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...realize a MultiSelect in ShellListView?
Autor: Owen Barnes
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Tip Rating (13):  
     


{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ShellListView does not have a files property (common in dialogs eg TOpendialog),
therefore we have to cycle through each item to find out whether the
item is selected or not.

Use this function to obtain a list of selected files in a ShellListView:
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}

function SelectedFiles(AShellView: TShellListView): TStringList;
begin
  
Result := TStringList.Create;
  for i := 0 to shelllistview1.Items.Count - 1 do
    
// is the item selected?
    
if shelllistview1.Items[i].Selected = True then
      
// Folders can also refer to files, which is why we check isFolder
      // before adding the filepath to the result
      
if shelllistview1.folders[i].IsFolder = False then
        
// add filepath and filename to result
        
Result.Add(shelllistview1.Folders[i].PathName);

end;

// ---------- Usage: -------------------------------------------------

procedure TForm1.Button1Click(Sender: TObject);
var 
  
i: Integer;
  FileList: TStringList;
begin
  try
    
FileList := TStringList.Create;  //create stringlist to contain filenames
    
FileList := SelectedFiles(ShellListView1);  //populate tstringlist

    
if FileList.Count = 0 then Exit; //exit if no files selected

    
for i := 0 to FileList.Count - 1 do
      
ShowMessage(FileList[i]);  //cycle through each filename and do something
  
finally
    
FreeAndNil(FileList); //free tstringlist when finished
  
end;
end;


 

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