private void AllSelectCheckBox_OnClick(object sender, RoutedEventArgs e)
{
var isSelected = AllSelectCheckBox.IsChecked ?? false;
if (isSelected)
{
CleanUpListBox.SelectAll();
}
else
{
CleanUpListBox.UnselectAll();
}
}
/// <summary>
/// Shift多选
/// </summary>
/// <param name="selectedListBoxItem"></param>
private void SettleSelectedItemsForShift(ListBoxItem selectedListBoxItem)
{
int currentSelectIndex = CleanUpListBox.ItemContainerGenerator.IndexFromContainer(selectedListBoxItem);
if (_previousSelectIndexForEditing >= 0 && currentSelectIndex >= 0)
{
int startNum = _previousSelectIndexForEditing;
int endNum = currentSelectIndex;
//Shift多选，删除其余选中
CleanUpListBox.UnselectAll();
//按顺序添加SelectedItems--因shift多选,listBox自带的选中项列表顺序混乱。
bool isAssending = endNum - startNum > 0;
if (isAssending)
{
for (int i = startNum; i <= endNum; i++)
{
//多选模式下，当前MouseDown之后会触发SelctionChanged
if (i == currentSelectIndex)
{
continue;
}
CleanUpListBox.SelectedItems.Add(CleanUpListBox.Items[i]);
}
}
else
{
for (int i = startNum; i >= endNum; i--)
{
//多选模式下，当前MouseDown之后会触发SelctionChanged
if (i == currentSelectIndex)
{
continue;
}
CleanUpListBox.SelectedItems.Add(CleanUpListBox.Items[i]);
}
}
}
}