private static Entities.Grid.GridRow GetRow(Entities.Grid.GridRow row, RowMovement direction)
{
if (row is null)
{
throw new ArgumentNullException(nameof(row));
}
var allRows = row.Grid.AllRows;
var rowIndex = allRows.IndexOf(row);
if ((direction == RowMovement.Up && rowIndex == 0) || (direction == RowMovement.Down && rowIndex == allRows.Count - 1))
{
return(null);
}
var newIndex = direction == RowMovement.Up ? rowIndex - 1 : rowIndex + 1;
Entities.Grid.GridRow newRow;
do
{
newRow = allRows[(direction == RowMovement.Up ? newIndex-- : newIndex++)];
} while (!newRow.Visible && newIndex >= 0 && newIndex <= allRows.Count - 1);
if (!newRow.Visible)
{
return(null);
}
return(newRow);
}
public static Entities.Grid.GridRow GetNextRow(this Entities.Grid.GridRow row)
{
if (row is null)
{
throw new ArgumentNullException(nameof(row));
}
return(GetRow(row, RowMovement.Down));
}
