Auto Number Descending Order + GridView

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C#

.NET

How to show Auto Number in Descending Order?

Posted 15-Mar-11 2:23am

LebneizTech

Updated 15-Mar-11 2:27am

Henry Minute

v2

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m@dhu 15-Mar-11 8:25am

So whats your question.

Henry Minute 15-Mar-11 8:29am

Please edit your question to indicate if this is a Windows Forms or ASP.Net or something else.

As you use 'GridView' I would guess ASP.Net, but it would only be a guess.

LebneizTech 15-Mar-11 8:55am

Sir, I am using ASP .Net (Web Based)
I am binding a Grid,First Column is Auto Number : Using <%# Container.DataItemIndex+1 %>.
It Shows 1,2,3,4....44,45.in Ascending Order.BUT,
I require in Descinding Order like: 45,44,43 .....3,2,1.

Albin Abel 15-Mar-11 9:02am

If you know the total items then <%# TotalItems-Container.DataItemIndex %>.

LebneizTech 15-Mar-11 9:04am

There is no Total Items Known,Depends on Table Contents(Rows)

Albin Abel 15-Mar-11 9:28am

If you are saying DataTable then the rows collection must have a count/length property.

LebneizTech 16-Mar-11 7:11am

Thank You , I got Solution.

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Manfred Rudolf Bihy · Accepted Answer · 2011-03-15T03:23:00

Solution 1

You just answered the question yourself. If there is no way to know what the total number of records is then how could one possibly count downward. If you can count backward towards one then you know the total number of records by looking at the index of the first record. So if it is indeed impossible to know the total number of records it is also impossible to count backwards from that number towards one!

Eagerly awaiting your rebuttal!

Posted 15-Mar-11 3:23am

Manfred Rudolf Bihy

Comments

Albin Abel 15-Mar-11 9:26am

My 5, Still Op may able find the number of records he retrieve from a database

Manfred Rudolf Bihy 15-Mar-11 9:30am

Please Albin, I'm going on his own statement that this can't be done. I just gave him a small example in logical reasoning. I think he'll get the drift, if you know what I mean :)

fjdiewornncalwe 15-Mar-11 9:32am

When the OP builds his table contents, there must be a query or some king of object list behind it.
He'll have to create a sorter of some kind. If it is SQL based, then a simple ORDER BY clause may do the job, but I think there is something missing in the information he has provided that is keeping us from giving a definitive answer to this one.

Manfred Rudolf Bihy 15-Mar-11 9:34am

Of course Marcus, see my comment on Albin's comment. I just took OP by his word that the total count is unknown and then "proved" to OP if that were true it would be impossible to count backwards to one. A little experiment in logical reasoning won't hurt OP I'm pretty sure.

Albin Abel 15-Mar-11 13:13pm

:)

Espen Harlinn 17-Mar-11 10:12am

Ahh - my 5! :)