Monday 28 December 2020

More fun with Blazor - creating a folder viewer in 10 minutes

 
   git clone https://github.com/toreaurstadboss/BlazorLiveReloadSample.git 
 
Blazor is very easy to use! I spent 10 minutes to create a simple folder viewer here now.
First off, the Blazor razor component looks like this:
FilewView.razor
@inject IJSRuntime jsRuntime; <h3>FileView</h3> @foreach (var folder in folders) { var depthOfFolder = folder.Split('\\').Count(); <p style="cursor:pointer" @onclick="() => openFolder(folder)"> @for (int i = 0; i < depthOfFolder; i++) { <span style="margin-left:10px"></span> } <i style="color:orange;cursor:pointer" class="fa fa-folder" /> @folder </p> } @code { List<string> folders = Directory.GetDirectories("/").ToList(); private void openFolder(string folder) { jsRuntime.InvokeVoidAsync("log", folder); string[] subfolders = Directory.GetDirectories(folder); Console.WriteLine(folder); int folderIndex = folders.IndexOf(folder); folders.InsertRange(folderIndex, subfolders); } }
We add to the solution also Font-awesome via right click solution explorer and choose Add => Client-Side Library. Search for 'font-awesome' Choose Font Awesome and add all files to be added to the lib/font-awesome folder of wwwroot. Then at the bottom of _Host.cshtml we add:
 
_Host.cshtml
<link rel="stylesheet" href="~/lib/font-awesome/css/all.css" />
Now we have access to the Font Awesome icons.
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2 comments:

  1. It is truly amazing how simple creating web pages becomes for .Net developers with Blazor since they can utilize the full .Net Framework at hand - the folder browse app here uses a component only 30 lines long. Blazor is like that - effortless to create stuff. Of course something more useful than a app that is similar to File Explorer can be crated - the point was to test more stuff out in Blazor!

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  2. The Code Access Security (CAS) will take care of stopping access to folder the user running the browser should not access. You'll get built in .NET security features too

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