Example (IncludeList/ExcludeList)

Example of changing the search rules at run-time
dcMultiDiskScanner component TDiskScanList class Search rules designers

Following examples demonstrates how to change the IncludeList and ExcludeList searching rules at run-time of your application.

Example

Let's say, we would like to find all picture files (BMP, JPG, JPEG and GIF) at location specified by PictureFolder variable, but would like to exclude all files that begins by "a" letter from search results. We don't want to search the files in subfolders under PictureFolder directory.

with dcMultiDiskScanner do

begin

with IncludeList do

begin

Clear; // clear the IncludeList

AddPath(PicturesFolder + '\*.bmp', False); // False - don't include subfolders

AddPath(PicturesFolder + '\*.jpg', False);

AddPath(PicturesFolder + '\*.jpeg', False);

AddPath(PicturesFolder + '\*.gif', False);

end;

with ExcludeList do

begin

Clear; // clear the ExcludeList

AddPath('a*.*', False);

//or...

// AddPath(PicturesFolder + '\a*.*', False);

end;

Execute;

end;