private void addBt_Click(object sender, EventArgs e)
{
int updateCount = 0;
using (var db = new NameListDbContext())
{
try
{
updateCount = db.SaveChanges();
}
catch (DbEntityValidationException ex)
{
// 例外処理
var errorMessage = "";
ex.EntityValidationErrors.SelectMany(error => error.ValidationErrors).ToList()
.ForEach(model => errorMessage = errorMessage + model.PropertyName + " - " + model.ErrorMessage);
MessageBox.Show(errorMessage);
}
}
this.Close();
}
private void toolStripButton1_Click(object sender, EventArgs e)
{
//【注意】Navigatorデフォルトの削除ボタンを使用すると一つ先のレコードを削除してしまうため使用不可
//メッセージボックス表示
DialogResult result = MessageBox.Show("削除してもいいですか？", "確認", MessageBoxButtons.OKCancel);
if (result == DialogResult.Cancel)
{
return;
}
int currentRow = 0;
//DataGridViewの場合
currentRow = (int)personDataGridView.CurrentRow.Cells[0].Value;
int updateCount = 0;
using (var db = new NameListDbContext())
{
try
{
var item = db.Persons.SingleOrDefault(x => x.Id == currentRow);
if (item != null)
{
db.Persons.Remove(item);
updateCount = db.SaveChanges();
}
}
catch (DbEntityValidationException ex)
{
// 例外処理
ex.EntityValidationErrors.SelectMany(error => error.ValidationErrors).ToList()
.ForEach(item => Console.WriteLine("{0} - {1}", item.PropertyName, item.ErrorMessage));
}
}
//DataGridViewの場合 表示上の削除
personDataGridView.Rows.RemoveAt(personDataGridView.CurrentRow.Index);
}
private void toolStripButton2_Click(object sender, EventArgs e)
{
int updateCount = 0;
using (var db = new NameListDbContext())
{
try
{
var currentPersonId = db.Persons.Max(a => a.personId);
var person = new Person()
{
personId = currentPersonId + 1,
personName = "前田",
mailAddress = "*****@*****.**",
departmentId = 1,
phoneNumber = "090887654567",
detail = "",
createdDateTime = DateTime.Now,
updatedDateTime = DateTime.Now
};
db.Persons.Add(person);
updateCount = db.SaveChanges();
personBindingSource.DataSource = db.Persons.ToList();
}
catch (DbEntityValidationException ex)
{
// 例外処理
var errorMessage = "";
ex.EntityValidationErrors.SelectMany(error => error.ValidationErrors).ToList()
.ForEach(model => errorMessage = errorMessage + model.PropertyName + " - " + model.ErrorMessage);
MessageBox.Show(errorMessage);
}
}
}