public OpenProjectFileForm(IEnumerable <FileListObject> allObjects)
{
_allObjects = allObjects;
InitializeComponent();
SelectedListObject = null;
MouseDown += (sender, e) =>
{
if (e.ChangedButton == MouseButton.Left)
{
this.DragMove();
}
};
txtSearch.Focus();
txtSearch.TextChanged += (sender, e) => UpdateVisibleObjects();
UpdateVisibleObjects();
}
protected override void OnPreviewKeyDown(KeyEventArgs e)
{
if (e.Key == Key.Escape)
{
e.Handled = true;
Close();
}
bool internal_handled = false;
if (lbItems.Items.Count > 0)
{
if (e.Key == Key.Down)
{
if (lbItems.SelectedIndex == -1)
{
lbItems.SelectedIndex = 0;
}
else
{
lbItems.SelectedIndex = (lbItems.SelectedIndex + 1) % lbItems.Items.Count;
}
internal_handled = true;
}
else if (e.Key == Key.Up)
{
if (lbItems.SelectedIndex != -1)
{
int index = lbItems.SelectedIndex - 1;
if (index < 0)
{
index = lbItems.Items.Count - 1;
}
lbItems.SelectedIndex = index;
}
else
{
lbItems.SelectedIndex = lbItems.Items.Count - 1;
}
internal_handled = true;
}
else if (e.Key == Key.Enter)
{
if (lbItems.SelectedIndex != -1)
{
SelectedListObject = (FileListObject)lbItems.SelectedItem;
e.Handled = true;
Close();
return;
}
}
}
if (internal_handled)
{
base.OnPreviewKeyDown(e);
return;
}
lbItems.SelectedIndex = lbItems.Items.Count > 0 ? 0 : -1;
base.OnPreviewKeyDown(e);
txtSearch.Focus();
}