dianatokatlidis | last post by:
Hello. I have 2 separate date fields in a query. One is called Effective_Date and the other is called Expiry_Date. I want to compare the time period between these 2 fields and select any records that fall in the month of January-2008. For example if the Effective_Date = Dec 1, 2007 and Expiry_Date = Feb 5, 2008, then I would keep this record as January-2008 would fall within this time period. If the Effective_Date=Nov 1, 2007 and Expiry...
0
9619
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
9454
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10260
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
1
10038
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
9910
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
8933
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
7460
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
2
3609
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2850
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.