由网友(腼腆▓小青年§])分享简介：我序列化对象到XML在C＃中，我想序列化I'm serializing an object to xml in c# and I would like to serialize public String Marker { get; set; }到在字符串标记没有价值。when...

我序列化对象到XML在C＃中，我想序列化

I'm serializing an object to xml in c# and I would like to serialize

public String Marker { get; set; }

到

<Marker></Marker>

在字符串标记没有价值。

when string Marker has no value.

现在，我得到

<Marker />

为标记==的String.Empty 和空无标记节点。 我怎样才能得到呢？

for Marker == string.Empty and no Marker node for null. How can I get this ?

推荐答案

您可以轻松燮preSS的＆LT;标记＆GT; 元素如果标记属性为null。只需添加一个 ShouldSerializeMarker（）方法：

You can easily suppress the <Marker> element if the Marker property is null. Just add a ShouldSerializeMarker() method:

public bool ShouldSerializeMarker()
{
    return Marker != null;
}

这将是由的XmlSerializer 自动调用来决定是否要在输出中包含的元素。

It will be called automatically by XmlSerializer to decide whether or not to include the element in the output.

至于使用的扩展形式的＆LT;标记＆GT; 元素时字符串是空的，有没有简单的方法来做到这一点（你的可以大概写自己的的XmlWriter ，但是这将是一个痛苦）。但无论如何，它没有任何意义，因为＆LT;标记/＆GT; 和＆LT;标记＆GT;＆LT; /标记＆GT; 有相同的意思。

As for using the expanded form of the <Marker> element when the string is empty, there's no easy way to do it (you could probably write your own XmlWriter, but it would be a pain). But anyway it doesn't make sense, because <Marker /> and <Marker></Marker> have exactly the same meaning.