private CStudent GetStudent(string name)
{
if (name == "" || name == "无人")
{
return(null);
}
foreach (CStudent s in mstudent)
{
if (s.Name == name)
{
return(s);
}
}
CStudent stu = new CStudent(name);
mstudent.Add(stu);
return(stu);
}
private void dgv_DragOver(object sender, DragEventArgs e)
{
Console.Write(".");
if (e.AllowedEffect == (DragDropEffects.Move | DragDropEffects.Copy))
{
DataGridView dgv = (DataGridView)sender;
e.Effect = DragDropEffects.None;
Point p = dgv.PointToClient(new Point(e.X, e.Y));
DataGridView.HitTestInfo droppos = dgv.HitTest(p.X, p.Y);
if (droppos.RowIndex < 0 || droppos.ColumnIndex < 0)
{
return;
}
CStudent dropkv = (CStudent)dgv[droppos.ColumnIndex, droppos.RowIndex].Value;
DataGridViewTextBoxCell dragcell = (DataGridViewTextBoxCell)e.Data.GetData(typeof(System.Windows.Forms.DataGridViewTextBoxCell));
CStudent dragkv = (CStudent)dragcell.Value;
if (dropkv == dragkv)
{
return;
}
e.Effect = DragDropEffects.Move;
}
}
