Non-nullable field '_folderName' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Non-nullable field '_hiddenTextBox' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

The file header is missing or not located at the top of the file. (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1633.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)

Using directive should appear within a namespace declaration (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1200.md)