How do I get the window dimension or size in Blazor WebAssembly?
Window dimension values are read using JavaScript Interop with the window.innerHeight and window.innerWidth properties.Follow these steps to get the window dimension value in Blazor WebAssembly. [Index.razor] [index.html]
How do I call a C# method with parameters from JavaScript in Blazor WebAssembly?
DotNet.invokeMethod and DotNet.invokeMethodAsync are used to call C# methods with parameters from JavaScript in Blazor WebAssembly. Syntax to call C# from JavaScript: [Index.razor] [index.html] Refer to this documentation for more details.
How do I implement authentication using SQLite in Blazor?
When we run a Blazor application with a SQL Server localdb for storing authentication data, by following these steps we can implement SQLite in it: Update the NuGet package. Modify the Startup.cs file and connection string. Modify the database migration code. Updating the NuGet package: Remove the Microsoft.EntityFrameWorkCore.SqlServer NuGet package from the current package manager and add the Microsoft.EntityFrameWorkCore.Sqlite package. Modifying the Startup.cs file:Change the Startup.cs file from options.UseSqlServer to options.UseSqlite. Modify the connection string in the AppSettings.json file. “DataSource=<yourdbname>.db” (points to your sqlite database file) Modifying the database migration code:Modify the database migration code to avoid the errors that would occur after performing the previous steps.Change the “00000000000000_CreateIdentitySchema.cs” file as follows. Run the app and start registering a new user for authentication.Refer to this link to learn how to create a SQL database with a Blazor Server application.Refer to this link for more information about authentication with SQLite and Blazor.
How do I implement Office 365 authentication in Blazor WebAssembly?
When using Blazor WebAssembly to enforce Office 365 authentication, it is necessary to include the tenant ID and client ID in the appsettings.json file, which can be found under your Azure account. In Azure AD, a tenant is a dedicated Azure service instance that a company receives and owns after signing up for a Microsoft cloud service such as Azure or Microsoft 365. Each tenant ID is distinct and separate from other tenants. Procedure outline Please refer to this link for a detailed explanation of the implementation of Office 365 authentication.
How do I intercept routing in Blazor before it navigates?
The routing interception concept is sometimes used to restrict user access to some page or link if they did some work or made some changes on a specific page.In the following code, you can use the NavigateTo() method to intercept routing inside the If condition. The routing happens according to the values passed in the condition. Create the class file [RouteData.cs]. …………………. .. namespace BlazorApp.Data { public class RouteData { public string Textfield { get; set; } } } To register the RouteData class as a scoped service in Program.cs, you can use the following code snippet.[Program.cs] builder.Services.AddScoped<BlazorServerApp.Data.RouteData>(); Add the following code to the [Index.razor] page. @page “/” @inject Data.RouteData RouteData<p>Type the text below to allow Home page intercepting</p><textarea @bind=”RouteData.Textfield”></textarea> Check the condition and allow the navigation process in the [NavMenu.razor] page as shown. @inject NavigationManager NavigationManager@inject {Your App name}.Data.RouteData RouteData<div class=”@NavMenuCssClass” @onclick=”ToggleNavMenu”> <ul class=”nav flex-column”> <li class=”nav-item px-3″> <NavLink class=”nav-link” @onclick=”Navigate” Match=”NavLinkMatch.All”> <span class=”oi oi-home” aria-hidden=”true”></span> Home </NavLink> </li> ……………………. . . </ul> </div> @code { private bool collapseNavMenu = true; private string NavMenuCssClass => collapseNavMenu ? “collapse” : null; private void ToggleNavMenu() { collapseNavMenu = !collapseNavMenu; } private void Navigate() { if (RouteData.Textfield == null) NavigationManager.NavigateTo(“”); } ………………… . . . Output Home page routing is intercepted when you type text in the text area. When the text area value is null, the app navigates to the home page. View Sample in GitHub
