/// <summary>
/// Invokes event
/// </summary>
protected virtual void OnCellSelection(CellElement oldCell, CellElement newCell)
{
if (CellSelection != null)
{
CellSelection(oldCell, newCell);
}
}
/// <summary>
/// Dispatches appropriate events and performs row selection in the grid
/// </summary>
public virtual void DispatchCellSelection(CellElement cell)
{
foreach (var col in m_Grid.m_Columns)
{
col.m_HasCellSelection = false;
}
if (m_Grid.CellSelectionAllowed)
{
m_HasCellSelection = true;
OnCellSelection(m_Grid.SelectedCell, cell);
}
m_Grid.DispatchCellSelection(cell);
}
private void rebuildAllCells(bool force)//true to force rebuild inspite of Begin/End Change
{
if (!force && m_BatchChangeCounter > 0)
{
m_BatchChangeNeedsRebuild = true;
return;
}
try
{
if (m_CellView == null)
{
return;
}
if (m_Disposed)
{
return;
}
//forget all previously selected cells
m_SelectedCell = null;
m_CommentElement = null;
m_CellView.DeleteAllElements();
buildCells();
}
finally
{
if (!force)
{
m_BatchChangeNeedsRebuild = false;
}
}
}
/// <summary>
/// Dispatches appropriate events and performs row selection in the grid
/// </summary>
public virtual void DispatchCellSelection(CellElement cell)
{
if (cell.Row != null)
{
if (!m_MultiSelect)
{
if ((Control.ModifierKeys & Keys.Control) > 0)
{
UnSelectRow(cell.Row);
}
else
{
SelectRow(cell.Row);
}
}
else //multiselect
{
if ((Control.ModifierKeys & Keys.Shift) > 0)
{
if (!SelectedRows.Any())
{
SelectRow(cell.Row);
return;
}
var first = m_RowMap.FindIndex(re => re.Row == SelectedRows.First());
var last = m_RowMap.FindIndex(re => re.Row == SelectedRows.Last());
var cur = m_RowMap.FindIndex(re => re.Row == cell.Row);
if (cur < 0)
{
return;
}
UnSelectAllRows();
if (last <= cur)
{
for (var i = last; i <= cur; ++i)
{
SelectRow(m_RowMap[i].Row);
}
}
else if (cur <= first)
{
for (var i = cur; i <= first; ++i)
{
SelectRow(m_RowMap[i].Row);
}
}
}
else if (!m_MultiSelectWithCtrl || (Control.ModifierKeys & Keys.Control) > 0)
{
if (IsRowSelected(cell.Row))
{
UnSelectRow(cell.Row);
}
else
{
SelectRow(cell.Row);
}
}
else
{
UnSelectAllRows();
SelectRow(cell.Row);
}
}
}
if (m_CellSelectionAllowed)
{
try
{
rebuildAllCells(true);//must force the rebuild or event will be invalid
OnCellSelection(m_SelectedCell, cell);
}finally{
m_SelectedCell = cell;
}
}
}
internal ColumnResizeElement(CellView host, CellElement headerCell) : base(host)
{
m_HeaderCell = headerCell;
m_Grid = m_HeaderCell.Column.Grid;
}
