void OnPointerReleased(object sender, PointerRoutedEventArgs e)
{
if (e.IsTouch())
{
// 触摸模式只支持列排序
if (_pointerID == e.Pointer.PointerId)
{
ReleasePointerCapture(e.Pointer);
_pointerID = null;
ChangedSortState();
}
return;
}
if (_isDragging)
{
if (_dragTgtCol != null)
{
// 拖拽结束
_owner.FinishedDrag();
Cols cols = _owner.Lv.Cols;
int index = cols.IndexOf(_dragTgtCol);
cols.Remove(Col);
cols.Insert(index, Col);
cols.Invalidate();
}
else
{
// 列排序
ChangedSortState();
}
}
ResetMouseState();
}
internal Col GetDragTargetCol(Col p_col, double p_pos)
{
int index = -1;
Col col;
Cols cols = Lv.Cols;
for (int i = 0; i < cols.Count; i++)
{
col = cols[i];
if (p_pos >= col.Left && p_pos <= col.Left + col.Width)
{
index = i;
break;
}
}
// 未找到或还在原来列
if (index == -1 || (col = cols[index]) == p_col)
{
if (_lastDrag > -1)
{
_lastDrag = -1;
Children.Remove(_tbDrag);
_tbDrag = null;
}
return(null);
}
int toIndex = index > cols.IndexOf(p_col) ? index + 1 : index;
if (toIndex != _lastDrag)
{
_lastDrag = toIndex;
if (_tbDrag == null)
{
_tbDrag = new TextBlock
{
Text = "\uE018",
FontFamily = Res.IconFont,
FontSize = 20,
Foreground = Res.RedBrush,
VerticalAlignment = VerticalAlignment.Center,
};
Children.Add(_tbDrag);
}
else
{
InvalidateArrange();
}
}
return(cols[index]);
}
public override CellRange GetMergedRange(int row, int col, bool clip)
{
// save index of ID column to use in merging logic
_colIndex = Cols.IndexOf("ID");
// set flag to use custom data when merging
_doingMerge = true;
// call base class merging logic (will retrieve data using GetData method)
CellRange cellRange = base.GetMergedRange(row, col, clip);
// reset flag so GetData behaves as usual
_doingMerge = false;
// return the merged range
return(cellRange);
}