/// <summary>
/// Prevents user from selecting a row that shouldn't be selected e.g. the Counts row
/// </summary>
/// <param name="grid"></param>
/// <param name="firstSelectedRowFound">Row that user is trying to select</param>
static void ClearSelectionIfRowIsNotSelectable(DataGrid grid, IStatisticsTableRowViewModel firstSelectedRowFound)
{
if (firstSelectedRowFound != null && !firstSelectedRowFound.IsSelectable)
{
grid.SelectedCells.Clear();
}
}
/// <summary>
/// Prevents User from selecting items from different Rows, as it doesn't make sense to analyse them together
/// </summary>
/// <param name="grid"></param>
static void LimitSelectionToOneRow(DataGrid grid)
{
IStatisticsTableRowViewModel firstSelectedRowFound = null;
foreach (DataGridCellInfo gridCellInfo in grid.SelectedCells)
{
if (firstSelectedRowFound == null)
{
firstSelectedRowFound = (IStatisticsTableRowViewModel)gridCellInfo.Item;
}
else if (IsOnAnotherRow(gridCellInfo, firstSelectedRowFound))
{
grid.SelectedCells.Remove(gridCellInfo);
}
}
ClearSelectionIfRowIsNotSelectable(grid, firstSelectedRowFound);
}
static bool IsOnAnotherRow(DataGridCellInfo gridCellInfo, IStatisticsTableRowViewModel firstFoundSelectedRow)
{
return(gridCellInfo.Item != firstFoundSelectedRow);
}
