Cannot inherit from static class

• Jun 07, 2019

CodeRush Classic shows the Cannot inherit from static class code issue if a class inherits from a static class.

Fix

Make the base class non static or make the current class not a descendant of the static class.

Purpose

Highlights the class declaration statements, which would cause the Cannot derive from static class compilation error.

Example

C#

public static class MyClass
{
    public static string Property1 { get; set; }
}
public class TestClass: MyClass
{
    public TestClass(string str)
    {
        Property1 = str;
    }
}

Fixes:

C#

public class MyClass
{
    public string Property1 { get; set; }
}
public class TestClass: MyClass
{
    public TestClass(string str)
    {
        Property1 = str;
    }
}

C#

public static class MyClass
{
    public static string Property1 { get; set; }
}
public class TestClass
{
    public TestClass(string str)
    {
        Property1 = str;
    }
    public string Property1 { get; set; }
}