private void lbTech_DragDrop(object sender, DragEventArgs e)
{
Subject str = (Subject)e.Data.GetData(typeof(Subject));
TechSubjects.Add(str);
lbTech.AllowDrop = false;
}
private void btToTech_Click(object sender, EventArgs e)
{
if (lbNaturalScience.SelectedIndex != -1)
{
TechSubjects.Add(NaturalSubject[lbNaturalScience.SelectedIndex]);
NaturalSubject.RemoveAt(lbNaturalScience.SelectedIndex);
}
}
private void btToNaturalScience_Click(object sender, EventArgs e)
{
if (lbTech.SelectedIndex != -1)
{
NaturalSubject.Add(TechSubjects[lbTech.SelectedIndex]);
TechSubjects.RemoveAt(lbTech.SelectedIndex);
}
}
private void lbTech_MouseDown(object sender, MouseEventArgs e)
{
int index = lbTech.IndexFromPoint(e.X, e.Y);
if (lbTech.Items.Count == 0 || index == -1)
{
return;
}
lbNaturalScience.AllowDrop = true;
Subject s = TechSubjects[index];
DragDropEffects dde1 = DoDragDrop(s, DragDropEffects.All);
if (dde1 == DragDropEffects.All)
{
TechSubjects.RemoveAt(index);
}
}
