How do you set the focus to an InputText element?
We can focus an InputText Blazor element not directly but by using JavaScript in Blazor. We can set an ID for the InputText and then pass it to JavaScript using interop by method InvokeVoidAsync. In the JavaScript function, use the focus DOM input method for focusing the input element with the received ID from Blazor. Refer to the following code snippet. Refer the script file in the HTML page
How do you update a C# value in Blazor using JavaScript?
We can change a C# property’s value in Blazor from JavaScript by invoking the method DotNet.invokeMethodAsync in the script file (.js file). It takes the parameters Assembly name (Application name), the method name (public static method), and method parameter where we can change the C# static parameter. Refer to the following code snippet for more details. Refer the script file in the HTML page In the previous example, we have changed the ParaContent C# field value from the JavaScript by calling the static method ChangeParaContentValue from JavaScript, along with the new value as one of parameters in invokeMethodAsync. The C# method should be defined as static and it should have a JSInvokable attribute. The arguments in the JavaScript method Dotnet.invokeMethodAsync should be InvokeFromJsApp—AssemblyName. ChangeParaContentValue—C# JSInvokable static method name. “New Content”—method arguments. You can download the reference sample here.
How can I bind properties to a list in Blazor?
To bind properties to a list in Blazor, you can use the @foreach loop and the @bind directive. Here’s an example: View Sample in GitHub
How do you get the target element onclick event in Blazor?
Blazor does not have support to manipulate DOM elements directly, but we can still achieve it by using JavaScript interop. By creating a reference to an element, we can send it as a parameter to the JavaScript method via interop. In that JavaScript method, we can manipulate the DOM elements. Refer the script file in HTML page
How does the route parameter assign values to properties in Blazor?
Blazor doesn’t consider the word casing and it just assigns the value if the name is matched. The router parses the name parameter from the URL and sets the value of the component. For instance, if the URL is /RouteParameter/JonSnow, the Name property will be set to “ JonSnow “.