private void CreateEntityForm()
{
entityForm = new EntityForm();
entityForm.Shown += (s, e) => entitiesToolStripMenuItem.Checked = true;
entityForm.FormClosing += (s, e) =>
{
e.Cancel = true;
entityForm.Hide();
entitiesToolStripMenuItem.Checked = false;
};
entityForm.EntityChanged += entityForm_EntityChanged;
}
