关于c＃：将JSON对象转换为实现IEnumerable的集合

convert JSON object to collections which implements IEnumerable

如何将JSON对象转换为实现IEnumerable的集合，以便在foreach中使用

错误："foreach语句无法对"attributes"类型的变量进行操作，因为"attributes"不包含"getEnumerator"的公共定义。"要遍历的.NET代码属性：

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var jsonData = JsonConvert.DeserializeObject<Rootobject>(json);
//RootObject is the class generated from Json using Paste JSON as Classes
var att = jsonData.AnswerTA.Attributes;
foreach (var item in att)<-- This is giving error
{}

JSON文件的一部分：

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{ "FormTitle":"This is Form Title from JSON",
"TitleQuestion1":"This s the Title of Question 1",
"TextQuestion1":"1- This is the text of Quextion umber 1", "AnswerRadioButton": { "visibleRB":"true", "titleRB":"Radio Button Title",
"FieldsetRB":"yes",
"optionRB": [
{
"text":"text1",
"value":"v1",
"checked":"false"
},
{
"text":"text2",
"value":"v2",
"checked":"false"
},
{
"text":"text3",
"value":"v3",
"checked":"false"
},
{
"text":"text4",
"value":"v4",
"checked":"true"
},
{
"text":"text5",
"value":"v4",
"checked":"false"
}
]
}, "AnswerCheckBox": { "visibleCB":"true", "titleCB":"Check box Answer Title", "FieldsetCB":"yes", "optionCB": [
{ "text":"ch text1", "value":"v1", "checked":"false" }, { "text":"tzxcsdcext2", "value":"v2",
"checked":"false"
},
{ "text":"text3", "value":"v3", "checked":"false"
},
{ "text":"text4", "value":"v4", "checked":"true"
}
]}, "AnswerDropDownList": { "visibleDDl":"true", "required":"no", "titleDDL":"Title of Drop Down List", "FieldsetDDL":"yes", "optionDDL": [ { "text":"Select", "value":"" },
{ "text":"IE", "value":"IE" }, {
"text":"Safari", "value":"Safari" },
{ "text":"Chrome", "value":"Chrome"
} ] }, "AnswerTB": { "visibleTB":"true", "required":"no",
"titleTB":"Title of TB", "FieldsetTB":"yes" },
"AnswerTA": {
"visibleTA":"true",
"required":"no",
"titleTA":"Title of TA",
"FieldsetTA":"yes",
"Attributes": {
"placeholder":"this is the watermark",
"title":"this is tooltip",
"maxlength":"10",
"minlength":"5",
"required":"yes"
},
"Style": {
"height":"50px",
"width" : "5px"
}

}}

生成的类

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public class Rootobject{
public string FormTitle { get; set; }
public string TitleQuestion1 { get; set; }
public string TextQuestion1 { get; set; }
public Answerradiobutton AnswerRadioButton { get; set; }
public Answercheckbox AnswerCheckBox { get; set; }
public Answerdropdownlist AnswerDropDownList { get; set; }
public Answertb AnswerTB { get; set; }
public Answerta AnswerTA { get; set; }
}

public class Answerta{
public string visibleTA { get; set; }
public string required { get; set; }
public string titleTA { get; set; }
public string FieldsetTA { get; set; }
public Attributes Attributes { get; set; }
public Style Style { get; set; }
}
public class Attributes{
public string placeholder { get; set; }
public string title { get; set; }
public string maxlength { get; set; }
public string minlength { get; set; }
public string required { get; set; }}