Castle Game Engine: CastleFileFilters: Class TFileFilterList

# Class TFileFilterList
Description | Hierarchy | Fields | Methods | Properties
## Unit CastleFileFilters ## Declaration `type TFileFilterList = class(specialize TFPGObjectList<TFileFilter>)` ## Description ## Hierarchy TFPGObjectList TFileFilterList ## Overview ### Methods
| `constructor Create(AFreeObjects: boolean);`
| `procedure AddFilter(const Name: string; const Patterns: array of string);`
| `procedure AddFiltersFromString(const FiltersStr: string);`
### Properties
| `property DefaultFilter: Integer read FDefaultFilter write FDefaultFilter default 0;`
## Description ### Methods
| `constructor Create(AFreeObjects: boolean);`
| `procedure AddFilter(const Name: string; const Patterns: array of string);`
Add one file filter, selectable by user. ###### Parameters Name Is a name displayed for for user. Patterns Each string in Patterns is a pattern using * and ? matching characters.
| `procedure AddFiltersFromString(const FiltersStr: string);`
An easy way to add multiple filters encoded in a single string. Filters are separated by '|' (bar character). Each filter has a name, separated from patterns list also by '|'. If filter name starts with '*', it's set as a default filter. Patterns are separated by ';' (semicolon character). As you can see, this prevents some special characters from appearing in names and patterns. For maximum flexibility, don't use this function, use AddFilter. For example `All files (*)|*|All images (*.png;*.jpg)|*.png;*.jpg|PNG images (*.png)|*.png` Not finished pairs of name + pattern at the end of the string are ignored. In particular, empty string is unfinished (actually, it contains an empty Name, and is unfinished because there is no |, so no matching Pattern) so empty string causes no filters to be added.
### Properties
| `property DefaultFilter: Integer read FDefaultFilter write FDefaultFilter default 0;`
Index of default filter, selected by default for user when using this filters list.
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