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Editorial Team
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Asked: 2026-05-27T03:52:41+00:00

I don’t understand how you can only get the number of needed rows from

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I don’t understand how you can only get the number of needed rows from a database when you need to know the total amount of rows inorder to get paging to work.

What I mean is:
I followed this example:
http://www.c-sharpcorner.com/uploadfile/rizwan328/datalist-custom-paging-in-Asp-Net-using-C-Sharp/

But instead of using a dataTable I have a database.

I get the news from the database like this, this gets all the news from my news table:

List<News> news = News.GetNews();

public static List<News> GetNews(){
    List<News> news = new List<News>();
    using (SqlConnection conn = new SqlConnection(CONNSTRING)) {
            SqlCommand cmd = new SqlCommand("SELECT * FROM News_news ORDER BY date DESC", conn);

That gets all the data from all the news items.

Then I create a PagedDataSource:

PagedDataSource objPds = new PagedDataSource();
objPds.DataSource = news;
objPds.AllowPaging = true;
objPds.PageSize = numRows;
//Set the current page 
objPds.CurrentPageIndex = CurrentPage;

//Set the buttons

Putt the data in a repeater that will show the first 5 items on the aspx page

repeater1.DataSource = objPds;
repeater1.DataBind();

Like this I have a paged front page that shows me the total number of pages and the current page and when I click on the button for the next page I do it all over again.

But I know this isn’t correct since I always get all the news and then discared the news I don’t need. but please, how do need to do it so that I only get the needed news items?

Do I need to first count the number of rows in my table?

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1 Answer

  1. Editorial Team

    To use PagedDataSource, all records will be returned during the query, but you can use persistent data storage (Session and ViewState) to store the data set so that each page request does not have to hit the database again.

    If you want to only ever pull back the records for the page you are viewing, as far as I know you will have to roll your own paging solution. I ran in to the need for my own paging solution a while back, and here is a SO question I asked that helped me do what I needed, Paging choice, on database or in the web application.

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