public static ExcelFormatter GetFormat(Type type)
{
ExcelFormatter formatter;
if (!_formatsByType.TryGetValue(type, out formatter))
{
if (type.IsEnum)
{
formatter = new ExcelFormatter
{
SourceType = type,
TargetType = typeof(string),
DefaultValue = "",
GetValue = x => String.Join(", ", x.Values.Select(DescriptionExtractor.GetDescription)),
StringFormat = null
};
}
else
{
formatter = new ExcelFormatter
{
SourceType = type,
TargetType = typeof(string),
DefaultValue = "",
GetValue = x => "#FORMATERROR#",
StringFormat = null
};
}
_formatsByType.Add(type, formatter);
}
return(formatter);
}
public static ExcelFormatter Add <TSource, TTarget>(Func <TSource[], TTarget> getValue, TTarget defaultValue, string stringFormat)
{
ExcelFormatter format = new ExcelFormatter
{
SourceType = typeof(TSource),
TargetType = typeof(TTarget),
DefaultValue = defaultValue,
StringFormat = stringFormat,
GetValue = x => x == null ? defaultValue : getValue(x.Values.OfType <TSource>().ToArray())
};
_formatsByType.Add(format.SourceType, format);
return(format);
}