Self-closing helpers are helpers that can contain HTML and Razor markup. The built-in @Html.BeginForm() helper is an example of this helper type.
In order to create this type of HTML Helper, we'll need to create a helper class that implements the IDisposable interface. Using the IDisposable interface, we can write the element's closing tags when the object is disposed.
The Bootstrap Alert component is a good candidate for such a helper. To create the helper, we'll have to complete the following steps:
Create a new subfolder called
Alertsinside theHelpersfolder in your project.Open the
Enums.csfile and add a new item calledAlertStyle:public enum AlertStyle { Default, Primary, Success, Info, Warning, Danger }Add a new class file called
Alert.csto theAlertsfolder.Add a new private, read-only
TextWriterobject field to the class called_writer:private...