/// <summary>
/// 获取枚举实例
/// </summary>
/// <typeparam name="TEnum">枚举类型</typeparam>
/// <param name="member">成员名或值,范例:Enum1枚举有成员A=0,则传入"A"或"0"获取 Enum1.A</param>
public static TEnum ToEnum <TEnum>(this string member)
{
string value = member.ToSafeString();
if (string.IsNullOrWhiteSpace(value))
{
if (typeof(TEnum).IsGenericType)
{
return(default(TEnum));
}
throw new ArgumentNullException(nameof(member), $"待转换枚举成员值有误");
}
var type = H_Common.GetType <TEnum>();
if (!Enum.IsDefined(type, value))
{
throw new ArgumentException($"待转换枚举成员值 {member} 有误", nameof(member));
}
return((TEnum)Enum.Parse(type, value));
}
/// <summary>
/// 通用泛型转换
/// </summary>
/// <typeparam name="T">目标类型</typeparam>
/// <param name="input">输入值</param>
public static T To <T>(object value)
{
if (value == null)
{
return(default(T));
}
if (value is string && string.IsNullOrWhiteSpace(value.ToString()))
{
return(default(T));
}
Type type = H_Common.GetType <T>();
var typeName = type.Name.ToLower();
try
{
if (typeName == "string")
{
return((T)(object)value.ToString());
}
if (typeName == "guid")
{
return((T)(object)new Guid(value.ToString()));
}
if (type.IsEnum)
{
return(H_Convert.ToEnum <T>(value.ToString()));
}
if (value is IConvertible)
{
return((T)Convert.ChangeType(value, type));
}
return((T)value);
}
catch
{
return(default(T));
}
}