internal bool UpdateRowPartLayout(object listItem, ListViewItem listViewItem, bool trackUpdate = true)
{
if (listViewItem == null)
{
if (this.DataGrid.ItemFixHeight == 0.0 && this.DataGrid.IsVirtualizing)
{
this.DirtyItems.Add(listItem);
if (trackUpdate)
{
this.UpdateLayout();
}
}
return(false);
}
else
{
if (!listViewItem.IsLoaded)
{
listViewItem.ApplyTemplate();
}
GridViewRowPresenter _gridPresenter = ElementHelper.FindVisualChild <GridViewRowPresenter>(listViewItem);
UpdateRowArea(_gridPresenter);
return(true);
}
}
void OnLoaded(object sender, RoutedEventArgs e)
{
// since the element is not a known TemplateChild,
// we have to modify after all is loaded
Thumb _thumb = ElementHelper.FindVisualChild <Thumb>(this, "Thumb");
if (_thumb != null)
{
_thumb.FocusVisualStyle = null;
//_thumb.Style = sThumbStyle;
}
}
internal void UpdateRowArea(GridViewRowPresenter gridPresenter)
{
if (gridPresenter == null)
{
// happens due to virutalization
return;
}
ContentPresenter _cellContent = null;
FrameworkElement _cellElement = null;
for (int i = 0; i < gridPresenter.Columns.Count; i++)
{
_cellContent = VisualTreeHelper.GetChild(gridPresenter, i) as ContentPresenter;
_cellElement = ElementHelper.FindVisualChild <FrameworkElement>(_cellContent);
if (_cellElement != null)
{
_cellElement.InvalidateMeasure();
_cellElement.InvalidateArrange();
_cellElement.UpdateLayout();
}
}
}
void OnPreviewMouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if (this.Column == null)
{
return;
}
if (this.Column.ViewType == EViewType.CheckBox)
{
e.Handled = true;
return;
}
if (this.Column.EditType == EEditType.CellTemplate && this.IsEditMode)
{
e.Handled = false;
return;
}
if (this.Column.CellContentIsClickable)
{
// let the click trough on the first button found
Button _button = ElementHelper.FindVisualChild <Button>(this);
if (_button != null)
{
Point _point = e.GetPosition((UIElement)sender);
HitTestResult _hitResult = VisualTreeHelper.HitTest(this, _point);
if (_hitResult != null)
{
Visual _hitElement = ElementHelper.FindVisualChild <Visual>(_button);
e.Handled = !(_hitElement == _hitResult.VisualHit);
}
// this way we could raise the button click event
//_button.RaiseEvent( new RoutedEventArgs(Button.ClickEvent));
//ButtonAutomationPeer _peerButton = new ButtonAutomationPeer(_button);
//IInvokeProvider _invokeProv = _peerButton.GetPattern(PatternInterface.Invoke) as IInvokeProvider;
// _invokeProv.Invoke();
}
}
else
{
e.Handled = true;
if (this.Column.IsEditable)
{
long _ticksPassed = DateTime.Now.Ticks - m_lastTicks;
if (_ticksPassed < 50000000)
{
m_lastTicks = 0;
this.Column.DataGrid.SetEditCell(this.Column, (FrameworkElement)this);
return;
}
}
m_lastTicks = DateTime.Now.Ticks;
}
}