Let’s say you have a class like that: public class Student { public string Name { get; set; } public string Surname { get; set; } public DateTime DateCreated { get; set; } … } If you want to join the name values of that class then you can use the code below: using System.Linq […]
using System.Security.Claims; var userId = User.FindFirstValue(ClaimTypes.NameIdentifier); Note that this extension method only works for Users inside controllers, not view components, as the view component User is of IPrincipal.
Like converting XML to Json or Json to XML, you can also use Newtonsoft to get formatted Json. private static string FormatJson(string json) { dynamic parsedJson = JsonConvert.DeserializeObject(json); return JsonConvert.SerializeObject(parsedJson, Formatting.Indented); } Note: You can use var instead of dynamic. Both will work.
Unlike a List<> A HashSet is a List with no duplicate members. Because a HashSet is constrained to contain only unique entries, the internal structure is optimized for searching (compared with a list) – it is considerably faster Adding to a HashSet returns a boolean – false if addition fails due to already existing in […]
The formal description for SelectMany() is: Projects each element of a sequence to an IEnumerable and flattens the resulting sequences into one sequence. SelectMany() flattens the resulting sequences into one sequence and invokes a result selector function on each element. The main difference is the result of each method while SelectMany() returns flattened results; Select() […]
<span class=”btn btn-@(item.Value == 1 ? “primary” : item.Value == 2 ? “warning” : “danger”)”>EVALUATE</span> Briefly, we can say that @(condition ? “the value, if the condition is true” : “the value, if the condition is false” )
<script> var mySessionValue = ‘<%= Session[“SessionName”].ToString() %>’; alert(mySessionValue); </script>
@Html.ListBox( “Countries”, ViewBag.AllCountries as MultiSelectList, new { @class = “form-control”, data_placeholder = “Choose a Country…” } )