Because property LineColumnVisible is write-only, either add a property getter with an accessibility that is greater than or equal to its setter or convert this property into a method (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1044)

Rename type name SettingsFlags so that it does not end in 'Flags' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1711)

Rename namespace LogExpert.Core.Interface so that it no longer conflicts with the reserved language keyword 'Interface'. Using a reserved keyword as the name of a namespace makes it harder for consumers in other languages to use the namespace. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1716)

Rename type name LoadFileEventArgs so that it does not end in 'EventArgs' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1711)

Rename type name CurrentHighlightGroupChangedEventArgs so that it does not end in 'EventArgs' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1711)

Rename type name ExportImportFlags so that it does not end in 'Flags' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1711)

'PersisterXML' is obsolete: 'XML persistence is deprecated and will be removed in future versions. This is a fallback for older Versions'

In externally visible method 'IColumnizedLogLine JsonColumnizer.SplitLine(ILogLineColumnizerCallback callback, ILogLine line)', validate parameter 'line' is non-null before using it. If appropriate, throw an 'ArgumentNullException' when the argument is 'null'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1062)

Change the type of parameter 'uriString' of method 'IFileSystemPlugin.CanHandleUri(string)' from 'string' to 'System.Uri', or provide an overload to 'IFileSystemPlugin.CanHandleUri(string)' that allows 'uriString' to be passed as a 'System.Uri' object (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1054)

In externally visible method 'void JsonColumnizer.Selected(ILogLineColumnizerCallback callback)', validate parameter 'callback' is non-null before using it. If appropriate, throw an 'ArgumentNullException' when the argument is 'null'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1062)

Change the type of parameter 'uriString' of method 'IFileSystemPlugin.GetLogfileInfo(string)' from 'string' to 'System.Uri', or provide an overload to 'IFileSystemPlugin.GetLogfileInfo(string)' that allows 'uriString' to be passed as a 'System.Uri' object (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1054)

In externally visible method 'Priority JsonColumnizer.GetPriority(string fileName, IEnumerable<ILogLine> samples)', validate parameter 'fileName' is non-null before using it. If appropriate, throw an 'ArgumentNullException' when the argument is 'null'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1062)

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Do not nest type ColumnWithName. Alternatively, change its accessibility so that it is not externally visible. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1034)

In externally visible method 'IColumnizedLogLine JsonColumnizer.SplitLine(ILogLineColumnizerCallback callback, ILogLine line)', validate parameter 'line' is non-null before using it. If appropriate, throw an 'ArgumentNullException' when the argument is 'null'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1062)

Modify 'SplitLine' to catch a more specific allowed exception type, or rethrow the exception (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1031)

In externally visible method 'void JsonColumnizer.Selected(ILogLineColumnizerCallback callback)', validate parameter 'callback' is non-null before using it. If appropriate, throw an 'ArgumentNullException' when the argument is 'null'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1062)

Modify 'GetTimestamp' to catch a more specific allowed exception type, or rethrow the exception (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1031)

Do not nest type ColumnWithName. Alternatively, change its accessibility so that it is not externally visible. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1034)

In member DateTime GlassfishColumnizer.GetTimestamp(ILogLineColumnizerCallback callback, ILogLine logLine), change parameter name logLine to line in order to match the identifier as it has been declared in DateTime ILogLineColumnizer.GetTimestamp(ILogLineColumnizerCallback callback, ILogLine line) (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1725)

The method FlashWindowEx didn't use DefaultDllImportSearchPaths attribute for P/Invokes. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca5392)

Change the type of parameter 'uriString' of method 'IFileSystemPlugin.CanHandleUri(string)' from 'string' to 'System.Uri', or provide an overload to 'IFileSystemPlugin.CanHandleUri(string)' that allows 'uriString' to be passed as a 'System.Uri' object (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1054)

Type 'Win32Stuff' is a static holder type but is neither static nor NotInheritable (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1052)

Change the type of parameter 'uriString' of method 'IFileSystemPlugin.GetLogfileInfo(string)' from 'string' to 'System.Uri', or provide an overload to 'IFileSystemPlugin.GetLogfileInfo(string)' that allows 'uriString' to be passed as a 'System.Uri' object (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1054)

FLASHWINFO should override the equality (==) and inequality (!=) operators (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1815)

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

FLASHWINFO should override Equals (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1815)

Change the type of parameter 'uriString' of method 'IFileSystemPlugin.CanHandleUri(string)' from 'string' to 'System.Uri', or provide an overload to 'IFileSystemPlugin.CanHandleUri(string)' that allows 'uriString' to be passed as a 'System.Uri' object (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1054)

Change the type of parameter 'uriString' of method 'IFileSystemPlugin.GetLogfileInfo(string)' from 'string' to 'System.Uri', or provide an overload to 'IFileSystemPlugin.GetLogfileInfo(string)' that allows 'uriString' to be passed as a 'System.Uri' object (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1054)