<PackageReference Include="System.Configuration.ConfigurationManager" Version="10.0.0-preview.4.25258.110" />

StringValidator

public class StringValidator : ConfigurationValidatorBase
Provides validation of a string.
public StringValidator(int minLength)

Initializes a new instance of the StringValidator class, based on a supplied parameter.

public StringValidator(int minLength, int maxLength)

Initializes a new instance of the StringValidator class, based on supplied parameters.

public StringValidator(int minLength, int maxLength, string invalidCharacters)

Initializes a new instance of the StringValidator class, based on supplied parameters.