ProjectLib/ProjectLibrary/FormLibrary.cs

using System.ComponentModel;
using Unity;

namespace ProjectLibrary
{
    public partial class FormLibrary : Form
    {
        private readonly IUnityContainer _container;

        public FormLibrary(IUnityContainer container)
        {
            InitializeComponent();
            _container = container ?? throw new ArgumentNullException(nameof(container));
        }

        private void êàðòàÑîòðóäíèêàToolStripMenuItem_Click(object sender, EventArgs e)
        {

        }

        private void ÷èòàòåëèToolStripMenuItem_Click(object sender, EventArgs e)
        {
            try
            {
                _container.Resolve<Forms.FReaders>().ShowDialog();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Îøèáêà", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void çàêàçàòüÊíèãèToolStripMenuItem_Click(object sender, EventArgs e)
        {
            try
            {
                _container.Resolve<Forms.FOrders>().ShowDialog();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Îøèáêà", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
}