private void button2_Click(object sender, EventArgs e)
{
int id = int.Parse(dataGridView1.CurrentRow.Cells[0].Value.ToString());
using (var db = new studentEntities())
{
var tbs = db.StudentInfo.Where(t => t.Id == id).FirstOrDefault();
tbs.Name = "更新" + Name + DateTime.Now.ToString();
db.SaveChanges();
}
MessageBox.Show("更新成功");
FrmMainCache_Load(null, null);
}
private void button1_Click(object sender, EventArgs e)
{
int intnum = int.Parse(textBox1.Text.Trim());
//EF一定要有主键，否则报错
using (var enty = new studentEntities())
{
for (int i = intnum; i < intnum + 100; i++)
{
StudentInfo aa = new StudentInfo();
aa.Addess = "地址" + intnum;
aa.Age = i + 1;
aa.Cid = i;
aa.Name = "姓名" + i;
enty.StudentInfo.Add(aa);
}
enty.SaveChanges();
}
MessageBox.Show("成功");
FrmMainCache_Load(null, null);
}
