public override void Execute()
{
var companyId = SelectedCompany.company.Id;
int amountOfShares = Companies.GetAmountOfShares(Q, companyId, ShareholderId);
long bid = Companies.GetSharesCost(Q, companyId, ShareholderId);
Companies.BuyShares(Q, companyId, MyGroupEntity.shareholder.Id, ShareholderId, amountOfShares, bid);
//GoBack();
//ReNavigate();
}