▲实现方法,在datagridview的m...... 实现方法,在datagridview的mousedown事件中开始 托放。 然后在treeview 的 DragEnter 中接收托放。 最后在treeview的 DragDrop 中处理托放结果。 注:treeview的allowdrop属性要设置为 true。 : 1private void dataGridView1_MouseDown(object sender, MouseEventArgs e) 2 { 3 if (e.Button == MouseButtons.Right) 4 { 5 DataGridView.HitTestInfo info = dataGridView1.HitTest(e.X, e.Y); 6 7 if (info.RowIndex >= 0) 8 { 9 DataGridViewRow dr = (DataGridViewRow) 10 dataGridView1.Rows[info.RowIndex]; 11 if (dr != null) 12 dataGridView1.DoDragDrop(dr, DragDropEffects.Copy); 13 } 14 } 15 } 16 17 private void treeView1_DragEnter(object sender, DragEventArgs e) 18 { 19 e.Effect = DragDropEffects.Copy; 20 } 21 22 private void treeView1_DragDrop(object sender, DragEventArgs e) 23 { 24 if (e.Data.GetDataPresent(typeof(DataGridViewRow))) 25 { 26 Point p = treeView1.PointToClient(new Point(e.X, e.Y)); 27 TreeViewHitTestInfo index = treeView1.HitTest(p); 28 29 if (index.Node != null) 30 { 31 32 DataGridViewRow drv = (DataGridViewRow)e.Data.GetData(typeof(DataGridViewRow)); 33 index.Node.Text = "Drop: " + drv.Cells[0].ToString(); 34 35 } 36 } 37 } |
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