Question

我试图序列化一个对象的所有属性，默认情况下无法序列化（对象是SPGroup类型，它是密封的，没有空的构造函数）所以我复制了所有的属性从我将序列化的对象。

我使用下面的代码从属性中获取数据：

private dynamic GetSerializableProperties<T>(T objToCopy, dynamic dataContainer = null)
{
    // Copy the properties into dataContainer, if it's not set
    if (Object.ReferenceEquals(null, dataContainer))
    {
        dataContainer = new ExpandoObject() as IDictionary<string, object>;
    }
    // copy base class properties.
    var objToCopyType = objToCopy.GetType();
    foreach (PropertyInfo propertyInfo in objToCopyType.GetProperties())
    {

        // Get the correct property
        PropertyInfo propertyInfoValue = objToCopyType.GetProperty(propertyInfo.Name);
        // Get the value of the property
        var value = objToCopyType.GetProperty(propertyInfo.Name).GetValue(objToCopy, null); // propertyInfoValue.GetValue(objToCopy, null);
        // Create the ID for the dictionary, set to name/random string for easy viewing
        string propertyKeyName = CreateSafeName(dataContainer, propertyInfo.Name);

        // Create a property with the required name then add data
        ((IDictionary<String, Object>)dataContainer)[propertyInfo.Name] = new DataContainer(propertyInfo.Name, propertyInfo, propertyInfoValue, value);
    }
    return dataContainer;
}

当我查看我创建的动态对象时，我会看到我想要的所有属性，即属性用户包含用户列表。下一步是序列化这个错误发生的数据。

dynamic serializableObject = GetSerializableProperties<T>(serializableObjectx);
var test = serializableObject as IDictionary<string, Object>;
var test2 = test.Values.ElementAt(2) as DataContainer; // This property contains a property that is causing the issue I believe
var obj = JsonConvert.SerializeObject(test2, Newtonsoft.Json.Formatting.Indented);

我得到的错误是：

Cannot evaluate expression because the current thread is in a stack overflow state.

我认为此评论下面的代码需要更改：

var value = objToCopyType.GetProperty(propertyInfo.Name).GetValue(objToCopy, null); // propertyInfoValue.GetValue(objToCopy, null);

Answer 1

如果我说得对，你试图序列化sharepoint对象？大部分时间它将以流通结束。

SPGroup.Users - ＆gt; SPUser.Groups - ＆gt; SPGroup.Users - ＆gt; ...

因此序列化器将在无限循环或堆栈溢出中运行。更好的方法是构建自己的对象，而没有导致圆形的某些属性。

Serialise对象 - GetProperties（）导致堆栈溢出？

1 个答案: