Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

ArrayList

Posted on 2007-04-03
6
727 Views
Last Modified: 2013-11-26
Hi,

I'm using ASP.NET 2005 with SQL Server.  I need to create an array to store 2 values which are StartDate and EndDate.  The dates will be used as stored procedure parameters to pass to SQL Server. I need to store the StartDate and EndDate into the array.  I created an ArrayList, but was not sure how to go about getting the EndDate value. Do I concatenate the StartDate and EndDate and then retrieve the values?  Could someone show me an example of creating the ArrayList and then retrieving both values using an iteration because I could have more than one StartDate and EndDate values? My code so far is as follows:

‘Assumption:  The ArrayList gets its data by an ADO.NET DataTable.

Dim DateRange As String
DateRange = rdrStartDate + " " + rdrEndDate
                        arrList.Add(DateRange)

Thanks,
Denise
0
Comment
Question by:DeniseGoodheart
  • 3
  • 2
6 Comments
 
LVL 18

Accepted Solution

by:
Elvio Lujan earned 460 total points
ID: 18846556
you can create a structure that way:

        Private Structure dates
            Dim StartDate As DateTime
            Dim EndDate As DateTime
        End Structure

Dim DateRange As dates
DateRange.StartDate = rdrStartDate
DateRange.EndDate = rdrEndDate
arrList.Add(DateRange)
0
 
LVL 22

Assisted Solution

by:_TAD_
_TAD_ earned 40 total points
ID: 18846628

An arraylist stores an object. That Object could be anything - including another array or paired object.


                  ArrayList lst = new ArrayList();

                  lst.Add(new string[]{"Start1","End1"});
                  lst.Add(new string[]{"Start2","End2"});
                  lst.Add(new string[]{"Start3","End3"});

                  string[] str;
                  for (int i=0;i<lst.Count;i++)
                  {
                        str = (string[])lst[i];
                        Console.WriteLine("Start Date is: {0}", str[0]);
                        Console.WriteLine("End Date is: {0}", str[1]);
                  }
0
 

Author Comment

by:DeniseGoodheart
ID: 18846791
Hi lem2802:

Thanks for your code.  How do I create the iteration loop to retrieve the values?  I tried the following with no success.

Private Sub TestArrayList()
        Dim pStartDate As dates
        Dim pEndDate As dates
        Dim i As Integer
        For i = 0 To arrList.Count - 1
            pStartDate = arrList.Item(0)
            pEndDate = arrList.Item(1)
        Next
    End Sub

Thanks,
Denise
0
MIM Survival Guide for Service Desk Managers

Major incidents can send mastered service desk processes into disorder. Systems and tools produce the data needed to resolve these incidents, but your challenge is getting that information to the right people fast. Check out the Survival Guide and begin bringing order to chaos.

 

Author Comment

by:DeniseGoodheart
ID: 18846811
Hi TAD:

Thanks for your code.  How to I get the values?  I tried the following with no success:

Private Sub TestArrayList2()

        Dim paramStartDate As String
        Dim paramEndDate As String

        Dim i As Integer = 0
        Do While (i < lst.Count)
            paramStartDate = lst(0)
            paramEndDate = lst(1)
            i = (i + 1)
        Loop
Thanks,
Denise
0
 
LVL 18

Assisted Solution

by:Elvio Lujan
Elvio Lujan earned 460 total points
ID: 18846904
Private Sub TestArrayList()
        Dim p As dates
        Dim i As Integer
        For i = 0 To arrList.Count - 1
            p.StartDate = ctype(arrList.Item(i), dates).StartDate
            p.EndDate = ctype(arrList.Item(i), dates).EndDate
         Next
    End Sub
0
 

Author Comment

by:DeniseGoodheart
ID: 18847005
Many thanks,
Denise
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

ASP.Net to Oracle Connectivity Recently I had to develop an ASP.NET application connecting to an Oracle database.As I am doing it first time ,I had to solve several problems. This article will help to such developers  to develop an ASP.NET client…
A quick way to get a menu to work on our website, is using the Menu control and assign it to a web.sitemap using SiteMapDataSource. Example of web.sitemap file: (CODE) Sample code to add to the page menu: (CODE) Running the application, we wi…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question