void writer_OnMemberWriting(object sender, WriteMemberEventArgs e)
{
var writer = sender as IWriter;
if (writer.CurrentObject == this && e.Member.Name == "_Value")
{
e.Type = Type;
writer.OnMemberWriting -= new EventHandler<WriteMemberEventArgs>(writer_OnMemberWriting);
}
}
/// <summary>写入对象成员</summary>
/// <param name="name">成员名字</param>
/// <param name="value">要写入的对象</param>
/// <param name="type">要写入的成员类型</param>
/// <param name="index">成员索引</param>
/// <param name="callback">处理成员的方法</param>
/// <returns>是否写入成功</returns>
public Boolean WriteMember(String name, Object value, Type type, Int32 index, WriteObjectCallback callback)
{
if (callback == null)
{
callback = WriteMember;
}
// 写入成员前
WriteMemberEventArgs e = null;
if (OnMemberWriting != null)
{
e = new WriteMemberEventArgs(name, value, type, index, callback);
OnMemberWriting(this, e);
// 事件处理器可能已经成功写入对象
if (e.Success)
{
return(true);
}
// 事件里面有可能改变了参数
value = e.Value;
type = e.Type;
index = e.Index;
callback = e.Callback;
}
var rs = OnWriteMember(name, value, type, index, callback);
// 写入成员后
if (OnMemberWrited != null)
{
e = new WriteMemberEventArgs(name, value, type, index, callback);
e.Success = rs;
OnMemberWrited(this, e);
// 事件处理器可以影响结果
rs = e.Success;
}
return(rs);
}
/// <summary>写入对象成员</summary>
/// <param name="value">要写入的对象</param>
/// <param name="type">要写入的成员类型</param>
/// <param name="member">成员</param>
/// <param name="index">成员索引</param>
/// <param name="callback">处理成员的方法</param>
/// <returns>是否写入成功</returns>
public Boolean WriteMember(Object value, Type type, IObjectMemberInfo member, Int32 index, WriteObjectCallback callback)
{
if (callback == null)
{
callback = WriteMember;
}
IObjectMemberInfo old = CurrentMember;
CurrentMember = member;
#if !DEBUG
try
#endif
{
// 写入成员前
WriteMemberEventArgs e = null;
if (OnMemberWriting != null)
{
e = new WriteMemberEventArgs(value, type, member, index, callback);
OnMemberWriting(this, e);
// 事件处理器可能已经成功写入对象
if (e.Success)
{
CurrentMember = old;
return(true);
}
// 事件里面有可能改变了参数
value = e.Value;
type = e.Type;
member = e.Member;
index = e.Index;
callback = e.Callback;
}
Boolean rs = OnWriteMember(value, type, member, index, callback);
// 写入成员后
if (OnMemberWrited != null)
{
e = new WriteMemberEventArgs(value, type, member, index, callback);
e.Success = rs;
OnMemberWrited(this, e);
// 事件处理器可以影响结果
rs = e.Success;
}
CurrentMember = old;
return(rs);
}
#if !DEBUG
catch (Exception ex)
{
throw new XSerializationException(member, ex);
}
#endif
}
void writer_OnMemberWriting(object sender, WriteMemberEventArgs e)
{
if (e.Member.Name == "_Value") e.Type = Type;
}