ASP.NET select random products

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Hellow,

I'm implemeting a web site on asp.net 4.5, i have a table database products with columns (id,name,size,price,date,quantity) where i have imported some items.

My question is how can i preview in my home.aspx(6 random items every time (different or change automatically randomly) my home.aspx).

Thnx in advance for your time!

Posted 23-Sep-13 9:05am

JasonTsoum77

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Richard C Bishop 23-Sep-13 15:08pm

You can iterate through the data using a loop and call the rows by index after you load your results into a datatable. Then use a random number generator with a max value that is the length of your datasource.

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mgoad99 · Accepted Answer · 2013-09-23T12:29:00

Solution 2

I would suggest doing the random selection of products in your DB query not in asp.net. If you are using SQL Server for the DB, then something like this will help:

SQL

SELECT TOP 6 *
  FROM YourTable
  ORDER BY NEWID()

The NewID does the random sample
See this link: http://msdn.microsoft.com/en-us/library/cc441928.aspx[^]

Also, Google "tsql random sample" for more help

That was an interesting question, good luck!

Posted 23-Sep-13 12:29pm

mgoad99

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Member 10186638 24-Sep-13 1:31am

mgoad99 gives nice solution and its work for me when I was creating web application for Online Test

JasonTsoum77 24-Sep-13 9:50am

Thank you for your help

Tom Wauters · Accepted Answer · 2013-09-23T09:51:00

Solution 1

Jason,
Assuming that you know how many entry's there are in the DB and
that the entry's have ID's
If you use

VB

Dim r As New Random
       r.Next(0, 100)

In VB
Or

C#

Random r = new Random();
   r.Next(0,100);

in C# then you can pick a random ID from your DB.

I think you can figure out how to use Random in some
code to take six.

Grtz
Tom

Posted 23-Sep-13 9:51am

Tom Wauters

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JasonTsoum77 24-Sep-13 9:50am

Thank you for your help