/// <summary>
/// Gets an array of dimensions of the DataSet.
/// </summary>
/// <returns>An array of <see cref="Dimension"/>.</returns>
/// <remarks>
/// If the schema corresponds to the proposed version of the DataSet and
/// some dimension differs for different variables, in the returning array the dimension
/// has length equal to <c>-1</c>.
/// </remarks>
public Dimension[] GetDimensions()
{
if (vars == null || vars.Length == 0) return new Dimension[0];
Dictionary<string, Dimension> dims = new Dictionary<string, Dimension>();
foreach (var v in vars)
foreach (var vd in v.Dimensions)
{
Dimension dim;
if (dims.TryGetValue(vd.Name, out dim))
dim.Length = -1;
else
dim = vd;
dims[vd.Name] = vd;
}
Dimension[] dimsArr = new Dimension[dims.Count];
dims.Values.CopyTo(dimsArr, 0);
return dimsArr;
}