相关疑难解决方法(0)

我正在使用Tridion 2011中的核心服务更新组件.

示例代码如下,

string COMPONENT_URI = "tcm:8-674";
string SCHEMA_URI = "tcm:8-426-8";

ComponentData component = client.TryCheckOut(COMPONENT_URI, null) as ComponentData;

try
{
    Response.Write("<BR>" + component.Content);
    XDocument xdoc = XDocument.Parse(component.Content);
    var element = xdoc.Elements("first").Single();
    element.Value = "updated";
    xdoc.Save(component.Content);
    client.Save(component, null);
    Response.Write("<BR"+"SAVED");
}
catch (Exception ex)
{
    Response.Write("Unable to save comp" + ex.Message);
}

client.CheckIn(COMPONENT_URI, null);

我得到以下异常:

 Unable to save compSequence contains no elements 

细节:

first - 组件中字段的名称

对此有任何帮助吗？

谢谢