/// <summary>
/// Whether or not the given value is present for the field represented by the field generator.
/// </summary>
/// <param name="value">The value to check is selected</param>
/// <param name="fieldGenerator">The field generator wrapping the field</param>
/// <returns>Whether or not the value is selected</returns>
public static bool IsSelected <TModel, T>(this IFieldGenerator <TModel, T> fieldGenerator, object value)
{
if (HasEnumerableValues(fieldGenerator))
{
return(GetEnumerableValues(fieldGenerator).Contains(value));
}
var val = fieldGenerator.GetValue();
if (val == null)
{
return(value == null);
}
if (HasMultipleEnumValues(fieldGenerator))
{
return((Convert.ToInt64(fieldGenerator.GetValue()) & Convert.ToInt64(value)) != 0);
}
return(val.Equals(value));
}
protected IEnumerable <object> GetValues()
{
return((((IEnumerable)FieldGenerator.GetValue()) ?? new object[] {}).Cast <object>());
}
/// <summary>
/// Returns the enumerated values of a field that is an <see cref="IEnumerable{T}"/>.
/// </summary>
/// <param name="fieldGenerator">The field generator wrapping the field</param>
/// <returns>The enumerated values of the field</returns>
public static IEnumerable <object> GetEnumerableValues <TModel, T>(this IFieldGenerator <TModel, T> fieldGenerator)
{
return((((IEnumerable)fieldGenerator.GetValue()) ?? new object[] { }).Cast <object>());
}