c#反序列化嵌套的json

我是json的新手——我正在使用现有的json数据结构，并试图输出数据，但现有数据结构的一部分让我感到困惑。

以下是我的json数据：

{"supplier":
    {
    "supplierid":3590,
    "code":"ENCLES",
    "name":"Les Miserables",
    "analyses":[],
    "amenities":[],
    "info":
        "{'"Supplier'":
            {
            '"Name'":'"Les Miserables'",
            '"LastUpdate'":'"2011-11-01T22:16:06Z'",
            '"Address3'":'"London'",
            '"Address2'":'"51 Shaftesbury Avenue'",
            '"PostCode'":'"W1D 6BA'",
            '"Address1'":'"Queen's Theatre'",
            '"Address4'":'"'",
            '"Address5'":'"'",
            '"SupplierId'":3590,
            '"SupplierCode'":'"ENCLES'"
            }
        }",
        ...
        }

让我困惑的是信息数据——它是另一个嵌套的json字符串。

我的课是：

public class TheatreListing
{
    public supplier supplier;
}
public class supplier
{
    public int? supplierid { get; set; }
    public string code { get; set; }
    public string name { get; set; }
    public listingInfo info { get; set; }
}

public class listingInfo
{
    public Address Supplier { get; set; }
}
public class Address
{
    public string Address1 { get; set; }
    public string Address2 { get; set; }
    public string Address3 { get; set; }
    public string Address4 { get; set; }
    public string Address5 { get; set; }
    public string PostCode { get; set; }
}

我尝试访问数据的代码是：

TheatreListing tl = Json.Decode<TheatreListing>(json);
StringBuilder sbb = new StringBuilder();
sbb.Append("Name = " + tl.supplier.name.ToString());
sbb.Append("<br />Supplier ID = " + tl.supplier.supplierid.ToString());
sbb.Append("<br />Code = " + tl.supplier.code.ToString());
sbb.Append("<br />Address = " + tl.supplier.info.Supplier.Address2.ToString());
litOutput.Text += sbb.ToString();

我得到的错误信息是：

Cannot convert object of type 'System.String' to type 'listingInfo'

有人能给我指路吗？

干杯

奈杰尔