How Can I Implement Pagination in LINQ to Objects Using Skip and Take?

LINQ to Objects Pagination

Use LINQ query to implement paging, just use the Skip and Take extension methods to easily complete it. The solution will be introduced in detail below:

Use Skip and Take to implement paging

The

Skip method skips the first N elements in the result set and returns the remaining elements. The Take method returns the first N elements in the result set and discards the remaining elements.

To emulate SQL's TOP function, you can apply the Skip and Take methods as follows:

1. Determines the number of objects to display per page (for example, pageSize = 10).
2. Determine which page number to display (for example, pageNumber = 3).
3. Calculate the index of the first element to skip using the formula: offset = pageSize * (pageNumber - 1).
4. Apply the Skip method to skip the first offset elements in the query results.
5. Apply the Take method to retrieve the next pageSize elements.

Code Example

Assuming your LINQ query queryResult retrieves a list of objects, you can implement pagination as follows:

<code class="language-csharp">int pageSize = 10;
int pageNumber = 3;

var queryResultPage = queryResult
    .Skip(pageSize * (pageNumber - 1))
    .Take(pageSize);</code>

In this example, pageNumber starts from 1, representing the page number to be displayed. If your pageNumber starts at 0, you need to adjust the formula accordingly: offset = pageSize * pageNumber.

More resources

For more information about the Skip and Take methods, please refer to Microsoft's documentation:

• Skip Extension method
• Take Extension method

The above is the detailed content of How Can I Implement Pagination in LINQ to Objects Using Skip and Take?. For more information, please follow other related articles on the PHP Chinese website!