private void btnLogin_Click(object sender, EventArgs e)
 {
     _employee = _employeeBLL.Get(txtMail.Text, txtPassword.Text);
     if (_employee != null)
     {
         _employee.Position = _positionBLL.Get(_employee.PositionID);
         TaskManagementForm _task = new TaskManagementForm();
         TaskManagementForm._employee = _employee;
         _task.Show();
     }
     else
     {
         MessageBox.Show("Başarısız");
     }
 }
        private void ProjectAddForm_Load(object sender, EventArgs e)
        {
            cmbCompanyName.DataSource    = customerBLL.GetAll();
            cmbCompanyName.DisplayMember = "CompanyName";
            cmbCompanyName.ValueMember   = "ID";
            txtMenagemerName.Text        = MainForm._employee.FullName;


            List <Employee> EmployeeList = new List <Employee>();

            EmployeeList = _employeeBLL.GetAll();
            foreach (Employee employee in EmployeeList)
            {
                if (employee.PositionID != 1)
                {
                    ListViewItem item = new ListViewItem();
                    employee.Position = _positionBLL.Get(employee.PositionID);
                    item.Tag          = employee;
                    item.Text         = employee.FirstName;
                    item.SubItems.Add(employee.LastName);
                    item.SubItems.Add(employee.Position.PositionName);
                    lViewEmployeeList.Items.Add(item);
                }
            }
            if (_updateProject != null)
            {
                txtProjectName.Text          = _updateProject.ProjectName;
                txtProjectDetail.Text        = _updateProject.ProjectDetail;
                MainForm._employee.ID        = _updateProject.ManagerID;
                cmbCompanyName.SelectedValue = _updateProject.CustomerID;
                dtpPlannedStart.Value        = _updateProject.PlannedStartDate;
                dtpPlannedFinish.Value       = _updateProject.PlannedEndDate;
                btnProjectCreate.Text        = "Projeyi Güncelle";
                List <Employee> EmployeeListt = new List <Employee>();
                EmployeeListt = _employeeBLL.ProjectEmployeeGet(_updateProject.ID);
                foreach (Employee employee in EmployeeListt)
                {
                    foreach (ListViewItem item in lViewEmployeeList.Items)
                    {
                        if (item.Tag == employee)
                        {
                            lViewEployeeAdd(item);
                        }
                    }
                }
            }
        }