//Removes items from the queue
private void btnRemoveQueue_Click(object sender, EventArgs e)
{
UndoBranch.Add(queueList.Items.Cast <string>().ToList());
List <string> ItemsToRemove = queueList.SelectedItems.Cast <string>().ToList();
foreach (string ProgramName in ItemsToRemove)
{
queueList.Items.Remove(ProgramName);
}
}
//On click, grab any selected items from the first list and move them to the other one.
private void btnAddQueue_Click(object sender, EventArgs e)
{
UndoBranch.Add(queueList.Items.Cast <string>().ToList());
foreach (string ProgramName in selectInstallList.SelectedItems)
{
if (!queueList.Items.Contains(ProgramName))
{
queueList.Items.Add(ProgramName);
}
}
}
/*
* MoveDown:
* Move items down in the queue list
*/
private void btnMoveDown_Click(object sender, EventArgs e)
{
//Make sure the user has at least one itme selected.
//Make sure the item is not the last item in the list.
//If all criteria are met, swap the item with the one below it
if (queueList.SelectedIndices.Count < 1)
{
MessageBox.Show("WARNING:\nYou must select a queued\nitem to use this feature.");
}
// if the last item is selected you cannot move down
else if (queueList.SelectedIndices.Contains(queueList.Items.Count - 1))
{
return;
}
else
{
// set undo poin
UndoBranch.Add(queueList.Items.Cast <string>().ToList());
List <int> SelectedIndecies = queueList.SelectedIndices.Cast <int>().ToList();
// loop through the selected items backwards in order to move them all down by one
SelectedIndecies.Reverse();
foreach (int from in SelectedIndecies)
{
int to = from + 1;
var temp = queueList.Items[to];
queueList.Items[to] = queueList.Items[from];
queueList.Items[from] = temp;
}
// select only the moved items
queueList.SetSelected(queueList.SelectedIndex, false);
foreach (int i in SelectedIndecies)
{
queueList.SetSelected(i + 1, true);
}
}
}