将datagridview中的值拖放到textbox控件中

View Code

 1 private void Form1_Load(object sender, EventArgs e)
 2         {
 3             List<users> list = new List<users>();
 4             for (int i = 0; i < 10; i++)
 5             {
 6                 users u = new users() { uid = i, name = i.ToString() };
 7                 list.Add(u);
 8             }
 9             this.dataGridView1.DataSource = list;
10             this.textBox1.AllowDrop = true;//设置可接受拖放到上面数据
11         }
12 
13  private void dataGridView1_MouseDown(object sender, MouseEventArgs e)
14         {
15             if (e.Button == System.Windows.Forms.MouseButtons.Left)
16             {
17                 DataGridView.HitTestInfo info = this.dataGridView1.HitTest(e.X, e.Y); //获取行、列信息
18                 if (info.RowIndex > -1 && info.ColumnIndex > -1)
19                 {
20                     string text = this.dataGridView1.Rows[info.RowIndex].Cells[info.ColumnIndex].Value.ToString();///获取值
21                     if (text != null)
22                     {
23                         this.dataGridView1.DoDragDrop(text, DragDropEffects.Copy);///开始拖放操作
24                     }
25                 }
26             }
27         }
28 
29 private void textBox1_DragEnter(object sender, DragEventArgs e)
30         {
31             e.Effect = DragDropEffects.Copy;
32         }
33 
34         private void textBox1_DragDrop(object sender, DragEventArgs e)
35         {
36             if (e.Data.GetDataPresent(typeof(String)))
37             {
38                 this.textBox1.Text = e.Data.GetData(DataFormats.Text).ToString();
39             }
40         }