Sometimes you have a list, and you need to return a single element from the list. There are several ways to get the element to return. Below are two ways using LINQ with Lambda expressions. Consider the following class: 1: public class Person 2: { 3: public string Name { get; set; } 4: public [...]
Here's a simple example to show you how to GroupBy Multiple Values using LINQ. In this example, I am grouping by Age and Sex to find the count of people who have the same age and sex. C# public partial class LINQ : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { [...]
The ‘GroupBy’ feature in LINQ is amazing and very powerful. When you use a ‘GroupBy’ in LINQ, internally it calls an extension method which returns a sequence of System.Collections.Generic.IEnumerable<(Of <(IGrouping<(Of <(TKey, TSource>)>)>)>) The GroupBy<(Of <(TSource, TKey>)>)(IEnumerable<(Of <(TSource>)>), Func<(Of <(TSource, TKey>)>)) method returns a collection of IGrouping<(Of <(TKey, TElement>)>) objects, one for each distinct key that [...]
Twitter feeds are provided in RSS XML format. This makes it very easy for us to parse out the information we want from a feed using LINQ to XML. For example, if we want to grab the message and date of each Twitter entry, we could use something like this: public class Twitter { [...]
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