How do I show an alert message in a Blazor application?
If you want to show a message using a simple browser alert message box, it is easy to do in Blazor. In Blazor, you can call a JavaScript method using JavaScript interop. In the following code snippets, the text entered in the text box will be displayed in the alert box. In order to call the JavaScript method in Blazor, you should register the method in the browser window class. You can pass the message you want to show by passing method parameters in the JSRuntime.InvokeAsync method. Refer the script file in the HTML page
How do you show real-time data updates using ObservableCollection?
This ObservableCollection (dynamic data collection) provides notifications when items are added, removed, and moved. The implemented INotifyCollectionChanged provides notifications when dynamic changes of adding, removing, moving, and clearing the collection occur. The implementation of INotifyPropertyChanged notifies when property value has changed in client side. Here, Order class implements the interface of INotifyPropertyChanged and it raises the event when CustomerID property value was changed. In the sample, we have add, delete and update buttons where the observable data for the table will be populated, removed or updated through the button click.
How can I redirect to another page in Blazor?
You can redirect to a page in Blazor using the Navigation Manager’s NavigateTo method. In the following code snippet, it will redirect to the home page when this page gets loaded. Similarly, you can call NavigateTo() method from NavigationManager class anywhere to redirect to another page. Refer to the following code snippet.
How do you open a link or URL in a new tab?
A URL can be opened in a new tab either by using the NavLink component or by using JavaScript. In the NavLink component, we can specify the URL to be opened in a new tab in the href parameter. In interop’s IJSRuntime instances, the method InvokeAsyncwith parameters open, URL, and _blank are used. Here, the third parameter, _blank, is used to notify that the URL needs to be opened in the new tab.
How do you change the default icon provider in a Blazor app?
You can change the default icon provider for Blazor by importing the required icons in the site.css (\wwwroot\css\site.css or app.css). The imported icons can be used throughout the application. In the sample, I’ve imported the Material theme icons and used them. [site.css/app.css] [~/Shared/NavMenu.razor] In the sample, I have changed the default icons to the Material icons for the home page and counter.