void p_OnAssignStudent(object sender, AssignStudentEventArgs e)
{
//1. 檢查目地端是否有指定學生，
ucContentCell targetCell = this.dicLayoutCells[e.Coordinate];
if (targetCell.Student != null)
{
string msg = string.Format("是否將此座位從『{0}』換成『{1}』？", targetCell.Student.Name, e.Student.Name );
if (MessageBox.Show(msg, "注意", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == System.Windows.Forms.DialogResult.No)
return;
else //清除位置上原本的學生
{
string origStudID = targetCell.Student.ID;
targetCell.Student.SeatX = "";
targetCell.Student.SeatY = "";
targetCell.ClearData();
if (!updatedStudentIDs.Contains(origStudID))
updatedStudentIDs.Add(origStudID); //把有修改的學生ID紀錄起來，以備儲存時候用。
this.stud_coords.Remove(origStudID);
}
}
//2. 檢查此學生是否有排過座位，如果是，則把原來的座位資訊清除，然後指定到新座位。
string studID = e.Student.ID;
if (this.stud_coords.ContainsKey(studID))
{
//清除這位學生原來座位的資訊。
CellCoordinate old_coord = this.stud_coords[studID];
ucContentCell oldCell = this.dicLayoutCells[old_coord];
if (oldCell.Student != null)
{
string oldStudID = oldCell.Student.ID;
oldCell.Student.SeatX = "";
oldCell.Student.SeatY = "";
oldCell.ClearData();
if (!updatedStudentIDs.Contains(oldStudID))
updatedStudentIDs.Add(oldStudID); //把刪除位置的學生ID紀錄起來，以備儲存時候用。
if (this.stud_coords.ContainsKey(oldStudID))
this.stud_coords.Remove(oldStudID);
}
}
//3. 指定到新位置
ucContentCell newCell = this.dicLayoutCells[e.Coordinate];
newCell.Student = e.Student;
e.Student.SeatX = e.Coordinate.X.ToString();
e.Student.SeatY = e.Coordinate.Y.ToString();
this.stud_coords.Add(studID, e.Coordinate);
if (!updatedStudentIDs.Contains(e.Student.ID))
updatedStudentIDs.Add(e.Student.ID); //把刪除位置的學生ID紀錄起來，以備儲存時候用。
//4. Refresh Listbox
this.fillListBox();
}
private void ucTransparentPanel1_DragDrop(object sender, DragEventArgs e)
{
SeatTableStudent student = (SeatTableStudent)e.Data.GetData("EMBACore.Forms.SeatTable.SeatTableStudent");
if (this.OnAssignStudent != null)
{
AssignStudentEventArgs args = new AssignStudentEventArgs();
args.Student = student;
args.Coordinate = Coordinate;
this.OnAssignStudent(this, args);
}
//this.Student = student;
//MessageBox.Show(this.Student.Name);
}