private void setDataSourceToGrid()
{
//here um setting the data source for this data grid and hide the coloumn name which is called
//clmDepratmentID
systemManager objsystemManager2 = new systemManager();
dgvDepartment.DataSource = objsystemManager2.LoadDepartmentToGrid();
this.dgvDepartment.Columns["clmDepartmentID"].Visible = false;
}
//method which loads the departments to the combobox.
public void setCmbDepartment()
{
systemManager objsystemManager = new systemManager();
cmbDepartment.DataSource = objsystemManager.LoadDepartmentToGrid();
cmbDepartment.ValueMember = "DepartmentID";
cmbDepartment.DisplayMember = "DepartmentName";
//because of this department combo's display inedex will shown as a blank index
cmbDepartment.SelectedIndex = -1;
}
