/// <summary>
/// 解析一种枚举的一个选项
/// </summary>
/// <typeparam name="E">枚举类型</typeparam>
/// <param name="item">需要解析的选项</param>
/// <returns>解析结果</returns>
public static EnumInfo AnalysisItem <E>(E item)
{
Type type = typeof(E);
if (!type.IsEnum)
{
return(null);
}
string item_name = item.ToString();
foreach (int ival in Enum.GetValues(type))
{
string name = Enum.GetName(type, ival);
if (item_name != name)
{
continue;
}
FieldInfo info = type.GetField(name);
ExplainAttribute exp = ExplainAttribute.Extract(info);
return(new EnumInfo()
{
Name = name,
IntValue = ival,
Explain = exp.Text,
});
}
return(null);
}
/// <summary>
/// 获得解释特性信息
/// </summary>
public static ExplainAttribute Extract(MemberInfo memberInfo)
{
ExplainAttribute explainAttr = ReflexHelp.AttributeFindOnly <ExplainAttribute>(memberInfo);
if (CheckData.IsObjectNull(explainAttr))
{
explainAttr = new ExplainAttribute(ERROR_EXPLAIN_TEXT);
}
return(explainAttr);
}
/// <summary>
/// 解析一种枚举的所有选项
/// </summary>
/// <param name="type">枚举类型</param>
/// <returns>解析结果</returns>
public static EnumInfo[] AnalysisList(Type type)
{
if (!type.IsEnum)
{
return(new EnumInfo[] { });
}
List <EnumInfo> list = new List <EnumInfo>();
foreach (int ival in Enum.GetValues(type))
{
string name = Enum.GetName(type, ival);
FieldInfo info = type.GetField(name);
ExplainAttribute exp = ExplainAttribute.Extract(info);
list.Add(new EnumInfo()
{
Name = name,
IntValue = ival,
Explain = exp.Text,
});
}
return(list.ToArray());
}
