private void AdminReportsForm_Load(object sender, EventArgs e)
{
dataGridView1.DataSource = bindingSource1;
List <string> users = DbAbstractionLayer.getAllUserNames();
users.ForEach(delegate(String user)
{
usersComboBox.Items.Add(user);
});
usersComboBox.DropDownStyle = ComboBoxStyle.DropDownList;
}
public static bool isUserNameFree(string userName)
{
List <string> users = DbAbstractionLayer.getAllUserNames();
return(!users.Contains(userName));
}