Monthly Archives: October 2017

Use Array.Copy to copy values in two-dimensional arrays in C#

Posted on October 19, 2017 by Rod Stephens

The Array.Copy method can copy values from one array to another. For one-dimensional arrays, this is reasonably straightforward. You specify the source and destination arrays, the indices where copying should start in the two arrays, and the number of items … Continue reading →

Posted in arrays | Tagged array copying, Array.Copy, arrays, C#, C# programming, copy between arrays, example, example program, Windows Forms programming | Leave a comment

Determine whether a year is a leap year in C#

Posted on October 16, 2017 by Rod Stephens

Detecting leap years is basically trivial because the DateTime data type provides an IsLeapYear method to do just this. The example uses the following code to display the leap years between the two entered dates. // List leap years between … Continue reading →

Posted in miscellany, variables | Tagged C#, C# programming, dates, DateTime, example, example program, leap year, leap years, miscellany, variables, Windows Forms programming | Leave a comment

Get a hard drive serial number in C#

Posted on October 14, 2017 by RodStephens

The example Get a disk volume serial number in C# shows how you can find the serial number for a disk volume such as C:\. If you reformat or repartition the drive, however, the volume serial number may change. This … Continue reading →

Posted in system | Tagged C#, C# programming, disk drive, disk drive serial number, disk serial number, drive serial number, example, example program, hard drive serial number, serial number, system, Windows Forms programming | Leave a comment

Get a disk volume serial number in C#

Posted on October 14, 2017 by Rod Stephens

This example uses the GetVolumeInformation API function so get a disk volume’s serial number. It starts by using the System.Rumtime.InteropServices namespace and by declaring the API function. using System.Runtime.InteropServices; … [DllImport(“kernel32.dll”)] private static extern long GetVolumeInformation( string PathName, StringBuilder VolumeNameBuffer, … Continue reading →

Posted in system | Tagged C#, C# programming, computer serial number, disk drive, disk drive serial number, disk serial number, example, example program, serial number, system, Windows Forms programming | 2 Comments

Find class ancestors in C#

Posted on October 12, 2017 by Rod Stephens

The example Find classes that implement an interface or that are descendants of a given class in C# shows how to find a list of classes that are descendants of a class or interface. This example uses similar code to … Continue reading →

Posted in classes, inheritance, interfaces, reflection | Tagged ancestor classes, C#, C# programming, class ancestors, classes, example, example program, find ancestor classes, find derived classes, GetAssemblies, GetTypes, IDisposable, inheritance, interfaces, reflection, Windows Forms programming | Leave a comment

Find classes that implement an interface or that are descendants of a given class in C#

Posted on October 11, 2017 by Rod Stephens

This example lets you find classes that are part of an inheritance or implementation hierarchy. When you enter a class or interface name and click Find, the example uses the following code to search the currently loaded assemblies for classes … Continue reading →

Posted in classes, inheritance, interfaces, reflection | Tagged C#, C# programming, classes, example, example program, find ancestor classes, find classes, find derived classes, GetAssemblies, GetTypes, IDisposable, inheritance, interfaces, reflection, Windows Forms programming | 1 Comment

Display subscripts and superscripts in a RichTextBox in C#, version 2

Posted on October 10, 2017 by RodStephens

The following examples show how to display subscripts and superscripts in a RichTextBox. Display subscripts and superscripts in a RichTextBox in C# Easily display subscripts and superscripts in a RichTextBox in C# Those were fairly simple examples, and Sudhir Srivastava … Continue reading →

Posted in fonts, formatting | Tagged C#, C# programming, equations, example, example program, fonts, format equations, formatting, RichTextBox, subscripts, subscripts and superscripts, superscripts, text formatting, Windows Forms programming | Leave a comment

List a program’s loaded assemblies in C#

Posted on October 5, 2017 by Rod Stephens

The key to this example is the following ListAssemblies method. // List the assemblies. private void ListAssemblies() { lblNumAssemblies.Text = “”; lstAssemblies.Items.Clear(); Cursor = Cursors.WaitCursor; Refresh(); foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies()) { lstAssemblies.Items.Add(assembly.GetName().Name); } // Display the number of assemblies. … Continue reading →

Posted in classes, reflection | Tagged assemblies, assembly, C#, C# programming, classes, example, example program, find ancestor classes, find derived classes, GetAssemblies, loaded assemblies, reflection, Windows Forms programming | Leave a comment

Get the computer’s registered owner and organization in C#

Posted on October 5, 2017 by Rod Stephens

In Windows 98, the system’s registered owner and company name is stored in the following Registry keys: SOFTWARE\Microsoft\Windows\CurrentVersion\RegisteredOwner SOFTWARE\Microsoft\Windows\CurrentVersion\RegisteredOrganization In Windows NT and later, the registered owner and company is stored in the following keys: SOFTWARE\Microsoft\Windows NT\CurrentVersion\RegisteredOwner SOFTWARE\Microsoft\Windows NT\CurrentVersion\RegisteredOrganization This … Continue reading →

Posted in registry, system | Tagged C#, C# programming, example, example program, registered company, registered owner, registered user, registry, system, Windows Forms programming | Leave a comment

Get the computer’s operating system in C#

Posted on October 3, 2017 by Rod Stephens

This example uses the following code to display the operating system version when it starts. private void Form1_Load(object sender, EventArgs e) { OperatingSystem os_info = System.Environment.OSVersion; lblOs.Text = os_info.VersionString + “\n\nWindows ” + GetOsName(os_info); } This example simply gets the … Continue reading →