| Aliases | Gets the alternative names for this command line argument. |
| AllowNull | Gets a value that indicates whether or not this argument accepts values. |
| ArgumentName | Gets the name of this argument. |
| ArgumentNameWithPrefix | Gets the name of this argument, with the appropriate argument name prefix. |
| ArgumentType | Gets the type of the argument's value. |
| CancelParsing | Gets a value that indicates whether argument parsing should be canceled if this argument is encountered. |
| CanSetProperty | When implemented in a derived class, gets a value that indicates whether this argument is backed by a property with a public set method. |
| Converter | Gets the converter used to convert string values to the argument's type. |
| DefaultValue | Gets the default value for an argument. |
| Description | Gets the description of the argument. |
| DictionaryInfo | Gets information that only applies to dictionary arguments. |
| ElementType | Gets the type of the elements of the argument value. |
| HasLongName | Gets a value that indicates whether the argument has a long name. |
| HasShortName | Gets a value that indicates whether the argument has a short name. |
| HasValue | Gets a value indicating whether the value of this argument was supplied on the command line in the last call to CommandLineParserParse(String). |
| IncludeDefaultInUsageHelp | Gets a value that indicates whether the default value should be included in the argument's description in the usage help. |
| IsHidden | Gets or sets a value that indicates whether the argument is hidden from the usage help. |
| IsRequired | Gets a value that indicates whether the argument is required. |
| IsRequiredProperty | Gets a value that indicates whether the argument is backed by a required property. |
| IsSwitch | Gets a value indicating whether this argument is a switch argument. |
| Kind | Gets a value which indicates what kind of argument this instance represents. |
| LongNameWithPrefix | Gets the long argument name with the long prefix. |
| MemberName | Gets the name of the property or method that defined this command line argument. |
| MultiValueInfo | Gets information that only applies to multi-value or dictionary arguments. |
| Parser | Gets the CommandLineParser that this argument belongs to. |
| Position | Gets the position of this argument. |
| ShortAliases | Gets the alternative short names for this command line argument. |
| ShortName | Gets the short name of this argument. |
| ShortNameWithPrefix | Gets the short argument name with the primary short prefix. |
| UsedArgumentName | Gets the name or alias that was used on the command line to specify this argument. |
| Validators | Gets the argument validators applied to this argument. |
| Value | Gets the value that the argument was set to in the last call to CommandLineParserParse(String). |
| ValueDescription | Gets the short description of the argument's value to use when printing usage information. |