/// <summary>
/// gets the value for the specified group and category
/// </summary>
/// <param name="category">the category name</param>
/// <param name="group">the group name</param>
/// <returns></returns>
public double GetValue(string category, string group)
{
return(mDataSource.GetValue(category, group));
}
/// <summary>
/// gets the value for the specified category
/// </summary>
/// <param name="category">the category name</param>
/// <param name="group">the group name</param>
/// <returns></returns>
public double GetValue(string category)
{
return(mDataSource.GetValue(category, "Pie"));
}