/// <summary>
/// Converts an <see cref="DataGridCell"/> to its row index.
/// </summary>
/// <param name="value">Value to be converted.</param>
/// <param name="targetType">Type to convert to.</param>
/// <param name="parameter">Optional conversion parameter.</param>
/// <param name="culture">Globalization info.</param>
/// <returns>The index of the cell. If none found, will return -1.</returns>
public Object Convert(Object value, Type targetType, Object parameter, CultureInfo culture)
{
DataGridCell item = value as DataGridCell;
DataGridRow dataGridRow = item?.Ancestors().OfType <DataGridRow>().FirstOrDefault();
DataGrid dataGrid = dataGridRow?.Ancestors().OfType <DataGrid>().FirstOrDefault();
Int32 index = dataGrid?.ItemContainerGenerator.IndexFromContainer(dataGridRow) ?? -1;
return(index.ToString());
}
