public async Task ChooseTokens()
{
var act = headersDict.Where(x => x.Value == HeaderType.Activity);
var caseId = headersDict.Where(x => x.Value == HeaderType.Case);
if (!act.Any() || !caseId.Any())
{
await MatDialogService.AlertAsync("You need at least 1 activity and 1 case!");
return;
}
var timetmpList = headersDict.Where(x => x.Value == HeaderType.Timestamp).Select(x => x.Key).ToList();
var time = timetmpList.Any() ? timetmpList[0] : null;
var resources = headersDict.Where(x => x.Value == HeaderType.Resource).Select(x => x.Key).ToArray();
_imported.ChooseTokens(act.FirstOrDefault().Key, caseId.FirstOrDefault().Key, time, resources);
}