Introduced in C# 8.0, the using-declaration language enhancement eliminates nested using-statements. The following code: using System.IO; class Program { static void Main(string[] args) { var filename = “hello.txt”; using (var stream = new FileStream(filename, FileMode.Create)) { using (var writer = new StreamWriter(stream)) { writer.WriteLine(“Hello, World!”); } } } } is improved with using declarations to […]
The following procedure adds encryption to pre-installed Ubuntu 18.04 on Dell XPS 13 7390: Within a console or terminal, sudo into root. $ sudo su – Create LUKS encrypted file container (20,000 Megabytes or 20GB, for example). # dd status=progress if=/dev/zero bs=1M count=20000 of=/.hostname-home.img # cryptsetup luksFormat /.hostname-home.img Open LUKS encrypted file container. # cryptsetup […]
As the holiday season nears, a new laptop for developing skills and personal projects is worth considering. The Dell XPS 13 7390, with an Intel® Core™ i7-10710U processor, is really enticing. Windows 10 Pro, an M.2 PCIe NVMe SDD, and non-touch display are motivating as well. As with other big purchases, a decision will require […]
System.InvalidOperationException: Cross-thread operation not valid. Control “textBox1” accessed from a thread other than the thread it was created on. The above exception was encountered while placing a function call with long execution time on a separate thread and having that thread update a TextBox with status updates. The issue arises, because “access to Windows Forms […]
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