/// <summary>
/// 复杂类型为键值对
/// </summary>
/// <param name="instance">实例</param>
/// <param name="options">选项</param>
/// <returns></returns>
private IEnumerable <KeyValuePair <string, string> > FormatAsComplex(object instance, FormatOptions options)
{
return
(from p in PropertyDescriptor.GetProperties(instance.GetType())
where p.IsSupportGet && p.IgnoreSerialized == false
let value = p.GetValue(instance)
let opt = options.CloneChange(p.DateTimeFormat)
select this.FormatAsSimple(p.AliasName, value, opt));
}
/// <summary>
/// 解析context的Data的属性
/// 返回多个属性组成的ConvertContext
/// </summary>
/// <param name="context">转换上下文</param>
/// <returns></returns>
protected IEnumerable <ConvertContext> GetPropertiesContexts(ConvertContext context)
{
return
(from p in PropertyDescriptor.GetProperties(context.DataType)
where p.IsSupportGet && p.IgnoreSerialized == false
let value = p.GetValue(context.Data)
where (p.IgnoreWhenNull && value == null) == false
let options = context.Options.CloneChange(p.DateTimeFormat)
select new ConvertContext(p.Name, value, context.Depths, options));
}
/// <summary>
/// 执行转换
/// </summary>
/// <param name="context">转换上下文</param>
/// <returns></returns>
public override IEnumerable <KeyValuePair <string, string> > Invoke(ConvertContext context)
{
// 无条件解析为属性
// 因为其它转换器都无法解析此类型
return
(from p in PropertyDescriptor.GetProperties(context.Type)
where p.IsSupportGet && p.IgnoreSerialized == false
let value = p.GetValue(context.Value)
let options = context.Options.CloneChange(p.DateTimeFormat)
select this.GetKeyValuePair(p.Name, value, options)); // 只拆解第一层属性则不用递归
}
/// <summary>
/// 执行转换
/// </summary>
/// <param name="context">转换上下文</param>
/// <returns></returns>
public override IEnumerable <KeyValuePair <string, string> > Invoke(ConvertContext context)
{
var options = context.Options;
if (options == null)
{
options = new FormatOptions();
}
return
(from p in PropertyDescriptor.GetProperties(context.Descriptor.Type)
where p.IsSupportGet && p.IgnoreSerialized == false
let value = p.GetValue(context.Value)
let opt = options.CloneChange(p.DateTimeFormat)
select this.ToKeyValuePair(p.AliasName, value, opt)); // 只拆解第一层
}
