How do I do server-side form validation?
To carry out form validation in a Blazor server-side application, use data annotations to enable validation for the forms. Also, include <DataAnnotationsValidator /> and <ValidationSummary /> in the forms. Refer to the following code sample.
How to disable/hide a button as soon as it is clicked in Blazor?
To disable a button in Blazor after it is clicked, set the disabled property to true for the button element by binding the property. In the sample, the disabled property of a button element is set to true on button click.
What is the use of the StateHasChanged method?
The StateHasChanged is a method in ComponentBase that notifies state changes to a component. When called, it rerenders the component.For more information, check this link.
How to refresh a page after the database is updated?
After the database is updated, StateHasChanged method can be called to refresh the page/UI. When called, this will rerender the component or the page based on the new changes from the database. Razor File
How can I tell when Blazor has finished rendering a DOM element?
The lifecycle methods OnAfterRenderAsync and OnAfterRender are called only when a component has finished rendering. The element and component references are populated at this point. By using these methods, the user can activate third-party JavaScript libraries that operate based on the DOM elements. Razor file