/// <summary>
/// Stores the selected rows.
/// </summary>
/// <param name="view">The grid view to store the selection for.</param>
/// <remarks>This method will also store the selected cells when GridMultiSelectMode is set to CellSelect.</remarks>
public void StoreSelection(GridView view)
{
//Clear any previously selected rows.
SavedSelectionList.Clear();
//Clear any previously selected cells.
CellSelection.Clear();
//Get the selected rows.
var selectedRows = view.GetSelectedRows();
//Are there any selected rows? If not, then we just have a single focused but not selected row.
var focusedRowStored = false;
if (selectedRows != null)
{
//Go through each selected row in the grid view.
foreach (var selectedRowHandle in selectedRows)
{
//Add the selected row to the selection list.
var dataRowHandle = StoreSelectedRow(view, selectedRowHandle, selectedRowHandle == view.FocusedRowHandle, true);
// If focused row have been stored
if (!focusedRowStored && selectedRowHandle == view.FocusedRowHandle)
{
focusedRowStored = true;
}
//If GridMultiSelectMode is set to CellSelect then store selected cells.
if (view.OptionsSelection.MultiSelectMode == GridMultiSelectMode.CellSelect)
{
//Get the selected columns for the row handle.
var columns = view.GetSelectedCells(dataRowHandle);
var columnNames = new string[columns.Length];
//Add the column names to the array.
for (var index = 0; index < columns.Length; index++)
{
columnNames[index] = columns[index].FieldName;
}
//Add or update the the cell selection for the row.
CellSelection[view.GetRowCellValue(dataRowHandle, _descriptor.KeyColumn)] = columnNames;
}
}
}
// Add the focused row to the selection.
if (!focusedRowStored)
{
StoreSelectedRow(view, view.FocusedRowHandle, true, false);
}
}
/// <summary>
/// Adds the specified row to the selection list.
/// </summary>
/// <param name="view">The grid view that the row belongs to.</param>
/// <param name="rowHandle">The row handle of the row to add.</param>
/// <returns>Returns the row handle that was added.</returns>
private int StoreSelectedRow(GridView view, int rowHandle, bool focused, bool selected)
{
// Create row info object.
RowInfo rowInfo;
rowInfo.Level = view.GetRowLevel(rowHandle);
rowInfo.SelectionType = focused ? SelectionType.Focus : SelectionType.None;
rowInfo.SelectionType |= selected ? SelectionType.Selection : SelectionType.None;
// If the handle is a group row handle then replace rowHandle with the group row handles data row handle.
if (rowHandle < 0) // group row
{
rowHandle = view.GetDataRowHandleByGroupRowHandle(rowHandle);
}
// Store the value of the row handle in the row info object.
rowInfo.Value = view.GetRowCellValue(rowHandle, _descriptor.KeyColumn);
// Add the row info to the selection list.
SavedSelectionList.Add(rowInfo);
// Return the row handle.
return(rowHandle);
}
