/// <summary>
/// 获取需要保存到数据库的属性
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public static JsonMemberAttribute GetJsonMember(this Type type, string propertyName)
{
lock (JsonMemberCache)
{
if (JsonMemberCache.ContainsKey(type))
{
return(JsonMemberCache[type].First(p => p.Name == propertyName));
}
else
{
var tpinfos = type.GetProperties();
List <JsonMemberAttribute> rpinfos = new List <JsonMemberAttribute>();
for (int i = tpinfos.Length - 1; i >= 0; i--)
{
PropertyInfo pinfo = tpinfos[i];
var attr = pinfo.GetCustomAttributes(typeof(JsonMemberAttribute), true);
if (attr != null && attr.Length >= 1)
{
JsonMemberAttribute dpa = attr[0] as JsonMemberAttribute;
dpa.PropertyType = pinfo.PropertyType;
dpa.PropertyInfo = pinfo;
rpinfos.Add(dpa);
}
}
rpinfos = rpinfos.OrderBy(p => p.ShowIndex).ToList();
JsonMemberCache[type] = rpinfos;
return(rpinfos.First(p => p.Name == propertyName));
}
}
}
public static object GetValueByJsonPropertyName(this object instance, string propertyName)
{
string[] ts = propertyName.Split('.');
JsonMemberAttribute result = null;
object tempValue = instance;
for (int i = 0; i < ts.Length; i++)
{
string tpn = ts[i];
result = tempValue.GetType().GetJsonMember(tpn);
tempValue = result.GetValue(tempValue, false);
}
return(tempValue);
}
public static void SetValueByJsonPropertyName(this object instance, string propertyName, object value)
{
string[] ts = propertyName.Split('.');
JsonMemberAttribute resultPinfo = null;
object tempValue = instance;
object parentObject = null;
for (int i = 0; i < ts.Length; i++)
{
string tpn = ts[i];
resultPinfo = tempValue.GetType().GetJsonMember(tpn);
parentObject = tempValue;
tempValue = resultPinfo.GetValue(tempValue, false);
}
resultPinfo.SetValue(parentObject, value);
}
