/// <summary>
/// Gets the minimum value of a property in a mongodb collections that is satisfying the filter.
/// </summary>
/// <typeparam name="TDocument">The document type.</typeparam>
/// <typeparam name="TValue">The type of the value used to order the query.</typeparam>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="minValueSelector">A property selector to order by ascending.</param>
/// <param name="partitionKey">An optional partition key.</param>
public virtual TValue GetMinValue <TDocument, TValue>(Expression <Func <TDocument, bool> > filter, Expression <Func <TDocument, TValue> > minValueSelector, string partitionKey = null)
where TDocument : IDocument <TKey>
{
return(MongoDbReader.GetMinValue <TDocument, TKey, TValue>(filter, minValueSelector, partitionKey));
}