1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.Linq; 7 using System.Text; 8 using System.Windows.Forms; 9 10 namespace EFBindingDataGridView11 {12     public partial class Form1 : Form13     {14         Model1 model = new Model1();15         List<Setting> list = new List<Setting>();16         public Form1()17         {18             InitializeComponent();19         }20 21         private void loadButton_Click(object sender, EventArgs e)22         {23             list = model.Settings.ToList() ;24             bindingSource1.DataSource = list;25             dataGridView1.DataSource = bindingSource1;26         }27 28         private void saveButton_Click(object sender, EventArgs e)29         {30             dataGridView1.EndEdit();31             bindingSource1.EndEdit();32             //保存前把新增的对象加入33             foreach(Setting item in list)34             {35                 if(model.Entry(item).State == System.Data.Entity.EntityState.Detached)36                 {37                     model.Settings.Add(item);38                 }39             }40             model.SaveChanges();41         }42 43 44         private void dataGridView1_UserDeletingRow(object sender, DataGridViewRowCancelEventArgs e)45         {46             //获取删除的对象47             Setting set = (Setting)e.Row.DataBoundItem;48             model.Settings.Remove(set);49         }50 51     }52 }